z80.c

/*
 * MIT License
 *
 * Copyright (c) 2017 Mockba the Borg
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <stdlib.h>
#include <stdbool.h>
#include "z80.h"
#include "console.h"

void cpu_out(z80 *cpu, const uint32_t Port, const uint32_t Value) {
//  _Bios();
}

uint32_t cpu_in(z80 *cpu, const uint32_t Port) {
//     _Bdos();
    return(HIGH_REGISTER(AF));
}

/* the following tables precompute some common subexpressions
parityTable[i]          0..255  (number of 1's in i is odd) ? 0 : 4
incTable[i]             0..256! (i & 0xa8) | (((i & 0xff) == 0) << 6) | (((i & 0xf) == 0) << 4)
decTable[i]             0..255  (i & 0xa8) | (((i & 0xff) == 0) << 6) | (((i & 0xf) == 0xf) << 4) | 2
cbitsTable[i]           0..511  (i & 0x10) | ((i >> 8) & 1)
cbitsDup8Table[i]       0..511  (i & 0x10) | ((i >> 8) & 1) | ((i & 0xff) << 8) | (i & 0xa8) | (((i & 0xff) == 0) << 6)
cbitsDup16Table[i]      0..511  (i & 0x10) | ((i >> 8) & 1) | (i & 0x28)
cbits2Table[i]          0..511  (i & 0x10) | ((i >> 8) & 1) | 2
rrcaTable[i]            0..255  ((i & 1) << 15) | ((i >> 1) << 8) | ((i >> 1) & 0x28) | (i & 1)
rraTable[i]             0..255  ((i >> 1) << 8) | ((i >> 1) & 0x28) | (i & 1)
addTable[i]             0..511  ((i & 0xff) << 8) | (i & 0xa8) | (((i & 0xff) == 0) << 6)
subTable[i]             0..255  ((i & 0xff) << 8) | (i & 0xa8) | (((i & 0xff) == 0) << 6) | 2
andTable[i]             0..255  (i << 8) | (i & 0xa8) | ((i == 0) << 6) | 0x10 | parityTable[i]
xororTable[i]           0..255  (i << 8) | (i & 0xa8) | ((i == 0) << 6) | parityTable[i]
rotateShiftTable[i]     0..255  (i & 0xa8) | (((i & 0xff) == 0) << 6) | parityTable[i & 0xff]
incZ80Table[i]          0..256! (i & 0xa8) | (((i & 0xff) == 0) << 6) | (((i & 0xf) == 0) << 4) | ((i == 0x80) << 2)
decZ80Table[i]          0..255  (i & 0xa8) | (((i & 0xff) == 0) << 6) | (((i & 0xf) == 0xf) << 4) | ((i == 0x7f) << 2) | 2
cbitsZ80Table[i]        0..511  (i & 0x10) | (((i >> 6) ^ (i >> 5)) & 4) | ((i >> 8) & 1)
cbitsZ80DupTable[i]     0..511  (i & 0x10) | (((i >> 6) ^ (i >> 5)) & 4) | ((i >> 8) & 1) | (i & 0xa8)
cbits2Z80Table[i]       0..511  (i & 0x10) | (((i >> 6) ^ (i >> 5)) & 4) | ((i >> 8) & 1) | 2
cbits2Z80DupTable[i]    0..511  (i & 0x10) | (((i >> 6) ^ (i >> 5)) & 4) | ((i >> 8) & 1) | 2 | (i & 0xa8)
negTable[i]             0..255  (((i & 0x0f) != 0) << 4) | ((i == 0x80) << 2) | 2 | (i != 0)
rrdrldTable[i]          0..255  (i << 8) | (i & 0xa8) | (((i & 0xff) == 0) << 6) | parityTable[i]
cpTable[i]              0..255  (i & 0x80) | (((i & 0xff) == 0) << 6)
*/

/* parityTable[i] = (number of 1's in i is odd) ? 0 : 4, i = 0..255 */
static const uint8_t parityTable[256] = {
    4,0,0,4,0,4,4,0,0,4,4,0,4,0,0,4,
    0,4,4,0,4,0,0,4,4,0,0,4,0,4,4,0,
    0,4,4,0,4,0,0,4,4,0,0,4,0,4,4,0,
    4,0,0,4,0,4,4,0,0,4,4,0,4,0,0,4,
    0,4,4,0,4,0,0,4,4,0,0,4,0,4,4,0,
    4,0,0,4,0,4,4,0,0,4,4,0,4,0,0,4,
    4,0,0,4,0,4,4,0,0,4,4,0,4,0,0,4,
    0,4,4,0,4,0,0,4,4,0,0,4,0,4,4,0,
    0,4,4,0,4,0,0,4,4,0,0,4,0,4,4,0,
    4,0,0,4,0,4,4,0,0,4,4,0,4,0,0,4,
    4,0,0,4,0,4,4,0,0,4,4,0,4,0,0,4,
    0,4,4,0,4,0,0,4,4,0,0,4,0,4,4,0,
    4,0,0,4,0,4,4,0,0,4,4,0,4,0,0,4,
    0,4,4,0,4,0,0,4,4,0,0,4,0,4,4,0,
    0,4,4,0,4,0,0,4,4,0,0,4,0,4,4,0,
    4,0,0,4,0,4,4,0,0,4,4,0,4,0,0,4,
};

/* incTable[i] = (i & 0xa8) | (((i & 0xff) == 0) << 6) | (((i & 0xf) == 0) << 4), i = 0..256 */
static const uint8_t incTable[257] = {
    80,  0,  0,  0,  0,  0,  0,  0,  8,  8,  8,  8,  8,  8,  8,  8,
    16,  0,  0,  0,  0,  0,  0,  0,  8,  8,  8,  8,  8,  8,  8,  8,
    48, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40,
    48, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40,
    16,  0,  0,  0,  0,  0,  0,  0,  8,  8,  8,  8,  8,  8,  8,  8,
    16,  0,  0,  0,  0,  0,  0,  0,  8,  8,  8,  8,  8,  8,  8,  8,
    48, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40,
    48, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40,
    144,128,128,128,128,128,128,128,136,136,136,136,136,136,136,136,
    144,128,128,128,128,128,128,128,136,136,136,136,136,136,136,136,
    176,160,160,160,160,160,160,160,168,168,168,168,168,168,168,168,
    176,160,160,160,160,160,160,160,168,168,168,168,168,168,168,168,
    144,128,128,128,128,128,128,128,136,136,136,136,136,136,136,136,
    144,128,128,128,128,128,128,128,136,136,136,136,136,136,136,136,
    176,160,160,160,160,160,160,160,168,168,168,168,168,168,168,168,
    176,160,160,160,160,160,160,160,168,168,168,168,168,168,168,168, 80
};

/* decTable[i] = (i & 0xa8) | (((i & 0xff) == 0) << 6) | (((i & 0xf) == 0xf) << 4) | 2, i = 0..255 */
static const uint8_t decTable[256] = {
    66,  2,  2,  2,  2,  2,  2,  2, 10, 10, 10, 10, 10, 10, 10, 26,
    2,  2,  2,  2,  2,  2,  2,  2, 10, 10, 10, 10, 10, 10, 10, 26,
    34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 58,
    34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 58,
    2,  2,  2,  2,  2,  2,  2,  2, 10, 10, 10, 10, 10, 10, 10, 26,
    2,  2,  2,  2,  2,  2,  2,  2, 10, 10, 10, 10, 10, 10, 10, 26,
    34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 58,
    34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 58,
    130,130,130,130,130,130,130,130,138,138,138,138,138,138,138,154,
    130,130,130,130,130,130,130,130,138,138,138,138,138,138,138,154,
    162,162,162,162,162,162,162,162,170,170,170,170,170,170,170,186,
    162,162,162,162,162,162,162,162,170,170,170,170,170,170,170,186,
    130,130,130,130,130,130,130,130,138,138,138,138,138,138,138,154,
    130,130,130,130,130,130,130,130,138,138,138,138,138,138,138,154,
    162,162,162,162,162,162,162,162,170,170,170,170,170,170,170,186,
    162,162,162,162,162,162,162,162,170,170,170,170,170,170,170,186,
};

/* cbitsTable[i] = (i & 0x10) | ((i >> 8) & 1), i = 0..511 */
static const uint8_t cbitsTable[512] = {
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
};

/* cbitsDup8Table[i] = (i & 0x10) | ((i >> 8) & 1) | ((i & 0xff) << 8) | (i & 0xa8) | (((i & 0xff) == 0) << 6), i = 0..511 */
static const uint16_t cbitsDup8Table[512] = {
    0x0040,0x0100,0x0200,0x0300,0x0400,0x0500,0x0600,0x0700,
    0x0808,0x0908,0x0a08,0x0b08,0x0c08,0x0d08,0x0e08,0x0f08,
    0x1010,0x1110,0x1210,0x1310,0x1410,0x1510,0x1610,0x1710,
    0x1818,0x1918,0x1a18,0x1b18,0x1c18,0x1d18,0x1e18,0x1f18,
    0x2020,0x2120,0x2220,0x2320,0x2420,0x2520,0x2620,0x2720,
    0x2828,0x2928,0x2a28,0x2b28,0x2c28,0x2d28,0x2e28,0x2f28,
    0x3030,0x3130,0x3230,0x3330,0x3430,0x3530,0x3630,0x3730,
    0x3838,0x3938,0x3a38,0x3b38,0x3c38,0x3d38,0x3e38,0x3f38,
    0x4000,0x4100,0x4200,0x4300,0x4400,0x4500,0x4600,0x4700,
    0x4808,0x4908,0x4a08,0x4b08,0x4c08,0x4d08,0x4e08,0x4f08,
    0x5010,0x5110,0x5210,0x5310,0x5410,0x5510,0x5610,0x5710,
    0x5818,0x5918,0x5a18,0x5b18,0x5c18,0x5d18,0x5e18,0x5f18,
    0x6020,0x6120,0x6220,0x6320,0x6420,0x6520,0x6620,0x6720,
    0x6828,0x6928,0x6a28,0x6b28,0x6c28,0x6d28,0x6e28,0x6f28,
    0x7030,0x7130,0x7230,0x7330,0x7430,0x7530,0x7630,0x7730,
    0x7838,0x7938,0x7a38,0x7b38,0x7c38,0x7d38,0x7e38,0x7f38,
    0x8080,0x8180,0x8280,0x8380,0x8480,0x8580,0x8680,0x8780,
    0x8888,0x8988,0x8a88,0x8b88,0x8c88,0x8d88,0x8e88,0x8f88,
    0x9090,0x9190,0x9290,0x9390,0x9490,0x9590,0x9690,0x9790,
    0x9898,0x9998,0x9a98,0x9b98,0x9c98,0x9d98,0x9e98,0x9f98,
    0xa0a0,0xa1a0,0xa2a0,0xa3a0,0xa4a0,0xa5a0,0xa6a0,0xa7a0,
    0xa8a8,0xa9a8,0xaaa8,0xaba8,0xaca8,0xada8,0xaea8,0xafa8,
    0xb0b0,0xb1b0,0xb2b0,0xb3b0,0xb4b0,0xb5b0,0xb6b0,0xb7b0,
    0xb8b8,0xb9b8,0xbab8,0xbbb8,0xbcb8,0xbdb8,0xbeb8,0xbfb8,
    0xc080,0xc180,0xc280,0xc380,0xc480,0xc580,0xc680,0xc780,
    0xc888,0xc988,0xca88,0xcb88,0xcc88,0xcd88,0xce88,0xcf88,
    0xd090,0xd190,0xd290,0xd390,0xd490,0xd590,0xd690,0xd790,
    0xd898,0xd998,0xda98,0xdb98,0xdc98,0xdd98,0xde98,0xdf98,
    0xe0a0,0xe1a0,0xe2a0,0xe3a0,0xe4a0,0xe5a0,0xe6a0,0xe7a0,
    0xe8a8,0xe9a8,0xeaa8,0xeba8,0xeca8,0xeda8,0xeea8,0xefa8,
    0xf0b0,0xf1b0,0xf2b0,0xf3b0,0xf4b0,0xf5b0,0xf6b0,0xf7b0,
    0xf8b8,0xf9b8,0xfab8,0xfbb8,0xfcb8,0xfdb8,0xfeb8,0xffb8,
    0x0041,0x0101,0x0201,0x0301,0x0401,0x0501,0x0601,0x0701,
    0x0809,0x0909,0x0a09,0x0b09,0x0c09,0x0d09,0x0e09,0x0f09,
    0x1011,0x1111,0x1211,0x1311,0x1411,0x1511,0x1611,0x1711,
    0x1819,0x1919,0x1a19,0x1b19,0x1c19,0x1d19,0x1e19,0x1f19,
    0x2021,0x2121,0x2221,0x2321,0x2421,0x2521,0x2621,0x2721,
    0x2829,0x2929,0x2a29,0x2b29,0x2c29,0x2d29,0x2e29,0x2f29,
    0x3031,0x3131,0x3231,0x3331,0x3431,0x3531,0x3631,0x3731,
    0x3839,0x3939,0x3a39,0x3b39,0x3c39,0x3d39,0x3e39,0x3f39,
    0x4001,0x4101,0x4201,0x4301,0x4401,0x4501,0x4601,0x4701,
    0x4809,0x4909,0x4a09,0x4b09,0x4c09,0x4d09,0x4e09,0x4f09,
    0x5011,0x5111,0x5211,0x5311,0x5411,0x5511,0x5611,0x5711,
    0x5819,0x5919,0x5a19,0x5b19,0x5c19,0x5d19,0x5e19,0x5f19,
    0x6021,0x6121,0x6221,0x6321,0x6421,0x6521,0x6621,0x6721,
    0x6829,0x6929,0x6a29,0x6b29,0x6c29,0x6d29,0x6e29,0x6f29,
    0x7031,0x7131,0x7231,0x7331,0x7431,0x7531,0x7631,0x7731,
    0x7839,0x7939,0x7a39,0x7b39,0x7c39,0x7d39,0x7e39,0x7f39,
    0x8081,0x8181,0x8281,0x8381,0x8481,0x8581,0x8681,0x8781,
    0x8889,0x8989,0x8a89,0x8b89,0x8c89,0x8d89,0x8e89,0x8f89,
    0x9091,0x9191,0x9291,0x9391,0x9491,0x9591,0x9691,0x9791,
    0x9899,0x9999,0x9a99,0x9b99,0x9c99,0x9d99,0x9e99,0x9f99,
    0xa0a1,0xa1a1,0xa2a1,0xa3a1,0xa4a1,0xa5a1,0xa6a1,0xa7a1,
    0xa8a9,0xa9a9,0xaaa9,0xaba9,0xaca9,0xada9,0xaea9,0xafa9,
    0xb0b1,0xb1b1,0xb2b1,0xb3b1,0xb4b1,0xb5b1,0xb6b1,0xb7b1,
    0xb8b9,0xb9b9,0xbab9,0xbbb9,0xbcb9,0xbdb9,0xbeb9,0xbfb9,
    0xc081,0xc181,0xc281,0xc381,0xc481,0xc581,0xc681,0xc781,
    0xc889,0xc989,0xca89,0xcb89,0xcc89,0xcd89,0xce89,0xcf89,
    0xd091,0xd191,0xd291,0xd391,0xd491,0xd591,0xd691,0xd791,
    0xd899,0xd999,0xda99,0xdb99,0xdc99,0xdd99,0xde99,0xdf99,
    0xe0a1,0xe1a1,0xe2a1,0xe3a1,0xe4a1,0xe5a1,0xe6a1,0xe7a1,
    0xe8a9,0xe9a9,0xeaa9,0xeba9,0xeca9,0xeda9,0xeea9,0xefa9,
    0xf0b1,0xf1b1,0xf2b1,0xf3b1,0xf4b1,0xf5b1,0xf6b1,0xf7b1,
    0xf8b9,0xf9b9,0xfab9,0xfbb9,0xfcb9,0xfdb9,0xfeb9,0xffb9,
};

/* cbitsDup16Table[i] = (i & 0x10) | ((i >> 8) & 1) | (i & 0x28), i = 0..511 */
static const uint8_t cbitsDup16Table[512] = {
    0, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8,
    16,16,16,16,16,16,16,16,24,24,24,24,24,24,24,24,
    32,32,32,32,32,32,32,32,40,40,40,40,40,40,40,40,
    48,48,48,48,48,48,48,48,56,56,56,56,56,56,56,56,
    0, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8,
    16,16,16,16,16,16,16,16,24,24,24,24,24,24,24,24,
    32,32,32,32,32,32,32,32,40,40,40,40,40,40,40,40,
    48,48,48,48,48,48,48,48,56,56,56,56,56,56,56,56,
    0, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8,
    16,16,16,16,16,16,16,16,24,24,24,24,24,24,24,24,
    32,32,32,32,32,32,32,32,40,40,40,40,40,40,40,40,
    48,48,48,48,48,48,48,48,56,56,56,56,56,56,56,56,
    0, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8,
    16,16,16,16,16,16,16,16,24,24,24,24,24,24,24,24,
    32,32,32,32,32,32,32,32,40,40,40,40,40,40,40,40,
    48,48,48,48,48,48,48,48,56,56,56,56,56,56,56,56,
    1, 1, 1, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 9, 9, 9,
    17,17,17,17,17,17,17,17,25,25,25,25,25,25,25,25,
    33,33,33,33,33,33,33,33,41,41,41,41,41,41,41,41,
    49,49,49,49,49,49,49,49,57,57,57,57,57,57,57,57,
    1, 1, 1, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 9, 9, 9,
    17,17,17,17,17,17,17,17,25,25,25,25,25,25,25,25,
    33,33,33,33,33,33,33,33,41,41,41,41,41,41,41,41,
    49,49,49,49,49,49,49,49,57,57,57,57,57,57,57,57,
    1, 1, 1, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 9, 9, 9,
    17,17,17,17,17,17,17,17,25,25,25,25,25,25,25,25,
    33,33,33,33,33,33,33,33,41,41,41,41,41,41,41,41,
    49,49,49,49,49,49,49,49,57,57,57,57,57,57,57,57,
    1, 1, 1, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 9, 9, 9,
    17,17,17,17,17,17,17,17,25,25,25,25,25,25,25,25,
    33,33,33,33,33,33,33,33,41,41,41,41,41,41,41,41,
    49,49,49,49,49,49,49,49,57,57,57,57,57,57,57,57,
};

/* cbits2Table[i] = (i & 0x10) | ((i >> 8) & 1) | 2, i = 0..511 */
static const uint8_t cbits2Table[512] = {
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,
    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
    19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
    19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
    19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
    19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
    19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
    19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
    19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
    19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
};

/* rrcaTable[i] = ((i & 1) << 15) | ((i >> 1) << 8) | ((i >> 1) & 0x28) | (i & 1), i = 0..255 */
static const uint16_t rrcaTable[256] = {
    0x0000,0x8001,0x0100,0x8101,0x0200,0x8201,0x0300,0x8301,
    0x0400,0x8401,0x0500,0x8501,0x0600,0x8601,0x0700,0x8701,
    0x0808,0x8809,0x0908,0x8909,0x0a08,0x8a09,0x0b08,0x8b09,
    0x0c08,0x8c09,0x0d08,0x8d09,0x0e08,0x8e09,0x0f08,0x8f09,
    0x1000,0x9001,0x1100,0x9101,0x1200,0x9201,0x1300,0x9301,
    0x1400,0x9401,0x1500,0x9501,0x1600,0x9601,0x1700,0x9701,
    0x1808,0x9809,0x1908,0x9909,0x1a08,0x9a09,0x1b08,0x9b09,
    0x1c08,0x9c09,0x1d08,0x9d09,0x1e08,0x9e09,0x1f08,0x9f09,
    0x2020,0xa021,0x2120,0xa121,0x2220,0xa221,0x2320,0xa321,
    0x2420,0xa421,0x2520,0xa521,0x2620,0xa621,0x2720,0xa721,
    0x2828,0xa829,0x2928,0xa929,0x2a28,0xaa29,0x2b28,0xab29,
    0x2c28,0xac29,0x2d28,0xad29,0x2e28,0xae29,0x2f28,0xaf29,
    0x3020,0xb021,0x3120,0xb121,0x3220,0xb221,0x3320,0xb321,
    0x3420,0xb421,0x3520,0xb521,0x3620,0xb621,0x3720,0xb721,
    0x3828,0xb829,0x3928,0xb929,0x3a28,0xba29,0x3b28,0xbb29,
    0x3c28,0xbc29,0x3d28,0xbd29,0x3e28,0xbe29,0x3f28,0xbf29,
    0x4000,0xc001,0x4100,0xc101,0x4200,0xc201,0x4300,0xc301,
    0x4400,0xc401,0x4500,0xc501,0x4600,0xc601,0x4700,0xc701,
    0x4808,0xc809,0x4908,0xc909,0x4a08,0xca09,0x4b08,0xcb09,
    0x4c08,0xcc09,0x4d08,0xcd09,0x4e08,0xce09,0x4f08,0xcf09,
    0x5000,0xd001,0x5100,0xd101,0x5200,0xd201,0x5300,0xd301,
    0x5400,0xd401,0x5500,0xd501,0x5600,0xd601,0x5700,0xd701,
    0x5808,0xd809,0x5908,0xd909,0x5a08,0xda09,0x5b08,0xdb09,
    0x5c08,0xdc09,0x5d08,0xdd09,0x5e08,0xde09,0x5f08,0xdf09,
    0x6020,0xe021,0x6120,0xe121,0x6220,0xe221,0x6320,0xe321,
    0x6420,0xe421,0x6520,0xe521,0x6620,0xe621,0x6720,0xe721,
    0x6828,0xe829,0x6928,0xe929,0x6a28,0xea29,0x6b28,0xeb29,
    0x6c28,0xec29,0x6d28,0xed29,0x6e28,0xee29,0x6f28,0xef29,
    0x7020,0xf021,0x7120,0xf121,0x7220,0xf221,0x7320,0xf321,
    0x7420,0xf421,0x7520,0xf521,0x7620,0xf621,0x7720,0xf721,
    0x7828,0xf829,0x7928,0xf929,0x7a28,0xfa29,0x7b28,0xfb29,
    0x7c28,0xfc29,0x7d28,0xfd29,0x7e28,0xfe29,0x7f28,0xff29,
};

/* rraTable[i] = ((i >> 1) << 8) | ((i >> 1) & 0x28) | (i & 1), i = 0..255 */
static const uint16_t rraTable[256] = {
    0x0000,0x0001,0x0100,0x0101,0x0200,0x0201,0x0300,0x0301,
    0x0400,0x0401,0x0500,0x0501,0x0600,0x0601,0x0700,0x0701,
    0x0808,0x0809,0x0908,0x0909,0x0a08,0x0a09,0x0b08,0x0b09,
    0x0c08,0x0c09,0x0d08,0x0d09,0x0e08,0x0e09,0x0f08,0x0f09,
    0x1000,0x1001,0x1100,0x1101,0x1200,0x1201,0x1300,0x1301,
    0x1400,0x1401,0x1500,0x1501,0x1600,0x1601,0x1700,0x1701,
    0x1808,0x1809,0x1908,0x1909,0x1a08,0x1a09,0x1b08,0x1b09,
    0x1c08,0x1c09,0x1d08,0x1d09,0x1e08,0x1e09,0x1f08,0x1f09,
    0x2020,0x2021,0x2120,0x2121,0x2220,0x2221,0x2320,0x2321,
    0x2420,0x2421,0x2520,0x2521,0x2620,0x2621,0x2720,0x2721,
    0x2828,0x2829,0x2928,0x2929,0x2a28,0x2a29,0x2b28,0x2b29,
    0x2c28,0x2c29,0x2d28,0x2d29,0x2e28,0x2e29,0x2f28,0x2f29,
    0x3020,0x3021,0x3120,0x3121,0x3220,0x3221,0x3320,0x3321,
    0x3420,0x3421,0x3520,0x3521,0x3620,0x3621,0x3720,0x3721,
    0x3828,0x3829,0x3928,0x3929,0x3a28,0x3a29,0x3b28,0x3b29,
    0x3c28,0x3c29,0x3d28,0x3d29,0x3e28,0x3e29,0x3f28,0x3f29,
    0x4000,0x4001,0x4100,0x4101,0x4200,0x4201,0x4300,0x4301,
    0x4400,0x4401,0x4500,0x4501,0x4600,0x4601,0x4700,0x4701,
    0x4808,0x4809,0x4908,0x4909,0x4a08,0x4a09,0x4b08,0x4b09,
    0x4c08,0x4c09,0x4d08,0x4d09,0x4e08,0x4e09,0x4f08,0x4f09,
    0x5000,0x5001,0x5100,0x5101,0x5200,0x5201,0x5300,0x5301,
    0x5400,0x5401,0x5500,0x5501,0x5600,0x5601,0x5700,0x5701,
    0x5808,0x5809,0x5908,0x5909,0x5a08,0x5a09,0x5b08,0x5b09,
    0x5c08,0x5c09,0x5d08,0x5d09,0x5e08,0x5e09,0x5f08,0x5f09,
    0x6020,0x6021,0x6120,0x6121,0x6220,0x6221,0x6320,0x6321,
    0x6420,0x6421,0x6520,0x6521,0x6620,0x6621,0x6720,0x6721,
    0x6828,0x6829,0x6928,0x6929,0x6a28,0x6a29,0x6b28,0x6b29,
    0x6c28,0x6c29,0x6d28,0x6d29,0x6e28,0x6e29,0x6f28,0x6f29,
    0x7020,0x7021,0x7120,0x7121,0x7220,0x7221,0x7320,0x7321,
    0x7420,0x7421,0x7520,0x7521,0x7620,0x7621,0x7720,0x7721,
    0x7828,0x7829,0x7928,0x7929,0x7a28,0x7a29,0x7b28,0x7b29,
    0x7c28,0x7c29,0x7d28,0x7d29,0x7e28,0x7e29,0x7f28,0x7f29,
};

/* addTable[i] = ((i & 0xff) << 8) | (i & 0xa8) | (((i & 0xff) == 0) << 6), i = 0..511 */
static const uint16_t addTable[512] = {
    0x0040,0x0100,0x0200,0x0300,0x0400,0x0500,0x0600,0x0700,
    0x0808,0x0908,0x0a08,0x0b08,0x0c08,0x0d08,0x0e08,0x0f08,
    0x1000,0x1100,0x1200,0x1300,0x1400,0x1500,0x1600,0x1700,
    0x1808,0x1908,0x1a08,0x1b08,0x1c08,0x1d08,0x1e08,0x1f08,
    0x2020,0x2120,0x2220,0x2320,0x2420,0x2520,0x2620,0x2720,
    0x2828,0x2928,0x2a28,0x2b28,0x2c28,0x2d28,0x2e28,0x2f28,
    0x3020,0x3120,0x3220,0x3320,0x3420,0x3520,0x3620,0x3720,
    0x3828,0x3928,0x3a28,0x3b28,0x3c28,0x3d28,0x3e28,0x3f28,
    0x4000,0x4100,0x4200,0x4300,0x4400,0x4500,0x4600,0x4700,
    0x4808,0x4908,0x4a08,0x4b08,0x4c08,0x4d08,0x4e08,0x4f08,
    0x5000,0x5100,0x5200,0x5300,0x5400,0x5500,0x5600,0x5700,
    0x5808,0x5908,0x5a08,0x5b08,0x5c08,0x5d08,0x5e08,0x5f08,
    0x6020,0x6120,0x6220,0x6320,0x6420,0x6520,0x6620,0x6720,
    0x6828,0x6928,0x6a28,0x6b28,0x6c28,0x6d28,0x6e28,0x6f28,
    0x7020,0x7120,0x7220,0x7320,0x7420,0x7520,0x7620,0x7720,
    0x7828,0x7928,0x7a28,0x7b28,0x7c28,0x7d28,0x7e28,0x7f28,
    0x8080,0x8180,0x8280,0x8380,0x8480,0x8580,0x8680,0x8780,
    0x8888,0x8988,0x8a88,0x8b88,0x8c88,0x8d88,0x8e88,0x8f88,
    0x9080,0x9180,0x9280,0x9380,0x9480,0x9580,0x9680,0x9780,
    0x9888,0x9988,0x9a88,0x9b88,0x9c88,0x9d88,0x9e88,0x9f88,
    0xa0a0,0xa1a0,0xa2a0,0xa3a0,0xa4a0,0xa5a0,0xa6a0,0xa7a0,
    0xa8a8,0xa9a8,0xaaa8,0xaba8,0xaca8,0xada8,0xaea8,0xafa8,
    0xb0a0,0xb1a0,0xb2a0,0xb3a0,0xb4a0,0xb5a0,0xb6a0,0xb7a0,
    0xb8a8,0xb9a8,0xbaa8,0xbba8,0xbca8,0xbda8,0xbea8,0xbfa8,
    0xc080,0xc180,0xc280,0xc380,0xc480,0xc580,0xc680,0xc780,
    0xc888,0xc988,0xca88,0xcb88,0xcc88,0xcd88,0xce88,0xcf88,
    0xd080,0xd180,0xd280,0xd380,0xd480,0xd580,0xd680,0xd780,
    0xd888,0xd988,0xda88,0xdb88,0xdc88,0xdd88,0xde88,0xdf88,
    0xe0a0,0xe1a0,0xe2a0,0xe3a0,0xe4a0,0xe5a0,0xe6a0,0xe7a0,
    0xe8a8,0xe9a8,0xeaa8,0xeba8,0xeca8,0xeda8,0xeea8,0xefa8,
    0xf0a0,0xf1a0,0xf2a0,0xf3a0,0xf4a0,0xf5a0,0xf6a0,0xf7a0,
    0xf8a8,0xf9a8,0xfaa8,0xfba8,0xfca8,0xfda8,0xfea8,0xffa8,
    0x0040,0x0100,0x0200,0x0300,0x0400,0x0500,0x0600,0x0700,
    0x0808,0x0908,0x0a08,0x0b08,0x0c08,0x0d08,0x0e08,0x0f08,
    0x1000,0x1100,0x1200,0x1300,0x1400,0x1500,0x1600,0x1700,
    0x1808,0x1908,0x1a08,0x1b08,0x1c08,0x1d08,0x1e08,0x1f08,
    0x2020,0x2120,0x2220,0x2320,0x2420,0x2520,0x2620,0x2720,
    0x2828,0x2928,0x2a28,0x2b28,0x2c28,0x2d28,0x2e28,0x2f28,
    0x3020,0x3120,0x3220,0x3320,0x3420,0x3520,0x3620,0x3720,
    0x3828,0x3928,0x3a28,0x3b28,0x3c28,0x3d28,0x3e28,0x3f28,
    0x4000,0x4100,0x4200,0x4300,0x4400,0x4500,0x4600,0x4700,
    0x4808,0x4908,0x4a08,0x4b08,0x4c08,0x4d08,0x4e08,0x4f08,
    0x5000,0x5100,0x5200,0x5300,0x5400,0x5500,0x5600,0x5700,
    0x5808,0x5908,0x5a08,0x5b08,0x5c08,0x5d08,0x5e08,0x5f08,
    0x6020,0x6120,0x6220,0x6320,0x6420,0x6520,0x6620,0x6720,
    0x6828,0x6928,0x6a28,0x6b28,0x6c28,0x6d28,0x6e28,0x6f28,
    0x7020,0x7120,0x7220,0x7320,0x7420,0x7520,0x7620,0x7720,
    0x7828,0x7928,0x7a28,0x7b28,0x7c28,0x7d28,0x7e28,0x7f28,
    0x8080,0x8180,0x8280,0x8380,0x8480,0x8580,0x8680,0x8780,
    0x8888,0x8988,0x8a88,0x8b88,0x8c88,0x8d88,0x8e88,0x8f88,
    0x9080,0x9180,0x9280,0x9380,0x9480,0x9580,0x9680,0x9780,
    0x9888,0x9988,0x9a88,0x9b88,0x9c88,0x9d88,0x9e88,0x9f88,
    0xa0a0,0xa1a0,0xa2a0,0xa3a0,0xa4a0,0xa5a0,0xa6a0,0xa7a0,
    0xa8a8,0xa9a8,0xaaa8,0xaba8,0xaca8,0xada8,0xaea8,0xafa8,
    0xb0a0,0xb1a0,0xb2a0,0xb3a0,0xb4a0,0xb5a0,0xb6a0,0xb7a0,
    0xb8a8,0xb9a8,0xbaa8,0xbba8,0xbca8,0xbda8,0xbea8,0xbfa8,
    0xc080,0xc180,0xc280,0xc380,0xc480,0xc580,0xc680,0xc780,
    0xc888,0xc988,0xca88,0xcb88,0xcc88,0xcd88,0xce88,0xcf88,
    0xd080,0xd180,0xd280,0xd380,0xd480,0xd580,0xd680,0xd780,
    0xd888,0xd988,0xda88,0xdb88,0xdc88,0xdd88,0xde88,0xdf88,
    0xe0a0,0xe1a0,0xe2a0,0xe3a0,0xe4a0,0xe5a0,0xe6a0,0xe7a0,
    0xe8a8,0xe9a8,0xeaa8,0xeba8,0xeca8,0xeda8,0xeea8,0xefa8,
    0xf0a0,0xf1a0,0xf2a0,0xf3a0,0xf4a0,0xf5a0,0xf6a0,0xf7a0,
    0xf8a8,0xf9a8,0xfaa8,0xfba8,0xfca8,0xfda8,0xfea8,0xffa8,
};

/* subTable[i] = ((i & 0xff) << 8) | (i & 0xa8) | (((i & 0xff) == 0) << 6) | 2, i = 0..255 */
static const uint16_t subTable[256] = {
    0x0042,0x0102,0x0202,0x0302,0x0402,0x0502,0x0602,0x0702,
    0x080a,0x090a,0x0a0a,0x0b0a,0x0c0a,0x0d0a,0x0e0a,0x0f0a,
    0x1002,0x1102,0x1202,0x1302,0x1402,0x1502,0x1602,0x1702,
    0x180a,0x190a,0x1a0a,0x1b0a,0x1c0a,0x1d0a,0x1e0a,0x1f0a,
    0x2022,0x2122,0x2222,0x2322,0x2422,0x2522,0x2622,0x2722,
    0x282a,0x292a,0x2a2a,0x2b2a,0x2c2a,0x2d2a,0x2e2a,0x2f2a,
    0x3022,0x3122,0x3222,0x3322,0x3422,0x3522,0x3622,0x3722,
    0x382a,0x392a,0x3a2a,0x3b2a,0x3c2a,0x3d2a,0x3e2a,0x3f2a,
    0x4002,0x4102,0x4202,0x4302,0x4402,0x4502,0x4602,0x4702,
    0x480a,0x490a,0x4a0a,0x4b0a,0x4c0a,0x4d0a,0x4e0a,0x4f0a,
    0x5002,0x5102,0x5202,0x5302,0x5402,0x5502,0x5602,0x5702,
    0x580a,0x590a,0x5a0a,0x5b0a,0x5c0a,0x5d0a,0x5e0a,0x5f0a,
    0x6022,0x6122,0x6222,0x6322,0x6422,0x6522,0x6622,0x6722,
    0x682a,0x692a,0x6a2a,0x6b2a,0x6c2a,0x6d2a,0x6e2a,0x6f2a,
    0x7022,0x7122,0x7222,0x7322,0x7422,0x7522,0x7622,0x7722,
    0x782a,0x792a,0x7a2a,0x7b2a,0x7c2a,0x7d2a,0x7e2a,0x7f2a,
    0x8082,0x8182,0x8282,0x8382,0x8482,0x8582,0x8682,0x8782,
    0x888a,0x898a,0x8a8a,0x8b8a,0x8c8a,0x8d8a,0x8e8a,0x8f8a,
    0x9082,0x9182,0x9282,0x9382,0x9482,0x9582,0x9682,0x9782,
    0x988a,0x998a,0x9a8a,0x9b8a,0x9c8a,0x9d8a,0x9e8a,0x9f8a,
    0xa0a2,0xa1a2,0xa2a2,0xa3a2,0xa4a2,0xa5a2,0xa6a2,0xa7a2,
    0xa8aa,0xa9aa,0xaaaa,0xabaa,0xacaa,0xadaa,0xaeaa,0xafaa,
    0xb0a2,0xb1a2,0xb2a2,0xb3a2,0xb4a2,0xb5a2,0xb6a2,0xb7a2,
    0xb8aa,0xb9aa,0xbaaa,0xbbaa,0xbcaa,0xbdaa,0xbeaa,0xbfaa,
    0xc082,0xc182,0xc282,0xc382,0xc482,0xc582,0xc682,0xc782,
    0xc88a,0xc98a,0xca8a,0xcb8a,0xcc8a,0xcd8a,0xce8a,0xcf8a,
    0xd082,0xd182,0xd282,0xd382,0xd482,0xd582,0xd682,0xd782,
    0xd88a,0xd98a,0xda8a,0xdb8a,0xdc8a,0xdd8a,0xde8a,0xdf8a,
    0xe0a2,0xe1a2,0xe2a2,0xe3a2,0xe4a2,0xe5a2,0xe6a2,0xe7a2,
    0xe8aa,0xe9aa,0xeaaa,0xebaa,0xecaa,0xedaa,0xeeaa,0xefaa,
    0xf0a2,0xf1a2,0xf2a2,0xf3a2,0xf4a2,0xf5a2,0xf6a2,0xf7a2,
    0xf8aa,0xf9aa,0xfaaa,0xfbaa,0xfcaa,0xfdaa,0xfeaa,0xffaa,
};

/* andTable[i] = (i << 8) | (i & 0xa8) | ((i == 0) << 6) | 0x10 | parityTable[i], i = 0..255 */
static const uint16_t andTable[256] = {
    0x0054,0x0110,0x0210,0x0314,0x0410,0x0514,0x0614,0x0710,
    0x0818,0x091c,0x0a1c,0x0b18,0x0c1c,0x0d18,0x0e18,0x0f1c,
    0x1010,0x1114,0x1214,0x1310,0x1414,0x1510,0x1610,0x1714,
    0x181c,0x1918,0x1a18,0x1b1c,0x1c18,0x1d1c,0x1e1c,0x1f18,
    0x2030,0x2134,0x2234,0x2330,0x2434,0x2530,0x2630,0x2734,
    0x283c,0x2938,0x2a38,0x2b3c,0x2c38,0x2d3c,0x2e3c,0x2f38,
    0x3034,0x3130,0x3230,0x3334,0x3430,0x3534,0x3634,0x3730,
    0x3838,0x393c,0x3a3c,0x3b38,0x3c3c,0x3d38,0x3e38,0x3f3c,
    0x4010,0x4114,0x4214,0x4310,0x4414,0x4510,0x4610,0x4714,
    0x481c,0x4918,0x4a18,0x4b1c,0x4c18,0x4d1c,0x4e1c,0x4f18,
    0x5014,0x5110,0x5210,0x5314,0x5410,0x5514,0x5614,0x5710,
    0x5818,0x591c,0x5a1c,0x5b18,0x5c1c,0x5d18,0x5e18,0x5f1c,
    0x6034,0x6130,0x6230,0x6334,0x6430,0x6534,0x6634,0x6730,
    0x6838,0x693c,0x6a3c,0x6b38,0x6c3c,0x6d38,0x6e38,0x6f3c,
    0x7030,0x7134,0x7234,0x7330,0x7434,0x7530,0x7630,0x7734,
    0x783c,0x7938,0x7a38,0x7b3c,0x7c38,0x7d3c,0x7e3c,0x7f38,
    0x8090,0x8194,0x8294,0x8390,0x8494,0x8590,0x8690,0x8794,
    0x889c,0x8998,0x8a98,0x8b9c,0x8c98,0x8d9c,0x8e9c,0x8f98,
    0x9094,0x9190,0x9290,0x9394,0x9490,0x9594,0x9694,0x9790,
    0x9898,0x999c,0x9a9c,0x9b98,0x9c9c,0x9d98,0x9e98,0x9f9c,
    0xa0b4,0xa1b0,0xa2b0,0xa3b4,0xa4b0,0xa5b4,0xa6b4,0xa7b0,
    0xa8b8,0xa9bc,0xaabc,0xabb8,0xacbc,0xadb8,0xaeb8,0xafbc,
    0xb0b0,0xb1b4,0xb2b4,0xb3b0,0xb4b4,0xb5b0,0xb6b0,0xb7b4,
    0xb8bc,0xb9b8,0xbab8,0xbbbc,0xbcb8,0xbdbc,0xbebc,0xbfb8,
    0xc094,0xc190,0xc290,0xc394,0xc490,0xc594,0xc694,0xc790,
    0xc898,0xc99c,0xca9c,0xcb98,0xcc9c,0xcd98,0xce98,0xcf9c,
    0xd090,0xd194,0xd294,0xd390,0xd494,0xd590,0xd690,0xd794,
    0xd89c,0xd998,0xda98,0xdb9c,0xdc98,0xdd9c,0xde9c,0xdf98,
    0xe0b0,0xe1b4,0xe2b4,0xe3b0,0xe4b4,0xe5b0,0xe6b0,0xe7b4,
    0xe8bc,0xe9b8,0xeab8,0xebbc,0xecb8,0xedbc,0xeebc,0xefb8,
    0xf0b4,0xf1b0,0xf2b0,0xf3b4,0xf4b0,0xf5b4,0xf6b4,0xf7b0,
    0xf8b8,0xf9bc,0xfabc,0xfbb8,0xfcbc,0xfdb8,0xfeb8,0xffbc,
};

/* xororTable[i] = (i << 8) | (i & 0xa8) | ((i == 0) << 6) | parityTable[i], i = 0..255 */
static const uint16_t xororTable[256] = {
    0x0044,0x0100,0x0200,0x0304,0x0400,0x0504,0x0604,0x0700,
    0x0808,0x090c,0x0a0c,0x0b08,0x0c0c,0x0d08,0x0e08,0x0f0c,
    0x1000,0x1104,0x1204,0x1300,0x1404,0x1500,0x1600,0x1704,
    0x180c,0x1908,0x1a08,0x1b0c,0x1c08,0x1d0c,0x1e0c,0x1f08,
    0x2020,0x2124,0x2224,0x2320,0x2424,0x2520,0x2620,0x2724,
    0x282c,0x2928,0x2a28,0x2b2c,0x2c28,0x2d2c,0x2e2c,0x2f28,
    0x3024,0x3120,0x3220,0x3324,0x3420,0x3524,0x3624,0x3720,
    0x3828,0x392c,0x3a2c,0x3b28,0x3c2c,0x3d28,0x3e28,0x3f2c,
    0x4000,0x4104,0x4204,0x4300,0x4404,0x4500,0x4600,0x4704,
    0x480c,0x4908,0x4a08,0x4b0c,0x4c08,0x4d0c,0x4e0c,0x4f08,
    0x5004,0x5100,0x5200,0x5304,0x5400,0x5504,0x5604,0x5700,
    0x5808,0x590c,0x5a0c,0x5b08,0x5c0c,0x5d08,0x5e08,0x5f0c,
    0x6024,0x6120,0x6220,0x6324,0x6420,0x6524,0x6624,0x6720,
    0x6828,0x692c,0x6a2c,0x6b28,0x6c2c,0x6d28,0x6e28,0x6f2c,
    0x7020,0x7124,0x7224,0x7320,0x7424,0x7520,0x7620,0x7724,
    0x782c,0x7928,0x7a28,0x7b2c,0x7c28,0x7d2c,0x7e2c,0x7f28,
    0x8080,0x8184,0x8284,0x8380,0x8484,0x8580,0x8680,0x8784,
    0x888c,0x8988,0x8a88,0x8b8c,0x8c88,0x8d8c,0x8e8c,0x8f88,
    0x9084,0x9180,0x9280,0x9384,0x9480,0x9584,0x9684,0x9780,
    0x9888,0x998c,0x9a8c,0x9b88,0x9c8c,0x9d88,0x9e88,0x9f8c,
    0xa0a4,0xa1a0,0xa2a0,0xa3a4,0xa4a0,0xa5a4,0xa6a4,0xa7a0,
    0xa8a8,0xa9ac,0xaaac,0xaba8,0xacac,0xada8,0xaea8,0xafac,
    0xb0a0,0xb1a4,0xb2a4,0xb3a0,0xb4a4,0xb5a0,0xb6a0,0xb7a4,
    0xb8ac,0xb9a8,0xbaa8,0xbbac,0xbca8,0xbdac,0xbeac,0xbfa8,
    0xc084,0xc180,0xc280,0xc384,0xc480,0xc584,0xc684,0xc780,
    0xc888,0xc98c,0xca8c,0xcb88,0xcc8c,0xcd88,0xce88,0xcf8c,
    0xd080,0xd184,0xd284,0xd380,0xd484,0xd580,0xd680,0xd784,
    0xd88c,0xd988,0xda88,0xdb8c,0xdc88,0xdd8c,0xde8c,0xdf88,
    0xe0a0,0xe1a4,0xe2a4,0xe3a0,0xe4a4,0xe5a0,0xe6a0,0xe7a4,
    0xe8ac,0xe9a8,0xeaa8,0xebac,0xeca8,0xedac,0xeeac,0xefa8,
    0xf0a4,0xf1a0,0xf2a0,0xf3a4,0xf4a0,0xf5a4,0xf6a4,0xf7a0,
    0xf8a8,0xf9ac,0xfaac,0xfba8,0xfcac,0xfda8,0xfea8,0xffac,
};

/* rotateShiftTable[i] = (i & 0xa8) | (((i & 0xff) == 0) << 6) | parityTable[i & 0xff], i = 0..255 */
static const uint8_t rotateShiftTable[256] = {
    68,  0,  0,  4,  0,  4,  4,  0,  8, 12, 12,  8, 12,  8,  8, 12,
    0,  4,  4,  0,  4,  0,  0,  4, 12,  8,  8, 12,  8, 12, 12,  8,
    32, 36, 36, 32, 36, 32, 32, 36, 44, 40, 40, 44, 40, 44, 44, 40,
    36, 32, 32, 36, 32, 36, 36, 32, 40, 44, 44, 40, 44, 40, 40, 44,
    0,  4,  4,  0,  4,  0,  0,  4, 12,  8,  8, 12,  8, 12, 12,  8,
    4,  0,  0,  4,  0,  4,  4,  0,  8, 12, 12,  8, 12,  8,  8, 12,
    36, 32, 32, 36, 32, 36, 36, 32, 40, 44, 44, 40, 44, 40, 40, 44,
    32, 36, 36, 32, 36, 32, 32, 36, 44, 40, 40, 44, 40, 44, 44, 40,
    128,132,132,128,132,128,128,132,140,136,136,140,136,140,140,136,
    132,128,128,132,128,132,132,128,136,140,140,136,140,136,136,140,
    164,160,160,164,160,164,164,160,168,172,172,168,172,168,168,172,
    160,164,164,160,164,160,160,164,172,168,168,172,168,172,172,168,
    132,128,128,132,128,132,132,128,136,140,140,136,140,136,136,140,
    128,132,132,128,132,128,128,132,140,136,136,140,136,140,140,136,
    160,164,164,160,164,160,160,164,172,168,168,172,168,172,172,168,
    164,160,160,164,160,164,164,160,168,172,172,168,172,168,168,172,
};

/* incZ80Table[i] = (i & 0xa8) | (((i & 0xff) == 0) << 6) | (((i & 0xf) == 0) << 4) | ((i == 0x80) << 2), i = 0..256 */
static const uint8_t incZ80Table[257] = {
    80,  0,  0,  0,  0,  0,  0,  0,  8,  8,  8,  8,  8,  8,  8,  8,
    16,  0,  0,  0,  0,  0,  0,  0,  8,  8,  8,  8,  8,  8,  8,  8,
    48, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40,
    48, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40,
    16,  0,  0,  0,  0,  0,  0,  0,  8,  8,  8,  8,  8,  8,  8,  8,
    16,  0,  0,  0,  0,  0,  0,  0,  8,  8,  8,  8,  8,  8,  8,  8,
    48, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40,
    48, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40,
    148,128,128,128,128,128,128,128,136,136,136,136,136,136,136,136,
    144,128,128,128,128,128,128,128,136,136,136,136,136,136,136,136,
    176,160,160,160,160,160,160,160,168,168,168,168,168,168,168,168,
    176,160,160,160,160,160,160,160,168,168,168,168,168,168,168,168,
    144,128,128,128,128,128,128,128,136,136,136,136,136,136,136,136,
    144,128,128,128,128,128,128,128,136,136,136,136,136,136,136,136,
    176,160,160,160,160,160,160,160,168,168,168,168,168,168,168,168,
    176,160,160,160,160,160,160,160,168,168,168,168,168,168,168,168, 80,
};

/* decZ80Table[i] = (i & 0xa8) | (((i & 0xff) == 0) << 6) | (((i & 0xf) == 0xf) << 4) | ((i == 0x7f) << 2) | 2, i = 0..255 */
static const uint8_t decZ80Table[256] = {
    66,  2,  2,  2,  2,  2,  2,  2, 10, 10, 10, 10, 10, 10, 10, 26,
    2,  2,  2,  2,  2,  2,  2,  2, 10, 10, 10, 10, 10, 10, 10, 26,
    34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 58,
    34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 58,
    2,  2,  2,  2,  2,  2,  2,  2, 10, 10, 10, 10, 10, 10, 10, 26,
    2,  2,  2,  2,  2,  2,  2,  2, 10, 10, 10, 10, 10, 10, 10, 26,
    34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 58,
    34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 62,
    130,130,130,130,130,130,130,130,138,138,138,138,138,138,138,154,
    130,130,130,130,130,130,130,130,138,138,138,138,138,138,138,154,
    162,162,162,162,162,162,162,162,170,170,170,170,170,170,170,186,
    162,162,162,162,162,162,162,162,170,170,170,170,170,170,170,186,
    130,130,130,130,130,130,130,130,138,138,138,138,138,138,138,154,
    130,130,130,130,130,130,130,130,138,138,138,138,138,138,138,154,
    162,162,162,162,162,162,162,162,170,170,170,170,170,170,170,186,
    162,162,162,162,162,162,162,162,170,170,170,170,170,170,170,186,
};

/* cbitsZ80Table[i] = (i & 0x10) | (((i >> 6) ^ (i >> 5)) & 4) | ((i >> 8) & 1), i = 0..511 */
static const uint8_t cbitsZ80Table[512] = {
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
    20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,
    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
    20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,
    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
    20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,
    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
    20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,
    5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
    21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,
    5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
    21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,
    5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
    21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,
    5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
    21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
};

/* cbitsZ80DupTable[i] = (i & 0x10) | (((i >> 6) ^ (i >> 5)) & 4) | ((i >> 8) & 1) | (i & 0xa8), i = 0..511 */
static const uint8_t cbitsZ80DupTable[512] = {
    0,  0,  0,  0,  0,  0,  0,  0,  8,  8,  8,  8,  8,  8,  8,  8,
    16, 16, 16, 16, 16, 16, 16, 16, 24, 24, 24, 24, 24, 24, 24, 24,
    32, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40,
    48, 48, 48, 48, 48, 48, 48, 48, 56, 56, 56, 56, 56, 56, 56, 56,
    0,  0,  0,  0,  0,  0,  0,  0,  8,  8,  8,  8,  8,  8,  8,  8,
    16, 16, 16, 16, 16, 16, 16, 16, 24, 24, 24, 24, 24, 24, 24, 24,
    32, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 40, 40, 40,
    48, 48, 48, 48, 48, 48, 48, 48, 56, 56, 56, 56, 56, 56, 56, 56,
    132,132,132,132,132,132,132,132,140,140,140,140,140,140,140,140,
    148,148,148,148,148,148,148,148,156,156,156,156,156,156,156,156,
    164,164,164,164,164,164,164,164,172,172,172,172,172,172,172,172,
    180,180,180,180,180,180,180,180,188,188,188,188,188,188,188,188,
    132,132,132,132,132,132,132,132,140,140,140,140,140,140,140,140,
    148,148,148,148,148,148,148,148,156,156,156,156,156,156,156,156,
    164,164,164,164,164,164,164,164,172,172,172,172,172,172,172,172,
    180,180,180,180,180,180,180,180,188,188,188,188,188,188,188,188,
    5,  5,  5,  5,  5,  5,  5,  5, 13, 13, 13, 13, 13, 13, 13, 13,
    21, 21, 21, 21, 21, 21, 21, 21, 29, 29, 29, 29, 29, 29, 29, 29,
    37, 37, 37, 37, 37, 37, 37, 37, 45, 45, 45, 45, 45, 45, 45, 45,
    53, 53, 53, 53, 53, 53, 53, 53, 61, 61, 61, 61, 61, 61, 61, 61,
    5,  5,  5,  5,  5,  5,  5,  5, 13, 13, 13, 13, 13, 13, 13, 13,
    21, 21, 21, 21, 21, 21, 21, 21, 29, 29, 29, 29, 29, 29, 29, 29,
    37, 37, 37, 37, 37, 37, 37, 37, 45, 45, 45, 45, 45, 45, 45, 45,
    53, 53, 53, 53, 53, 53, 53, 53, 61, 61, 61, 61, 61, 61, 61, 61,
    129,129,129,129,129,129,129,129,137,137,137,137,137,137,137,137,
    145,145,145,145,145,145,145,145,153,153,153,153,153,153,153,153,
    161,161,161,161,161,161,161,161,169,169,169,169,169,169,169,169,
    177,177,177,177,177,177,177,177,185,185,185,185,185,185,185,185,
    129,129,129,129,129,129,129,129,137,137,137,137,137,137,137,137,
    145,145,145,145,145,145,145,145,153,153,153,153,153,153,153,153,
    161,161,161,161,161,161,161,161,169,169,169,169,169,169,169,169,
    177,177,177,177,177,177,177,177,185,185,185,185,185,185,185,185,
};

/* cbits2Z80Table[i] = (i & 0x10) | (((i >> 6) ^ (i >> 5)) & 4) | ((i >> 8) & 1) | 2, i = 0..511 */
static const uint8_t cbits2Z80Table[512] = {
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,
    6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
    22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,
    6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
    22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,
    6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
    22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,
    6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
    22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,
    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
    23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,
    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
    23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,
    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
    23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,
    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
    23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,
    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
    19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
    19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
    19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
    19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
};

/* cbits2Z80DupTable[i] = (i & 0x10) | (((i >> 6) ^ (i >> 5)) & 4) | ((i >> 8) & 1) | 2 | (i & 0xa8), i = 0..511 */
static const uint8_t cbits2Z80DupTable[512] = {
    2,  2,  2,  2,  2,  2,  2,  2, 10, 10, 10, 10, 10, 10, 10, 10,
    18, 18, 18, 18, 18, 18, 18, 18, 26, 26, 26, 26, 26, 26, 26, 26,
    34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 42,
    50, 50, 50, 50, 50, 50, 50, 50, 58, 58, 58, 58, 58, 58, 58, 58,
    2,  2,  2,  2,  2,  2,  2,  2, 10, 10, 10, 10, 10, 10, 10, 10,
    18, 18, 18, 18, 18, 18, 18, 18, 26, 26, 26, 26, 26, 26, 26, 26,
    34, 34, 34, 34, 34, 34, 34, 34, 42, 42, 42, 42, 42, 42, 42, 42,
    50, 50, 50, 50, 50, 50, 50, 50, 58, 58, 58, 58, 58, 58, 58, 58,
    134,134,134,134,134,134,134,134,142,142,142,142,142,142,142,142,
    150,150,150,150,150,150,150,150,158,158,158,158,158,158,158,158,
    166,166,166,166,166,166,166,166,174,174,174,174,174,174,174,174,
    182,182,182,182,182,182,182,182,190,190,190,190,190,190,190,190,
    134,134,134,134,134,134,134,134,142,142,142,142,142,142,142,142,
    150,150,150,150,150,150,150,150,158,158,158,158,158,158,158,158,
    166,166,166,166,166,166,166,166,174,174,174,174,174,174,174,174,
    182,182,182,182,182,182,182,182,190,190,190,190,190,190,190,190,
    7,  7,  7,  7,  7,  7,  7,  7, 15, 15, 15, 15, 15, 15, 15, 15,
    23, 23, 23, 23, 23, 23, 23, 23, 31, 31, 31, 31, 31, 31, 31, 31,
    39, 39, 39, 39, 39, 39, 39, 39, 47, 47, 47, 47, 47, 47, 47, 47,
    55, 55, 55, 55, 55, 55, 55, 55, 63, 63, 63, 63, 63, 63, 63, 63,
    7,  7,  7,  7,  7,  7,  7,  7, 15, 15, 15, 15, 15, 15, 15, 15,
    23, 23, 23, 23, 23, 23, 23, 23, 31, 31, 31, 31, 31, 31, 31, 31,
    39, 39, 39, 39, 39, 39, 39, 39, 47, 47, 47, 47, 47, 47, 47, 47,
    55, 55, 55, 55, 55, 55, 55, 55, 63, 63, 63, 63, 63, 63, 63, 63,
    131,131,131,131,131,131,131,131,139,139,139,139,139,139,139,139,
    147,147,147,147,147,147,147,147,155,155,155,155,155,155,155,155,
    163,163,163,163,163,163,163,163,171,171,171,171,171,171,171,171,
    179,179,179,179,179,179,179,179,187,187,187,187,187,187,187,187,
    131,131,131,131,131,131,131,131,139,139,139,139,139,139,139,139,
    147,147,147,147,147,147,147,147,155,155,155,155,155,155,155,155,
    163,163,163,163,163,163,163,163,171,171,171,171,171,171,171,171,
    179,179,179,179,179,179,179,179,187,187,187,187,187,187,187,187,
};

/* negTable[i] = (((i & 0x0f) != 0) << 4) | ((i == 0x80) << 2) | 2 | (i != 0), i = 0..255 */
static const uint8_t negTable[256] = {
    2,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    7,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
    3,19,19,19,19,19,19,19,19,19,19,19,19,19,19,19,
};

/* rrdrldTable[i] = (i << 8) | (i & 0xa8) | (((i & 0xff) == 0) << 6) | parityTable[i], i = 0..255 */
static const uint16_t rrdrldTable[256] = {
    0x0044,0x0100,0x0200,0x0304,0x0400,0x0504,0x0604,0x0700,
    0x0808,0x090c,0x0a0c,0x0b08,0x0c0c,0x0d08,0x0e08,0x0f0c,
    0x1000,0x1104,0x1204,0x1300,0x1404,0x1500,0x1600,0x1704,
    0x180c,0x1908,0x1a08,0x1b0c,0x1c08,0x1d0c,0x1e0c,0x1f08,
    0x2020,0x2124,0x2224,0x2320,0x2424,0x2520,0x2620,0x2724,
    0x282c,0x2928,0x2a28,0x2b2c,0x2c28,0x2d2c,0x2e2c,0x2f28,
    0x3024,0x3120,0x3220,0x3324,0x3420,0x3524,0x3624,0x3720,
    0x3828,0x392c,0x3a2c,0x3b28,0x3c2c,0x3d28,0x3e28,0x3f2c,
    0x4000,0x4104,0x4204,0x4300,0x4404,0x4500,0x4600,0x4704,
    0x480c,0x4908,0x4a08,0x4b0c,0x4c08,0x4d0c,0x4e0c,0x4f08,
    0x5004,0x5100,0x5200,0x5304,0x5400,0x5504,0x5604,0x5700,
    0x5808,0x590c,0x5a0c,0x5b08,0x5c0c,0x5d08,0x5e08,0x5f0c,
    0x6024,0x6120,0x6220,0x6324,0x6420,0x6524,0x6624,0x6720,
    0x6828,0x692c,0x6a2c,0x6b28,0x6c2c,0x6d28,0x6e28,0x6f2c,
    0x7020,0x7124,0x7224,0x7320,0x7424,0x7520,0x7620,0x7724,
    0x782c,0x7928,0x7a28,0x7b2c,0x7c28,0x7d2c,0x7e2c,0x7f28,
    0x8080,0x8184,0x8284,0x8380,0x8484,0x8580,0x8680,0x8784,
    0x888c,0x8988,0x8a88,0x8b8c,0x8c88,0x8d8c,0x8e8c,0x8f88,
    0x9084,0x9180,0x9280,0x9384,0x9480,0x9584,0x9684,0x9780,
    0x9888,0x998c,0x9a8c,0x9b88,0x9c8c,0x9d88,0x9e88,0x9f8c,
    0xa0a4,0xa1a0,0xa2a0,0xa3a4,0xa4a0,0xa5a4,0xa6a4,0xa7a0,
    0xa8a8,0xa9ac,0xaaac,0xaba8,0xacac,0xada8,0xaea8,0xafac,
    0xb0a0,0xb1a4,0xb2a4,0xb3a0,0xb4a4,0xb5a0,0xb6a0,0xb7a4,
    0xb8ac,0xb9a8,0xbaa8,0xbbac,0xbca8,0xbdac,0xbeac,0xbfa8,
    0xc084,0xc180,0xc280,0xc384,0xc480,0xc584,0xc684,0xc780,
    0xc888,0xc98c,0xca8c,0xcb88,0xcc8c,0xcd88,0xce88,0xcf8c,
    0xd080,0xd184,0xd284,0xd380,0xd484,0xd580,0xd680,0xd784,
    0xd88c,0xd988,0xda88,0xdb8c,0xdc88,0xdd8c,0xde8c,0xdf88,
    0xe0a0,0xe1a4,0xe2a4,0xe3a0,0xe4a4,0xe5a0,0xe6a0,0xe7a4,
    0xe8ac,0xe9a8,0xeaa8,0xebac,0xeca8,0xedac,0xeeac,0xefa8,
    0xf0a4,0xf1a0,0xf2a0,0xf3a4,0xf4a0,0xf5a4,0xf6a4,0xf7a0,
    0xf8a8,0xf9ac,0xfaac,0xfba8,0xfcac,0xfda8,0xfea8,0xffac,
};

/* cpTable[i] = (i & 0x80) | (((i & 0xff) == 0) << 6), i = 0..255 */
static const uint8_t cpTable[256] = {
    64,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
    128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
    128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
    128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
    128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
    128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
    128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
    128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
};

#if defined(DEBUG) || defined(iDEBUG)
static const char *Mnemonics[256] =
{
    "NOP", "LD BC,#h", "LD (BC),A", "INC BC", "INC B", "DEC B", "LD B,*h", "RLCA",
    "EX AF,AF'", "ADD HL,BC", "LD A,(BC)", "DEC BC", "INC C", "DEC C", "LD C,*h", "RRCA",
    "DJNZ @h", "LD DE,#h", "LD (DE),A", "INC DE", "INC D", "DEC D", "LD D,*h", "RLA",
    "JR @h", "ADD HL,DE", "LD A,(DE)", "DEC DE", "INC E", "DEC E", "LD E,*h", "RRA",
    "JR NZ,@h", "LD HL,#h", "LD (#h),HL", "INC HL", "INC H", "DEC H", "LD H,*h", "DAA",
    "JR Z,@h", "ADD HL,HL", "LD HL,(#h)", "DEC HL", "INC L", "DEC L", "LD L,*h", "CPL",
    "JR NC,@h", "LD SP,#h", "LD (#h),A", "INC SP", "INC (HL)", "DEC (HL)", "LD (HL),*h", "SCF",
    "JR C,@h", "ADD HL,SP", "LD A,(#h)", "DEC SP", "INC A", "DEC A", "LD A,*h", "CCF",
    "LD B,B", "LD B,C", "LD B,D", "LD B,E", "LD B,H", "LD B,L", "LD B,(HL)", "LD B,A",
    "LD C,B", "LD C,C", "LD C,D", "LD C,E", "LD C,H", "LD C,L", "LD C,(HL)", "LD C,A",
    "LD D,B", "LD D,C", "LD D,D", "LD D,E", "LD D,H", "LD D,L", "LD D,(HL)", "LD D,A",
    "LD E,B", "LD E,C", "LD E,D", "LD E,E", "LD E,H", "LD E,L", "LD E,(HL)", "LD E,A",
    "LD H,B", "LD H,C", "LD H,D", "LD H,E", "LD H,H", "LD H,L", "LD H,(HL)", "LD H,A",
    "LD L,B", "LD L,C", "LD L,D", "LD L,E", "LD L,H", "LD L,L", "LD L,(HL)", "LD L,A",
    "LD (HL),B", "LD (HL),C", "LD (HL),D", "LD (HL),E", "LD (HL),H", "LD (HL),L", "HALT", "LD (HL),A",
    "LD A,B", "LD A,C", "LD A,D", "LD A,E", "LD A,H", "LD A,L", "LD A,(HL)", "LD A,A",
    "ADD B", "ADD C", "ADD D", "ADD E", "ADD H", "ADD L", "ADD (HL)", "ADD A",
    "ADC B", "ADC C", "ADC D", "ADC E", "ADC H", "ADC L", "ADC (HL)", "ADC A",
    "SUB B", "SUB C", "SUB D", "SUB E", "SUB H", "SUB L", "SUB (HL)", "SUB A",
    "SBC B", "SBC C", "SBC D", "SBC E", "SBC H", "SBC L", "SBC (HL)", "SBC A",
    "AND B", "AND C", "AND D", "AND E", "AND H", "AND L", "AND (HL)", "AND A",
    "XOR B", "XOR C", "XOR D", "XOR E", "XOR H", "XOR L", "XOR (HL)", "XOR A",
    "OR B", "OR C", "OR D", "OR E", "OR H", "OR L", "OR (HL)", "OR A",
    "CP B", "CP C", "CP D", "CP E", "CP H", "CP L", "CP (HL)", "CP A",
    "RET NZ", "POP BC", "JP NZ,#h", "JP #h", "CALL NZ,#h", "PUSH BC", "ADD *h", "RST 00h",
    "RET Z", "RET", "JP Z,#h", "PFX_CB", "CALL Z,#h", "CALL #h", "ADC *h", "RST 08h",
    "RET NC", "POP DE", "JP NC,#h", "OUTA (*h)", "CALL NC,#h", "PUSH DE", "SUB *h", "RST 10h",
    "RET C", "EXX", "JP C,#h", "INA (*h)", "CALL C,#h", "PFX_DD", "SBC *h", "RST 18h",
    "RET PO", "POP HL", "JP PO,#h", "EX HL,(SP)", "CALL PO,#h", "PUSH HL", "AND *h", "RST 20h",
    "RET PE", "LD PC,HL", "JP PE,#h", "EX DE,HL", "CALL PE,#h", "PFX_ED", "XOR *h", "RST 28h",
    "RET P", "POP AF", "JP P,#h", "DI", "CALL P,#h", "PUSH AF", "OR *h", "RST 30h",
    "RET M", "LD SP,HL", "JP M,#h", "EI", "CALL M,#h", "PFX_FD", "CP *h", "RST 38h"
};

static const char *MnemonicsCB[256] =
{
    "RLC B", "RLC C", "RLC D", "RLC E", "RLC H", "RLC L", "RLC (HL)", "RLC A",
    "RRC B", "RRC C", "RRC D", "RRC E", "RRC H", "RRC L", "RRC (HL)", "RRC A",
    "RL B", "RL C", "RL D", "RL E", "RL H", "RL L", "RL (HL)", "RL A",
    "RR B", "RR C", "RR D", "RR E", "RR H", "RR L", "RR (HL)", "RR A",
    "SLA B", "SLA C", "SLA D", "SLA E", "SLA H", "SLA L", "SLA (HL)", "SLA A",
    "SRA B", "SRA C", "SRA D", "SRA E", "SRA H", "SRA L", "SRA (HL)", "SRA A",
    "SLL B", "SLL C", "SLL D", "SLL E", "SLL H", "SLL L", "SLL (HL)", "SLL A",
    "SRL B", "SRL C", "SRL D", "SRL E", "SRL H", "SRL L", "SRL (HL)", "SRL A",
    "BIT 0,B", "BIT 0,C", "BIT 0,D", "BIT 0,E", "BIT 0,H", "BIT 0,L", "BIT 0,(HL)", "BIT 0,A",
    "BIT 1,B", "BIT 1,C", "BIT 1,D", "BIT 1,E", "BIT 1,H", "BIT 1,L", "BIT 1,(HL)", "BIT 1,A",
    "BIT 2,B", "BIT 2,C", "BIT 2,D", "BIT 2,E", "BIT 2,H", "BIT 2,L", "BIT 2,(HL)", "BIT 2,A",
    "BIT 3,B", "BIT 3,C", "BIT 3,D", "BIT 3,E", "BIT 3,H", "BIT 3,L", "BIT 3,(HL)", "BIT 3,A",
    "BIT 4,B", "BIT 4,C", "BIT 4,D", "BIT 4,E", "BIT 4,H", "BIT 4,L", "BIT 4,(HL)", "BIT 4,A",
    "BIT 5,B", "BIT 5,C", "BIT 5,D", "BIT 5,E", "BIT 5,H", "BIT 5,L", "BIT 5,(HL)", "BIT 5,A",
    "BIT 6,B", "BIT 6,C", "BIT 6,D", "BIT 6,E", "BIT 6,H", "BIT 6,L", "BIT 6,(HL)", "BIT 6,A",
    "BIT 7,B", "BIT 7,C", "BIT 7,D", "BIT 7,E", "BIT 7,H", "BIT 7,L", "BIT 7,(HL)", "BIT 7,A",
    "RES 0,B", "RES 0,C", "RES 0,D", "RES 0,E", "RES 0,H", "RES 0,L", "RES 0,(HL)", "RES 0,A",
    "RES 1,B", "RES 1,C", "RES 1,D", "RES 1,E", "RES 1,H", "RES 1,L", "RES 1,(HL)", "RES 1,A",
    "RES 2,B", "RES 2,C", "RES 2,D", "RES 2,E", "RES 2,H", "RES 2,L", "RES 2,(HL)", "RES 2,A",
    "RES 3,B", "RES 3,C", "RES 3,D", "RES 3,E", "RES 3,H", "RES 3,L", "RES 3,(HL)", "RES 3,A",
    "RES 4,B", "RES 4,C", "RES 4,D", "RES 4,E", "RES 4,H", "RES 4,L", "RES 4,(HL)", "RES 4,A",
    "RES 5,B", "RES 5,C", "RES 5,D", "RES 5,E", "RES 5,H", "RES 5,L", "RES 5,(HL)", "RES 5,A",
    "RES 6,B", "RES 6,C", "RES 6,D", "RES 6,E", "RES 6,H", "RES 6,L", "RES 6,(HL)", "RES 6,A",
    "RES 7,B", "RES 7,C", "RES 7,D", "RES 7,E", "RES 7,H", "RES 7,L", "RES 7,(HL)", "RES 7,A",
    "SET 0,B", "SET 0,C", "SET 0,D", "SET 0,E", "SET 0,H", "SET 0,L", "SET 0,(HL)", "SET 0,A",
    "SET 1,B", "SET 1,C", "SET 1,D", "SET 1,E", "SET 1,H", "SET 1,L", "SET 1,(HL)", "SET 1,A",
    "SET 2,B", "SET 2,C", "SET 2,D", "SET 2,E", "SET 2,H", "SET 2,L", "SET 2,(HL)", "SET 2,A",
    "SET 3,B", "SET 3,C", "SET 3,D", "SET 3,E", "SET 3,H", "SET 3,L", "SET 3,(HL)", "SET 3,A",
    "SET 4,B", "SET 4,C", "SET 4,D", "SET 4,E", "SET 4,H", "SET 4,L", "SET 4,(HL)", "SET 4,A",
    "SET 5,B", "SET 5,C", "SET 5,D", "SET 5,E", "SET 5,H", "SET 5,L", "SET 5,(HL)", "SET 5,A",
    "SET 6,B", "SET 6,C", "SET 6,D", "SET 6,E", "SET 6,H", "SET 6,L", "SET 6,(HL)", "SET 6,A",
    "SET 7,B", "SET 7,C", "SET 7,D", "SET 7,E", "SET 7,H", "SET 7,L", "SET 7,(HL)", "SET 7,A"
};

static const char *MnemonicsED[256] =
{
    "DB EDh,00h", "DB EDh,01h", "DB EDh,02h", "DB EDh,03h",
    "DB EDh,04h", "DB EDh,05h", "DB EDh,06h", "DB EDh,07h",
    "DB EDh,08h", "DB EDh,09h", "DB EDh,0Ah", "DB EDh,0Bh",
    "DB EDh,0Ch", "DB EDh,0Dh", "DB EDh,0Eh", "DB EDh,0Fh",
    "DB EDh,10h", "DB EDh,11h", "DB EDh,12h", "DB EDh,13h",
    "DB EDh,14h", "DB EDh,15h", "DB EDh,16h", "DB EDh,17h",
    "DB EDh,18h", "DB EDh,19h", "DB EDh,1Ah", "DB EDh,1Bh",
    "DB EDh,1Ch", "DB EDh,1Dh", "DB EDh,1Eh", "DB EDh,1Fh",
    "DB EDh,20h", "DB EDh,21h", "DB EDh,22h", "DB EDh,23h",
    "DB EDh,24h", "DB EDh,25h", "DB EDh,26h", "DB EDh,27h",
    "DB EDh,28h", "DB EDh,29h", "DB EDh,2Ah", "DB EDh,2Bh",
    "DB EDh,2Ch", "DB EDh,2Dh", "DB EDh,2Eh", "DB EDh,2Fh",
    "DB EDh,30h", "DB EDh,31h", "DB EDh,32h", "DB EDh,33h",
    "DB EDh,34h", "DB EDh,35h", "DB EDh,36h", "DB EDh,37h",
    "DB EDh,38h", "DB EDh,39h", "DB EDh,3Ah", "DB EDh,3Bh",
    "DB EDh,3Ch", "DB EDh,3Dh", "DB EDh,3Eh", "DB EDh,3Fh",
    "IN B,(C)", "OUT (C),B", "SBC HL,BC", "LD (#h),BC",
    "NEG", "RETN", "IM 0", "LD I,A",
    "IN C,(C)", "OUT (C),C", "ADC HL,BC", "LD BC,(#h)",
    "DB EDh,4Ch", "RETI", "DB EDh,4Eh", "LD R,A",
    "IN D,(C)", "OUT (C),D", "SBC HL,DE", "LD (#h),DE",
    "DB EDh,54h", "DB EDh,55h", "IM 1", "LD A,I",
    "IN E,(C)", "OUT (C),E", "ADC HL,DE", "LD DE,(#h)",
    "DB EDh,5Ch", "DB EDh,5Dh", "IM 2", "LD A,R",
    "IN H,(C)", "OUT (C),H", "SBC HL,HL", "LD (#h),HL",
    "DB EDh,64h", "DB EDh,65h", "DB EDh,66h", "RRD",
    "IN L,(C)", "OUT (C),L", "ADC HL,HL", "LD HL,(#h)",
    "DB EDh,6Ch", "DB EDh,6Dh", "DB EDh,6Eh", "RLD",
    "IN F,(C)", "DB EDh,71h", "SBC HL,SP", "LD (#h),SP",
    "DB EDh,74h", "DB EDh,75h", "DB EDh,76h", "DB EDh,77h",
    "IN A,(C)", "OUT (C),A", "ADC HL,SP", "LD SP,(#h)",
    "DB EDh,7Ch", "DB EDh,7Dh", "DB EDh,7Eh", "DB EDh,7Fh",
    "DB EDh,80h", "DB EDh,81h", "DB EDh,82h", "DB EDh,83h",
    "DB EDh,84h", "DB EDh,85h", "DB EDh,86h", "DB EDh,87h",
    "DB EDh,88h", "DB EDh,89h", "DB EDh,8Ah", "DB EDh,8Bh",
    "DB EDh,8Ch", "DB EDh,8Dh", "DB EDh,8Eh", "DB EDh,8Fh",
    "DB EDh,90h", "DB EDh,91h", "DB EDh,92h", "DB EDh,93h",
    "DB EDh,94h", "DB EDh,95h", "DB EDh,96h", "DB EDh,97h",
    "DB EDh,98h", "DB EDh,99h", "DB EDh,9Ah", "DB EDh,9Bh",
    "DB EDh,9Ch", "DB EDh,9Dh", "DB EDh,9Eh", "DB EDh,9Fh",
    "LDI", "CPI", "INI", "OUTI",
    "DB EDh,A4h", "DB EDh,A5h", "DB EDh,A6h", "DB EDh,A7h",
    "LDD", "CPD", "IND", "OUTD",
    "DB EDh,ACh", "DB EDh,ADh", "DB EDh,AEh", "DB EDh,AFh",
    "LDIR", "CPIR", "INIR", "OTIR",
    "DB EDh,B4h", "DB EDh,B5h", "DB EDh,B6h", "DB EDh,B7h",
    "LDDR", "CPDR", "INDR", "OTDR",
    "DB EDh,BCh", "DB EDh,BDh", "DB EDh,BEh", "DB EDh,BFh",
    "DB EDh,C0h", "DB EDh,C1h", "DB EDh,C2h", "DB EDh,C3h",
    "DB EDh,C4h", "DB EDh,C5h", "DB EDh,C6h", "DB EDh,C7h",
    "DB EDh,C8h", "DB EDh,C9h", "DB EDh,CAh", "DB EDh,CBh",
    "DB EDh,CCh", "DB EDh,CDh", "DB EDh,CEh", "DB EDh,CFh",
    "DB EDh,D0h", "DB EDh,D1h", "DB EDh,D2h", "DB EDh,D3h",
    "DB EDh,D4h", "DB EDh,D5h", "DB EDh,D6h", "DB EDh,D7h",
    "DB EDh,D8h", "DB EDh,D9h", "DB EDh,DAh", "DB EDh,DBh",
    "DB EDh,DCh", "DB EDh,DDh", "DB EDh,DEh", "DB EDh,DFh",
    "DB EDh,E0h", "DB EDh,E1h", "DB EDh,E2h", "DB EDh,E3h",
    "DB EDh,E4h", "DB EDh,E5h", "DB EDh,E6h", "DB EDh,E7h",
    "DB EDh,E8h", "DB EDh,E9h", "DB EDh,EAh", "DB EDh,EBh",
    "DB EDh,ECh", "DB EDh,EDh", "DB EDh,EEh", "DB EDh,EFh",
    "DB EDh,F0h", "DB EDh,F1h", "DB EDh,F2h", "DB EDh,F3h",
    "DB EDh,F4h", "DB EDh,F5h", "DB EDh,F6h", "DB EDh,F7h",
    "DB EDh,F8h", "DB EDh,F9h", "DB EDh,FAh", "DB EDh,FBh",
    "DB EDh,FCh", "DB EDh,FDh", "DB EDh,FEh", "DB EDh,FFh"
};

static const char *MnemonicsXX[256] =
{
    "NOP", "LD BC,#h", "LD (BC),A", "INC BC", "INC B", "DEC B", "LD B,*h", "RLCA",
    "EX AF,AF'", "ADD I%,BC", "LD A,(BC)", "DEC BC", "INC C", "DEC C", "LD C,*h", "RRCA",
    "DJNZ @h", "LD DE,#h", "LD (DE),A", "INC DE", "INC D", "DEC D", "LD D,*h", "RLA",
    "JR @h", "ADD I%,DE", "LD A,(DE)", "DEC DE", "INC E", "DEC E", "LD E,*h", "RRA",
    "JR NZ,@h", "LD I%,#h", "LD (#h),I%", "INC I%", "INC I%h", "DEC I%h", "LD I%h,*h", "DAA",
    "JR Z,@h", "ADD I%,I%", "LD I%,(#h)", "DEC I%", "INC I%l", "DEC I%l", "LD I%l,*h", "CPL",
    "JR NC,@h", "LD SP,#h", "LD (#h),A", "INC SP", "INC (I%+^h)", "DEC (I%+^h)", "LD (I%+^h),*h", "SCF",
    "JR C,@h", "ADD I%,SP", "LD A,(#h)", "DEC SP", "INC A", "DEC A", "LD A,*h", "CCF",
    "LD B,B", "LD B,C", "LD B,D", "LD B,E", "LD B,I%h", "LD B,I%l", "LD B,(I%+^h)", "LD B,A",
    "LD C,B", "LD C,C", "LD C,D", "LD C,E", "LD C,I%h", "LD C,I%l", "LD C,(I%+^h)", "LD C,A",
    "LD D,B", "LD D,C", "LD D,D", "LD D,E", "LD D,I%h", "LD D,I%l", "LD D,(I%+^h)", "LD D,A",
    "LD E,B", "LD E,C", "LD E,D", "LD E,E", "LD E,I%h", "LD E,I%l", "LD E,(I%+^h)", "LD E,A",
    "LD I%h,B", "LD I%h,C", "LD I%h,D", "LD I%h,E", "LD I%h,I%h", "LD I%h,I%l", "LD H,(I%+^h)", "LD I%h,A",
    "LD I%l,B", "LD I%l,C", "LD I%l,D", "LD I%l,E", "LD I%l,I%h", "LD I%l,I%l", "LD L,(I%+^h)", "LD I%l,A",
    "LD (I%+^h),B", "LD (I%+^h),C", "LD (I%+^h),D", "LD (I%+^h),E", "LD (I%+^h),H", "LD (I%+^h),L", "HALT", "LD (I%+^h),A",
    "LD A,B", "LD A,C", "LD A,D", "LD A,E", "LD A,I%h", "LD A,I%l", "LD A,(I%+^h)", "LD A,A",
    "ADD B", "ADD C", "ADD D", "ADD E", "ADD I%h", "ADD I%l", "ADD (I%+^h)", "ADD A",
    "ADC B", "ADC C", "ADC D", "ADC E", "ADC I%h", "ADC I%l", "ADC (I%+^h)", "ADC,A",
    "SUB B", "SUB C", "SUB D", "SUB E", "SUB I%h", "SUB I%l", "SUB (I%+^h)", "SUB A",
    "SBC B", "SBC C", "SBC D", "SBC E", "SBC I%h", "SBC I%l", "SBC (I%+^h)", "SBC A",
    "AND B", "AND C", "AND D", "AND E", "AND I%h", "AND I%l", "AND (I%+^h)", "AND A",
    "XOR B", "XOR C", "XOR D", "XOR E", "XOR I%h", "XOR I%l", "XOR (I%+^h)", "XOR A",
    "OR B", "OR C", "OR D", "OR E", "OR I%h", "OR I%l", "OR (I%+^h)", "OR A",
    "CP B", "CP C", "CP D", "CP E", "CP I%h", "CP I%l", "CP (I%+^h)", "CP A",
    "RET NZ", "POP BC", "JP NZ,#h", "JP #h", "CALL NZ,#h", "PUSH BC", "ADD *h", "RST 00h",
    "RET Z", "RET", "JP Z,#h", "PFX_CB", "CALL Z,#h", "CALL #h", "ADC *h", "RST 08h",
    "RET NC", "POP DE", "JP NC,#h", "OUTA (*h)", "CALL NC,#h", "PUSH DE", "SUB *h", "RST 10h",
    "RET C", "EXX", "JP C,#h", "INA (*h)", "CALL C,#h", "PFX_DD", "SBC *h", "RST 18h",
    "RET PO", "POP I%", "JP PO,#h", "EX I%,(SP)", "CALL PO,#h", "PUSH I%", "AND *h", "RST 20h",
    "RET PE", "LD PC,I%", "JP PE,#h", "EX DE,I%", "CALL PE,#h", "PFX_ED", "XOR *h", "RST 28h",
    "RET P", "POP AF", "JP P,#h", "DI", "CALL P,#h", "PUSH AF", "OR *h", "RST 30h",
    "RET M", "LD SP,I%", "JP M,#h", "EI", "CALL M,#h", "PFX_FD", "CP *h", "RST 38h"
};

static const char *MnemonicsXCB[256] =
{
    "RLC B", "RLC C", "RLC D", "RLC E", "RLC H", "RLC L", "RLC (I%@h)", "RLC A",
    "RRC B", "RRC C", "RRC D", "RRC E", "RRC H", "RRC L", "RRC (I%@h)", "RRC A",
    "RL B", "RL C", "RL D", "RL E", "RL H", "RL L", "RL (I%@h)", "RL A",
    "RR B", "RR C", "RR D", "RR E", "RR H", "RR L", "RR (I%@h)", "RR A",
    "SLA B", "SLA C", "SLA D", "SLA E", "SLA H", "SLA L", "SLA (I%@h)", "SLA A",
    "SRA B", "SRA C", "SRA D", "SRA E", "SRA H", "SRA L", "SRA (I%@h)", "SRA A",
    "SLL B", "SLL C", "SLL D", "SLL E", "SLL H", "SLL L", "SLL (I%@h)", "SLL A",
    "SRL B", "SRL C", "SRL D", "SRL E", "SRL H", "SRL L", "SRL (I%@h)", "SRL A",
    "BIT 0,B", "BIT 0,C", "BIT 0,D", "BIT 0,E", "BIT 0,H", "BIT 0,L", "BIT 0,(I%@h)", "BIT 0,A",
    "BIT 1,B", "BIT 1,C", "BIT 1,D", "BIT 1,E", "BIT 1,H", "BIT 1,L", "BIT 1,(I%@h)", "BIT 1,A",
    "BIT 2,B", "BIT 2,C", "BIT 2,D", "BIT 2,E", "BIT 2,H", "BIT 2,L", "BIT 2,(I%@h)", "BIT 2,A",
    "BIT 3,B", "BIT 3,C", "BIT 3,D", "BIT 3,E", "BIT 3,H", "BIT 3,L", "BIT 3,(I%@h)", "BIT 3,A",
    "BIT 4,B", "BIT 4,C", "BIT 4,D", "BIT 4,E", "BIT 4,H", "BIT 4,L", "BIT 4,(I%@h)", "BIT 4,A",
    "BIT 5,B", "BIT 5,C", "BIT 5,D", "BIT 5,E", "BIT 5,H", "BIT 5,L", "BIT 5,(I%@h)", "BIT 5,A",
    "BIT 6,B", "BIT 6,C", "BIT 6,D", "BIT 6,E", "BIT 6,H", "BIT 6,L", "BIT 6,(I%@h)", "BIT 6,A",
    "BIT 7,B", "BIT 7,C", "BIT 7,D", "BIT 7,E", "BIT 7,H", "BIT 7,L", "BIT 7,(I%@h)", "BIT 7,A",
    "RES 0,B", "RES 0,C", "RES 0,D", "RES 0,E", "RES 0,H", "RES 0,L", "RES 0,(I%@h)", "RES 0,A",
    "RES 1,B", "RES 1,C", "RES 1,D", "RES 1,E", "RES 1,H", "RES 1,L", "RES 1,(I%@h)", "RES 1,A",
    "RES 2,B", "RES 2,C", "RES 2,D", "RES 2,E", "RES 2,H", "RES 2,L", "RES 2,(I%@h)", "RES 2,A",
    "RES 3,B", "RES 3,C", "RES 3,D", "RES 3,E", "RES 3,H", "RES 3,L", "RES 3,(I%@h)", "RES 3,A",
    "RES 4,B", "RES 4,C", "RES 4,D", "RES 4,E", "RES 4,H", "RES 4,L", "RES 4,(I%@h)", "RES 4,A",
    "RES 5,B", "RES 5,C", "RES 5,D", "RES 5,E", "RES 5,H", "RES 5,L", "RES 5,(I%@h)", "RES 5,A",
    "RES 6,B", "RES 6,C", "RES 6,D", "RES 6,E", "RES 6,H", "RES 6,L", "RES 6,(I%@h)", "RES 6,A",
    "RES 7,B", "RES 7,C", "RES 7,D", "RES 7,E", "RES 7,H", "RES 7,L", "RES 7,(I%@h)", "RES 7,A",
    "SET 0,B", "SET 0,C", "SET 0,D", "SET 0,E", "SET 0,H", "SET 0,L", "SET 0,(I%@h)", "SET 0,A",
    "SET 1,B", "SET 1,C", "SET 1,D", "SET 1,E", "SET 1,H", "SET 1,L", "SET 1,(I%@h)", "SET 1,A",
    "SET 2,B", "SET 2,C", "SET 2,D", "SET 2,E", "SET 2,H", "SET 2,L", "SET 2,(I%@h)", "SET 2,A",
    "SET 3,B", "SET 3,C", "SET 3,D", "SET 3,E", "SET 3,H", "SET 3,L", "SET 3,(I%@h)", "SET 3,A",
    "SET 4,B", "SET 4,C", "SET 4,D", "SET 4,E", "SET 4,H", "SET 4,L", "SET 4,(I%@h)", "SET 4,A",
    "SET 5,B", "SET 5,C", "SET 5,D", "SET 5,E", "SET 5,H", "SET 5,L", "SET 5,(I%@h)", "SET 5,A",
    "SET 6,B", "SET 6,C", "SET 6,D", "SET 6,E", "SET 6,H", "SET 6,L", "SET 6,(I%@h)", "SET 6,A",
    "SET 7,B", "SET 7,C", "SET 7,D", "SET 7,E", "SET 7,H", "SET 7,L", "SET 7,(I%@h)", "SET 7,A"
};

static const char *CPMCalls[41] =
{
    "System Reset", "Console Input", "Console Output", "Reader Input", "Punch Output", "List Output", "Direct I/O", "Get IOByte",
    "Set IOByte", "Print String", "Read Buffered", "Console Status", "Get Version", "Reset Disk", "Select Disk", "Open File",
    "Close File", "Search First", "Search Next", "Delete File", "Read Sequential", "Write Sequential", "Make File", "Rename File",
    "Get Login Vector", "Get Current Disk", "Set DMA Address", "Get Alloc", "Write Protect Disk", "Get R/O Vector", "Set File Attr", "Get Disk Params",
    "Get/Set User", "Read Random", "Write Random", "Get File Size", "Set Random Record", "Reset Drive", "N/A", "N/A", "Write Random 0 fill"
};

#endif

/* Memory management    */
#define GET_BYTE(a) get_byte(cpu, a)
#define PUT_BYTE(a, v) put_byte(cpu, a, v)
#define GET_WORD(a) get_word(cpu, a)
#define PUT_WORD(a, v) put_word(cpu, a, v)

static uint8_t get_byte(z80 *cpu, register uint32_t Addr) {
    return _RamRead(Addr & ADDRMASK);
}

static void put_byte(z80 *cpu, register uint32_t Addr, register uint32_t Value) {
    _RamWrite(Addr & ADDRMASK, Value);
}

static uint16_t get_word(z80 *cpu, register uint32_t a) {
    return GET_BYTE(a) | (GET_BYTE(a + 1) << 8);
}

static void put_word(z80 *cpu, register uint32_t Addr, register uint32_t Value) {
    _RamWrite(Addr, Value);
    _RamWrite(++Addr, Value >> 8);
}

#define RAM_MM(a)   GET_BYTE(a--)
#define RAM_PP(a)   GET_BYTE(a++)

#define PUT_BYTE_PP(a,v) PUT_BYTE(a++, v)
#define PUT_BYTE_MM(a,v) PUT_BYTE(a--, v)
#define MM_PUT_BYTE(a,v) PUT_BYTE(--a, v)

#define PUSH(x) do {            \
    MM_PUT_BYTE(SP, (x) >> 8);  \
    MM_PUT_BYTE(SP, x);         \
} while (0)

/*  Macros for the IN/OUT instructions INI/INIR/IND/INDR/OUTI/OTIR/OUTD/OTDR

Pre condition
temp == value of register B at entry of the instruction
acu == value of transferred byte (IN or OUT)
Post condition
F is set correctly

Use INOUTFLAGS_ZERO(x) for INIR/INDR/OTIR/OTDR where
x == (C + 1) & 0xff for INIR
x == L              for OTIR and OTDR
x == (C - 1) & 0xff for INDR
Use INOUTFLAGS_NONZERO(x) for INI/IND/OUTI/OUTD where
x == (C + 1) & 0xff for INI
x == L              for OUTI and OUTD
x == (C - 1) & 0xff for IND
*/
#define INOUTFLAGS(syxz, x)                                             \
    AF = (AF & 0xff00) | (syxz) |               /* SF, YF, XF, ZF   */  \
        ((acu & 0x80) >> 6) |                           /* NF       */  \
        ((acu + (x)) > 0xff ? (FLAG_C | FLAG_H) : 0) |  /* CF, HF   */  \
        parityTable[((acu + (x)) & 7) ^ temp]           /* PF       */

#define INOUTFLAGS_ZERO(x)      INOUTFLAGS(FLAG_Z, x)
#define INOUTFLAGS_NONZERO(x)                                           \
    INOUTFLAGS((HIGH_REGISTER(BC) & 0xa8) | ((HIGH_REGISTER(BC) == 0) << 6), x)

z80 *z80_new() {
    _console_init();
    z80 *cpu = calloc(1, sizeof(z80));
    z80_reset(cpu);
    return cpu;
}

void z80_set_intercept(z80 *cpu, void *intercept_ctx,
        void (*intercept)(void *))
{
    cpu->intercept_ctx = intercept_ctx;
    cpu->intercept = intercept;
}

void z80_reset(z80 *cpu) {
    PC = 0;
    IFF = 0;
    IR = 0;
    cpu->status = 0;
    cpu->debug = 0;
    cpu->brk = -1;
    cpu->step = -1;
#if defined(DEBUG) || defined(iDEBUG)
    cpu->watch = -1;
#endif
}

#ifdef DEBUG
void watchprint(z80 *cpu, uint16_t pos) {
    uint8_t I, J;
    _puts("\r\n");
    _puts("  Watch : "); _puthex16(cpu->watch);
    _puts(" = "); _puthex8(_RamRead(cpu->watch)); _putcon(':'); _puthex8(_RamRead(cpu->watch + 1));
    _puts(" / ");
    for (J = 0, I = _RamRead(cpu->watch); J < 8; ++J, I <<= 1) _putcon(I & 0x80 ? '1' : '0');
    _putcon(':');
    for (J = 0, I = _RamRead(cpu->watch + 1); J < 8; ++J, I <<= 1) _putcon(I & 0x80 ? '1' : '0');
}

void memdump(z80 *cpu, uint16_t pos) {
    uint16_t h = pos;
    uint16_t c = pos;
    uint8_t l, i;
    uint8_t ch = pos & 0xff;

    _puts("       ");
    for (i = 0; i < 16; ++i) {
        _puthex8(ch++ & 0x0f);
        _puts(" ");
    }
    _puts("\r\n");
    _puts("       ");
    for (i = 0; i < 16; ++i)
        _puts("---");
    _puts("\r\n");
    for (l = 0; l < 16; ++l) {
        _puthex16(h);
        _puts(" : ");
        for (i = 0; i < 16; ++i) {
            _puthex8(_RamRead(h++));
            _puts(" ");
        }
        for (i = 0; i < 16; ++i) {
            ch = _RamRead(c++);
            _putcon(ch > 31 && ch < 127 ? ch : '.');
        }
        _puts("\r\n");
    }
}

uint8_t disasm(z80 *cpu, uint16_t pos) {
    const char *txt;
    char jr;
    uint8_t ch = _RamRead(pos);
    uint8_t count = 1;
    uint8_t C;

    switch (ch) {
    case 0xCB: ++pos; txt = MnemonicsCB[_RamRead(pos++)]; count++; break;
    case 0xED: ++pos; txt = MnemonicsED[_RamRead(pos++)]; count++; break;
    case 0xDD: ++pos; C = 'X';
        if (_RamRead(pos) != 0xCB) {
            txt = MnemonicsXX[_RamRead(pos++)]; ++count;
        } else {
            ++pos; txt = MnemonicsXCB[_RamRead(pos++)]; count += 2;
        }
        break;
    case 0xFD: ++pos; C = 'Y';
        if (_RamRead(pos) != 0xCB) {
            txt = MnemonicsXX[_RamRead(pos++)]; ++count;
        } else {
            ++pos; txt = MnemonicsXCB[_RamRead(pos++)]; count += 2;
        }
        break;
    default:   txt = Mnemonics[_RamRead(pos++)];
    }
    while (*txt != 0) {
        switch (*txt) {
        case '*':
            txt += 2;
            ++count;
            _puthex8(_RamRead(pos++));
            break;
        case '^':
            txt += 2;
            ++count;
            _puthex8(_RamRead(pos++));
            break;
        case '#':
            txt += 2;
            count += 2;
            _puthex8(_RamRead(pos + 1));
            _puthex8(_RamRead(pos));
            break;
        case '@':
            txt += 2;
            ++count;
            jr = _RamRead(pos++);
            _puthex16(pos + jr);
            break;
        case '%':
            _putch(C);
            ++txt;
            break;
        default:
            _putch(*txt);
            ++txt;
        }
    }

    return(count);
}

void z80_debug(z80 *cpu) {
    uint8_t ch = 0;
    uint16_t pos, l;
    static const char Flags[9] = "SZ5H3PNC";
    uint8_t J, I;
    unsigned int bpoint;
    bool loop = true;

    while (loop) {
        pos = PC;
        _puts("\r\n");
        _puts("BC:");  _puthex16(BC);
        _puts(" DE:"); _puthex16(DE);
        _puts(" HL:"); _puthex16(HL);
        _puts(" AF:"); _puthex16(AF);
        _puts(" : [");
        for (J = 0, I = LOW_REGISTER(AF); J < 8; ++J, I <<= 1) _putcon(I & 0x80 ? Flags[J] : '.');
        _puts("]\r\n");
        _puts("IX:");  _puthex16(IX);
        _puts(" IY:"); _puthex16(IY);
        _puts(" SP:"); _puthex16(SP);
        _puts(" PC:"); _puthex16(PC);
        _puts(" : ");

        disasm(cpu, pos);

        if (PC == 0x0005) {
            if (LOW_REGISTER(BC) > 40) {
                _puts(" (Unknown)");
            } else {
                _puts(" (");
                _puts(CPMCalls[LOW_REGISTER(BC)]);
                _puts(")");
            }
        }

        if (cpu->watch != -1) {
            watchprint(cpu, cpu->watch);
        }

        _puts("\r\n");
        _puts("Command|? : ");
        ch = _getch();
        if (ch > 21 && ch < 127)
            _putch(ch);
        switch(ch) {
        case 't':
            loop = false;
            break;
        case 'c':
            loop = false;
            _puts("\r\n");
            cpu->debug = 0;
            break;
        case 'b':
            _puts("\r\n"); memdump(cpu, BC); break;
        case 'd':
            _puts("\r\n"); memdump(cpu, DE); break;
        case 'h':
            _puts("\r\n"); memdump(cpu, HL); break;
        case 'p':
            _puts("\r\n"); memdump(cpu, PC & 0xFF00); break;
        case 's':
            _puts("\r\n"); memdump(cpu, SP & 0xFF00); break;
        case 'x':
            _puts("\r\n"); memdump(cpu, IX & 0xFF00); break;
        case 'y':
            _puts("\r\n"); memdump(cpu, IY & 0xFF00); break;
/*
        case 'a':
            _puts("\r\n"); memdump(dmaAddr); break;
*/
            case 'l':
            _puts("\r\n");
            I = 16;
            l = pos;
            while (I > 0) {
                _puthex16(l);
                _puts(" : ");
                l += disasm(cpu, l);
                _puts("\r\n");
                --I;
            }
            break;
        case 'B':
            _puts(" Addr: ");
            scanf("%04x", &bpoint);
            cpu->brk = bpoint;
            _puts("Breakpoint set to ");
            _puthex16(cpu->brk);
            _puts("\r\n");
            break;
        case 'C':
            cpu->brk = -1;
            _puts(" Breakpoint cleared\r\n");
            break;
        case 'D':
            _puts(" Addr: ");
            scanf("%04x", &bpoint);
            memdump(cpu, bpoint);
            break;
        case 'L':
            _puts(" Addr: ");
            scanf("%04x", &bpoint);
            I = 16;
            l = bpoint;
            while (I > 0) {
                _puthex16(l);
                _puts(" : ");
                l += disasm(cpu, l);
                _puts("\r\n");
                --I;
            }
            break;
        case 'T':
            loop = false;
            cpu->step = pos + 3; // This only works correctly with CALL
                            // If the called function messes with the stack, this will fail as well.
            cpu->debug = 0;
            break;
        case 'W':
            _puts(" Addr: ");
            scanf("%04x", &bpoint);
            cpu->watch = bpoint;
            _puts("Watch set to ");
            _puthex16(cpu->watch);
            _puts("\r\n");
            break;
        case 'q':
            _puts("\r\n");
            loop = false;
            cpu->status = 1;
            break;
        case '?':
            _puts("\r\n");
            _puts("Lowercase commands:\r\n");
            _puts("  t - traces to the next instruction\r\n");
            _puts("  c - Continue execution\r\n");
            _puts("  b - Dumps memory pointed by (BC)\r\n");
            _puts("  d - Dumps memory pointed by (DE)\r\n");
            _puts("  h - Dumps memory pointed by (HL)\r\n");
            _puts("  p - Dumps the page (PC) points to\r\n");
            _puts("  s - Dumps the page (SP) points to\r\n");
            _puts("  x - Dumps the page (IX) points to\r\n");
            _puts("  y - Dumps the page (IY) points to\r\n");
//          _puts("  a - Dumps memory pointed by dmaAddr\r\n");
            _puts("  l - Disassembles from current PC\r\n");
            _puts("  q - Quit simulation\r\n");
            _puts("Uppercase commands:\r\n");
            _puts("  B - Sets breakpoint at address\r\n");
            _puts("  C - Clears breakpoint\r\n");
            _puts("  D - Dumps memory at address\r\n");
            _puts("  L - Disassembles at address\r\n");
            _puts("  T - Steps over a call\r\n");
            _puts("  W - Sets a byte/word watch\r\n");
            break;
        default:
            _puts(" ???\r\n");
        }
    }
}
#endif

void z80_run(z80 *cpu) {
    register uint32_t temp = 0;
    register uint32_t acu;
    register uint32_t sum;
    register uint32_t cbits;
    register uint32_t op;
    register uint32_t adr;

    /* main instruction fetch/decode loop */
    while (!cpu->status) {  /* loop until status != 0 */

        if (cpu->intercept) {
            cpu->intercept(cpu->intercept_ctx);
            if (cpu->status)
                break;
        }
#ifdef DEBUG
        if (PC == cpu->brk) {
            _puts(":BREAK at ");
            _puthex16(cpu->brk);
            _puts(":");
            cpu->debug = 1;
        }
        if (PC == cpu->step) {
            cpu->debug = 1;
            cpu->step = -1;
        }
        if (cpu->debug) {
            z80_debug(cpu);
            if (cpu->status)
                break;
        }
#endif

        PCX = PC;

#ifdef iDEBUG
        iLogFile = fopen("iDump.log", "a");
        switch (RAM[PCX & 0xffff]) {
        case 0xCB: iLogTxt = MnemonicsCB[RAM[PCX & 0xffff + 1]]; break;
        case 0xED: iLogTxt = MnemonicsED[RAM[PCX & 0xffff + 1]]; break;
        case 0xDD:
        case 0xFD:
            if (RAM[PCX & 0xffff] == 0xCB) {
                iLogTxt = MnemonicsXCB[RAM[PCX & 0xffff + 1]]; break;
            } else {
                iLogTxt = MnemonicsXX[RAM[PCX & 0xffff + 1]]; break;
            }
        default: iLogTxt = Mnemonics[RAM[PCX & 0xffff]];
        }
        sprintf(iLogBuffer, "0x%04x : 0x%02x = %s\n", PCX, RAM[PCX & 0xffff], iLogTxt);
        fputs(iLogBuffer, iLogFile);
        fclose(iLogFile);
#endif

        switch (RAM_PP(PC)) {

        case 0x00:      /* NOP */
            break;

        case 0x01:      /* LD BC,nnnn */
            BC = GET_WORD(PC);
            PC += 2;
            break;

        case 0x02:      /* LD (BC),A */
            PUT_BYTE(BC, HIGH_REGISTER(AF));
            break;

        case 0x03:      /* INC BC */
            ++BC;
            break;

        case 0x04:      /* INC B */
            BC += 0x100;
            temp = HIGH_REGISTER(BC);
            AF = (AF & ~0xfe) | incTable[temp] | SET_PV2(0x80); /* SET_PV2 uses temp */
            break;

        case 0x05:      /* DEC B */
            BC -= 0x100;
            temp = HIGH_REGISTER(BC);
            AF = (AF & ~0xfe) | decTable[temp] | SET_PV2(0x7f); /* SET_PV2 uses temp */
            break;

        case 0x06:      /* LD B,nn */
            SET_HIGH_REGISTER(BC, RAM_PP(PC));
            break;

        case 0x07:      /* RLCA */
            AF = ((AF >> 7) & 0x0128) | ((AF << 1) & ~0x1ff) |
                (AF & 0xc4) | ((AF >> 15) & 1);
            break;

        case 0x08:      /* EX AF,AF' */
            temp = AF;
            AF = AF1;
            AF1 = temp;
            break;

        case 0x09:      /* ADD HL,BC */
            HL &= ADDRMASK;
            BC &= ADDRMASK;
            sum = HL + BC;
            AF = (AF & ~0x3b) | ((sum >> 8) & 0x28) | cbitsTable[(HL ^ BC ^ sum) >> 8];
            HL = sum;
            break;

        case 0x0a:      /* LD A,(BC) */
            SET_HIGH_REGISTER(AF, GET_BYTE(BC));
            break;

        case 0x0b:      /* DEC BC */
            --BC;
            break;

        case 0x0c:      /* INC C */
            temp = LOW_REGISTER(BC) + 1;
            SET_LOW_REGISTER(BC, temp);
            AF = (AF & ~0xfe) | incTable[temp] | SET_PV2(0x80);
            break;

        case 0x0d:      /* DEC C */
            temp = LOW_REGISTER(BC) - 1;
            SET_LOW_REGISTER(BC, temp);
            AF = (AF & ~0xfe) | decTable[temp & 0xff] | SET_PV2(0x7f);
            break;

        case 0x0e:      /* LD C,nn */
            SET_LOW_REGISTER(BC, RAM_PP(PC));
            break;

        case 0x0f:      /* RRCA */
            AF = (AF & 0xc4) | rrcaTable[HIGH_REGISTER(AF)];
            break;

        case 0x10:      /* DJNZ dd */
            if ((BC -= 0x100) & 0xff00)
                PC += (int8_t)GET_BYTE(PC) + 1;
            else
                ++PC;
            break;

        case 0x11:      /* LD DE,nnnn */
            DE = GET_WORD(PC);
            PC += 2;
            break;

        case 0x12:      /* LD (DE),A */
            PUT_BYTE(DE, HIGH_REGISTER(AF));
            break;

        case 0x13:      /* INC DE */
            ++DE;
            break;

        case 0x14:      /* INC D */
            DE += 0x100;
            temp = HIGH_REGISTER(DE);
            AF = (AF & ~0xfe) | incTable[temp] | SET_PV2(0x80); /* SET_PV2 uses temp */
            break;

        case 0x15:      /* DEC D */
            DE -= 0x100;
            temp = HIGH_REGISTER(DE);
            AF = (AF & ~0xfe) | decTable[temp] | SET_PV2(0x7f); /* SET_PV2 uses temp */
            break;

        case 0x16:      /* LD D,nn */
            SET_HIGH_REGISTER(DE, RAM_PP(PC));
            break;

        case 0x17:      /* RLA */
            AF = ((AF << 8) & 0x0100) | ((AF >> 7) & 0x28) | ((AF << 1) & ~0x01ff) |
                (AF & 0xc4) | ((AF >> 15) & 1);
            break;

        case 0x18:      /* JR dd */
            PC += (int8_t)GET_BYTE(PC) + 1;
            break;

        case 0x19:      /* ADD HL,DE */
            HL &= ADDRMASK;
            DE &= ADDRMASK;
            sum = HL + DE;
            AF = (AF & ~0x3b) | ((sum >> 8) & 0x28) | cbitsTable[(HL ^ DE ^ sum) >> 8];
            HL = sum;
            break;

        case 0x1a:      /* LD A,(DE) */
            SET_HIGH_REGISTER(AF, GET_BYTE(DE));
            break;

        case 0x1b:      /* DEC DE */
            --DE;
            break;

        case 0x1c:      /* INC E */
            temp = LOW_REGISTER(DE) + 1;
            SET_LOW_REGISTER(DE, temp);
            AF = (AF & ~0xfe) | incTable[temp] | SET_PV2(0x80);
            break;

        case 0x1d:      /* DEC E */
            temp = LOW_REGISTER(DE) - 1;
            SET_LOW_REGISTER(DE, temp);
            AF = (AF & ~0xfe) | decTable[temp & 0xff] | SET_PV2(0x7f);
            break;

        case 0x1e:      /* LD E,nn */
            SET_LOW_REGISTER(DE, RAM_PP(PC));
            break;

        case 0x1f:      /* RRA */
            AF = ((AF & 1) << 15) | (AF & 0xc4) | rraTable[HIGH_REGISTER(AF)];
            break;

        case 0x20:      /* JR NZ,dd */
            if (TSTFLAG(Z))
                ++PC;
            else
                PC += (int8_t)GET_BYTE(PC) + 1;
            break;

        case 0x21:      /* LD HL,nnnn */
            HL = GET_WORD(PC);
            PC += 2;
            break;

        case 0x22:      /* LD (nnnn),HL */
            temp = GET_WORD(PC);
            PUT_WORD(temp, HL);
            PC += 2;
            break;

        case 0x23:      /* INC HL */
            ++HL;
            break;

        case 0x24:      /* INC H */
            HL += 0x100;
            temp = HIGH_REGISTER(HL);
            AF = (AF & ~0xfe) | incTable[temp] | SET_PV2(0x80); /* SET_PV2 uses temp */
            break;

        case 0x25:      /* DEC H */
            HL -= 0x100;
            temp = HIGH_REGISTER(HL);
            AF = (AF & ~0xfe) | decTable[temp] | SET_PV2(0x7f); /* SET_PV2 uses temp */
            break;

        case 0x26:      /* LD H,nn */
            SET_HIGH_REGISTER(HL, RAM_PP(PC));
            break;

        case 0x27:      /* DAA */
            acu = HIGH_REGISTER(AF);
            temp = LOW_DIGIT(acu);
            cbits = TSTFLAG(C);
            if (TSTFLAG(N)) {   /* last operation was a subtract */
                int hd = cbits || acu > 0x99;
                if (TSTFLAG(H) || (temp > 9)) { /* adjust low digit */
                    if (temp > 5)
                        SETFLAG(H, 0);
                    acu -= 6;
                    acu &= 0xff;
                }
                if (hd)
                    acu -= 0x160;   /* adjust high digit */
            } else {          /* last operation was an add */
                if (TSTFLAG(H) || (temp > 9)) { /* adjust low digit */
                    SETFLAG(H, (temp > 9));
                    acu += 6;
                }
                if (cbits || ((acu & 0x1f0) > 0x90))
                    acu += 0x60;   /* adjust high digit */
            }
            AF = (AF & 0x12) | rrdrldTable[acu & 0xff] | ((acu >> 8) & 1) | cbits;
            break;

        case 0x28:      /* JR Z,dd */
            if (TSTFLAG(Z))
                PC += (int8_t)GET_BYTE(PC) + 1;
            else
                ++PC;
            break;

        case 0x29:      /* ADD HL,HL */
            HL &= ADDRMASK;
            sum = HL + HL;
            AF = (AF & ~0x3b) | cbitsDup16Table[sum >> 8];
            HL = sum;
            break;

        case 0x2a:      /* LD HL,(nnnn) */
            temp = GET_WORD(PC);
            HL = GET_WORD(temp);
            PC += 2;
            break;

        case 0x2b:      /* DEC HL */
            --HL;
            break;

        case 0x2c:      /* INC L */
            temp = LOW_REGISTER(HL) + 1;
            SET_LOW_REGISTER(HL, temp);
            AF = (AF & ~0xfe) | incTable[temp] | SET_PV2(0x80);
            break;

        case 0x2d:      /* DEC L */
            temp = LOW_REGISTER(HL) - 1;
            SET_LOW_REGISTER(HL, temp);
            AF = (AF & ~0xfe) | decTable[temp & 0xff] | SET_PV2(0x7f);
            break;

        case 0x2e:      /* LD L,nn */
            SET_LOW_REGISTER(HL, RAM_PP(PC));
            break;

        case 0x2f:      /* CPL */
            AF = (~AF & ~0xff) | (AF & 0xc5) | ((~AF >> 8) & 0x28) | 0x12;
            break;

        case 0x30:      /* JR NC,dd */
            if (TSTFLAG(C))
                ++PC;
            else
                PC += (int8_t)GET_BYTE(PC) + 1;
            break;

        case 0x31:      /* LD SP,nnnn */
            SP = GET_WORD(PC);
            PC += 2;
            break;

        case 0x32:      /* LD (nnnn),A */
            temp = GET_WORD(PC);
            PUT_BYTE(temp, HIGH_REGISTER(AF));
            PC += 2;
            break;

        case 0x33:      /* INC SP */
            ++SP;
            break;

        case 0x34:      /* INC (HL) */
            temp = GET_BYTE(HL) + 1;
            PUT_BYTE(HL, temp);
            AF = (AF & ~0xfe) | incTable[temp] | SET_PV2(0x80);
            break;

        case 0x35:      /* DEC (HL) */
            temp = GET_BYTE(HL) - 1;
            PUT_BYTE(HL, temp);
            AF = (AF & ~0xfe) | decTable[temp & 0xff] | SET_PV2(0x7f);
            break;

        case 0x36:      /* LD (HL),nn */
            PUT_BYTE(HL, RAM_PP(PC));
            break;

        case 0x37:      /* SCF */
            AF = (AF & ~0x3b) | ((AF >> 8) & 0x28) | 1;
            break;

        case 0x38:      /* JR C,dd */
            if (TSTFLAG(C))
                PC += (int8_t)GET_BYTE(PC) + 1;
            else
                ++PC;
            break;

        case 0x39:      /* ADD HL,SP */
            HL &= ADDRMASK;
            SP &= ADDRMASK;
            sum = HL + SP;
            AF = (AF & ~0x3b) | ((sum >> 8) & 0x28) | cbitsTable[(HL ^ SP ^ sum) >> 8];
            HL = sum;
            break;

        case 0x3a:      /* LD A,(nnnn) */
            temp = GET_WORD(PC);
            SET_HIGH_REGISTER(AF, GET_BYTE(temp));
            PC += 2;
            break;

        case 0x3b:      /* DEC SP */
            --SP;
            break;

        case 0x3c:      /* INC A */
            AF += 0x100;
            temp = HIGH_REGISTER(AF);
            AF = (AF & ~0xfe) | incTable[temp] | SET_PV2(0x80); /* SET_PV2 uses temp */
            break;

        case 0x3d:      /* DEC A */
            AF -= 0x100;
            temp = HIGH_REGISTER(AF);
            AF = (AF & ~0xfe) | decTable[temp] | SET_PV2(0x7f); /* SET_PV2 uses temp */
            break;

        case 0x3e:      /* LD A,nn */
            SET_HIGH_REGISTER(AF, RAM_PP(PC));
            break;

        case 0x3f:      /* CCF */
            AF = (AF & ~0x3b) | ((AF >> 8) & 0x28) | ((AF & 1) << 4) | (~AF & 1);
            break;

        case 0x40:      /* LD B,B */
            break;

        case 0x41:      /* LD B,C */
            BC = (BC & 0xff) | ((BC & 0xff) << 8);
            break;

        case 0x42:      /* LD B,D */
            BC = (BC & 0xff) | (DE & ~0xff);
            break;

        case 0x43:      /* LD B,E */
            BC = (BC & 0xff) | ((DE & 0xff) << 8);
            break;

        case 0x44:      /* LD B,H */
            BC = (BC & 0xff) | (HL & ~0xff);
            break;

        case 0x45:      /* LD B,L */
            BC = (BC & 0xff) | ((HL & 0xff) << 8);
            break;

        case 0x46:      /* LD B,(HL) */
            SET_HIGH_REGISTER(BC, GET_BYTE(HL));
            break;

        case 0x47:      /* LD B,A */
            BC = (BC & 0xff) | (AF & ~0xff);
            break;

        case 0x48:      /* LD C,B */
            BC = (BC & ~0xff) | ((BC >> 8) & 0xff);
            break;

        case 0x49:      /* LD C,C */
            break;

        case 0x4a:      /* LD C,D */
            BC = (BC & ~0xff) | ((DE >> 8) & 0xff);
            break;

        case 0x4b:      /* LD C,E */
            BC = (BC & ~0xff) | (DE & 0xff);
            break;

        case 0x4c:      /* LD C,H */
            BC = (BC & ~0xff) | ((HL >> 8) & 0xff);
            break;

        case 0x4d:      /* LD C,L */
            BC = (BC & ~0xff) | (HL & 0xff);
            break;

        case 0x4e:      /* LD C,(HL) */
            SET_LOW_REGISTER(BC, GET_BYTE(HL));
            break;

        case 0x4f:      /* LD C,A */
            BC = (BC & ~0xff) | ((AF >> 8) & 0xff);
            break;

        case 0x50:      /* LD D,B */
            DE = (DE & 0xff) | (BC & ~0xff);
            break;

        case 0x51:      /* LD D,C */
            DE = (DE & 0xff) | ((BC & 0xff) << 8);
            break;

        case 0x52:      /* LD D,D */
            break;

        case 0x53:      /* LD D,E */
            DE = (DE & 0xff) | ((DE & 0xff) << 8);
            break;

        case 0x54:      /* LD D,H */
            DE = (DE & 0xff) | (HL & ~0xff);
            break;

        case 0x55:      /* LD D,L */
            DE = (DE & 0xff) | ((HL & 0xff) << 8);
            break;

        case 0x56:      /* LD D,(HL) */
            SET_HIGH_REGISTER(DE, GET_BYTE(HL));
            break;

        case 0x57:      /* LD D,A */
            DE = (DE & 0xff) | (AF & ~0xff);
            break;

        case 0x58:      /* LD E,B */
            DE = (DE & ~0xff) | ((BC >> 8) & 0xff);
            break;

        case 0x59:      /* LD E,C */
            DE = (DE & ~0xff) | (BC & 0xff);
            break;

        case 0x5a:      /* LD E,D */
            DE = (DE & ~0xff) | ((DE >> 8) & 0xff);
            break;

        case 0x5b:      /* LD E,E */
            break;

        case 0x5c:      /* LD E,H */
            DE = (DE & ~0xff) | ((HL >> 8) & 0xff);
            break;

        case 0x5d:      /* LD E,L */
            DE = (DE & ~0xff) | (HL & 0xff);
            break;

        case 0x5e:      /* LD E,(HL) */
            SET_LOW_REGISTER(DE, GET_BYTE(HL));
            break;

        case 0x5f:      /* LD E,A */
            DE = (DE & ~0xff) | ((AF >> 8) & 0xff);
            break;

        case 0x60:      /* LD H,B */
            HL = (HL & 0xff) | (BC & ~0xff);
            break;

        case 0x61:      /* LD H,C */
            HL = (HL & 0xff) | ((BC & 0xff) << 8);
            break;

        case 0x62:      /* LD H,D */
            HL = (HL & 0xff) | (DE & ~0xff);
            break;

        case 0x63:      /* LD H,E */
            HL = (HL & 0xff) | ((DE & 0xff) << 8);
            break;

        case 0x64:      /* LD H,H */
            break;

        case 0x65:      /* LD H,L */
            HL = (HL & 0xff) | ((HL & 0xff) << 8);
            break;

        case 0x66:      /* LD H,(HL) */
            SET_HIGH_REGISTER(HL, GET_BYTE(HL));
            break;

        case 0x67:      /* LD H,A */
            HL = (HL & 0xff) | (AF & ~0xff);
            break;

        case 0x68:      /* LD L,B */
            HL = (HL & ~0xff) | ((BC >> 8) & 0xff);
            break;

        case 0x69:      /* LD L,C */
            HL = (HL & ~0xff) | (BC & 0xff);
            break;

        case 0x6a:      /* LD L,D */
            HL = (HL & ~0xff) | ((DE >> 8) & 0xff);
            break;

        case 0x6b:      /* LD L,E */
            HL = (HL & ~0xff) | (DE & 0xff);
            break;

        case 0x6c:      /* LD L,H */
            HL = (HL & ~0xff) | ((HL >> 8) & 0xff);
            break;

        case 0x6d:      /* LD L,L */
            break;

        case 0x6e:      /* LD L,(HL) */
            SET_LOW_REGISTER(HL, GET_BYTE(HL));
            break;

        case 0x6f:      /* LD L,A */
            HL = (HL & ~0xff) | ((AF >> 8) & 0xff);
            break;

        case 0x70:      /* LD (HL),B */
            PUT_BYTE(HL, HIGH_REGISTER(BC));
            break;

        case 0x71:      /* LD (HL),C */
            PUT_BYTE(HL, LOW_REGISTER(BC));
            break;

        case 0x72:      /* LD (HL),D */
            PUT_BYTE(HL, HIGH_REGISTER(DE));
            break;

        case 0x73:      /* LD (HL),E */
            PUT_BYTE(HL, LOW_REGISTER(DE));
            break;

        case 0x74:      /* LD (HL),H */
            PUT_BYTE(HL, HIGH_REGISTER(HL));
            break;

        case 0x75:      /* LD (HL),L */
            PUT_BYTE(HL, LOW_REGISTER(HL));
            break;

        case 0x76:      /* HALT */
#ifdef DEBUG
            _puts("\r\n::CPU HALTED::");    // A halt is a good indicator of broken code
            _puts("Press any key...");
            _getch();
#endif
            --PC;
            goto end_decode;
            break;

        case 0x77:      /* LD (HL),A */
            PUT_BYTE(HL, HIGH_REGISTER(AF));
            break;

        case 0x78:      /* LD A,B */
            AF = (AF & 0xff) | (BC & ~0xff);
            break;

        case 0x79:      /* LD A,C */
            AF = (AF & 0xff) | ((BC & 0xff) << 8);
            break;

        case 0x7a:      /* LD A,D */
            AF = (AF & 0xff) | (DE & ~0xff);
            break;

        case 0x7b:      /* LD A,E */
            AF = (AF & 0xff) | ((DE & 0xff) << 8);
            break;

        case 0x7c:      /* LD A,H */
            AF = (AF & 0xff) | (HL & ~0xff);
            break;

        case 0x7d:      /* LD A,L */
            AF = (AF & 0xff) | ((HL & 0xff) << 8);
            break;

        case 0x7e:      /* LD A,(HL) */
            SET_HIGH_REGISTER(AF, GET_BYTE(HL));
            break;

        case 0x7f:      /* LD A,A */
            break;

        case 0x80:      /* ADD A,B */
            temp = HIGH_REGISTER(BC);
            acu = HIGH_REGISTER(AF);
            sum = acu + temp;
            cbits = acu ^ temp ^ sum;
            AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
            break;

        case 0x81:      /* ADD A,C */
            temp = LOW_REGISTER(BC);
            acu = HIGH_REGISTER(AF);
            sum = acu + temp;
            cbits = acu ^ temp ^ sum;
            AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
            break;

        case 0x82:      /* ADD A,D */
            temp = HIGH_REGISTER(DE);
            acu = HIGH_REGISTER(AF);
            sum = acu + temp;
            cbits = acu ^ temp ^ sum;
            AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
            break;

        case 0x83:      /* ADD A,E */
            temp = LOW_REGISTER(DE);
            acu = HIGH_REGISTER(AF);
            sum = acu + temp;
            cbits = acu ^ temp ^ sum;
            AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
            break;

        case 0x84:      /* ADD A,H */
            temp = HIGH_REGISTER(HL);
            acu = HIGH_REGISTER(AF);
            sum = acu + temp;
            cbits = acu ^ temp ^ sum;
            AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
            break;

        case 0x85:      /* ADD A,L */
            temp = LOW_REGISTER(HL);
            acu = HIGH_REGISTER(AF);
            sum = acu + temp;
            cbits = acu ^ temp ^ sum;
            AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
            break;

        case 0x86:      /* ADD A,(HL) */
            temp = GET_BYTE(HL);
            acu = HIGH_REGISTER(AF);
            sum = acu + temp;
            cbits = acu ^ temp ^ sum;
            AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
            break;

        case 0x87:      /* ADD A,A */
            cbits = 2 * HIGH_REGISTER(AF);
            AF = cbitsDup8Table[cbits] | (SET_PVS(cbits));
            break;

        case 0x88:      /* ADC A,B */
            temp = HIGH_REGISTER(BC);
            acu = HIGH_REGISTER(AF);
            sum = acu + temp + TSTFLAG(C);
            cbits = acu ^ temp ^ sum;
            AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
            break;

        case 0x89:      /* ADC A,C */
            temp = LOW_REGISTER(BC);
            acu = HIGH_REGISTER(AF);
            sum = acu + temp + TSTFLAG(C);
            cbits = acu ^ temp ^ sum;
            AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
            break;

        case 0x8a:      /* ADC A,D */
            temp = HIGH_REGISTER(DE);
            acu = HIGH_REGISTER(AF);
            sum = acu + temp + TSTFLAG(C);
            cbits = acu ^ temp ^ sum;
            AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
            break;

        case 0x8b:      /* ADC A,E */
            temp = LOW_REGISTER(DE);
            acu = HIGH_REGISTER(AF);
            sum = acu + temp + TSTFLAG(C);
            cbits = acu ^ temp ^ sum;
            AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
            break;

        case 0x8c:      /* ADC A,H */
            temp = HIGH_REGISTER(HL);
            acu = HIGH_REGISTER(AF);
            sum = acu + temp + TSTFLAG(C);
            cbits = acu ^ temp ^ sum;
            AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
            break;

        case 0x8d:      /* ADC A,L */
            temp = LOW_REGISTER(HL);
            acu = HIGH_REGISTER(AF);
            sum = acu + temp + TSTFLAG(C);
            cbits = acu ^ temp ^ sum;
            AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
            break;

        case 0x8e:      /* ADC A,(HL) */
            temp = GET_BYTE(HL);
            acu = HIGH_REGISTER(AF);
            sum = acu + temp + TSTFLAG(C);
            cbits = acu ^ temp ^ sum;
            AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
            break;

        case 0x8f:      /* ADC A,A */
            cbits = 2 * HIGH_REGISTER(AF) + TSTFLAG(C);
            AF = cbitsDup8Table[cbits] | (SET_PVS(cbits));
            break;

        case 0x90:      /* SUB B */
            temp = HIGH_REGISTER(BC);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp;
            cbits = acu ^ temp ^ sum;
            AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
            break;

        case 0x91:      /* SUB C */
            temp = LOW_REGISTER(BC);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp;
            cbits = acu ^ temp ^ sum;
            AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
            break;

        case 0x92:      /* SUB D */
            temp = HIGH_REGISTER(DE);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp;
            cbits = acu ^ temp ^ sum;
            AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
            break;

        case 0x93:      /* SUB E */
            temp = LOW_REGISTER(DE);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp;
            cbits = acu ^ temp ^ sum;
            AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
            break;

        case 0x94:      /* SUB H */
            temp = HIGH_REGISTER(HL);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp;
            cbits = acu ^ temp ^ sum;
            AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
            break;

        case 0x95:      /* SUB L */
            temp = LOW_REGISTER(HL);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp;
            cbits = acu ^ temp ^ sum;
            AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
            break;

        case 0x96:      /* SUB (HL) */
            temp = GET_BYTE(HL);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp;
            cbits = acu ^ temp ^ sum;
            AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
            break;

        case 0x97:      /* SUB A */
            AF = 0x42;
            break;

        case 0x98:      /* SBC A,B */
            temp = HIGH_REGISTER(BC);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp - TSTFLAG(C);
            cbits = acu ^ temp ^ sum;
            AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
            break;

        case 0x99:      /* SBC A,C */
            temp = LOW_REGISTER(BC);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp - TSTFLAG(C);
            cbits = acu ^ temp ^ sum;
            AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
            break;

        case 0x9a:      /* SBC A,D */
            temp = HIGH_REGISTER(DE);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp - TSTFLAG(C);
            cbits = acu ^ temp ^ sum;
            AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
            break;

        case 0x9b:      /* SBC A,E */
            temp = LOW_REGISTER(DE);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp - TSTFLAG(C);
            cbits = acu ^ temp ^ sum;
            AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
            break;

        case 0x9c:      /* SBC A,H */
            temp = HIGH_REGISTER(HL);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp - TSTFLAG(C);
            cbits = acu ^ temp ^ sum;
            AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
            break;

        case 0x9d:      /* SBC A,L */
            temp = LOW_REGISTER(HL);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp - TSTFLAG(C);
            cbits = acu ^ temp ^ sum;
            AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
            break;

        case 0x9e:      /* SBC A,(HL) */
            temp = GET_BYTE(HL);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp - TSTFLAG(C);
            cbits = acu ^ temp ^ sum;
            AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
            break;

        case 0x9f:      /* SBC A,A */
            cbits = -TSTFLAG(C);
            AF = subTable[cbits & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PVS(cbits));
            break;

        case 0xa0:      /* AND B */
            AF = andTable[((AF & BC) >> 8) & 0xff];
            break;

        case 0xa1:      /* AND C */
            AF = andTable[((AF >> 8) & BC) & 0xff];
            break;

        case 0xa2:      /* AND D */
            AF = andTable[((AF & DE) >> 8) & 0xff];
            break;

        case 0xa3:      /* AND E */
            AF = andTable[((AF >> 8) & DE) & 0xff];
            break;

        case 0xa4:      /* AND H */
            AF = andTable[((AF & HL) >> 8) & 0xff];
            break;

        case 0xa5:      /* AND L */
            AF = andTable[((AF >> 8) & HL) & 0xff];
            break;

        case 0xa6:      /* AND (HL) */
            AF = andTable[((AF >> 8) & GET_BYTE(HL)) & 0xff];
            break;

        case 0xa7:      /* AND A */
            AF = andTable[(AF >> 8) & 0xff];
            break;

        case 0xa8:      /* XOR B */
            AF = xororTable[((AF ^ BC) >> 8) & 0xff];
            break;

        case 0xa9:      /* XOR C */
            AF = xororTable[((AF >> 8) ^ BC) & 0xff];
            break;

        case 0xaa:      /* XOR D */
            AF = xororTable[((AF ^ DE) >> 8) & 0xff];
            break;

        case 0xab:      /* XOR E */
            AF = xororTable[((AF >> 8) ^ DE) & 0xff];
            break;

        case 0xac:      /* XOR H */
            AF = xororTable[((AF ^ HL) >> 8) & 0xff];
            break;

        case 0xad:      /* XOR L */
            AF = xororTable[((AF >> 8) ^ HL) & 0xff];
            break;

        case 0xae:      /* XOR (HL) */
            AF = xororTable[((AF >> 8) ^ GET_BYTE(HL)) & 0xff];
            break;

        case 0xaf:      /* XOR A */
            AF = 0x44;
            break;

        case 0xb0:      /* OR B */
            AF = xororTable[((AF | BC) >> 8) & 0xff];
            break;

        case 0xb1:      /* OR C */
            AF = xororTable[((AF >> 8) | BC) & 0xff];
            break;

        case 0xb2:      /* OR D */
            AF = xororTable[((AF | DE) >> 8) & 0xff];
            break;

        case 0xb3:      /* OR E */
            AF = xororTable[((AF >> 8) | DE) & 0xff];
            break;

        case 0xb4:      /* OR H */
            AF = xororTable[((AF | HL) >> 8) & 0xff];
            break;

        case 0xb5:      /* OR L */
            AF = xororTable[((AF >> 8) | HL) & 0xff];
            break;

        case 0xb6:      /* OR (HL) */
            AF = xororTable[((AF >> 8) | GET_BYTE(HL)) & 0xff];
            break;

        case 0xb7:      /* OR A */
            AF = xororTable[(AF >> 8) & 0xff];
            break;

        case 0xb8:      /* CP B */
            temp = HIGH_REGISTER(BC);
            AF = (AF & ~0x28) | (temp & 0x28);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp;
            cbits = acu ^ temp ^ sum;
            AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
                (SET_PV) | cbits2Table[cbits & 0x1ff];
            break;

        case 0xb9:      /* CP C */
            temp = LOW_REGISTER(BC);
            AF = (AF & ~0x28) | (temp & 0x28);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp;
            cbits = acu ^ temp ^ sum;
            AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
                (SET_PV) | cbits2Table[cbits & 0x1ff];
            break;

        case 0xba:      /* CP D */
            temp = HIGH_REGISTER(DE);
            AF = (AF & ~0x28) | (temp & 0x28);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp;
            cbits = acu ^ temp ^ sum;
            AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
                (SET_PV) | cbits2Table[cbits & 0x1ff];
            break;

        case 0xbb:      /* CP E */
            temp = LOW_REGISTER(DE);
            AF = (AF & ~0x28) | (temp & 0x28);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp;
            cbits = acu ^ temp ^ sum;
            AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
                (SET_PV) | cbits2Table[cbits & 0x1ff];
            break;

        case 0xbc:      /* CP H */
            temp = HIGH_REGISTER(HL);
            AF = (AF & ~0x28) | (temp & 0x28);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp;
            cbits = acu ^ temp ^ sum;
            AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
                (SET_PV) | cbits2Table[cbits & 0x1ff];
            break;

        case 0xbd:      /* CP L */
            temp = LOW_REGISTER(HL);
            AF = (AF & ~0x28) | (temp & 0x28);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp;
            cbits = acu ^ temp ^ sum;
            AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
                (SET_PV) | cbits2Table[cbits & 0x1ff];
            break;

        case 0xbe:      /* CP (HL) */
            temp = GET_BYTE(HL);
            AF = (AF & ~0x28) | (temp & 0x28);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp;
            cbits = acu ^ temp ^ sum;
            AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
                (SET_PV) | cbits2Table[cbits & 0x1ff];
            break;

        case 0xbf:      /* CP A */
            SET_LOW_REGISTER(AF, (HIGH_REGISTER(AF) & 0x28) | 0x42);
            break;

        case 0xc0:      /* RET NZ */
            if (!(TSTFLAG(Z)))
                POP(PC);
            break;

        case 0xc1:      /* POP BC */
            POP(BC);
            break;

        case 0xc2:      /* JP NZ,nnnn */
            JPC(!TSTFLAG(Z));
            break;

        case 0xc3:      /* JP nnnn */
            JPC(1);
            break;

        case 0xc4:      /* CALL NZ,nnnn */
            CALLC(!TSTFLAG(Z));
            break;

        case 0xc5:      /* PUSH BC */
            PUSH(BC);
            break;

        case 0xc6:      /* ADD A,nn */
            temp = RAM_PP(PC);
            acu = HIGH_REGISTER(AF);
            sum = acu + temp;
            cbits = acu ^ temp ^ sum;
            AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
            break;

        case 0xc7:      /* RST 0 */
            PUSH(PC);
            PC = 0;
            break;

        case 0xc8:      /* RET Z */
            if (TSTFLAG(Z))
                POP(PC);
            break;

        case 0xc9:      /* RET */
            POP(PC);
            break;

        case 0xca:      /* JP Z,nnnn */
            JPC(TSTFLAG(Z));
            break;

        case 0xcb:      /* CB prefix */
            adr = HL;
            switch ((op = GET_BYTE(PC)) & 7) {

            case 0:
                ++PC;
                acu = HIGH_REGISTER(BC);
                break;

            case 1:
                ++PC;
                acu = LOW_REGISTER(BC);
                break;

            case 2:
                ++PC;
                acu = HIGH_REGISTER(DE);
                break;

            case 3:
                ++PC;
                acu = LOW_REGISTER(DE);
                break;

            case 4:
                ++PC;
                acu = HIGH_REGISTER(HL);
                break;

            case 5:
                ++PC;
                acu = LOW_REGISTER(HL);
                break;

            case 6:
                ++PC;
                acu = GET_BYTE(adr);
                break;

            case 7:
                ++PC;
                acu = HIGH_REGISTER(AF);
                break;
            }
            switch (op & 0xc0) {

            case 0x00:  /* shift/rotate */
                switch (op & 0x38) {

                case 0x00:/* RLC */
                    temp = (acu << 1) | (acu >> 7);
                    cbits = temp & 1;
                    goto cbshflg1;

                case 0x08:/* RRC */
                    temp = (acu >> 1) | (acu << 7);
                    cbits = temp & 0x80;
                    goto cbshflg1;

                case 0x10:/* RL */
                    temp = (acu << 1) | TSTFLAG(C);
                    cbits = acu & 0x80;
                    goto cbshflg1;

                case 0x18:/* RR */
                    temp = (acu >> 1) | (TSTFLAG(C) << 7);
                    cbits = acu & 1;
                    goto cbshflg1;

                case 0x20:/* SLA */
                    temp = acu << 1;
                    cbits = acu & 0x80;
                    goto cbshflg1;

                case 0x28:/* SRA */
                    temp = (acu >> 1) | (acu & 0x80);
                    cbits = acu & 1;
                    goto cbshflg1;

                case 0x30:/* SLIA */
                    temp = (acu << 1) | 1;
                    cbits = acu & 0x80;
                    goto cbshflg1;

                case 0x38:/* SRL */
                    temp = acu >> 1;
                    cbits = acu & 1;
                cbshflg1:
                    AF = (AF & ~0xff) | rotateShiftTable[temp & 0xff] | !!cbits;
                }
                break;

            case 0x40:  /* BIT */
                if (acu & (1 << ((op >> 3) & 7)))
                    AF = (AF & ~0xfe) | 0x10 | (((op & 0x38) == 0x38) << 7);
                else
                    AF = (AF & ~0xfe) | 0x54;
                if ((op & 7) != 6)
                    AF |= (acu & 0x28);
                temp = acu;
                break;

            case 0x80:  /* RES */
                temp = acu & ~(1 << ((op >> 3) & 7));
                break;

            case 0xc0:  /* SET */
                temp = acu | (1 << ((op >> 3) & 7));
                break;
            }
            switch (op & 7) {

            case 0:
                SET_HIGH_REGISTER(BC, temp);
                break;

            case 1:
                SET_LOW_REGISTER(BC, temp);
                break;

            case 2:
                SET_HIGH_REGISTER(DE, temp);
                break;

            case 3:
                SET_LOW_REGISTER(DE, temp);
                break;

            case 4:
                SET_HIGH_REGISTER(HL, temp);
                break;

            case 5:
                SET_LOW_REGISTER(HL, temp);
                break;

            case 6:
                PUT_BYTE(adr, temp);
                break;

            case 7:
                SET_HIGH_REGISTER(AF, temp);
                break;
            }
            break;

        case 0xcc:      /* CALL Z,nnnn */
            CALLC(TSTFLAG(Z));
            break;

        case 0xcd:      /* CALL nnnn */
            CALLC(1);
            break;

        case 0xce:      /* ADC A,nn */
            temp = RAM_PP(PC);
            acu = HIGH_REGISTER(AF);
            sum = acu + temp + TSTFLAG(C);
            cbits = acu ^ temp ^ sum;
            AF = addTable[sum] | cbitsTable[cbits] | (SET_PV);
            break;

        case 0xcf:      /* RST 8 */
            PUSH(PC);
            PC = 8;
            break;

        case 0xd0:      /* RET NC */
            if (!(TSTFLAG(C)))
                POP(PC);
            break;

        case 0xd1:      /* POP DE */
            POP(DE);
            break;

        case 0xd2:      /* JP NC,nnnn */
            JPC(!TSTFLAG(C));
            break;

        case 0xd3:      /* OUT (nn),A */
            cpu_out(cpu, RAM_PP(PC), HIGH_REGISTER(AF));
            break;

        case 0xd4:      /* CALL NC,nnnn */
            CALLC(!TSTFLAG(C));
            break;

        case 0xd5:      /* PUSH DE */
            PUSH(DE);
            break;

        case 0xd6:      /* SUB nn */
            temp = RAM_PP(PC);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp;
            cbits = acu ^ temp ^ sum;
            AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
            break;

        case 0xd7:      /* RST 10H */
            PUSH(PC);
            PC = 0x10;
            break;

        case 0xd8:      /* RET C */
            if (TSTFLAG(C))
                POP(PC);
            break;

        case 0xd9:      /* EXX */
            temp = BC;
            BC = BC1;
            BC1 = temp;
            temp = DE;
            DE = DE1;
            DE1 = temp;
            temp = HL;
            HL = HL1;
            HL1 = temp;
            break;

        case 0xda:      /* JP C,nnnn */
            JPC(TSTFLAG(C));
            break;

        case 0xdb:      /* IN A,(nn) */
            SET_HIGH_REGISTER(AF, cpu_in(cpu, RAM_PP(PC)));
            break;

        case 0xdc:      /* CALL C,nnnn */
            CALLC(TSTFLAG(C));
            break;

        case 0xdd:      /* DD prefix */
            switch (RAM_PP(PC)) {

            case 0x09:      /* ADD IX,BC */
                IX &= ADDRMASK;
                BC &= ADDRMASK;
                sum = IX + BC;
                AF = (AF & ~0x3b) | ((sum >> 8) & 0x28) | cbitsTable[(IX ^ BC ^ sum) >> 8];
                IX = sum;
                break;

            case 0x19:      /* ADD IX,DE */
                IX &= ADDRMASK;
                DE &= ADDRMASK;
                sum = IX + DE;
                AF = (AF & ~0x3b) | ((sum >> 8) & 0x28) | cbitsTable[(IX ^ DE ^ sum) >> 8];
                IX = sum;
                break;

            case 0x21:      /* LD IX,nnnn */
                IX = GET_WORD(PC);
                PC += 2;
                break;

            case 0x22:      /* LD (nnnn),IX */
                temp = GET_WORD(PC);
                PUT_WORD(temp, IX);
                PC += 2;
                break;

            case 0x23:      /* INC IX */
                ++IX;
                break;

            case 0x24:      /* INC IXH */
                IX += 0x100;
                AF = (AF & ~0xfe) | incZ80Table[HIGH_REGISTER(IX)];
                break;

            case 0x25:      /* DEC IXH */
                IX -= 0x100;
                AF = (AF & ~0xfe) | decZ80Table[HIGH_REGISTER(IX)];
                break;

            case 0x26:      /* LD IXH,nn */
                SET_HIGH_REGISTER(IX, RAM_PP(PC));
                break;

            case 0x29:      /* ADD IX,IX */
                IX &= ADDRMASK;
                sum = IX + IX;
                AF = (AF & ~0x3b) | cbitsDup16Table[sum >> 8];
                IX = sum;
                break;

            case 0x2a:      /* LD IX,(nnnn) */
                temp = GET_WORD(PC);
                IX = GET_WORD(temp);
                PC += 2;
                break;

            case 0x2b:      /* DEC IX */
                --IX;
                break;

            case 0x2c:      /* INC IXL */
                temp = LOW_REGISTER(IX) + 1;
                SET_LOW_REGISTER(IX, temp);
                AF = (AF & ~0xfe) | incZ80Table[temp];
                break;

            case 0x2d:      /* DEC IXL */
                temp = LOW_REGISTER(IX) - 1;
                SET_LOW_REGISTER(IX, temp);
                AF = (AF & ~0xfe) | decZ80Table[temp & 0xff];
                break;

            case 0x2e:      /* LD IXL,nn */
                SET_LOW_REGISTER(IX, RAM_PP(PC));
                break;

            case 0x34:      /* INC (IX+dd) */
                adr = IX + (int8_t)RAM_PP(PC);
                temp = GET_BYTE(adr) + 1;
                PUT_BYTE(adr, temp);
                AF = (AF & ~0xfe) | incZ80Table[temp];
                break;

            case 0x35:      /* DEC (IX+dd) */
                adr = IX + (int8_t)RAM_PP(PC);
                temp = GET_BYTE(adr) - 1;
                PUT_BYTE(adr, temp);
                AF = (AF & ~0xfe) | decZ80Table[temp & 0xff];
                break;

            case 0x36:      /* LD (IX+dd),nn */
                adr = IX + (int8_t)RAM_PP(PC);
                PUT_BYTE(adr, RAM_PP(PC));
                break;

            case 0x39:      /* ADD IX,SP */
                IX &= ADDRMASK;
                SP &= ADDRMASK;
                sum = IX + SP;
                AF = (AF & ~0x3b) | ((sum >> 8) & 0x28) | cbitsTable[(IX ^ SP ^ sum) >> 8];
                IX = sum;
                break;

            case 0x44:      /* LD B,IXH */
                SET_HIGH_REGISTER(BC, HIGH_REGISTER(IX));
                break;

            case 0x45:      /* LD B,IXL */
                SET_HIGH_REGISTER(BC, LOW_REGISTER(IX));
                break;

            case 0x46:      /* LD B,(IX+dd) */
                adr = IX + (int8_t)RAM_PP(PC);
                SET_HIGH_REGISTER(BC, GET_BYTE(adr));
                break;

            case 0x4c:      /* LD C,IXH */
                SET_LOW_REGISTER(BC, HIGH_REGISTER(IX));
                break;

            case 0x4d:      /* LD C,IXL */
                SET_LOW_REGISTER(BC, LOW_REGISTER(IX));
                break;

            case 0x4e:      /* LD C,(IX+dd) */
                adr = IX + (int8_t)RAM_PP(PC);
                SET_LOW_REGISTER(BC, GET_BYTE(adr));
                break;

            case 0x54:      /* LD D,IXH */
                SET_HIGH_REGISTER(DE, HIGH_REGISTER(IX));
                break;

            case 0x55:      /* LD D,IXL */
                SET_HIGH_REGISTER(DE, LOW_REGISTER(IX));
                break;

            case 0x56:      /* LD D,(IX+dd) */
                adr = IX + (int8_t)RAM_PP(PC);
                SET_HIGH_REGISTER(DE, GET_BYTE(adr));
                break;

            case 0x5c:      /* LD E,IXH */
                SET_LOW_REGISTER(DE, HIGH_REGISTER(IX));
                break;

            case 0x5d:      /* LD E,IXL */
                SET_LOW_REGISTER(DE, LOW_REGISTER(IX));
                break;

            case 0x5e:      /* LD E,(IX+dd) */
                adr = IX + (int8_t)RAM_PP(PC);
                SET_LOW_REGISTER(DE, GET_BYTE(adr));
                break;

            case 0x60:      /* LD IXH,B */
                SET_HIGH_REGISTER(IX, HIGH_REGISTER(BC));
                break;

            case 0x61:      /* LD IXH,C */
                SET_HIGH_REGISTER(IX, LOW_REGISTER(BC));
                break;

            case 0x62:      /* LD IXH,D */
                SET_HIGH_REGISTER(IX, HIGH_REGISTER(DE));
                break;

            case 0x63:      /* LD IXH,E */
                SET_HIGH_REGISTER(IX, LOW_REGISTER(DE));
                break;

            case 0x64:      /* LD IXH,IXH */
                break;

            case 0x65:      /* LD IXH,IXL */
                SET_HIGH_REGISTER(IX, LOW_REGISTER(IX));
                break;

            case 0x66:      /* LD H,(IX+dd) */
                adr = IX + (int8_t)RAM_PP(PC);
                SET_HIGH_REGISTER(HL, GET_BYTE(adr));
                break;

            case 0x67:      /* LD IXH,A */
                SET_HIGH_REGISTER(IX, HIGH_REGISTER(AF));
                break;

            case 0x68:      /* LD IXL,B */
                SET_LOW_REGISTER(IX, HIGH_REGISTER(BC));
                break;

            case 0x69:      /* LD IXL,C */
                SET_LOW_REGISTER(IX, LOW_REGISTER(BC));
                break;

            case 0x6a:      /* LD IXL,D */
                SET_LOW_REGISTER(IX, HIGH_REGISTER(DE));
                break;

            case 0x6b:      /* LD IXL,E */
                SET_LOW_REGISTER(IX, LOW_REGISTER(DE));
                break;

            case 0x6c:      /* LD IXL,IXH */
                SET_LOW_REGISTER(IX, HIGH_REGISTER(IX));
                break;

            case 0x6d:      /* LD IXL,IXL */
                break;

            case 0x6e:      /* LD L,(IX+dd) */
                adr = IX + (int8_t)RAM_PP(PC);
                SET_LOW_REGISTER(HL, GET_BYTE(adr));
                break;

            case 0x6f:      /* LD IXL,A */
                SET_LOW_REGISTER(IX, HIGH_REGISTER(AF));
                break;

            case 0x70:      /* LD (IX+dd),B */
                adr = IX + (int8_t)RAM_PP(PC);
                PUT_BYTE(adr, HIGH_REGISTER(BC));
                break;

            case 0x71:      /* LD (IX+dd),C */
                adr = IX + (int8_t)RAM_PP(PC);
                PUT_BYTE(adr, LOW_REGISTER(BC));
                break;

            case 0x72:      /* LD (IX+dd),D */
                adr = IX + (int8_t)RAM_PP(PC);
                PUT_BYTE(adr, HIGH_REGISTER(DE));
                break;

            case 0x73:      /* LD (IX+dd),E */
                adr = IX + (int8_t)RAM_PP(PC);
                PUT_BYTE(adr, LOW_REGISTER(DE));
                break;

            case 0x74:      /* LD (IX+dd),H */
                adr = IX + (int8_t)RAM_PP(PC);
                PUT_BYTE(adr, HIGH_REGISTER(HL));
                break;

            case 0x75:      /* LD (IX+dd),L */
                adr = IX + (int8_t)RAM_PP(PC);
                PUT_BYTE(adr, LOW_REGISTER(HL));
                break;

            case 0x77:      /* LD (IX+dd),A */
                adr = IX + (int8_t)RAM_PP(PC);
                PUT_BYTE(adr, HIGH_REGISTER(AF));
                break;

            case 0x7c:      /* LD A,IXH */
                SET_HIGH_REGISTER(AF, HIGH_REGISTER(IX));
                break;

            case 0x7d:      /* LD A,IXL */
                SET_HIGH_REGISTER(AF, LOW_REGISTER(IX));
                break;

            case 0x7e:      /* LD A,(IX+dd) */
                adr = IX + (int8_t)RAM_PP(PC);
                SET_HIGH_REGISTER(AF, GET_BYTE(adr));
                break;

            case 0x84:      /* ADD A,IXH */
                temp = HIGH_REGISTER(IX);
                acu = HIGH_REGISTER(AF);
                sum = acu + temp;
                AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
                break;

            case 0x85:      /* ADD A,IXL */
                temp = LOW_REGISTER(IX);
                acu = HIGH_REGISTER(AF);
                sum = acu + temp;
                AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
                break;

            case 0x86:      /* ADD A,(IX+dd) */
                adr = IX + (int8_t)RAM_PP(PC);
                temp = GET_BYTE(adr);
                acu = HIGH_REGISTER(AF);
                sum = acu + temp;
                AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
                break;

            case 0x8c:      /* ADC A,IXH */
                temp = HIGH_REGISTER(IX);
                acu = HIGH_REGISTER(AF);
                sum = acu + temp + TSTFLAG(C);
                AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
                break;

            case 0x8d:      /* ADC A,IXL */
                temp = LOW_REGISTER(IX);
                acu = HIGH_REGISTER(AF);
                sum = acu + temp + TSTFLAG(C);
                AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
                break;

            case 0x8e:      /* ADC A,(IX+dd) */
                adr = IX + (int8_t)RAM_PP(PC);
                temp = GET_BYTE(adr);
                acu = HIGH_REGISTER(AF);
                sum = acu + temp + TSTFLAG(C);
                AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
                break;

            case 0x96:      /* SUB (IX+dd) */
                adr = IX + (int8_t)RAM_PP(PC);
                temp = GET_BYTE(adr);
                acu = HIGH_REGISTER(AF);
                sum = acu - temp;
                AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
                break;

            case 0x94:      /* SUB IXH */
                SETFLAG(C, 0);/* fall through, a bit less efficient but smaller code */

            case 0x9c:      /* SBC A,IXH */
                temp = HIGH_REGISTER(IX);
                acu = HIGH_REGISTER(AF);
                sum = acu - temp - TSTFLAG(C);
                AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
                break;

            case 0x95:      /* SUB IXL */
                SETFLAG(C, 0);/* fall through, a bit less efficient but smaller code */

            case 0x9d:      /* SBC A,IXL */
                temp = LOW_REGISTER(IX);
                acu = HIGH_REGISTER(AF);
                sum = acu - temp - TSTFLAG(C);
                AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
                break;

            case 0x9e:      /* SBC A,(IX+dd) */
                adr = IX + (int8_t)RAM_PP(PC);
                temp = GET_BYTE(adr);
                acu = HIGH_REGISTER(AF);
                sum = acu - temp - TSTFLAG(C);
                AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
                break;

            case 0xa4:      /* AND IXH */
                AF = andTable[((AF & IX) >> 8) & 0xff];
                break;

            case 0xa5:      /* AND IXL */
                AF = andTable[((AF >> 8) & IX) & 0xff];
                break;

            case 0xa6:      /* AND (IX+dd) */
                adr = IX + (int8_t)RAM_PP(PC);
                AF = andTable[((AF >> 8) & GET_BYTE(adr)) & 0xff];
                break;

            case 0xac:      /* XOR IXH */
                AF = xororTable[((AF ^ IX) >> 8) & 0xff];
                break;

            case 0xad:      /* XOR IXL */
                AF = xororTable[((AF >> 8) ^ IX) & 0xff];
                break;

            case 0xae:      /* XOR (IX+dd) */
                adr = IX + (int8_t)RAM_PP(PC);
                AF = xororTable[((AF >> 8) ^ GET_BYTE(adr)) & 0xff];
                break;

            case 0xb4:      /* OR IXH */
                AF = xororTable[((AF | IX) >> 8) & 0xff];
                break;

            case 0xb5:      /* OR IXL */
                AF = xororTable[((AF >> 8) | IX) & 0xff];
                break;

            case 0xb6:      /* OR (IX+dd) */
                adr = IX + (int8_t)RAM_PP(PC);
                AF = xororTable[((AF >> 8) | GET_BYTE(adr)) & 0xff];
                break;

            case 0xbc:      /* CP IXH */
                temp = HIGH_REGISTER(IX);
                AF = (AF & ~0x28) | (temp & 0x28);
                acu = HIGH_REGISTER(AF);
                sum = acu - temp;
                AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
                    cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
                break;

            case 0xbd:      /* CP IXL */
                temp = LOW_REGISTER(IX);
                AF = (AF & ~0x28) | (temp & 0x28);
                acu = HIGH_REGISTER(AF);
                sum = acu - temp;
                AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
                    cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
                break;

            case 0xbe:      /* CP (IX+dd) */
                adr = IX + (int8_t)RAM_PP(PC);
                temp = GET_BYTE(adr);
                AF = (AF & ~0x28) | (temp & 0x28);
                acu = HIGH_REGISTER(AF);
                sum = acu - temp;
                AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
                    cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
                break;

            case 0xcb:      /* CB prefix */
                adr = IX + (int8_t)RAM_PP(PC);
                switch ((op = GET_BYTE(PC)) & 7) {

                case 0:
                    ++PC;
                    acu = HIGH_REGISTER(BC);
                    break;

                case 1:
                    ++PC;
                    acu = LOW_REGISTER(BC);
                    break;

                case 2:
                    ++PC;
                    acu = HIGH_REGISTER(DE);
                    break;

                case 3:
                    ++PC;
                    acu = LOW_REGISTER(DE);
                    break;

                case 4:
                    ++PC;
                    acu = HIGH_REGISTER(HL);
                    break;

                case 5:
                    ++PC;
                    acu = LOW_REGISTER(HL);
                    break;

                case 6:
                    ++PC;
                    acu = GET_BYTE(adr);
                    break;

                case 7:
                    ++PC;
                    acu = HIGH_REGISTER(AF);
                    break;
                }
                switch (op & 0xc0) {

                case 0x00:  /* shift/rotate */
                    switch (op & 0x38) {

                    case 0x00:/* RLC */
                        temp = (acu << 1) | (acu >> 7);
                        cbits = temp & 1;
                        goto cbshflg2;

                    case 0x08:/* RRC */
                        temp = (acu >> 1) | (acu << 7);
                        cbits = temp & 0x80;
                        goto cbshflg2;

                    case 0x10:/* RL */
                        temp = (acu << 1) | TSTFLAG(C);
                        cbits = acu & 0x80;
                        goto cbshflg2;

                    case 0x18:/* RR */
                        temp = (acu >> 1) | (TSTFLAG(C) << 7);
                        cbits = acu & 1;
                        goto cbshflg2;

                    case 0x20:/* SLA */
                        temp = acu << 1;
                        cbits = acu & 0x80;
                        goto cbshflg2;

                    case 0x28:/* SRA */
                        temp = (acu >> 1) | (acu & 0x80);
                        cbits = acu & 1;
                        goto cbshflg2;

                    case 0x30:/* SLIA */
                        temp = (acu << 1) | 1;
                        cbits = acu & 0x80;
                        goto cbshflg2;

                    case 0x38:/* SRL */
                        temp = acu >> 1;
                        cbits = acu & 1;
                    cbshflg2:
                        AF = (AF & ~0xff) | rotateShiftTable[temp & 0xff] | !!cbits;
                    }
                    break;

                case 0x40:  /* BIT */
                    if (acu & (1 << ((op >> 3) & 7)))
                        AF = (AF & ~0xfe) | 0x10 | (((op & 0x38) == 0x38) << 7);
                    else
                        AF = (AF & ~0xfe) | 0x54;
                    if ((op & 7) != 6)
                        AF |= (acu & 0x28);
                    temp = acu;
                    break;

                case 0x80:  /* RES */
                    temp = acu & ~(1 << ((op >> 3) & 7));
                    break;

                case 0xc0:  /* SET */
                    temp = acu | (1 << ((op >> 3) & 7));
                    break;
                }
                switch (op & 7) {

                case 0:
                    SET_HIGH_REGISTER(BC, temp);
                    break;

                case 1:
                    SET_LOW_REGISTER(BC, temp);
                    break;

                case 2:
                    SET_HIGH_REGISTER(DE, temp);
                    break;

                case 3:
                    SET_LOW_REGISTER(DE, temp);
                    break;

                case 4:
                    SET_HIGH_REGISTER(HL, temp);
                    break;

                case 5:
                    SET_LOW_REGISTER(HL, temp);
                    break;

                case 6:
                    PUT_BYTE(adr, temp);
                    break;

                case 7:
                    SET_HIGH_REGISTER(AF, temp);
                    break;
                }
                break;

            case 0xe1:      /* POP IX */
                POP(IX);
                break;

            case 0xe3:      /* EX (SP),IX */
                temp = IX;
                POP(IX);
                PUSH(temp);
                break;

            case 0xe5:      /* PUSH IX */
                PUSH(IX);
                break;

            case 0xe9:      /* JP (IX) */
                PC = IX;
                break;

            case 0xf9:      /* LD SP,IX */
                SP = IX;
                break;

            default:                /* ignore DD */
                --PC;
            }
            break;

        case 0xde:          /* SBC A,nn */
            temp = RAM_PP(PC);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp - TSTFLAG(C);
            cbits = acu ^ temp ^ sum;
            AF = subTable[sum & 0xff] | cbitsTable[cbits & 0x1ff] | (SET_PV);
            break;

        case 0xdf:      /* RST 18H */
            PUSH(PC);
            PC = 0x18;
            break;

        case 0xe0:      /* RET PO */
            if (!(TSTFLAG(P)))
                POP(PC);
            break;

        case 0xe1:      /* POP HL */
            POP(HL);
            break;

        case 0xe2:      /* JP PO,nnnn */
            JPC(!TSTFLAG(P));
            break;

        case 0xe3:      /* EX (SP),HL */
            temp = HL;
            POP(HL);
            PUSH(temp);
            break;

        case 0xe4:      /* CALL PO,nnnn */
            CALLC(!TSTFLAG(P));
            break;

        case 0xe5:      /* PUSH HL */
            PUSH(HL);
            break;

        case 0xe6:      /* AND nn */
            AF = andTable[((AF >> 8) & RAM_PP(PC)) & 0xff];
            break;

        case 0xe7:      /* RST 20H */
            PUSH(PC);
            PC = 0x20;
            break;

        case 0xe8:      /* RET PE */
            if (TSTFLAG(P))
                POP(PC);
            break;

        case 0xe9:      /* JP (HL) */
            PC = HL;
            break;

        case 0xea:      /* JP PE,nnnn */
            JPC(TSTFLAG(P));
            break;

        case 0xeb:      /* EX DE,HL */
            temp = HL;
            HL = DE;
            DE = temp;
            break;

        case 0xec:      /* CALL PE,nnnn */
            CALLC(TSTFLAG(P));
            break;

        case 0xed:      /* ED prefix */
            switch (RAM_PP(PC)) {

            case 0x40:      /* IN B,(C) */
                temp = cpu_in(cpu, LOW_REGISTER(BC));
                SET_HIGH_REGISTER(BC, temp);
                AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff];
                break;

            case 0x41:      /* OUT (C),B */
                cpu_out(cpu, LOW_REGISTER(BC), HIGH_REGISTER(BC));
                break;

            case 0x42:      /* SBC HL,BC */
                HL &= ADDRMASK;
                BC &= ADDRMASK;
                sum = HL - BC - TSTFLAG(C);
                AF = (AF & ~0xff) | ((sum >> 8) & 0xa8) | (((sum & ADDRMASK) == 0) << 6) |
                    cbits2Z80Table[((HL ^ BC ^ sum) >> 8) & 0x1ff];
                HL = sum;
                break;

            case 0x43:      /* LD (nnnn),BC */
                temp = GET_WORD(PC);
                PUT_WORD(temp, BC);
                PC += 2;
                break;

            case 0x44:      /* NEG */

            case 0x4C:      /* NEG, unofficial */

            case 0x54:      /* NEG, unofficial */

            case 0x5C:      /* NEG, unofficial */

            case 0x64:      /* NEG, unofficial */

            case 0x6C:      /* NEG, unofficial */

            case 0x74:      /* NEG, unofficial */

            case 0x7C:      /* NEG, unofficial */
                temp = HIGH_REGISTER(AF);
                AF = ((~(AF & 0xff00) + 1) & 0xff00); /* AF = (-(AF & 0xff00) & 0xff00); */
                AF |= ((AF >> 8) & 0xa8) | (((AF & 0xff00) == 0) << 6) | negTable[temp];
                break;

            case 0x45:      /* RETN */

            case 0x55:      /* RETN, unofficial */

            case 0x5D:      /* RETN, unofficial */

            case 0x65:      /* RETN, unofficial */

            case 0x6D:      /* RETN, unofficial */

            case 0x75:      /* RETN, unofficial */

            case 0x7D:      /* RETN, unofficial */
                IFF |= IFF >> 1;
                POP(PC);
                break;

            case 0x46:      /* IM 0 */
                            /* interrupt mode 0 */
                break;

            case 0x47:      /* LD I,A */
                IR = (IR & 0xff) | (AF & ~0xff);
                break;

            case 0x48:      /* IN C,(C) */
                temp = cpu_in(cpu, LOW_REGISTER(BC));
                SET_LOW_REGISTER(BC, temp);
                AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff];
                break;

            case 0x49:      /* OUT (C),C */
                cpu_out(cpu, LOW_REGISTER(BC), LOW_REGISTER(BC));
                break;

            case 0x4a:      /* ADC HL,BC */
                HL &= ADDRMASK;
                BC &= ADDRMASK;
                sum = HL + BC + TSTFLAG(C);
                AF = (AF & ~0xff) | ((sum >> 8) & 0xa8) | (((sum & ADDRMASK) == 0) << 6) |
                    cbitsZ80Table[(HL ^ BC ^ sum) >> 8];
                HL = sum;
                break;

            case 0x4b:      /* LD BC,(nnnn) */
                temp = GET_WORD(PC);
                BC = GET_WORD(temp);
                PC += 2;
                break;

            case 0x4d:      /* RETI */
                IFF |= IFF >> 1;
                POP(PC);
                break;

            case 0x4f:      /* LD R,A */
                IR = (IR & ~0xff) | ((AF >> 8) & 0xff);
                break;

            case 0x50:      /* IN D,(C) */
                temp = cpu_in(cpu, LOW_REGISTER(BC));
                SET_HIGH_REGISTER(DE, temp);
                AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff];
                break;

            case 0x51:      /* OUT (C),D */
                cpu_out(cpu, LOW_REGISTER(BC), HIGH_REGISTER(DE));
                break;

            case 0x52:      /* SBC HL,DE */
                HL &= ADDRMASK;
                DE &= ADDRMASK;
                sum = HL - DE - TSTFLAG(C);
                AF = (AF & ~0xff) | ((sum >> 8) & 0xa8) | (((sum & ADDRMASK) == 0) << 6) |
                    cbits2Z80Table[((HL ^ DE ^ sum) >> 8) & 0x1ff];
                HL = sum;
                break;

            case 0x53:      /* LD (nnnn),DE */
                temp = GET_WORD(PC);
                PUT_WORD(temp, DE);
                PC += 2;
                break;

            case 0x56:      /* IM 1 */
                            /* interrupt mode 1 */
                break;

            case 0x57:      /* LD A,I */
                AF = (AF & 0x29) | (IR & ~0xff) | ((IR >> 8) & 0x80) | (((IR & ~0xff) == 0) << 6) | ((IFF & 2) << 1);
                break;

            case 0x58:      /* IN E,(C) */
                temp = cpu_in(cpu, LOW_REGISTER(BC));
                SET_LOW_REGISTER(DE, temp);
                AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff];
                break;

            case 0x59:      /* OUT (C),E */
                cpu_out(cpu, LOW_REGISTER(BC), LOW_REGISTER(DE));
                break;

            case 0x5a:      /* ADC HL,DE */
                HL &= ADDRMASK;
                DE &= ADDRMASK;
                sum = HL + DE + TSTFLAG(C);
                AF = (AF & ~0xff) | ((sum >> 8) & 0xa8) | (((sum & ADDRMASK) == 0) << 6) |
                    cbitsZ80Table[(HL ^ DE ^ sum) >> 8];
                HL = sum;
                break;

            case 0x5b:      /* LD DE,(nnnn) */
                temp = GET_WORD(PC);
                DE = GET_WORD(temp);
                PC += 2;
                break;

            case 0x5e:      /* IM 2 */
                            /* interrupt mode 2 */
                break;

            case 0x5f:      /* LD A,R */
                AF = (AF & 0x29) | ((IR & 0xff) << 8) | (IR & 0x80) |
                    (((IR & 0xff) == 0) << 6) | ((IFF & 2) << 1);
                break;

            case 0x60:      /* IN H,(C) */
                temp = cpu_in(cpu, LOW_REGISTER(BC));
                SET_HIGH_REGISTER(HL, temp);
                AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff];
                break;

            case 0x61:      /* OUT (C),H */
                cpu_out(cpu, LOW_REGISTER(BC), HIGH_REGISTER(HL));
                break;

            case 0x62:      /* SBC HL,HL */
                HL &= ADDRMASK;
                sum = HL - HL - TSTFLAG(C);
                AF = (AF & ~0xff) | (((sum & ADDRMASK) == 0) << 6) |
                    cbits2Z80DupTable[(sum >> 8) & 0x1ff];
                HL = sum;
                break;

            case 0x63:      /* LD (nnnn),HL */
                temp = GET_WORD(PC);
                PUT_WORD(temp, HL);
                PC += 2;
                break;

            case 0x67:      /* RRD */
                temp = GET_BYTE(HL);
                acu = HIGH_REGISTER(AF);
                PUT_BYTE(HL, HIGH_DIGIT(temp) | (LOW_DIGIT(acu) << 4));
                AF = rrdrldTable[(acu & 0xf0) | LOW_DIGIT(temp)] | (AF & 1);
                break;

            case 0x68:      /* IN L,(C) */
                temp = cpu_in(cpu, LOW_REGISTER(BC));
                SET_LOW_REGISTER(HL, temp);
                AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff];
                break;

            case 0x69:      /* OUT (C),L */
                cpu_out(cpu, LOW_REGISTER(BC), LOW_REGISTER(HL));
                break;

            case 0x6a:      /* ADC HL,HL */
                HL &= ADDRMASK;
                sum = HL + HL + TSTFLAG(C);
                AF = (AF & ~0xff) | (((sum & ADDRMASK) == 0) << 6) |
                    cbitsZ80DupTable[sum >> 8];
                HL = sum;
                break;

            case 0x6b:      /* LD HL,(nnnn) */
                temp = GET_WORD(PC);
                HL = GET_WORD(temp);
                PC += 2;
                break;

            case 0x6f:      /* RLD */
                temp = GET_BYTE(HL);
                acu = HIGH_REGISTER(AF);
                PUT_BYTE(HL, (LOW_DIGIT(temp) << 4) | LOW_DIGIT(acu));
                AF = rrdrldTable[(acu & 0xf0) | HIGH_DIGIT(temp)] | (AF & 1);
                break;

            case 0x70:      /* IN (C) */
                temp = cpu_in(cpu, LOW_REGISTER(BC));
                SET_LOW_REGISTER(temp, temp);
                AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff];
                break;

            case 0x71:      /* OUT (C),0 */
                cpu_out(cpu, LOW_REGISTER(BC), 0);
                break;

            case 0x72:      /* SBC HL,SP */
                HL &= ADDRMASK;
                SP &= ADDRMASK;
                sum = HL - SP - TSTFLAG(C);
                AF = (AF & ~0xff) | ((sum >> 8) & 0xa8) | (((sum & ADDRMASK) == 0) << 6) |
                    cbits2Z80Table[((HL ^ SP ^ sum) >> 8) & 0x1ff];
                HL = sum;
                break;

            case 0x73:      /* LD (nnnn),SP */
                temp = GET_WORD(PC);
                PUT_WORD(temp, SP);
                PC += 2;
                break;

            case 0x78:      /* IN A,(C) */
                temp = cpu_in(cpu, LOW_REGISTER(BC));
                SET_HIGH_REGISTER(AF, temp);
                AF = (AF & ~0xfe) | rotateShiftTable[temp & 0xff];
                break;

            case 0x79:      /* OUT (C),A */
                cpu_out(cpu, LOW_REGISTER(BC), HIGH_REGISTER(AF));
                break;

            case 0x7a:      /* ADC HL,SP */
                HL &= ADDRMASK;
                SP &= ADDRMASK;
                sum = HL + SP + TSTFLAG(C);
                AF = (AF & ~0xff) | ((sum >> 8) & 0xa8) | (((sum & ADDRMASK) == 0) << 6) |
                    cbitsZ80Table[(HL ^ SP ^ sum) >> 8];
                HL = sum;
                break;

            case 0x7b:      /* LD SP,(nnnn) */
                temp = GET_WORD(PC);
                SP = GET_WORD(temp);
                PC += 2;
                break;

            case 0xa0:      /* LDI */
                acu = RAM_PP(HL);
                PUT_BYTE_PP(DE, acu);
                acu += HIGH_REGISTER(AF);
                AF = (AF & ~0x3e) | (acu & 8) | ((acu & 2) << 4) |
                    (((--BC & ADDRMASK) != 0) << 2);
                break;

            case 0xa1:      /* CPI */
                acu = HIGH_REGISTER(AF);
                temp = RAM_PP(HL);
                sum = acu - temp;
                cbits = acu ^ temp ^ sum;
                AF = (AF & ~0xfe) | (sum & 0x80) | (!(sum & 0xff) << 6) |
                    (((sum - ((cbits & 16) >> 4)) & 2) << 4) | (cbits & 16) |
                    ((sum - ((cbits >> 4) & 1)) & 8) |
                    ((--BC & ADDRMASK) != 0) << 2 | 2;
                if ((sum & 15) == 8 && (cbits & 16) != 0)
                    AF &= ~8;
                break;

                /*  SF, ZF, YF, XF flags are affected by decreasing register B, as in DEC B.
                NF flag A is copy of bit 7 of the value read from or written to an I/O port.
                INI/INIR/IND/INDR use the C flag in stead of the L register. There is a
                catch though, because not the value of C is used, but C + 1 if it's INI/INIR or
                C - 1 if it's IND/INDR. So, first of all INI/INIR:
                HF and CF Both set if ((HL) + ((C + 1) & 255) > 255)
                PF The parity of (((HL) + ((C + 1) & 255)) & 7) xor B)                      */
            case 0xa2:      /* INI */
                acu = cpu_in(cpu, LOW_REGISTER(BC));
                PUT_BYTE(HL, acu);
                ++HL;
                temp = HIGH_REGISTER(BC);
                BC -= 0x100;
                INOUTFLAGS_NONZERO((LOW_REGISTER(BC) + 1) & 0xff);
                break;

                /*  SF, ZF, YF, XF flags are affected by decreasing register B, as in DEC B.
                NF flag A is copy of bit 7 of the value read from or written to an I/O port.
                And now the for OUTI/OTIR/OUTD/OTDR instructions. Take state of the L
                after the increment or decrement of HL; add the value written to the I/O port
                to; call that k for now. If k > 255, then the CF and HF flags are set. The PF
                flags is set like the parity of k bitwise and'ed with 7, bitwise xor'ed with B.
                HF and CF Both set if ((HL) + L > 255)
                PF The parity of ((((HL) + L) & 7) xor B)                                       */
            case 0xa3:      /* OUTI */
                acu = GET_BYTE(HL);
                cpu_out(cpu, LOW_REGISTER(BC), acu);
                ++HL;
                temp = HIGH_REGISTER(BC);
                BC -= 0x100;
                INOUTFLAGS_NONZERO(LOW_REGISTER(HL));
                break;

            case 0xa8:      /* LDD */
                acu = RAM_MM(HL);
                PUT_BYTE_MM(DE, acu);
                acu += HIGH_REGISTER(AF);
                AF = (AF & ~0x3e) | (acu & 8) | ((acu & 2) << 4) |
                    (((--BC & ADDRMASK) != 0) << 2);
                break;

            case 0xa9:      /* CPD */
                acu = HIGH_REGISTER(AF);
                temp = RAM_MM(HL);
                sum = acu - temp;
                cbits = acu ^ temp ^ sum;
                AF = (AF & ~0xfe) | (sum & 0x80) | (!(sum & 0xff) << 6) |
                    (((sum - ((cbits & 16) >> 4)) & 2) << 4) | (cbits & 16) |
                    ((sum - ((cbits >> 4) & 1)) & 8) |
                    ((--BC & ADDRMASK) != 0) << 2 | 2;
                if ((sum & 15) == 8 && (cbits & 16) != 0)
                    AF &= ~8;
                break;

                /*  SF, ZF, YF, XF flags are affected by decreasing register B, as in DEC B.
                NF flag A is copy of bit 7 of the value read from or written to an I/O port.
                INI/INIR/IND/INDR use the C flag in stead of the L register. There is a
                catch though, because not the value of C is used, but C + 1 if it's INI/INIR or
                C - 1 if it's IND/INDR. And last IND/INDR:
                HF and CF Both set if ((HL) + ((C - 1) & 255) > 255)
                PF The parity of (((HL) + ((C - 1) & 255)) & 7) xor B)                      */
            case 0xaa:      /* IND */
                acu = cpu_in(cpu, LOW_REGISTER(BC));
                PUT_BYTE(HL, acu);
                --HL;
                temp = HIGH_REGISTER(BC);
                BC -= 0x100;
                INOUTFLAGS_NONZERO((LOW_REGISTER(BC) - 1) & 0xff);
                break;

            case 0xab:      /* OUTD */
                acu = GET_BYTE(HL);
                cpu_out(cpu, LOW_REGISTER(BC), acu);
                --HL;
                temp = HIGH_REGISTER(BC);
                BC -= 0x100;
                INOUTFLAGS_NONZERO(LOW_REGISTER(HL));
                break;

            case 0xb0:      /* LDIR */
                BC &= ADDRMASK;
                if (BC == 0)
                    BC = 0x10000;
                do {
                    acu = RAM_PP(HL);
                    PUT_BYTE_PP(DE, acu);
                } while (--BC);
                acu += HIGH_REGISTER(AF);
                AF = (AF & ~0x3e) | (acu & 8) | ((acu & 2) << 4);
                break;

            case 0xb1:      /* CPIR */
                acu = HIGH_REGISTER(AF);
                BC &= ADDRMASK;
                if (BC == 0)
                    BC = 0x10000;
                do {
                    temp = RAM_PP(HL);
                    op = --BC != 0;
                    sum = acu - temp;
                } while (op && sum != 0);
                cbits = acu ^ temp ^ sum;
                AF = (AF & ~0xfe) | (sum & 0x80) | (!(sum & 0xff) << 6) |
                    (((sum - ((cbits & 16) >> 4)) & 2) << 4) |
                    (cbits & 16) | ((sum - ((cbits >> 4) & 1)) & 8) |
                    op << 2 | 2;
                if ((sum & 15) == 8 && (cbits & 16) != 0)
                    AF &= ~8;
                break;

            case 0xb2:      /* INIR */
                temp = HIGH_REGISTER(BC);
                if (temp == 0)
                    temp = 0x100;
                do {
                    acu = cpu_in(cpu, LOW_REGISTER(BC));
                    PUT_BYTE(HL, acu);
                    ++HL;
                } while (--temp);
                temp = HIGH_REGISTER(BC);
                SET_HIGH_REGISTER(BC, 0);
                INOUTFLAGS_ZERO((LOW_REGISTER(BC) + 1) & 0xff);
                break;

            case 0xb3:      /* OTIR */
                temp = HIGH_REGISTER(BC);
                if (temp == 0)
                    temp = 0x100;
                do {
                    acu = GET_BYTE(HL);
                    cpu_out(cpu, LOW_REGISTER(BC), acu);
                    ++HL;
                } while (--temp);
                temp = HIGH_REGISTER(BC);
                SET_HIGH_REGISTER(BC, 0);
                INOUTFLAGS_ZERO(LOW_REGISTER(HL));
                break;

            case 0xb8:      /* LDDR */
                BC &= ADDRMASK;
                if (BC == 0)
                    BC = 0x10000;
                do {
                    acu = RAM_MM(HL);
                    PUT_BYTE_MM(DE, acu);
                } while (--BC);
                acu += HIGH_REGISTER(AF);
                AF = (AF & ~0x3e) | (acu & 8) | ((acu & 2) << 4);
                break;

            case 0xb9:      /* CPDR */
                acu = HIGH_REGISTER(AF);
                BC &= ADDRMASK;
                if (BC == 0)
                    BC = 0x10000;
                do {
                    temp = RAM_MM(HL);
                    op = --BC != 0;
                    sum = acu - temp;
                } while (op && sum != 0);
                cbits = acu ^ temp ^ sum;
                AF = (AF & ~0xfe) | (sum & 0x80) | (!(sum & 0xff) << 6) |
                    (((sum - ((cbits & 16) >> 4)) & 2) << 4) |
                    (cbits & 16) | ((sum - ((cbits >> 4) & 1)) & 8) |
                    op << 2 | 2;
                if ((sum & 15) == 8 && (cbits & 16) != 0)
                    AF &= ~8;
                break;

            case 0xba:      /* INDR */
                temp = HIGH_REGISTER(BC);
                if (temp == 0)
                    temp = 0x100;
                do {
                    acu = cpu_in(cpu, LOW_REGISTER(BC));
                    PUT_BYTE(HL, acu);
                    --HL;
                } while (--temp);
                temp = HIGH_REGISTER(BC);
                SET_HIGH_REGISTER(BC, 0);
                INOUTFLAGS_ZERO((LOW_REGISTER(BC) - 1) & 0xff);
                break;

            case 0xbb:      /* OTDR */
                temp = HIGH_REGISTER(BC);
                if (temp == 0)
                    temp = 0x100;
                do {
                    acu = GET_BYTE(HL);
                    cpu_out(cpu, LOW_REGISTER(BC), acu);
                    --HL;
                } while (--temp);
                temp = HIGH_REGISTER(BC);
                SET_HIGH_REGISTER(BC, 0);
                INOUTFLAGS_ZERO(LOW_REGISTER(HL));
                break;

            default:    /* ignore ED and following byte */
                break;
            }
            break;

        case 0xee:      /* XOR nn */
            AF = xororTable[((AF >> 8) ^ RAM_PP(PC)) & 0xff];
            break;

        case 0xef:      /* RST 28H */
            PUSH(PC);
            PC = 0x28;
            break;

        case 0xf0:      /* RET P */
            if (!(TSTFLAG(S)))
                POP(PC);
            break;

        case 0xf1:      /* POP AF */
            POP(AF);
            break;

        case 0xf2:      /* JP P,nnnn */
            JPC(!TSTFLAG(S));
            break;

        case 0xf3:      /* DI */
            IFF = 0;
            break;

        case 0xf4:      /* CALL P,nnnn */
            CALLC(!TSTFLAG(S));
            break;

        case 0xf5:      /* PUSH AF */
            PUSH(AF);
            break;

        case 0xf6:      /* OR nn */
            AF = xororTable[((AF >> 8) | RAM_PP(PC)) & 0xff];
            break;

        case 0xf7:      /* RST 30H */
            PUSH(PC);
            PC = 0x30;
            break;

        case 0xf8:      /* RET M */
            if (TSTFLAG(S))
                POP(PC);
            break;

        case 0xf9:      /* LD SP,HL */
            SP = HL;
            break;

        case 0xfa:      /* JP M,nnnn */
            JPC(TSTFLAG(S));
            break;

        case 0xfb:      /* EI */
            IFF = 3;
            break;

        case 0xfc:      /* CALL M,nnnn */
            CALLC(TSTFLAG(S));
            break;

        case 0xfd:      /* FD prefix */
            switch (RAM_PP(PC)) {

            case 0x09:      /* ADD IY,BC */
                IY &= ADDRMASK;
                BC &= ADDRMASK;
                sum = IY + BC;
                AF = (AF & ~0x3b) | ((sum >> 8) & 0x28) | cbitsTable[(IY ^ BC ^ sum) >> 8];
                IY = sum;
                break;

            case 0x19:      /* ADD IY,DE */
                IY &= ADDRMASK;
                DE &= ADDRMASK;
                sum = IY + DE;
                AF = (AF & ~0x3b) | ((sum >> 8) & 0x28) | cbitsTable[(IY ^ DE ^ sum) >> 8];
                IY = sum;
                break;

            case 0x21:      /* LD IY,nnnn */
                IY = GET_WORD(PC);
                PC += 2;
                break;

            case 0x22:      /* LD (nnnn),IY */
                temp = GET_WORD(PC);
                PUT_WORD(temp, IY);
                PC += 2;
                break;

            case 0x23:      /* INC IY */
                ++IY;
                break;

            case 0x24:      /* INC IYH */
                IY += 0x100;
                AF = (AF & ~0xfe) | incZ80Table[HIGH_REGISTER(IY)];
                break;

            case 0x25:      /* DEC IYH */
                IY -= 0x100;
                AF = (AF & ~0xfe) | decZ80Table[HIGH_REGISTER(IY)];
                break;

            case 0x26:      /* LD IYH,nn */
                SET_HIGH_REGISTER(IY, RAM_PP(PC));
                break;

            case 0x29:      /* ADD IY,IY */
                IY &= ADDRMASK;
                sum = IY + IY;
                AF = (AF & ~0x3b) | cbitsDup16Table[sum >> 8];
                IY = sum;
                break;

            case 0x2a:      /* LD IY,(nnnn) */
                temp = GET_WORD(PC);
                IY = GET_WORD(temp);
                PC += 2;
                break;

            case 0x2b:      /* DEC IY */
                --IY;
                break;

            case 0x2c:      /* INC IYL */
                temp = LOW_REGISTER(IY) + 1;
                SET_LOW_REGISTER(IY, temp);
                AF = (AF & ~0xfe) | incZ80Table[temp];
                break;

            case 0x2d:      /* DEC IYL */
                temp = LOW_REGISTER(IY) - 1;
                SET_LOW_REGISTER(IY, temp);
                AF = (AF & ~0xfe) | decZ80Table[temp & 0xff];
                break;

            case 0x2e:      /* LD IYL,nn */
                SET_LOW_REGISTER(IY, RAM_PP(PC));
                break;

            case 0x34:      /* INC (IY+dd) */
                adr = IY + (int8_t)RAM_PP(PC);
                temp = GET_BYTE(adr) + 1;
                PUT_BYTE(adr, temp);
                AF = (AF & ~0xfe) | incZ80Table[temp];
                break;

            case 0x35:      /* DEC (IY+dd) */
                adr = IY + (int8_t)RAM_PP(PC);
                temp = GET_BYTE(adr) - 1;
                PUT_BYTE(adr, temp);
                AF = (AF & ~0xfe) | decZ80Table[temp & 0xff];
                break;

            case 0x36:      /* LD (IY+dd),nn */
                adr = IY + (int8_t)RAM_PP(PC);
                PUT_BYTE(adr, RAM_PP(PC));
                break;

            case 0x39:      /* ADD IY,SP */
                IY &= ADDRMASK;
                SP &= ADDRMASK;
                sum = IY + SP;
                AF = (AF & ~0x3b) | ((sum >> 8) & 0x28) | cbitsTable[(IY ^ SP ^ sum) >> 8];
                IY = sum;
                break;

            case 0x44:      /* LD B,IYH */
                SET_HIGH_REGISTER(BC, HIGH_REGISTER(IY));
                break;

            case 0x45:      /* LD B,IYL */
                SET_HIGH_REGISTER(BC, LOW_REGISTER(IY));
                break;

            case 0x46:      /* LD B,(IY+dd) */
                adr = IY + (int8_t)RAM_PP(PC);
                SET_HIGH_REGISTER(BC, GET_BYTE(adr));
                break;

            case 0x4c:      /* LD C,IYH */
                SET_LOW_REGISTER(BC, HIGH_REGISTER(IY));
                break;

            case 0x4d:      /* LD C,IYL */
                SET_LOW_REGISTER(BC, LOW_REGISTER(IY));
                break;

            case 0x4e:      /* LD C,(IY+dd) */
                adr = IY + (int8_t)RAM_PP(PC);
                SET_LOW_REGISTER(BC, GET_BYTE(adr));
                break;

            case 0x54:      /* LD D,IYH */
                SET_HIGH_REGISTER(DE, HIGH_REGISTER(IY));
                break;

            case 0x55:      /* LD D,IYL */
                SET_HIGH_REGISTER(DE, LOW_REGISTER(IY));
                break;

            case 0x56:      /* LD D,(IY+dd) */
                adr = IY + (int8_t)RAM_PP(PC);
                SET_HIGH_REGISTER(DE, GET_BYTE(adr));
                break;

            case 0x5c:      /* LD E,IYH */
                SET_LOW_REGISTER(DE, HIGH_REGISTER(IY));
                break;

            case 0x5d:      /* LD E,IYL */
                SET_LOW_REGISTER(DE, LOW_REGISTER(IY));
                break;

            case 0x5e:      /* LD E,(IY+dd) */
                adr = IY + (int8_t)RAM_PP(PC);
                SET_LOW_REGISTER(DE, GET_BYTE(adr));
                break;

            case 0x60:      /* LD IYH,B */
                SET_HIGH_REGISTER(IY, HIGH_REGISTER(BC));
                break;

            case 0x61:      /* LD IYH,C */
                SET_HIGH_REGISTER(IY, LOW_REGISTER(BC));
                break;

            case 0x62:      /* LD IYH,D */
                SET_HIGH_REGISTER(IY, HIGH_REGISTER(DE));
                break;

            case 0x63:      /* LD IYH,E */
                SET_HIGH_REGISTER(IY, LOW_REGISTER(DE));
                break;

            case 0x64:      /* LD IYH,IYH */
                break;

            case 0x65:      /* LD IYH,IYL */
                SET_HIGH_REGISTER(IY, LOW_REGISTER(IY));
                break;

            case 0x66:      /* LD H,(IY+dd) */
                adr = IY + (int8_t)RAM_PP(PC);
                SET_HIGH_REGISTER(HL, GET_BYTE(adr));
                break;

            case 0x67:      /* LD IYH,A */
                SET_HIGH_REGISTER(IY, HIGH_REGISTER(AF));
                break;

            case 0x68:      /* LD IYL,B */
                SET_LOW_REGISTER(IY, HIGH_REGISTER(BC));
                break;

            case 0x69:      /* LD IYL,C */
                SET_LOW_REGISTER(IY, LOW_REGISTER(BC));
                break;

            case 0x6a:      /* LD IYL,D */
                SET_LOW_REGISTER(IY, HIGH_REGISTER(DE));
                break;

            case 0x6b:      /* LD IYL,E */
                SET_LOW_REGISTER(IY, LOW_REGISTER(DE));
                break;

            case 0x6c:      /* LD IYL,IYH */
                SET_LOW_REGISTER(IY, HIGH_REGISTER(IY));
                break;

            case 0x6d:      /* LD IYL,IYL */
                break;

            case 0x6e:      /* LD L,(IY+dd) */
                adr = IY + (int8_t)RAM_PP(PC);
                SET_LOW_REGISTER(HL, GET_BYTE(adr));
                break;

            case 0x6f:      /* LD IYL,A */
                SET_LOW_REGISTER(IY, HIGH_REGISTER(AF));
                break;

            case 0x70:      /* LD (IY+dd),B */
                adr = IY + (int8_t)RAM_PP(PC);
                PUT_BYTE(adr, HIGH_REGISTER(BC));
                break;

            case 0x71:      /* LD (IY+dd),C */
                adr = IY + (int8_t)RAM_PP(PC);
                PUT_BYTE(adr, LOW_REGISTER(BC));
                break;

            case 0x72:      /* LD (IY+dd),D */
                adr = IY + (int8_t)RAM_PP(PC);
                PUT_BYTE(adr, HIGH_REGISTER(DE));
                break;

            case 0x73:      /* LD (IY+dd),E */
                adr = IY + (int8_t)RAM_PP(PC);
                PUT_BYTE(adr, LOW_REGISTER(DE));
                break;

            case 0x74:      /* LD (IY+dd),H */
                adr = IY + (int8_t)RAM_PP(PC);
                PUT_BYTE(adr, HIGH_REGISTER(HL));
                break;

            case 0x75:      /* LD (IY+dd),L */
                adr = IY + (int8_t)RAM_PP(PC);
                PUT_BYTE(adr, LOW_REGISTER(HL));
                break;

            case 0x77:      /* LD (IY+dd),A */
                adr = IY + (int8_t)RAM_PP(PC);
                PUT_BYTE(adr, HIGH_REGISTER(AF));
                break;

            case 0x7c:      /* LD A,IYH */
                SET_HIGH_REGISTER(AF, HIGH_REGISTER(IY));
                break;

            case 0x7d:      /* LD A,IYL */
                SET_HIGH_REGISTER(AF, LOW_REGISTER(IY));
                break;

            case 0x7e:      /* LD A,(IY+dd) */
                adr = IY + (int8_t)RAM_PP(PC);
                SET_HIGH_REGISTER(AF, GET_BYTE(adr));
                break;

            case 0x84:      /* ADD A,IYH */
                temp = HIGH_REGISTER(IY);
                acu = HIGH_REGISTER(AF);
                sum = acu + temp;
                AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
                break;

            case 0x85:      /* ADD A,IYL */
                temp = LOW_REGISTER(IY);
                acu = HIGH_REGISTER(AF);
                sum = acu + temp;
                AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
                break;

            case 0x86:      /* ADD A,(IY+dd) */
                adr = IY + (int8_t)RAM_PP(PC);
                temp = GET_BYTE(adr);
                acu = HIGH_REGISTER(AF);
                sum = acu + temp;
                AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
                break;

            case 0x8c:      /* ADC A,IYH */
                temp = HIGH_REGISTER(IY);
                acu = HIGH_REGISTER(AF);
                sum = acu + temp + TSTFLAG(C);
                AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
                break;

            case 0x8d:      /* ADC A,IYL */
                temp = LOW_REGISTER(IY);
                acu = HIGH_REGISTER(AF);
                sum = acu + temp + TSTFLAG(C);
                AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
                break;

            case 0x8e:      /* ADC A,(IY+dd) */
                adr = IY + (int8_t)RAM_PP(PC);
                temp = GET_BYTE(adr);
                acu = HIGH_REGISTER(AF);
                sum = acu + temp + TSTFLAG(C);
                AF = addTable[sum] | cbitsZ80Table[acu ^ temp ^ sum];
                break;

            case 0x96:      /* SUB (IY+dd) */
                adr = IY + (int8_t)RAM_PP(PC);
                temp = GET_BYTE(adr);
                acu = HIGH_REGISTER(AF);
                sum = acu - temp;
                AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
                break;

            case 0x94:      /* SUB IYH */
                SETFLAG(C, 0);/* fall through, a bit less efficient but smaller code */

            case 0x9c:      /* SBC A,IYH */
                temp = HIGH_REGISTER(IY);
                acu = HIGH_REGISTER(AF);
                sum = acu - temp - TSTFLAG(C);
                AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
                break;

            case 0x95:      /* SUB IYL */
                SETFLAG(C, 0);/* fall through, a bit less efficient but smaller code */

            case 0x9d:      /* SBC A,IYL */
                temp = LOW_REGISTER(IY);
                acu = HIGH_REGISTER(AF);
                sum = acu - temp - TSTFLAG(C);
                AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
                break;

            case 0x9e:      /* SBC A,(IY+dd) */
                adr = IY + (int8_t)RAM_PP(PC);
                temp = GET_BYTE(adr);
                acu = HIGH_REGISTER(AF);
                sum = acu - temp - TSTFLAG(C);
                AF = addTable[sum & 0xff] | cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
                break;

            case 0xa4:      /* AND IYH */
                AF = andTable[((AF & IY) >> 8) & 0xff];
                break;

            case 0xa5:      /* AND IYL */
                AF = andTable[((AF >> 8) & IY) & 0xff];
                break;

            case 0xa6:      /* AND (IY+dd) */
                adr = IY + (int8_t)RAM_PP(PC);
                AF = andTable[((AF >> 8) & GET_BYTE(adr)) & 0xff];
                break;

            case 0xac:      /* XOR IYH */
                AF = xororTable[((AF ^ IY) >> 8) & 0xff];
                break;

            case 0xad:      /* XOR IYL */
                AF = xororTable[((AF >> 8) ^ IY) & 0xff];
                break;

            case 0xae:      /* XOR (IY+dd) */
                adr = IY + (int8_t)RAM_PP(PC);
                AF = xororTable[((AF >> 8) ^ GET_BYTE(adr)) & 0xff];
                break;

            case 0xb4:      /* OR IYH */
                AF = xororTable[((AF | IY) >> 8) & 0xff];
                break;

            case 0xb5:      /* OR IYL */
                AF = xororTable[((AF >> 8) | IY) & 0xff];
                break;

            case 0xb6:      /* OR (IY+dd) */
                adr = IY + (int8_t)RAM_PP(PC);
                AF = xororTable[((AF >> 8) | GET_BYTE(adr)) & 0xff];
                break;

            case 0xbc:      /* CP IYH */
                temp = HIGH_REGISTER(IY);
                AF = (AF & ~0x28) | (temp & 0x28);
                acu = HIGH_REGISTER(AF);
                sum = acu - temp;
                AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
                    cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
                break;

            case 0xbd:      /* CP IYL */
                temp = LOW_REGISTER(IY);
                AF = (AF & ~0x28) | (temp & 0x28);
                acu = HIGH_REGISTER(AF);
                sum = acu - temp;
                AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
                    cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
                break;

            case 0xbe:      /* CP (IY+dd) */
                adr = IY + (int8_t)RAM_PP(PC);
                temp = GET_BYTE(adr);
                AF = (AF & ~0x28) | (temp & 0x28);
                acu = HIGH_REGISTER(AF);
                sum = acu - temp;
                AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
                    cbits2Z80Table[(acu ^ temp ^ sum) & 0x1ff];
                break;

            case 0xcb:      /* CB prefix */
                adr = IY + (int8_t)RAM_PP(PC);
                switch ((op = GET_BYTE(PC)) & 7) {

                case 0:
                    ++PC;
                    acu = HIGH_REGISTER(BC);
                    break;

                case 1:
                    ++PC;
                    acu = LOW_REGISTER(BC);
                    break;

                case 2:
                    ++PC;
                    acu = HIGH_REGISTER(DE);
                    break;

                case 3:
                    ++PC;
                    acu = LOW_REGISTER(DE);
                    break;

                case 4:
                    ++PC;
                    acu = HIGH_REGISTER(HL);
                    break;

                case 5:
                    ++PC;
                    acu = LOW_REGISTER(HL);
                    break;

                case 6:
                    ++PC;
                    acu = GET_BYTE(adr);
                    break;

                case 7:
                    ++PC;
                    acu = HIGH_REGISTER(AF);
                    break;
                }
                switch (op & 0xc0) {

                case 0x00:  /* shift/rotate */
                    switch (op & 0x38) {

                    case 0x00:/* RLC */
                        temp = (acu << 1) | (acu >> 7);
                        cbits = temp & 1;
                        goto cbshflg3;

                    case 0x08:/* RRC */
                        temp = (acu >> 1) | (acu << 7);
                        cbits = temp & 0x80;
                        goto cbshflg3;

                    case 0x10:/* RL */
                        temp = (acu << 1) | TSTFLAG(C);
                        cbits = acu & 0x80;
                        goto cbshflg3;

                    case 0x18:/* RR */
                        temp = (acu >> 1) | (TSTFLAG(C) << 7);
                        cbits = acu & 1;
                        goto cbshflg3;

                    case 0x20:/* SLA */
                        temp = acu << 1;
                        cbits = acu & 0x80;
                        goto cbshflg3;

                    case 0x28:/* SRA */
                        temp = (acu >> 1) | (acu & 0x80);
                        cbits = acu & 1;
                        goto cbshflg3;

                    case 0x30:/* SLIA */
                        temp = (acu << 1) | 1;
                        cbits = acu & 0x80;
                        goto cbshflg3;

                    case 0x38:/* SRL */
                        temp = acu >> 1;
                        cbits = acu & 1;
                    cbshflg3:
                        AF = (AF & ~0xff) | rotateShiftTable[temp & 0xff] | !!cbits;
                    }
                    break;

                case 0x40:  /* BIT */
                    if (acu & (1 << ((op >> 3) & 7)))
                        AF = (AF & ~0xfe) | 0x10 | (((op & 0x38) == 0x38) << 7);
                    else
                        AF = (AF & ~0xfe) | 0x54;
                    if ((op & 7) != 6)
                        AF |= (acu & 0x28);
                    temp = acu;
                    break;

                case 0x80:  /* RES */
                    temp = acu & ~(1 << ((op >> 3) & 7));
                    break;

                case 0xc0:  /* SET */
                    temp = acu | (1 << ((op >> 3) & 7));
                    break;
                }
                switch (op & 7) {

                case 0:
                    SET_HIGH_REGISTER(BC, temp);
                    break;

                case 1:
                    SET_LOW_REGISTER(BC, temp);
                    break;

                case 2:
                    SET_HIGH_REGISTER(DE, temp);
                    break;

                case 3:
                    SET_LOW_REGISTER(DE, temp);
                    break;

                case 4:
                    SET_HIGH_REGISTER(HL, temp);
                    break;

                case 5:
                    SET_LOW_REGISTER(HL, temp);
                    break;

                case 6:
                    PUT_BYTE(adr, temp);
                    break;

                case 7:
                    SET_HIGH_REGISTER(AF, temp);
                    break;
                }
                break;

            case 0xe1:      /* POP IY */
                POP(IY);
                break;

            case 0xe3:      /* EX (SP),IY */
                temp = IY;
                POP(IY);
                PUSH(temp);
                break;

            case 0xe5:      /* PUSH IY */
                PUSH(IY);
                break;

            case 0xe9:      /* JP (IY) */
                PC = IY;
                break;

            case 0xf9:      /* LD SP,IY */
                SP = IY;
                break;

            default:            /* ignore FD */
                --PC;
            }
            break;

        case 0xfe:      /* CP nn */
            temp = RAM_PP(PC);
            AF = (AF & ~0x28) | (temp & 0x28);
            acu = HIGH_REGISTER(AF);
            sum = acu - temp;
            cbits = acu ^ temp ^ sum;
            AF = (AF & ~0xff) | cpTable[sum & 0xff] | (temp & 0x28) |
                (SET_PV) | cbits2Table[cbits & 0x1ff];
            break;

        case 0xff:      /* RST 38H */
            PUSH(PC);
            PC = 0x38;
        }
    }
end_decode:
    ;
}

void z80_destroy(z80 *cpu) {
    free(cpu);
    _console_reset();
}