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altairz80_cpu_nommu.c
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/* altairz80_cpu_opt.c: MITS Altair CPU (8080 and Z80)
Copyright (c) 2002-2024, Peter Schorn
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
PETER SCHORN 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.
Except as contained in this notice, the name of Peter Schorn shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from Peter Schorn.
Based on work by Charles E Owen (c) 1997
Code for Z80 CPU from Frank D. Cringle ((c) 1995 under GNU license)
Contributions from Thomas Eberhardt
- Fixed H flag handling for 8080 CPU
- Corrected parity flag computation for Z80 CPU for INI, OUTI, IND, OUTD,
INIR, OTIR, INDR and OTDR instructions
*/
#include "altairz80_defs.h"
#define FLAG_C 1
#define FLAG_N 2
#define FLAG_P 4
#define FLAG_H 16
#define FLAG_Z 64
#define FLAG_S 128
#define SETFLAG(f,c) AF = (c) ? AF | FLAG_ ## f : AF & ~FLAG_ ## f
#define TSTFLAG(f) ((AF & FLAG_ ## f) != 0)
#define LOW_DIGIT(x) ((x) & 0xf)
#define HIGH_DIGIT(x) (((x) >> 4) & 0xf)
#define LOW_REGISTER(x) ((x) & 0xff)
#define HIGH_REGISTER(x) (((x) >> 8) & 0xff)
#define SET_LOW_REGISTER(x, v) x = (((x) & 0xff00) | ((v) & 0xff))
#define SET_HIGH_REGISTER(x, v) x = (((x) & 0xff) | (((v) & 0xff) << 8))
#define PARITY(x) parityTable[(x) & 0xff]
/* SET_PV and SET_PV2 are used to provide correct PARITY flag semantics for the 8080 in cases
where the Z80 uses the overflow flag
*/
#define SET_PVS(s) ((chiptype == CHIP_TYPE_Z80) ? (((cbits >> 6) ^ (cbits >> 5)) & 4) : (PARITY(s)))
#define SET_PV (SET_PVS(sum))
#define SET_PV2(x) ((chiptype == CHIP_TYPE_Z80) ? (((temp == (x)) << 2)) : (PARITY(temp)))
/* CHECK_CPU_8080 must be invoked whenever a Z80 only instruction is executed
In case a Z80 instruction is executed on an 8080 there are two cases:
1) Trapping is enabled: execution stops
2) Trapping is not enabled: decoding continues with the next byte
*/
#define CHECK_CPU_8080 \
if (chiptype == CHIP_TYPE_8080) { \
if (cpu_unit.flags & UNIT_CPU_OPSTOP) { \
reason = STOP_OPCODE; \
goto end_decode; \
} \
else continue; \
}
/* CHECK_CPU_Z80 must be invoked whenever a non Z80 instruction is executed */
#define CHECK_CPU_Z80 \
if (cpu_unit.flags & UNIT_CPU_OPSTOP) { \
reason = STOP_OPCODE; \
goto end_decode; \
}
#define POP(x) { \
register uint32 y = RAM_PP(SP); \
x = y + (RAM_PP(SP) << 8); \
}
#define JPC(cond) { \
if (cond) { \
PC = GET_WORD(PC); \
} else { \
PC += 2; \
} \
}
#define CALLC(cond) { \
if (cond) { \
register uint32 adrr = GET_WORD(PC); \
PUSH(PC + 2); \
PC = adrr; \
} else { \
PC += 2; \
} \
}
/* increase R by val */
#define INCR(val) IR_S = (IR_S & ~0x7f) | ((IR_S + (val)) & 0x7f)
/* function prototypes */
t_stat sim_instr_nommu(void);
extern void out(const uint32 Port, const uint32 Value);
extern uint32 in(const uint32 Port);
extern UNIT cpu_unit;
extern uint32 PCX; /* external view of PC */
extern int32 AF_S; /* AF register */
extern int32 BC_S; /* BC register */
extern int32 DE_S; /* DE register */
extern int32 HL_S; /* HL register */
extern int32 IX_S; /* IX register */
extern int32 IY_S; /* IY register */
extern int32 PC_S; /* program counter */
extern int32 SP_S; /* SP register */
extern int32 AF1_S; /* alternate AF register */
extern int32 BC1_S; /* alternate BC register */
extern int32 DE1_S; /* alternate DE register */
extern int32 HL1_S; /* alternate HL register */
extern int32 IFF_S; /* Interrupt Flip Flop */
extern int32 IR_S; /* Interrupt (upper) / Refresh (lower) register */
/* 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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,
};
/* Memory management */
uint8 MOPT[MAXBANKSIZE]; /* RAM which is present */
static uint8 GET_BYTE(register uint32 Addr) {
return MOPT[Addr & ADDRMASK];
}
static void PUT_BYTE(register uint32 Addr, register uint32 Value) {
MOPT[Addr & ADDRMASK] = Value;
}
static void PUT_WORD(register uint32 Addr, register uint32 Value) {
MOPT[Addr & ADDRMASK] = Value;
MOPT[(Addr + 1) & ADDRMASK] = Value >> 8;
}
static uint16 GET_WORD(register uint32 a) {
return GET_BYTE(a) | (GET_BYTE(a + 1) << 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
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_ZERO(x) \
AF = (AF & 0xff00) | (FLAG_Z) | /* SF, YF, XF, ZF */ \
((acu & 0x80) >> 6) | /* NF */ \
((acu + (x)) > 0xff ? (FLAG_C | FLAG_H) : 0) | /* CF, HF */ \
parityTable[((acu + (x)) & 7)] /* PF */
#define INOUTFLAGS_NONZERO(x) \
AF = (AF & 0xff00) | (HIGH_REGISTER(BC) & 0xa8) | \
((HIGH_REGISTER(BC) == 0) << 6) | /* SF, YF, XF, ZF */ \
((acu & 0x80) >> 6) | /* NF */ \
((acu + (x)) > 0xff ? (FLAG_C | FLAG_H) : 0) | /* CF, HF */ \
parityTable[((acu + (x)) & 7) ^ HIGH_REGISTER(BC)] /* PF */
t_stat sim_instr_nommu(void) {
int32 reason = SCPE_OK;
register uint32 AF;
register uint32 BC;
register uint32 DE;
register uint32 HL;
register uint32 PC;