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op_cb.c
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op_cb.c
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/*====================================================================
opcodes_cb.c -> This file executes the CB PREFIX opcodes.
When you find the CB opcode, it means that you must fetch another
byte from memory and treat it as a new opcode with different
meaning than the single-byte opcodes. This is a common way to extend
the number of opcodes (8 bits of instruction word = just 256 opcodes)
and it's called an OPCODE PREFIX (now we have another 256 new opcodes
by using this trick).
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
Copyright (c) 2000 Santiago Romero Iglesias.
Email: [email protected]
=====================================================================*/
/* 8 clock cycles minimum = CB opcode = 4+4 */
opcode = Z80ReadMem (r_PC);
r_PC++;
switch (opcode)
{
case RLC_B:
RLC (r_B);
AddCycles (4 + 4);
break;
case RLC_C:
RLC (r_C);
AddCycles (4 + 4);
break;
case RLC_D:
RLC (r_D);
AddCycles (4 + 4);
break;
case RLC_E:
RLC (r_E);
AddCycles (4 + 4);
break;
case RLC_H:
RLC (r_H);
AddCycles (4 + 4);
break;
case RLC_L:
RLC (r_L);
AddCycles (4 + 4);
break;
case RLC_xHL:
r_meml = Z80ReadMem (r_HL);
RLC (r_meml);
Z80WriteMem (r_HL, r_meml, regs);
AddCycles (4 + 4 + 3 + 3 + 1);
break;
case RLC_A:
RLC (r_A);
AddCycles (4 + 4);
break;
case RRC_B:
RRC (r_B);
AddCycles (4 + 4);
break;
case RRC_C:
RRC (r_C);
AddCycles (4 + 4);
break;
case RRC_D:
RRC (r_D);
AddCycles (4 + 4);
break;
case RRC_E:
RRC (r_E);
AddCycles (4 + 4);
break;
case RRC_H:
RRC (r_H);
AddCycles (4 + 4);
break;
case RRC_L:
RRC (r_L);
AddCycles (4 + 4);
break;
case RRC_xHL:
r_meml = Z80ReadMem (r_HL);
RRC (r_meml);
Z80WriteMem (r_HL, r_meml, regs);
AddCycles (4 + 4 + 3 + 3 + 1);
break;
case RRC_A:
RRC (r_A);
AddCycles (4 + 4);
break;
case RL_B:
RL (r_B);
AddCycles (4 + 4);
break;
case RL_C:
RL (r_C);
AddCycles (4 + 4);
break;
case RL_D:
RL (r_D);
AddCycles (4 + 4);
break;
case RL_E:
RL (r_E);
AddCycles (4 + 4);
break;
case RL_H:
RL (r_H);
AddCycles (4 + 4);
break;
case RL_L:
RL (r_L);
AddCycles (4 + 4);
break;
case RL_xHL:
r_meml = Z80ReadMem (r_HL);
RL (r_meml);
Z80WriteMem (r_HL, r_meml, regs);
AddCycles (4 + 4 + 3 + 3 + 1);
break;
case RL_A:
RL (r_A);
AddCycles (4 + 4);
break;
case RR_B:
RR (r_B);
AddCycles (4 + 4);
break;
case RR_C:
RR (r_C);
AddCycles (4 + 4);
break;
case RR_D:
RR (r_D);
AddCycles (4 + 4);
break;
case RR_E:
RR (r_E);
AddCycles (4 + 4);
break;
case RR_H:
RR (r_H);
AddCycles (4 + 4);
break;
case RR_L:
RR (r_L);
AddCycles (4 + 4);
break;
case RR_xHL:
r_meml = Z80ReadMem (r_HL);
RR (r_meml);
Z80WriteMem (r_HL, r_meml, regs);
AddCycles (4 + 4 + 3 + 3 + 1);
break;
case RR_A:
RR (r_A);
AddCycles (4 + 4);
break;
case SLA_B:
SLA (r_B);
AddCycles (4 + 4);
break;
case SLA_C:
SLA (r_C);
AddCycles (4 + 4);
break;
case SLA_D:
SLA (r_D);
AddCycles (4 + 4);
break;
case SLA_E:
SLA (r_E);
AddCycles (4 + 4);
break;
case SLA_H:
SLA (r_H);
AddCycles (4 + 4);
break;
case SLA_L:
SLA (r_L);
AddCycles (4 + 4);
break;
case SLA_xHL:
r_meml = Z80ReadMem (r_HL);
SLA (r_meml);
Z80WriteMem (r_HL, r_meml, regs);
AddCycles (4 + 4 + 3 + 3 + 1);
break;
case SLA_A:
SLA (r_A);
AddCycles (4 + 4);
break;
case SRA_B:
SRA (r_B);
AddCycles (4 + 4);
break;
case SRA_C:
SRA (r_C);
AddCycles (4 + 4);
break;
case SRA_D:
SRA (r_D);
AddCycles (4 + 4);
break;
case SRA_E:
SRA (r_E);
AddCycles (4 + 4);
break;
case SRA_H:
SRA (r_H);
AddCycles (4 + 4);
break;
case SRA_L:
SRA (r_L);
AddCycles (4 + 4);
break;
case SRA_xHL:
r_meml = Z80ReadMem (r_HL);
SRA (r_meml);
Z80WriteMem (r_HL, r_meml, regs);
AddCycles (4 + 4 + 3 + 3 + 1);
break;
case SRA_A:
SRA (r_A);
AddCycles (4 + 4);
break;
case SLL_B:
SLL (r_B);
AddCycles (4 + 4);
break;
case SLL_C:
SLL (r_C);
AddCycles (4 + 4);
break;
case SLL_D:
SLL (r_D);
AddCycles (4 + 4);
break;
case SLL_E:
SLL (r_E);
AddCycles (4 + 4);
break;
case SLL_H:
SLL (r_H);
AddCycles (4 + 4);
break;
case SLL_L:
SLL (r_L);
AddCycles (4 + 4);
break;
case SLL_xHL:
r_meml = Z80ReadMem (r_HL);
SLL (r_meml);
Z80WriteMem (r_HL, r_meml, regs);
AddCycles (4 + 4 + 3 + 3 + 1);
break;
case SLL_A:
SLL (r_A);
AddCycles (4 + 4);
break;
case SRL_B:
SRL (r_B);
AddCycles (4 + 4);
break;
case SRL_C:
SRL (r_C);
AddCycles (4 + 4);
break;
case SRL_D:
SRL (r_D);
AddCycles (4 + 4);
break;
case SRL_E:
SRL (r_E);
AddCycles (4 + 4);
break;
case SRL_H:
SRL (r_H);
AddCycles (4 + 4);
break;
case SRL_L:
SRL (r_L);
AddCycles (4 + 4);
break;
case SRL_xHL:
r_meml = Z80ReadMem (r_HL);
SRL (r_meml);
Z80WriteMem (r_HL, r_meml, regs);
AddCycles (4 + 4 + 3 + 3 + 1);
break;
case SRL_A:
SRL (r_A);
AddCycles (4 + 4);
break;
case BIT_0_B:
BIT_BIT (0, r_B);
AddCycles (4 + 4);
break;
case BIT_0_C:
BIT_BIT (0, r_C);
AddCycles (4 + 4);
break;
case BIT_0_D:
BIT_BIT (0, r_D);
AddCycles (4 + 4);
break;
case BIT_0_E:
BIT_BIT (0, r_E);
AddCycles (4 + 4);
break;
case BIT_0_H:
BIT_BIT (0, r_H);
AddCycles (4 + 4);
break;
case BIT_0_L:
BIT_BIT (0, r_L);
AddCycles (4 + 4);
break;
case BIT_0_xHL:
BIT_mem_BIT (0, r_HL);
AddCycles (12);
break;
case BIT_0_A:
BIT_BIT (0, r_A);
AddCycles (4 + 4);
break;
case BIT_1_B:
BIT_BIT (1, r_B);
AddCycles (4 + 4);
break;
case BIT_1_C:
BIT_BIT (1, r_C);
AddCycles (4 + 4);
break;
case BIT_1_D:
BIT_BIT (1, r_D);
AddCycles (4 + 4);
break;
case BIT_1_E:
BIT_BIT (1, r_E);
AddCycles (4 + 4);
break;
case BIT_1_H:
BIT_BIT (1, r_H);
AddCycles (4 + 4);
break;
case BIT_1_L:
BIT_BIT (1, r_L);
AddCycles (4 + 4);
break;
case BIT_1_xHL:
BIT_mem_BIT (1, r_HL);
AddCycles (12);
break;
case BIT_1_A:
BIT_BIT (1, r_A);
AddCycles (4 + 4);
break;
case BIT_2_B:
BIT_BIT (2, r_B);
AddCycles (4 + 4);
break;
case BIT_2_C:
BIT_BIT (2, r_C);
AddCycles (4 + 4);
break;
case BIT_2_D:
BIT_BIT (2, r_D);
AddCycles (4 + 4);
break;
case BIT_2_E:
BIT_BIT (2, r_E);
AddCycles (4 + 4);
break;
case BIT_2_H:
BIT_BIT (2, r_H);
AddCycles (4 + 4);
break;
case BIT_2_L:
BIT_BIT (2, r_L);
AddCycles (4 + 4);
break;
case BIT_2_xHL:
BIT_mem_BIT (2, r_HL);
AddCycles (12);
break;
case BIT_2_A:
BIT_BIT (2, r_A);
AddCycles (4 + 4);
break;
case BIT_3_B:
BIT_BIT (3, r_B);
AddCycles (4 + 4);
break;
case BIT_3_C:
BIT_BIT (3, r_C);
AddCycles (4 + 4);
break;
case BIT_3_D:
BIT_BIT (3, r_D);
AddCycles (4 + 4);
break;
case BIT_3_E:
BIT_BIT (3, r_E);
AddCycles (4 + 4);
break;
case BIT_3_H:
BIT_BIT (3, r_H);
AddCycles (4 + 4);
break;
case BIT_3_L:
BIT_BIT (3, r_L);
AddCycles (4 + 4);
break;
case BIT_3_xHL:
BIT_mem_BIT (3, r_HL);
AddCycles (12);
break;
case BIT_3_A:
BIT_BIT (3, r_A);
AddCycles (4 + 4);
break;
case BIT_4_B:
BIT_BIT (4, r_B);
AddCycles (4 + 4);
break;
case BIT_4_C:
BIT_BIT (4, r_C);
AddCycles (4 + 4);
break;
case BIT_4_D:
BIT_BIT (4, r_D);
AddCycles (4 + 4);
break;
case BIT_4_E:
BIT_BIT (4, r_E);
AddCycles (4 + 4);
break;
case BIT_4_H:
BIT_BIT (4, r_H);
AddCycles (4 + 4);
break;
case BIT_4_L:
BIT_BIT (4, r_L);
AddCycles (4 + 4);
break;
case BIT_4_xHL:
BIT_mem_BIT (4, r_HL);
AddCycles (12);
break;
case BIT_4_A:
BIT_BIT (4, r_A);
AddCycles (4 + 4);
break;
case BIT_5_B:
BIT_BIT (5, r_B);
AddCycles (4 + 4);
break;
case BIT_5_C:
BIT_BIT (5, r_C);
AddCycles (4 + 4);
break;
case BIT_5_D:
BIT_BIT (5, r_D);
AddCycles (4 + 4);
break;
case BIT_5_E:
BIT_BIT (5, r_E);
AddCycles (4 + 4);
break;
case BIT_5_H:
BIT_BIT (5, r_H);
AddCycles (4 + 4);
break;
case BIT_5_L:
BIT_BIT (5, r_L);
AddCycles (4 + 4);
break;
case BIT_5_xHL:
BIT_mem_BIT (5, r_HL);
AddCycles (12);
break;
case BIT_5_A:
BIT_BIT (5, r_A);
AddCycles (4 + 4);
break;
case BIT_6_B:
BIT_BIT (6, r_B);
AddCycles (4 + 4);
break;
case BIT_6_C:
BIT_BIT (6, r_C);
AddCycles (4 + 4);
break;
case BIT_6_D:
BIT_BIT (6, r_D);
AddCycles (4 + 4);
break;
case BIT_6_E:
BIT_BIT (6, r_E);
AddCycles (4 + 4);
break;
case BIT_6_H:
BIT_BIT (6, r_H);
AddCycles (4 + 4);
break;
case BIT_6_L:
BIT_BIT (6, r_L);
AddCycles (4 + 4);
break;
case BIT_6_xHL:
BIT_mem_BIT (6, r_HL);
AddCycles (12);
break;
case BIT_6_A:
BIT_BIT (6, r_A);
AddCycles (4 + 4);
break;
case BIT_7_B:
BIT_BIT7 (r_B);
AddCycles (4 + 4);
break;
case BIT_7_C:
BIT_BIT7 (r_C);
AddCycles (4 + 4);
break;
case BIT_7_D:
BIT_BIT7 (r_D);
AddCycles (4 + 4);
break;
case BIT_7_E:
BIT_BIT7 (r_E);
AddCycles (4 + 4);
break;
case BIT_7_H:
BIT_BIT7 (r_H);
AddCycles (4 + 4);
break;
case BIT_7_L:
BIT_BIT7 (r_L);
AddCycles (4 + 4);
break;
case BIT_7_xHL:
BIT_mem_BIT7 (r_HL);
AddCycles (12);
break;
case BIT_7_A:
BIT_BIT7 (r_A);
AddCycles (4 + 4);
break;
case RES_0_B:
BIT_RES (0, r_B);
AddCycles (4 + 4);
break;
case RES_0_C:
BIT_RES (0, r_C);
AddCycles (4 + 4);
break;
case RES_0_D:
BIT_RES (0, r_D);
AddCycles (4 + 4);
break;
case RES_0_E:
BIT_RES (0, r_E);
AddCycles (4 + 4);
break;
case RES_0_H:
BIT_RES (0, r_H);
AddCycles (4 + 4);
break;
case RES_0_L:
BIT_RES (0, r_L);
AddCycles (4 + 4);
break;
case RES_0_xHL:
BIT_mem_RES (0, r_HL);
AddCycles (4 + 4 + 7);
break;
case RES_0_A:
BIT_RES (0, r_A);
AddCycles (4 + 4);
break;
case RES_1_B:
BIT_RES (1, r_B);
AddCycles (4 + 4);
break;
case RES_1_C:
BIT_RES (1, r_C);
AddCycles (4 + 4);
break;
case RES_1_D:
BIT_RES (1, r_D);
AddCycles (4 + 4);
break;
case RES_1_E:
BIT_RES (1, r_E);
AddCycles (4 + 4);
break;
case RES_1_H:
BIT_RES (1, r_H);
AddCycles (4 + 4);
break;
case RES_1_L:
BIT_RES (1, r_L);
AddCycles (4 + 4);
break;
case RES_1_xHL:
BIT_mem_RES (1, r_HL);
AddCycles (4 + 4 + 7);
break;
case RES_1_A:
BIT_RES (1, r_A);
AddCycles (4 + 4);
break;
case RES_2_B:
BIT_RES (2, r_B);
AddCycles (4 + 4);
break;
case RES_2_C:
BIT_RES (2, r_C);
AddCycles (4 + 4);
break;
case RES_2_D:
BIT_RES (2, r_D);
AddCycles (4 + 4);
break;
case RES_2_E:
BIT_RES (2, r_E);
AddCycles (4 + 4);
break;
case RES_2_H:
BIT_RES (2, r_H);
AddCycles (4 + 4);
break;
case RES_2_L:
BIT_RES (2, r_L);
AddCycles (4 + 4);
break;
case RES_2_xHL:
BIT_mem_RES (2, r_HL);
AddCycles (4 + 4 + 7);
break;
case RES_2_A:
BIT_RES (2, r_A);
AddCycles (4 + 4);
break;
case RES_3_B:
BIT_RES (3, r_B);
AddCycles (4 + 4);
break;
case RES_3_C:
BIT_RES (3, r_C);
AddCycles (4 + 4);
break;
case RES_3_D:
BIT_RES (3, r_D);
AddCycles (4 + 4);
break;
case RES_3_E:
BIT_RES (3, r_E);
AddCycles (4 + 4);
break;
case RES_3_H:
BIT_RES (3, r_H);
AddCycles (4 + 4);
break;
case RES_3_L:
BIT_RES (3, r_L);
AddCycles (4 + 4);
break;
case RES_3_xHL:
BIT_mem_RES (3, r_HL);
AddCycles (4 + 4 + 7);
break;
case RES_3_A:
BIT_RES (3, r_A);
AddCycles (4 + 4);
break;
case RES_4_B:
BIT_RES (4, r_B);
AddCycles (4 + 4);
break;
case RES_4_C:
BIT_RES (4, r_C);
AddCycles (4 + 4);
break;
case RES_4_D:
BIT_RES (4, r_D);
AddCycles (4 + 4);
break;
case RES_4_E:
BIT_RES (4, r_E);
AddCycles (4 + 4);
break;
case RES_4_H:
BIT_RES (4, r_H);
AddCycles (4 + 4);
break;
case RES_4_L:
BIT_RES (4, r_L);
AddCycles (4 + 4);
break;
case RES_4_xHL:
BIT_mem_RES (4, r_HL);
AddCycles (4 + 4 + 7);
break;
case RES_4_A:
BIT_RES (4, r_A);
AddCycles (4 + 4);
break;
case RES_5_B:
BIT_RES (5, r_B);
AddCycles (4 + 4);
break;
case RES_5_C:
BIT_RES (5, r_C);
AddCycles (4 + 4);
break;
case RES_5_D:
BIT_RES (5, r_D);
AddCycles (4 + 4);
break;
case RES_5_E:
BIT_RES (5, r_E);
AddCycles (4 + 4);
break;
case RES_5_H:
BIT_RES (5, r_H);
AddCycles (4 + 4);
break;
case RES_5_L:
BIT_RES (5, r_L);
AddCycles (4 + 4);
break;
case RES_5_xHL:
BIT_mem_RES (5, r_HL);
AddCycles (4 + 4 + 7);
break;
case RES_5_A:
BIT_RES (5, r_A);
AddCycles (4 + 4);
break;
case RES_6_B:
BIT_RES (6, r_B);
AddCycles (4 + 4);
break;
case RES_6_C:
BIT_RES (6, r_C);
AddCycles (4 + 4);
break;
case RES_6_D:
BIT_RES (6, r_D);
AddCycles (4 + 4);
break;
case RES_6_E:
BIT_RES (6, r_E);
AddCycles (4 + 4);
break;
case RES_6_H:
BIT_RES (6, r_H);
AddCycles (4 + 4);
break;
case RES_6_L:
BIT_RES (6, r_L);
AddCycles (4 + 4);
break;
case RES_6_xHL:
BIT_mem_RES (6, r_HL);
AddCycles (4 + 4 + 7);
break;
case RES_6_A:
BIT_RES (6, r_A);
AddCycles (4 + 4);
break;
case RES_7_B:
BIT_RES (7, r_B);
AddCycles (4 + 4);
break;
case RES_7_C:
BIT_RES (7, r_C);
AddCycles (4 + 4);
break;
case RES_7_D:
BIT_RES (7, r_D);
AddCycles (4 + 4);
break;
case RES_7_E:
BIT_RES (7, r_E);
AddCycles (4 + 4);
break;
case RES_7_H:
BIT_RES (7, r_H);
AddCycles (4 + 4);
break;
case RES_7_L:
BIT_RES (7, r_L);
AddCycles (4 + 4);
break;
case RES_7_xHL:
BIT_mem_RES (7, r_HL);
AddCycles (4 + 4 + 7);
break;
case RES_7_A:
BIT_RES (7, r_A);
AddCycles (4 + 4);
break;
case SET_0_B:
BIT_SET (0, r_B);
AddCycles (4 + 4);
break;
case SET_0_C:
BIT_SET (0, r_C);
AddCycles (4 + 4);
break;
case SET_0_D:
BIT_SET (0, r_D);
AddCycles (4 + 4);
break;
case SET_0_E:
BIT_SET (0, r_E);
AddCycles (4 + 4);
break;
case SET_0_H:
BIT_SET (0, r_H);
AddCycles (4 + 4);
break;
case SET_0_L:
BIT_SET (0, r_L);
AddCycles (4 + 4);
break;
case SET_0_xHL:
BIT_mem_SET (0, r_HL);
AddCycles (4 + 4 + 7);
break;
case SET_0_A:
BIT_SET (0, r_A);
AddCycles (4 + 4);
break;
case SET_1_B:
BIT_SET (1, r_B);
AddCycles (4 + 4);
break;
case SET_1_C:
BIT_SET (1, r_C);
AddCycles (4 + 4);
break;
case SET_1_D:
BIT_SET (1, r_D);
AddCycles (4 + 4);
break;
case SET_1_E:
BIT_SET (1, r_E);
AddCycles (4 + 4);
break;
case SET_1_H:
BIT_SET (1, r_H);
AddCycles (4 + 4);
break;
case SET_1_L:
BIT_SET (1, r_L);
AddCycles (4 + 4);
break;
case SET_1_xHL:
BIT_mem_SET (1, r_HL);
AddCycles (4 + 4 + 7);
break;
case SET_1_A:
BIT_SET (1, r_A);
AddCycles (4 + 4);
break;
case SET_2_B:
BIT_SET (2, r_B);
AddCycles (4 + 4);
break;
case SET_2_C:
BIT_SET (2, r_C);
AddCycles (4 + 4);
break;
case SET_2_D:
BIT_SET (2, r_D);
AddCycles (4 + 4);
break;
case SET_2_E:
BIT_SET (2, r_E);
AddCycles (4 + 4);
break;
case SET_2_H:
BIT_SET (2, r_H);
AddCycles (4 + 4);
break;
case SET_2_L:
BIT_SET (2, r_L);
AddCycles (4 + 4);
break;
case SET_2_xHL:
BIT_mem_SET (2, r_HL);
AddCycles (4 + 4 + 7);
break;
case SET_2_A:
BIT_SET (2, r_A);
AddCycles (4 + 4);
break;
case SET_3_B:
BIT_SET (3, r_B);
AddCycles (4 + 4);
break;
case SET_3_C:
BIT_SET (3, r_C);
AddCycles (4 + 4);
break;
case SET_3_D:
BIT_SET (3, r_D);
AddCycles (4 + 4);
break;
case SET_3_E:
BIT_SET (3, r_E);
AddCycles (4 + 4);
break;
case SET_3_H:
BIT_SET (3, r_H);
AddCycles (4 + 4);
break;
case SET_3_L:
BIT_SET (3, r_L);
AddCycles (4 + 4);
break;
case SET_3_xHL:
BIT_mem_SET (3, r_HL);
AddCycles (4 + 4 + 7);
break;
case SET_3_A:
BIT_SET (3, r_A);
AddCycles (4 + 4);
break;
case SET_4_B:
BIT_SET (4, r_B);
AddCycles (4 + 4);
break;
case SET_4_C:
BIT_SET (4, r_C);
AddCycles (4 + 4);
break;
case SET_4_D:
BIT_SET (4, r_D);
AddCycles (4 + 4);
break;
case SET_4_E:
BIT_SET (4, r_E);
AddCycles (4 + 4);
break;
case SET_4_H:
BIT_SET (4, r_H);
AddCycles (4 + 4);
break;
case SET_4_L:
BIT_SET (4, r_L);
AddCycles (4 + 4);
break;