The-Homebrew-Cloud/Genesis-Plus-GX
2
0
Fork 0
mirror of https://github.com/ekeeke/Genesis-Plus-GX.git synced 2024-11-05 10:25:07 +01:00
Code Issues Packages Projects Releases Wiki Activity
822de1bd3f
Genesis-Plus-GX/source/z80/z80.c

3590 lines
167 KiB
C
Raw Normal View History

restored from bountysource
2008-08-07 14:26:07 +02:00
/*****************************************************************************
*
* z80.c
* Portable Z80 emulator V3.5
*
* Copyright (C) 1998,1999,2000 Juergen Buchmueller, all rights reserved.
*
* - This source code is released as freeware for non-commercial purposes.
* - You are free to use and redistribute this code in modified or
* unmodified form, provided you list me in the credits.
* - If you modify this source code, you must add a notice to each modified
* source file that it has been changed. If you're a nice person, you
* will clearly mark each change too. :)
* - If you wish to use this for commercial purposes, please contact me at
* pullmoll@t-online.de
* - The author of this copywritten work reserves the right to change the
* terms of its usage and license at any time, including retroactively
* - This entire notice must remain in the source code.
*
* Changes in 3.7 [Aaron Giles]
* - Changed NMI handling. NMIs are now latched in set_irq_state
* but are not taken there. Instead they are taken at the start of the
* execute loop.
* - Changed IRQ handling. IRQ state is set in set_irq_state but not taken
* except during the inner execute loop.
* - Removed x86 assembly hacks and obsolete timing loop catchers.
* Changes in 3.6
* - Got rid of the code that would inexactly emulate a Z80, i.e. removed
* all the #if Z80_EXACT #else branches.
* - Removed leading underscores from local register name shortcuts as
* this violates the C99 standard.
* - Renamed the registers inside the Z80 context to lower case to avoid
* ambiguities (shortcuts would have had the same names as the fields
* of the structure).
* Changes in 3.5
* - Implemented OTIR, INIR, etc. without look-up table for PF flag.
* [Ramsoft, Sean Young]
* Changes in 3.4
* - Removed Z80-MSX specific code as it's not needed any more.
* - Implemented DAA without look-up table [Ramsoft, Sean Young]
* Changes in 3.3
* - Fixed undocumented flags XF & YF in the non-asm versions of CP,
* and all the 16 bit arithmetic instructions. [Sean Young]
* Changes in 3.2
* - Fixed undocumented flags XF & YF of RRCA, and CF and HF of
* INI/IND/OUTI/OUTD/INIR/INDR/OTIR/OTDR [Sean Young]
* Changes in 3.1
* - removed the REPEAT_AT_ONCE execution of LDIR/CPIR etc. opcodes
* for readabilities sake and because the implementation was buggy
* (and I was not able to find the difference)
* Changes in 3.0
* - 'finished' switch to dynamically overrideable cycle count tables
* Changes in 2.9:
* - added methods to access and override the cycle count tables
* - fixed handling and timing of multiple DD/FD prefixed opcodes
* Changes in 2.8:
* - OUTI/OUTD/OTIR/OTDR also pre-decrement the B register now.
* This was wrong because of a bug fix on the wrong side
* (astrocade sound driver).
* Changes in 2.7:
* - removed z80_vm specific code, it's not needed (and never was).
* Changes in 2.6:
* - BUSY_LOOP_HACKS needed to call change_pc() earlier, before
* checking the opcodes at the new address, because otherwise they
* might access the old (wrong or even NULL) banked memory region.
* Thanks to Sean Young for finding this nasty bug.
* Changes in 2.5:
* - Burning cycles always adjusts the ICount by a multiple of 4.
* - In REPEAT_AT_ONCE cases the R register wasn't incremented twice
* per repetition as it should have been. Those repeated opcodes
* could also underflow the ICount.
* - Simplified TIME_LOOP_HACKS for BC and added two more for DE + HL
* timing loops. I think those hacks weren't endian safe before too.
* Changes in 2.4:
* - z80_reset zaps the entire context, sets IX and IY to 0xffff(!) and
* sets the Z flag. With these changes the Tehkan World Cup driver
* _seems_ to work again.
* Changes in 2.3:
* - External termination of the execution loop calls z80_burn() and
* z80_vm_burn() to burn an amount of cycles (R adjustment)
* - Shortcuts which burn CPU cycles (BUSY_LOOP_HACKS and TIME_LOOP_HACKS)
* now also adjust the R register depending on the skipped opcodes.
* Changes in 2.2:
* - Fixed bugs in CPL, SCF and CCF instructions flag handling.
* - Changed variable EA and ARG16() function to UINT32; this
* produces slightly more efficient code.
* - The DD/FD XY CB opcodes where XY is 40-7F and Y is not 6/E
* are changed to calls to the X6/XE opcodes to reduce object size.
* They're hardly ever used so this should not yield a speed penalty.
* New in 2.0:
* - Optional more exact Z80 emulation (#define Z80_EXACT 1) according
* to a detailed description by Sean Young which can be found at:
* http://www.msxnet.org/tech/z80-documented.pdf
*****************************************************************************/
#include "shared.h"
#include "z80.h"
#define VERBOSE 0
#if VERBOSE
#define LOG(x) logerror x
#else
#define LOG(x)
#endif
#define cpu_readop(a) cpu_readmem16(a)
#define cpu_readop_arg(a) cpu_readmem16(a)
/* execute main opcodes inside a big switch statement */
#ifndef BIG_SWITCH
#define BIG_SWITCH 1
#endif
/* big flags array for ADD/ADC/SUB/SBC/CP results */
#define BIG_FLAGS_ARRAY 1
/* on JP and JR opcodes check for tight loops */
#define BUSY_LOOP_HACKS 1
#define change_pc(a)
#define CF 0x01
#define NF 0x02
#define PF 0x04
#define VF PF
#define XF 0x08
#define HF 0x10
#define YF 0x20
#define ZF 0x40
#define SF 0x80
#define INT_IRQ 0x01
#define NMI_IRQ 0x02
#define PRVPC Z80.prvpc.d /* previous program counter */
#define PCD Z80.pc.d
#define PC Z80.pc.w.l
#define SPD Z80.sp.d
#define SP Z80.sp.w.l
#define AFD Z80.af.d
#define AF Z80.af.w.l
#define A Z80.af.b.h
#define F Z80.af.b.l
#define BCD Z80.bc.d
#define BC Z80.bc.w.l
#define B Z80.bc.b.h
#define C Z80.bc.b.l
#define DED Z80.de.d
#define DE Z80.de.w.l
#define D Z80.de.b.h
#define E Z80.de.b.l
#define HLD Z80.hl.d
#define HL Z80.hl.w.l
#define H Z80.hl.b.h
#define L Z80.hl.b.l
#define IXD Z80.ix.d
#define IX Z80.ix.w.l
#define HX Z80.ix.b.h
#define LX Z80.ix.b.l
#define IYD Z80.iy.d
#define IY Z80.iy.w.l
#define HY Z80.iy.b.h
#define LY Z80.iy.b.l
#define I Z80.i
#define R Z80.r
#define R2 Z80.r2
#define IM Z80.im
#define IFF1 Z80.iff1
#define IFF2 Z80.iff2
#define HALT Z80.halt
int z80_ICount;
Z80_Regs Z80;
static UINT32 EA;
static UINT8 SZ[256]; /* zero and sign flags */
static UINT8 SZ_BIT[256]; /* zero, sign and parity/overflow (=zero) flags for BIT opcode */
static UINT8 SZP[256]; /* zero, sign and parity flags */
static UINT8 SZHV_inc[256]; /* zero, sign, half carry and overflow flags INC r8 */
static UINT8 SZHV_dec[256]; /* zero, sign, half carry and overflow flags DEC r8 */
#if BIG_FLAGS_ARRAY
static UINT8 *SZHVC_add = 0;
static UINT8 *SZHVC_sub = 0;
#endif
static const UINT8 cc_op[0x100] = {
4,10, 7, 6, 4, 4, 7, 4, 4,11, 7, 6, 4, 4, 7, 4,
8,10, 7, 6, 4, 4, 7, 4,12,11, 7, 6, 4, 4, 7, 4,
7,10,16, 6, 4, 4, 7, 4, 7,11,16, 6, 4, 4, 7, 4,
7,10,13, 6,11,11,10, 4, 7,11,13, 6, 4, 4, 7, 4,
4, 4, 4, 4, 4, 4, 7, 4, 4, 4, 4, 4, 4, 4, 7, 4,
4, 4, 4, 4, 4, 4, 7, 4, 4, 4, 4, 4, 4, 4, 7, 4,
4, 4, 4, 4, 4, 4, 7, 4, 4, 4, 4, 4, 4, 4, 7, 4,
7, 7, 7, 7, 7, 7, 4, 7, 4, 4, 4, 4, 4, 4, 7, 4,
4, 4, 4, 4, 4, 4, 7, 4, 4, 4, 4, 4, 4, 4, 7, 4,
4, 4, 4, 4, 4, 4, 7, 4, 4, 4, 4, 4, 4, 4, 7, 4,
4, 4, 4, 4, 4, 4, 7, 4, 4, 4, 4, 4, 4, 4, 7, 4,
4, 4, 4, 4, 4, 4, 7, 4, 4, 4, 4, 4, 4, 4, 7, 4,
5,10,10,10,10,11, 7,11, 5,10,10, 0,10,17, 7,11,
5,10,10,11,10,11, 7,11, 5, 4,10,11,10, 0, 7,11,
5,10,10,19,10,11, 7,11, 5, 4,10, 4,10, 0, 7,11,
5,10,10, 4,10,11, 7,11, 5, 6,10, 4,10, 0, 7,11};
static const UINT8 cc_cb[0x100] = {
8, 8, 8, 8, 8, 8,15, 8, 8, 8, 8, 8, 8, 8,15, 8,
8, 8, 8, 8, 8, 8,15, 8, 8, 8, 8, 8, 8, 8,15, 8,
8, 8, 8, 8, 8, 8,15, 8, 8, 8, 8, 8, 8, 8,15, 8,
8, 8, 8, 8, 8, 8,15, 8, 8, 8, 8, 8, 8, 8,15, 8,
8, 8, 8, 8, 8, 8,12, 8, 8, 8, 8, 8, 8, 8,12, 8,
8, 8, 8, 8, 8, 8,12, 8, 8, 8, 8, 8, 8, 8,12, 8,
8, 8, 8, 8, 8, 8,12, 8, 8, 8, 8, 8, 8, 8,12, 8,
8, 8, 8, 8, 8, 8,12, 8, 8, 8, 8, 8, 8, 8,12, 8,
8, 8, 8, 8, 8, 8,15, 8, 8, 8, 8, 8, 8, 8,15, 8,
8, 8, 8, 8, 8, 8,15, 8, 8, 8, 8, 8, 8, 8,15, 8,
8, 8, 8, 8, 8, 8,15, 8, 8, 8, 8, 8, 8, 8,15, 8,
8, 8, 8, 8, 8, 8,15, 8, 8, 8, 8, 8, 8, 8,15, 8,
8, 8, 8, 8, 8, 8,15, 8, 8, 8, 8, 8, 8, 8,15, 8,
8, 8, 8, 8, 8, 8,15, 8, 8, 8, 8, 8, 8, 8,15, 8,
8, 8, 8, 8, 8, 8,15, 8, 8, 8, 8, 8, 8, 8,15, 8,
8, 8, 8, 8, 8, 8,15, 8, 8, 8, 8, 8, 8, 8,15, 8};
static const UINT8 cc_ed[0x100] = {
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
12,12,15,20, 8,14, 8, 9,12,12,15,20, 8,14, 8, 9,
12,12,15,20, 8,14, 8, 9,12,12,15,20, 8,14, 8, 9,
12,12,15,20, 8,14, 8,18,12,12,15,20, 8,14, 8,18,
12,12,15,20, 8,14, 8, 8,12,12,15,20, 8,14, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
16,16,16,16, 8, 8, 8, 8,16,16,16,16, 8, 8, 8, 8,
16,16,16,16, 8, 8, 8, 8,16,16,16,16, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8};
static const UINT8 cc_xy[0x100] = {
4, 4, 4, 4, 4, 4, 4, 4, 4,15, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 4, 4, 4,15, 4, 4, 4, 4, 4, 4,
4,14,20,10, 9, 9, 9, 4, 4,15,20,10, 9, 9, 9, 4,
4, 4, 4, 4,23,23,19, 4, 4,15, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 9, 9,19, 4, 4, 4, 4, 4, 9, 9,19, 4,
4, 4, 4, 4, 9, 9,19, 4, 4, 4, 4, 4, 9, 9,19, 4,
9, 9, 9, 9, 9, 9,19, 9, 9, 9, 9, 9, 9, 9,19, 9,
19,19,19,19,19,19, 4,19, 4, 4, 4, 4, 9, 9,19, 4,
4, 4, 4, 4, 9, 9,19, 4, 4, 4, 4, 4, 9, 9,19, 4,
4, 4, 4, 4, 9, 9,19, 4, 4, 4, 4, 4, 9, 9,19, 4,
4, 4, 4, 4, 9, 9,19, 4, 4, 4, 4, 4, 9, 9,19, 4,
4, 4, 4, 4, 9, 9,19, 4, 4, 4, 4, 4, 9, 9,19, 4,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
4,14, 4,23, 4,15, 4, 4, 4, 8, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 4, 4, 4,10, 4, 4, 4, 4, 4, 4};
static const UINT8 cc_xycb[0x100] = {
23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,
23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,
23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,
23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,
20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,
20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,
20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,
20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,
23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,
23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,
23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,
23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,
23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,
23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,
23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,
23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23};
/* extra cycles if jr/jp/call taken and 'interrupt latency' on rst 0-7 */
static const UINT8 cc_ex[0x100] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* DJNZ */
5, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, /* JR NZ/JR Z */
5, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, /* JR NC/JR C */
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,
5, 5, 5, 5, 0, 0, 0, 0, 5, 5, 5, 5, 0, 0, 0, 0, /* LDIR/CPIR/INIR/OTIR LDDR/CPDR/INDR/OTDR */
6, 0, 0, 0, 7, 0, 0, 2, 6, 0, 0, 0, 7, 0, 0, 2,
6, 0, 0, 0, 7, 0, 0, 2, 6, 0, 0, 0, 7, 0, 0, 2,
6, 0, 0, 0, 7, 0, 0, 2, 6, 0, 0, 0, 7, 0, 0, 2,
6, 0, 0, 0, 7, 0, 0, 2, 6, 0, 0, 0, 7, 0, 0, 2};
static const UINT8 *cc[6];
#define Z80_TABLE_dd Z80_TABLE_xy
#define Z80_TABLE_fd Z80_TABLE_xy
typedef void (*funcptr)(void);
#define PROTOTYPES(tablename,prefix) \
INLINE void prefix##_00(void); INLINE void prefix##_01(void); INLINE void prefix##_02(void); INLINE void prefix##_03(void); \
INLINE void prefix##_04(void); INLINE void prefix##_05(void); INLINE void prefix##_06(void); INLINE void prefix##_07(void); \
INLINE void prefix##_08(void); INLINE void prefix##_09(void); INLINE void prefix##_0a(void); INLINE void prefix##_0b(void); \
INLINE void prefix##_0c(void); INLINE void prefix##_0d(void); INLINE void prefix##_0e(void); INLINE void prefix##_0f(void); \
INLINE void prefix##_10(void); INLINE void prefix##_11(void); INLINE void prefix##_12(void); INLINE void prefix##_13(void); \
INLINE void prefix##_14(void); INLINE void prefix##_15(void); INLINE void prefix##_16(void); INLINE void prefix##_17(void); \
INLINE void prefix##_18(void); INLINE void prefix##_19(void); INLINE void prefix##_1a(void); INLINE void prefix##_1b(void); \
INLINE void prefix##_1c(void); INLINE void prefix##_1d(void); INLINE void prefix##_1e(void); INLINE void prefix##_1f(void); \
INLINE void prefix##_20(void); INLINE void prefix##_21(void); INLINE void prefix##_22(void); INLINE void prefix##_23(void); \
INLINE void prefix##_24(void); INLINE void prefix##_25(void); INLINE void prefix##_26(void); INLINE void prefix##_27(void); \
INLINE void prefix##_28(void); INLINE void prefix##_29(void); INLINE void prefix##_2a(void); INLINE void prefix##_2b(void); \
INLINE void prefix##_2c(void); INLINE void prefix##_2d(void); INLINE void prefix##_2e(void); INLINE void prefix##_2f(void); \
INLINE void prefix##_30(void); INLINE void prefix##_31(void); INLINE void prefix##_32(void); INLINE void prefix##_33(void); \
INLINE void prefix##_34(void); INLINE void prefix##_35(void); INLINE void prefix##_36(void); INLINE void prefix##_37(void); \
INLINE void prefix##_38(void); INLINE void prefix##_39(void); INLINE void prefix##_3a(void); INLINE void prefix##_3b(void); \
INLINE void prefix##_3c(void); INLINE void prefix##_3d(void); INLINE void prefix##_3e(void); INLINE void prefix##_3f(void); \
INLINE void prefix##_40(void); INLINE void prefix##_41(void); INLINE void prefix##_42(void); INLINE void prefix##_43(void); \
INLINE void prefix##_44(void); INLINE void prefix##_45(void); INLINE void prefix##_46(void); INLINE void prefix##_47(void); \
INLINE void prefix##_48(void); INLINE void prefix##_49(void); INLINE void prefix##_4a(void); INLINE void prefix##_4b(void); \
INLINE void prefix##_4c(void); INLINE void prefix##_4d(void); INLINE void prefix##_4e(void); INLINE void prefix##_4f(void); \
INLINE void prefix##_50(void); INLINE void prefix##_51(void); INLINE void prefix##_52(void); INLINE void prefix##_53(void); \
INLINE void prefix##_54(void); INLINE void prefix##_55(void); INLINE void prefix##_56(void); INLINE void prefix##_57(void); \
INLINE void prefix##_58(void); INLINE void prefix##_59(void); INLINE void prefix##_5a(void); INLINE void prefix##_5b(void); \
INLINE void prefix##_5c(void); INLINE void prefix##_5d(void); INLINE void prefix##_5e(void); INLINE void prefix##_5f(void); \
INLINE void prefix##_60(void); INLINE void prefix##_61(void); INLINE void prefix##_62(void); INLINE void prefix##_63(void); \
INLINE void prefix##_64(void); INLINE void prefix##_65(void); INLINE void prefix##_66(void); INLINE void prefix##_67(void); \
INLINE void prefix##_68(void); INLINE void prefix##_69(void); INLINE void prefix##_6a(void); INLINE void prefix##_6b(void); \
INLINE void prefix##_6c(void); INLINE void prefix##_6d(void); INLINE void prefix##_6e(void); INLINE void prefix##_6f(void); \
INLINE void prefix##_70(void); INLINE void prefix##_71(void); INLINE void prefix##_72(void); INLINE void prefix##_73(void); \
INLINE void prefix##_74(void); INLINE void prefix##_75(void); INLINE void prefix##_76(void); INLINE void prefix##_77(void); \
INLINE void prefix##_78(void); INLINE void prefix##_79(void); INLINE void prefix##_7a(void); INLINE void prefix##_7b(void); \
INLINE void prefix##_7c(void); INLINE void prefix##_7d(void); INLINE void prefix##_7e(void); INLINE void prefix##_7f(void); \
INLINE void prefix##_80(void); INLINE void prefix##_81(void); INLINE void prefix##_82(void); INLINE void prefix##_83(void); \
INLINE void prefix##_84(void); INLINE void prefix##_85(void); INLINE void prefix##_86(void); INLINE void prefix##_87(void); \
INLINE void prefix##_88(void); INLINE void prefix##_89(void); INLINE void prefix##_8a(void); INLINE void prefix##_8b(void); \
INLINE void prefix##_8c(void); INLINE void prefix##_8d(void); INLINE void prefix##_8e(void); INLINE void prefix##_8f(void); \
INLINE void prefix##_90(void); INLINE void prefix##_91(void); INLINE void prefix##_92(void); INLINE void prefix##_93(void); \
INLINE void prefix##_94(void); INLINE void prefix##_95(void); INLINE void prefix##_96(void); INLINE void prefix##_97(void); \
INLINE void prefix##_98(void); INLINE void prefix##_99(void); INLINE void prefix##_9a(void); INLINE void prefix##_9b(void); \
INLINE void prefix##_9c(void); INLINE void prefix##_9d(void); INLINE void prefix##_9e(void); INLINE void prefix##_9f(void); \
INLINE void prefix##_a0(void); INLINE void prefix##_a1(void); INLINE void prefix##_a2(void); INLINE void prefix##_a3(void); \
INLINE void prefix##_a4(void); INLINE void prefix##_a5(void); INLINE void prefix##_a6(void); INLINE void prefix##_a7(void); \
INLINE void prefix##_a8(void); INLINE void prefix##_a9(void); INLINE void prefix##_aa(void); INLINE void prefix##_ab(void); \
INLINE void prefix##_ac(void); INLINE void prefix##_ad(void); INLINE void prefix##_ae(void); INLINE void prefix##_af(void); \
INLINE void prefix##_b0(void); INLINE void prefix##_b1(void); INLINE void prefix##_b2(void); INLINE void prefix##_b3(void); \
INLINE void prefix##_b4(void); INLINE void prefix##_b5(void); INLINE void prefix##_b6(void); INLINE void prefix##_b7(void); \
INLINE void prefix##_b8(void); INLINE void prefix##_b9(void); INLINE void prefix##_ba(void); INLINE void prefix##_bb(void); \
INLINE void prefix##_bc(void); INLINE void prefix##_bd(void); INLINE void prefix##_be(void); INLINE void prefix##_bf(void); \
INLINE void prefix##_c0(void); INLINE void prefix##_c1(void); INLINE void prefix##_c2(void); INLINE void prefix##_c3(void); \
INLINE void prefix##_c4(void); INLINE void prefix##_c5(void); INLINE void prefix##_c6(void); INLINE void prefix##_c7(void); \
INLINE void prefix##_c8(void); INLINE void prefix##_c9(void); INLINE void prefix##_ca(void); INLINE void prefix##_cb(void); \
INLINE void prefix##_cc(void); INLINE void prefix##_cd(void); INLINE void prefix##_ce(void); INLINE void prefix##_cf(void); \
INLINE void prefix##_d0(void); INLINE void prefix##_d1(void); INLINE void prefix##_d2(void); INLINE void prefix##_d3(void); \
INLINE void prefix##_d4(void); INLINE void prefix##_d5(void); INLINE void prefix##_d6(void); INLINE void prefix##_d7(void); \
INLINE void prefix##_d8(void); INLINE void prefix##_d9(void); INLINE void prefix##_da(void); INLINE void prefix##_db(void); \
INLINE void prefix##_dc(void); INLINE void prefix##_dd(void); INLINE void prefix##_de(void); INLINE void prefix##_df(void); \
INLINE void prefix##_e0(void); INLINE void prefix##_e1(void); INLINE void prefix##_e2(void); INLINE void prefix##_e3(void); \
INLINE void prefix##_e4(void); INLINE void prefix##_e5(void); INLINE void prefix##_e6(void); INLINE void prefix##_e7(void); \
INLINE void prefix##_e8(void); INLINE void prefix##_e9(void); INLINE void prefix##_ea(void); INLINE void prefix##_eb(void); \
INLINE void prefix##_ec(void); INLINE void prefix##_ed(void); INLINE void prefix##_ee(void); INLINE void prefix##_ef(void); \
INLINE void prefix##_f0(void); INLINE void prefix##_f1(void); INLINE void prefix##_f2(void); INLINE void prefix##_f3(void); \
INLINE void prefix##_f4(void); INLINE void prefix##_f5(void); INLINE void prefix##_f6(void); INLINE void prefix##_f7(void); \
INLINE void prefix##_f8(void); INLINE void prefix##_f9(void); INLINE void prefix##_fa(void); INLINE void prefix##_fb(void); \
INLINE void prefix##_fc(void); INLINE void prefix##_fd(void); INLINE void prefix##_fe(void); INLINE void prefix##_ff(void); \
static const funcptr tablename[0x100] = { \
prefix##_00,prefix##_01,prefix##_02,prefix##_03,prefix##_04,prefix##_05,prefix##_06,prefix##_07, \
prefix##_08,prefix##_09,prefix##_0a,prefix##_0b,prefix##_0c,prefix##_0d,prefix##_0e,prefix##_0f, \
prefix##_10,prefix##_11,prefix##_12,prefix##_13,prefix##_14,prefix##_15,prefix##_16,prefix##_17, \
prefix##_18,prefix##_19,prefix##_1a,prefix##_1b,prefix##_1c,prefix##_1d,prefix##_1e,prefix##_1f, \
prefix##_20,prefix##_21,prefix##_22,prefix##_23,prefix##_24,prefix##_25,prefix##_26,prefix##_27, \
prefix##_28,prefix##_29,prefix##_2a,prefix##_2b,prefix##_2c,prefix##_2d,prefix##_2e,prefix##_2f, \
prefix##_30,prefix##_31,prefix##_32,prefix##_33,prefix##_34,prefix##_35,prefix##_36,prefix##_37, \
prefix##_38,prefix##_39,prefix##_3a,prefix##_3b,prefix##_3c,prefix##_3d,prefix##_3e,prefix##_3f, \
prefix##_40,prefix##_41,prefix##_42,prefix##_43,prefix##_44,prefix##_45,prefix##_46,prefix##_47, \
prefix##_48,prefix##_49,prefix##_4a,prefix##_4b,prefix##_4c,prefix##_4d,prefix##_4e,prefix##_4f, \
prefix##_50,prefix##_51,prefix##_52,prefix##_53,prefix##_54,prefix##_55,prefix##_56,prefix##_57, \
prefix##_58,prefix##_59,prefix##_5a,prefix##_5b,prefix##_5c,prefix##_5d,prefix##_5e,prefix##_5f, \
prefix##_60,prefix##_61,prefix##_62,prefix##_63,prefix##_64,prefix##_65,prefix##_66,prefix##_67, \
prefix##_68,prefix##_69,prefix##_6a,prefix##_6b,prefix##_6c,prefix##_6d,prefix##_6e,prefix##_6f, \
prefix##_70,prefix##_71,prefix##_72,prefix##_73,prefix##_74,prefix##_75,prefix##_76,prefix##_77, \
prefix##_78,prefix##_79,prefix##_7a,prefix##_7b,prefix##_7c,prefix##_7d,prefix##_7e,prefix##_7f, \
prefix##_80,prefix##_81,prefix##_82,prefix##_83,prefix##_84,prefix##_85,prefix##_86,prefix##_87, \
prefix##_88,prefix##_89,prefix##_8a,prefix##_8b,prefix##_8c,prefix##_8d,prefix##_8e,prefix##_8f, \
prefix##_90,prefix##_91,prefix##_92,prefix##_93,prefix##_94,prefix##_95,prefix##_96,prefix##_97, \
prefix##_98,prefix##_99,prefix##_9a,prefix##_9b,prefix##_9c,prefix##_9d,prefix##_9e,prefix##_9f, \
prefix##_a0,prefix##_a1,prefix##_a2,prefix##_a3,prefix##_a4,prefix##_a5,prefix##_a6,prefix##_a7, \
prefix##_a8,prefix##_a9,prefix##_aa,prefix##_ab,prefix##_ac,prefix##_ad,prefix##_ae,prefix##_af, \
prefix##_b0,prefix##_b1,prefix##_b2,prefix##_b3,prefix##_b4,prefix##_b5,prefix##_b6,prefix##_b7, \
prefix##_b8,prefix##_b9,prefix##_ba,prefix##_bb,prefix##_bc,prefix##_bd,prefix##_be,prefix##_bf, \
prefix##_c0,prefix##_c1,prefix##_c2,prefix##_c3,prefix##_c4,prefix##_c5,prefix##_c6,prefix##_c7, \
prefix##_c8,prefix##_c9,prefix##_ca,prefix##_cb,prefix##_cc,prefix##_cd,prefix##_ce,prefix##_cf, \
prefix##_d0,prefix##_d1,prefix##_d2,prefix##_d3,prefix##_d4,prefix##_d5,prefix##_d6,prefix##_d7, \
prefix##_d8,prefix##_d9,prefix##_da,prefix##_db,prefix##_dc,prefix##_dd,prefix##_de,prefix##_df, \
prefix##_e0,prefix##_e1,prefix##_e2,prefix##_e3,prefix##_e4,prefix##_e5,prefix##_e6,prefix##_e7, \
prefix##_e8,prefix##_e9,prefix##_ea,prefix##_eb,prefix##_ec,prefix##_ed,prefix##_ee,prefix##_ef, \
prefix##_f0,prefix##_f1,prefix##_f2,prefix##_f3,prefix##_f4,prefix##_f5,prefix##_f6,prefix##_f7, \
prefix##_f8,prefix##_f9,prefix##_fa,prefix##_fb,prefix##_fc,prefix##_fd,prefix##_fe,prefix##_ff \
}
PROTOTYPES(Z80op,op);
PROTOTYPES(Z80cb,cb);
PROTOTYPES(Z80dd,dd);
PROTOTYPES(Z80ed,ed);
PROTOTYPES(Z80fd,fd);
PROTOTYPES(Z80xycb,xycb);
/****************************************************************************/
/* Burn an odd amount of cycles, that is instructions taking something */
/* different from 4 T-states per opcode (and R increment) */
/****************************************************************************/
INLINE void BURNODD(int cycles, int opcodes, int cyclesum)
{
if( cycles > 0 )
{
R += (cycles / cyclesum) * opcodes;
z80_ICount -= (cycles / cyclesum) * cyclesum;
}
}
/***************************************************************
* define an opcode function
***************************************************************/
#define OP(prefix,opcode) INLINE void prefix##_##opcode(void)
/***************************************************************
* adjust cycle count by n T-states
***************************************************************/
#define CC(prefix,opcode) z80_ICount -= cc[Z80_TABLE_##prefix][opcode]
/***************************************************************
* execute an opcode
***************************************************************/
#define EXEC(prefix,opcode) \
{ \
unsigned op = opcode; \
(*Z80##prefix[op])(); \
CC(prefix,op); \
}
#if BIG_SWITCH
#define EXEC_INLINE(prefix,opcode) \
{ \
unsigned op = opcode; \
switch(op) \
{ \
case 0x00:prefix##_##00();break; case 0x01:prefix##_##01();break; case 0x02:prefix##_##02();break; case 0x03:prefix##_##03();break; \
case 0x04:prefix##_##04();break; case 0x05:prefix##_##05();break; case 0x06:prefix##_##06();break; case 0x07:prefix##_##07();break; \
case 0x08:prefix##_##08();break; case 0x09:prefix##_##09();break; case 0x0a:prefix##_##0a();break; case 0x0b:prefix##_##0b();break; \
case 0x0c:prefix##_##0c();break; case 0x0d:prefix##_##0d();break; case 0x0e:prefix##_##0e();break; case 0x0f:prefix##_##0f();break; \
case 0x10:prefix##_##10();break; case 0x11:prefix##_##11();break; case 0x12:prefix##_##12();break; case 0x13:prefix##_##13();break; \
case 0x14:prefix##_##14();break; case 0x15:prefix##_##15();break; case 0x16:prefix##_##16();break; case 0x17:prefix##_##17();break; \
case 0x18:prefix##_##18();break; case 0x19:prefix##_##19();break; case 0x1a:prefix##_##1a();break; case 0x1b:prefix##_##1b();break; \
case 0x1c:prefix##_##1c();break; case 0x1d:prefix##_##1d();break; case 0x1e:prefix##_##1e();break; case 0x1f:prefix##_##1f();break; \
case 0x20:prefix##_##20();break; case 0x21:prefix##_##21();break; case 0x22:prefix##_##22();break; case 0x23:prefix##_##23();break; \
case 0x24:prefix##_##24();break; case 0x25:prefix##_##25();break; case 0x26:prefix##_##26();break; case 0x27:prefix##_##27();break; \
case 0x28:prefix##_##28();break; case 0x29:prefix##_##29();break; case 0x2a:prefix##_##2a();break; case 0x2b:prefix##_##2b();break; \
case 0x2c:prefix##_##2c();break; case 0x2d:prefix##_##2d();break; case 0x2e:prefix##_##2e();break; case 0x2f:prefix##_##2f();break; \
case 0x30:prefix##_##30();break; case 0x31:prefix##_##31();break; case 0x32:prefix##_##32();break; case 0x33:prefix##_##33();break; \
case 0x34:prefix##_##34();break; case 0x35:prefix##_##35();break; case 0x36:prefix##_##36();break; case 0x37:prefix##_##37();break; \
case 0x38:prefix##_##38();break; case 0x39:prefix##_##39();break; case 0x3a:prefix##_##3a();break; case 0x3b:prefix##_##3b();break; \
case 0x3c:prefix##_##3c();break; case 0x3d:prefix##_##3d();break; case 0x3e:prefix##_##3e();break; case 0x3f:prefix##_##3f();break; \
case 0x40:prefix##_##40();break; case 0x41:prefix##_##41();break; case 0x42:prefix##_##42();break; case 0x43:prefix##_##43();break; \
case 0x44:prefix##_##44();break; case 0x45:prefix##_##45();break; case 0x46:prefix##_##46();break; case 0x47:prefix##_##47();break; \
case 0x48:prefix##_##48();break; case 0x49:prefix##_##49();break; case 0x4a:prefix##_##4a();break; case 0x4b:prefix##_##4b();break; \
case 0x4c:prefix##_##4c();break; case 0x4d:prefix##_##4d();break; case 0x4e:prefix##_##4e();break; case 0x4f:prefix##_##4f();break; \
case 0x50:prefix##_##50();break; case 0x51:prefix##_##51();break; case 0x52:prefix##_##52();break; case 0x53:prefix##_##53();break; \
case 0x54:prefix##_##54();break; case 0x55:prefix##_##55();break; case 0x56:prefix##_##56();break; case 0x57:prefix##_##57();break; \
case 0x58:prefix##_##58();break; case 0x59:prefix##_##59();break; case 0x5a:prefix##_##5a();break; case 0x5b:prefix##_##5b();break; \
case 0x5c:prefix##_##5c();break; case 0x5d:prefix##_##5d();break; case 0x5e:prefix##_##5e();break; case 0x5f:prefix##_##5f();break; \
case 0x60:prefix##_##60();break; case 0x61:prefix##_##61();break; case 0x62:prefix##_##62();break; case 0x63:prefix##_##63();break; \
case 0x64:prefix##_##64();break; case 0x65:prefix##_##65();break; case 0x66:prefix##_##66();break; case 0x67:prefix##_##67();break; \
case 0x68:prefix##_##68();break; case 0x69:prefix##_##69();break; case 0x6a:prefix##_##6a();break; case 0x6b:prefix##_##6b();break; \
case 0x6c:prefix##_##6c();break; case 0x6d:prefix##_##6d();break; case 0x6e:prefix##_##6e();break; case 0x6f:prefix##_##6f();break; \
case 0x70:prefix##_##70();break; case 0x71:prefix##_##71();break; case 0x72:prefix##_##72();break; case 0x73:prefix##_##73();break; \
case 0x74:prefix##_##74();break; case 0x75:prefix##_##75();break; case 0x76:prefix##_##76();break; case 0x77:prefix##_##77();break; \
case 0x78:prefix##_##78();break; case 0x79:prefix##_##79();break; case 0x7a:prefix##_##7a();break; case 0x7b:prefix##_##7b();break; \
case 0x7c:prefix##_##7c();break; case 0x7d:prefix##_##7d();break; case 0x7e:prefix##_##7e();break; case 0x7f:prefix##_##7f();break; \
case 0x80:prefix##_##80();break; case 0x81:prefix##_##81();break; case 0x82:prefix##_##82();break; case 0x83:prefix##_##83();break; \
case 0x84:prefix##_##84();break; case 0x85:prefix##_##85();break; case 0x86:prefix##_##86();break; case 0x87:prefix##_##87();break; \
case 0x88:prefix##_##88();break; case 0x89:prefix##_##89();break; case 0x8a:prefix##_##8a();break; case 0x8b:prefix##_##8b();break; \
case 0x8c:prefix##_##8c();break; case 0x8d:prefix##_##8d();break; case 0x8e:prefix##_##8e();break; case 0x8f:prefix##_##8f();break; \
case 0x90:prefix##_##90();break; case 0x91:prefix##_##91();break; case 0x92:prefix##_##92();break; case 0x93:prefix##_##93();break; \
case 0x94:prefix##_##94();break; case 0x95:prefix##_##95();break; case 0x96:prefix##_##96();break; case 0x97:prefix##_##97();break; \
case 0x98:prefix##_##98();break; case 0x99:prefix##_##99();break; case 0x9a:prefix##_##9a();break; case 0x9b:prefix##_##9b();break; \
case 0x9c:prefix##_##9c();break; case 0x9d:prefix##_##9d();break; case 0x9e:prefix##_##9e();break; case 0x9f:prefix##_##9f();break; \
case 0xa0:prefix##_##a0();break; case 0xa1:prefix##_##a1();break; case 0xa2:prefix##_##a2();break; case 0xa3:prefix##_##a3();break; \
case 0xa4:prefix##_##a4();break; case 0xa5:prefix##_##a5();break; case 0xa6:prefix##_##a6();break; case 0xa7:prefix##_##a7();break; \
case 0xa8:prefix##_##a8();break; case 0xa9:prefix##_##a9();break; case 0xaa:prefix##_##aa();break; case 0xab:prefix##_##ab();break; \
case 0xac:prefix##_##ac();break; case 0xad:prefix##_##ad();break; case 0xae:prefix##_##ae();break; case 0xaf:prefix##_##af();break; \
case 0xb0:prefix##_##b0();break; case 0xb1:prefix##_##b1();break; case 0xb2:prefix##_##b2();break; case 0xb3:prefix##_##b3();break; \
case 0xb4:prefix##_##b4();break; case 0xb5:prefix##_##b5();break; case 0xb6:prefix##_##b6();break; case 0xb7:prefix##_##b7();break; \
case 0xb8:prefix##_##b8();break; case 0xb9:prefix##_##b9();break; case 0xba:prefix##_##ba();break; case 0xbb:prefix##_##bb();break; \
case 0xbc:prefix##_##bc();break; case 0xbd:prefix##_##bd();break; case 0xbe:prefix##_##be();break; case 0xbf:prefix##_##bf();break; \
case 0xc0:prefix##_##c0();break; case 0xc1:prefix##_##c1();break; case 0xc2:prefix##_##c2();break; case 0xc3:prefix##_##c3();break; \
case 0xc4:prefix##_##c4();break; case 0xc5:prefix##_##c5();break; case 0xc6:prefix##_##c6();break; case 0xc7:prefix##_##c7();break; \
case 0xc8:prefix##_##c8();break; case 0xc9:prefix##_##c9();break; case 0xca:prefix##_##ca();break; case 0xcb:prefix##_##cb();break; \
case 0xcc:prefix##_##cc();break; case 0xcd:prefix##_##cd();break; case 0xce:prefix##_##ce();break; case 0xcf:prefix##_##cf();break; \
case 0xd0:prefix##_##d0();break; case 0xd1:prefix##_##d1();break; case 0xd2:prefix##_##d2();break; case 0xd3:prefix##_##d3();break; \
case 0xd4:prefix##_##d4();break; case 0xd5:prefix##_##d5();break; case 0xd6:prefix##_##d6();break; case 0xd7:prefix##_##d7();break; \
case 0xd8:prefix##_##d8();break; case 0xd9:prefix##_##d9();break; case 0xda:prefix##_##da();break; case 0xdb:prefix##_##db();break; \
case 0xdc:prefix##_##dc();break; case 0xdd:prefix##_##dd();break; case 0xde:prefix##_##de();break; case 0xdf:prefix##_##df();break; \
case 0xe0:prefix##_##e0();break; case 0xe1:prefix##_##e1();break; case 0xe2:prefix##_##e2();break; case 0xe3:prefix##_##e3();break; \
case 0xe4:prefix##_##e4();break; case 0xe5:prefix##_##e5();break; case 0xe6:prefix##_##e6();break; case 0xe7:prefix##_##e7();break; \
case 0xe8:prefix##_##e8();break; case 0xe9:prefix##_##e9();break; case 0xea:prefix##_##ea();break; case 0xeb:prefix##_##eb();break; \
case 0xec:prefix##_##ec();break; case 0xed:prefix##_##ed();break; case 0xee:prefix##_##ee();break; case 0xef:prefix##_##ef();break; \
case 0xf0:prefix##_##f0();break; case 0xf1:prefix##_##f1();break; case 0xf2:prefix##_##f2();break; case 0xf3:prefix##_##f3();break; \
case 0xf4:prefix##_##f4();break; case 0xf5:prefix##_##f5();break; case 0xf6:prefix##_##f6();break; case 0xf7:prefix##_##f7();break; \
case 0xf8:prefix##_##f8();break; case 0xf9:prefix##_##f9();break; case 0xfa:prefix##_##fa();break; case 0xfb:prefix##_##fb();break; \
case 0xfc:prefix##_##fc();break; case 0xfd:prefix##_##fd();break; case 0xfe:prefix##_##fe();break; case 0xff:prefix##_##ff();break; \
} \
CC(prefix,op); \
}
#else
#define EXEC_INLINE EXEC
#endif
/***************************************************************
* Enter HALT state; write 1 to fake port on first execution
***************************************************************/
#define ENTER_HALT { \
PC--; \
HALT = 1; \
if( Z80.irq_state == CLEAR_LINE ) \
z80_burn( z80_ICount ); \
}
/***************************************************************
* Leave HALT state; write 0 to fake port
***************************************************************/
#define LEAVE_HALT { \
if( HALT ) \
{ \
HALT = 0; \
PC++; \
} \
}
/***************************************************************
* Input a byte from given I/O port
***************************************************************/
#define IN(port) ((UINT8)cpu_readport16(port))
/***************************************************************
* Output a byte to given I/O port
***************************************************************/
#define OUT(port,value) cpu_writeport16(port,value)
/***************************************************************
* Read a byte from given memory location
***************************************************************/
#define RM(addr) (UINT8)cpu_readmem16(addr)
/***************************************************************
* Read a word from given memory location
***************************************************************/
INLINE void RM16( UINT32 addr, PAIR *r )
{
r->b.l = RM(addr);
r->b.h = RM((addr+1)&0xffff);
}
/***************************************************************
* Write a byte to given memory location
***************************************************************/
#define WM(addr,value) cpu_writemem16(addr,value)
/***************************************************************
* Write a word to given memory location
***************************************************************/
INLINE void WM16( UINT32 addr, PAIR *r )
{
WM(addr,r->b.l);
WM((addr+1)&0xffff,r->b.h);
}
/***************************************************************
* ROP() is identical to RM() except it is used for
* reading opcodes. In case of system with memory mapped I/O,
* this function can be used to greatly speed up emulation
***************************************************************/
INLINE UINT8 ROP(void)
{
unsigned pc = PCD;
PC++;
return cpu_readop(pc);
}
/****************************************************************
* ARG() is identical to ROP() except it is used
* for reading opcode arguments. This difference can be used to
* support systems that use different encoding mechanisms for
* opcodes and opcode arguments
***************************************************************/
INLINE UINT8 ARG(void)
{
unsigned pc = PCD;
PC++;
return cpu_readop_arg(pc);
}
INLINE UINT32 ARG16(void)
{
unsigned pc = PCD;
PC += 2;
return cpu_readop_arg(pc) | (cpu_readop_arg((pc+1)&0xffff) << 8);
}
/***************************************************************
* Calculate the effective address EA of an opcode using
* IX+offset resp. IY+offset addressing.
***************************************************************/
#define EAX EA = (UINT32)(UINT16)(IX + (INT8)ARG())
#define EAY EA = (UINT32)(UINT16)(IY + (INT8)ARG())
/***************************************************************
* POP
***************************************************************/
#define POP(DR) do { RM16( SPD, &Z80.DR ); SP += 2; } while (0)
/***************************************************************
* PUSH
***************************************************************/
#define PUSH(SR) do { SP -= 2; WM16( SPD, &Z80.SR ); } while (0)
/***************************************************************
* JP
***************************************************************/
#if BUSY_LOOP_HACKS
#define JP { \
unsigned oldpc = PCD-1; \
PCD = ARG16(); \
change_pc(PCD); \
/* speed up busy loop */ \
if( PCD == oldpc ) \
{ \
if( Z80.irq_state == CLEAR_LINE ) \
BURNODD( z80_ICount, 1, cc[Z80_TABLE_op][0xc3] ); \
} \
else \
{ \
UINT8 op = cpu_readop(PCD); \
if( PCD == oldpc-1 ) \
{ \
/* NOP - JP $-1 or EI - JP $-1 */ \
if ( op == 0x00 || op == 0xfb ) \
{ \
if( Z80.irq_state == CLEAR_LINE ) \
BURNODD( z80_ICount-cc[Z80_TABLE_op][0x00], \
2, cc[Z80_TABLE_op][0x00]+cc[Z80_TABLE_op][0xc3]); \
} \
} \
else \
/* LD SP,#xxxx - JP $-3 (Galaga) */ \
if( PCD == oldpc-3 && op == 0x31 ) \
{ \
if( Z80.irq_state == CLEAR_LINE ) \
BURNODD( z80_ICount-cc[Z80_TABLE_op][0x31], \
2, cc[Z80_TABLE_op][0x31]+cc[Z80_TABLE_op][0xc3]); \
} \
} \
}
#else
#define JP { \
PCD = ARG16(); \
change_pc(PCD); \
}
#endif
/***************************************************************
* JP_COND
***************************************************************/
#define JP_COND(cond) \
if( cond ) \
{ \
PCD = ARG16(); \
change_pc(PCD); \
} \
else \
{ \
PC += 2; \
}
/***************************************************************
* JR
***************************************************************/
#define JR() \
{ \
unsigned oldpc = PCD-1; \
INT8 arg = (INT8)ARG(); /* ARG() also increments PC */ \
PC += arg; /* so don't do PC += ARG() */ \
change_pc(PCD); \
/* speed up busy loop */ \
if( PCD == oldpc ) \
{ \
if( Z80.irq_state == CLEAR_LINE ) \
BURNODD( z80_ICount, 1, cc[Z80_TABLE_op][0x18] ); \
} \
else \
{ \
UINT8 op = cpu_readop(PCD); \
if( PCD == oldpc-1 ) \
{ \
/* NOP - JR $-1 or EI - JR $-1 */ \
if ( op == 0x00 || op == 0xfb ) \
{ \
if( Z80.irq_state == CLEAR_LINE ) \
BURNODD( z80_ICount-cc[Z80_TABLE_op][0x00], \
2, cc[Z80_TABLE_op][0x00]+cc[Z80_TABLE_op][0x18]); \
} \
} \
else \
/* LD SP,#xxxx - JR $-3 */ \
if( PCD == oldpc-3 && op == 0x31 ) \
{ \
if( Z80.irq_state == CLEAR_LINE ) \
BURNODD( z80_ICount-cc[Z80_TABLE_op][0x31], \
2, cc[Z80_TABLE_op][0x31]+cc[Z80_TABLE_op][0x18]); \
} \
} \
}
/***************************************************************
* JR_COND
***************************************************************/
#define JR_COND(cond,opcode) \
if( cond ) \
{ \
INT8 arg = (INT8)ARG(); /* ARG() also increments PC */ \
PC += arg; /* so don't do PC += ARG() */ \
CC(ex,opcode); \
change_pc(PCD); \
} \
else PC++; \
/***************************************************************
* CALL
***************************************************************/
#define CALL() \
EA = ARG16(); \
PUSH( pc ); \
PCD = EA; \
change_pc(PCD)
/***************************************************************
* CALL_COND
***************************************************************/
#define CALL_COND(cond,opcode) \
if( cond ) \
{ \
EA = ARG16(); \
PUSH( pc ); \
PCD = EA; \
CC(ex,opcode); \
change_pc(PCD); \
} \
else \
{ \
PC+=2; \
}
/***************************************************************
* RET_COND
***************************************************************/
#define RET_COND(cond,opcode) \
if( cond ) \
{ \
POP( pc ); \
change_pc(PCD); \
CC(ex,opcode); \
}
/***************************************************************
* RETN
***************************************************************/
#define RETN { \
LOG(("Z80 #%d RETN IFF1:%d IFF2:%d\n", cpu_getactivecpu(), IFF1, IFF2)); \
POP( pc ); \
change_pc(PCD); \
IFF1 = IFF2; \
}
/***************************************************************
* RETI
***************************************************************/
#define RETI { \
POP( pc ); \
change_pc(PCD); \
/* according to http://www.msxnet.org/tech/z80-documented.pdf */\
IFF1 = IFF2; \
}
/***************************************************************
* LD R,A
***************************************************************/
#define LD_R_A { \
R = A; \
R2 = A & 0x80; /* keep bit 7 of R */ \
}
/***************************************************************
* LD A,R
***************************************************************/
#define LD_A_R { \
A = (R & 0x7f) | R2; \
F = (F & CF) | SZ[A] | ( IFF2 << 2 ); \
}
/***************************************************************
* LD I,A
***************************************************************/
#define LD_I_A { \
I = A; \
}
/***************************************************************
* LD A,I
***************************************************************/
#define LD_A_I { \
A = I; \
F = (F & CF) | SZ[A] | ( IFF2 << 2 ); \
}
/***************************************************************
* RST
***************************************************************/
#define RST(addr) \
PUSH( pc ); \
PCD = addr; \
change_pc(PCD)
/***************************************************************
* INC r8
***************************************************************/
INLINE UINT8 INC(UINT8 value)
{
UINT8 res = value + 1;
F = (F & CF) | SZHV_inc[res];
return (UINT8)res;
}
/***************************************************************
* DEC r8
***************************************************************/
INLINE UINT8 DEC(UINT8 value)
{
UINT8 res = value - 1;
F = (F & CF) | SZHV_dec[res];
return res;
}
/***************************************************************
* RLCA
***************************************************************/
#define RLCA \
A = (A << 1) | (A >> 7); \
F = (F & (SF | ZF | PF)) | (A & (YF | XF | CF))
/***************************************************************
* RRCA
***************************************************************/
#define RRCA \
F = (F & (SF | ZF | PF)) | (A & CF); \
A = (A >> 1) | (A << 7); \
F |= (A & (YF | XF) )
/***************************************************************
* RLA
***************************************************************/
#define RLA { \
UINT8 res = (A << 1) | (F & CF); \
UINT8 c = (A & 0x80) ? CF : 0; \
F = (F & (SF | ZF | PF)) | c | (res & (YF | XF)); \
A = res; \
}
/***************************************************************
* RRA
***************************************************************/
#define RRA { \
UINT8 res = (A >> 1) | (F << 7); \
UINT8 c = (A & 0x01) ? CF : 0; \
F = (F & (SF | ZF | PF)) | c | (res & (YF | XF)); \
A = res; \
}
/***************************************************************
* RRD
***************************************************************/
#define RRD { \
UINT8 n = RM(HL); \
WM( HL, (n >> 4) | (A << 4) ); \
A = (A & 0xf0) | (n & 0x0f); \
F = (F & CF) | SZP[A]; \
}
/***************************************************************
* RLD
***************************************************************/
#define RLD { \
UINT8 n = RM(HL); \
WM( HL, (n << 4) | (A & 0x0f) ); \
A = (A & 0xf0) | (n >> 4); \
F = (F & CF) | SZP[A]; \
}
/***************************************************************
* ADD A,n
***************************************************************/
#if BIG_FLAGS_ARRAY
#define ADD(value) \
{ \
UINT32 ah = AFD & 0xff00; \
UINT32 res = (UINT8)((ah >> 8) + value); \
F = SZHVC_add[ah | res]; \
A = res; \
}
#else
#define ADD(value) \
{ \
unsigned val = value; \
unsigned res = A + val; \
F = SZ[(UINT8)res] | ((res >> 8) & CF) | \
((A ^ res ^ val) & HF) | \
(((val ^ A ^ 0x80) & (val ^ res) & 0x80) >> 5); \
A = (UINT8)res; \
}
#endif
/***************************************************************
* ADC A,n
***************************************************************/
#if BIG_FLAGS_ARRAY
#define ADC(value) \
{ \
UINT32 ah = AFD & 0xff00, c = AFD & 1; \
UINT32 res = (UINT8)((ah >> 8) + value + c); \
F = SZHVC_add[(c << 16) | ah | res]; \
A = res; \
}
#else
#define ADC(value) \
{ \
unsigned val = value; \
unsigned res = A + val + (F & CF); \
F = SZ[res & 0xff] | ((res >> 8) & CF) | \
((A ^ res ^ val) & HF) | \
(((val ^ A ^ 0x80) & (val ^ res) & 0x80) >> 5); \
A = res; \
}
#endif
/***************************************************************
* SUB n
***************************************************************/
#if BIG_FLAGS_ARRAY
#define SUB(value) \
{ \
UINT32 ah = AFD & 0xff00; \
UINT32 res = (UINT8)((ah >> 8) - value); \
F = SZHVC_sub[ah | res]; \
A = res; \
}
#else
#define SUB(value) \
{ \
unsigned val = value; \
unsigned res = A - val; \
F = SZ[res & 0xff] | ((res >> 8) & CF) | NF | \
((A ^ res ^ val) & HF) | \
(((val ^ A) & (A ^ res) & 0x80) >> 5); \
A = res; \
}
#endif
/***************************************************************
* SBC A,n
***************************************************************/
#if BIG_FLAGS_ARRAY
#define SBC(value) \
{ \
UINT32 ah = AFD & 0xff00, c = AFD & 1; \
UINT32 res = (UINT8)((ah >> 8) - value - c); \
F = SZHVC_sub[(c<<16) | ah | res]; \
A = res; \
}
#else
#define SBC(value) \
{ \
unsigned val = value; \
unsigned res = A - val - (F & CF); \
F = SZ[res & 0xff] | ((res >> 8) & CF) | NF | \
((A ^ res ^ val) & HF) | \
(((val ^ A) & (A ^ res) & 0x80) >> 5); \
A = res; \
}
#endif
/***************************************************************
* NEG
***************************************************************/
#define NEG { \
UINT8 value = A; \
A = 0; \
SUB(value); \
}
/***************************************************************
* DAA
***************************************************************/
#define DAA { \
UINT8 cf, nf, hf, lo, hi, diff; \
cf = F & CF; \
nf = F & NF; \
hf = F & HF; \
lo = A & 15; \
hi = A / 16; \
\
if (cf) \
{ \
diff = (lo <= 9 && !hf) ? 0x60 : 0x66; \
} \
else \
{ \
if (lo >= 10) \
{ \
diff = hi <= 8 ? 0x06 : 0x66; \
} \
else \
{ \
if (hi >= 10) \
{ \
diff = hf ? 0x66 : 0x60; \
} \
else \
{ \
diff = hf ? 0x06 : 0x00; \
} \
} \
} \
if (nf) A -= diff; \
else A += diff; \
\
F = SZP[A] | (F & NF); \
if (cf || (lo <= 9 ? hi >= 10 : hi >= 9)) F |= CF; \
if (nf ? hf && lo <= 5 : lo >= 10) F |= HF; \
}
/***************************************************************
* AND n
***************************************************************/
#define AND(value) \
A &= value; \
F = SZP[A] | HF
/***************************************************************
* OR n
***************************************************************/
#define OR(value) \
A |= value; \
F = SZP[A]
/***************************************************************
* XOR n
***************************************************************/
#define XOR(value) \
A ^= value; \
F = SZP[A]
/***************************************************************
* CP n
***************************************************************/
#if BIG_FLAGS_ARRAY
#define CP(value) \
{ \
unsigned val = value; \
UINT32 ah = AFD & 0xff00; \
UINT32 res = (UINT8)((ah >> 8) - val); \
F = (SZHVC_sub[ah | res] & ~(YF | XF)) | \
(val & (YF | XF)); \
}
#else
#define CP(value) \
{ \
unsigned val = value; \
unsigned res = A - val; \
F = (SZ[res & 0xff] & (SF | ZF)) | \
(val & (YF | XF)) | ((res >> 8) & CF) | NF | \
((A ^ res ^ val) & HF) | \
((((val ^ A) & (A ^ res)) >> 5) & VF); \
}
#endif
/***************************************************************
* EX AF,AF'
***************************************************************/
#define EX_AF { \
PAIR tmp; \
tmp = Z80.af; Z80.af = Z80.af2; Z80.af2 = tmp; \
}
/***************************************************************
* EX DE,HL
***************************************************************/
#define EX_DE_HL { \
PAIR tmp; \
tmp = Z80.de; Z80.de = Z80.hl; Z80.hl = tmp; \
}
/***************************************************************
* EXX
***************************************************************/
#define EXX { \
PAIR tmp; \
tmp = Z80.bc; Z80.bc = Z80.bc2; Z80.bc2 = tmp; \
tmp = Z80.de; Z80.de = Z80.de2; Z80.de2 = tmp; \
tmp = Z80.hl; Z80.hl = Z80.hl2; Z80.hl2 = tmp; \
}
/***************************************************************
* EX (SP),r16
***************************************************************/
#define EXSP(DR) \
{ \
PAIR tmp = { { 0, 0, 0, 0 } }; \
RM16( SPD, &tmp ); \
WM16( SPD, &Z80.DR ); \
Z80.DR = tmp; \
}
/***************************************************************
* ADD16
***************************************************************/
#define ADD16(DR,SR) \
{ \
UINT32 res = Z80.DR.d + Z80.SR.d; \
F = (F & (SF | ZF | VF)) | \
(((Z80.DR.d ^ res ^ Z80.SR.d) >> 8) & HF) | \
((res >> 16) & CF) | ((res >> 8) & (YF | XF)); \
Z80.DR.w.l = (UINT16)res; \
}
/***************************************************************
* ADC r16,r16
***************************************************************/
#define ADC16(Reg) \
{ \
UINT32 res = HLD + Z80.Reg.d + (F & CF); \
F = (((HLD ^ res ^ Z80.Reg.d) >> 8) & HF) | \
((res >> 16) & CF) | \
((res >> 8) & (SF | YF | XF)) | \
((res & 0xffff) ? 0 : ZF) | \
(((Z80.Reg.d ^ HLD ^ 0x8000) & (Z80.Reg.d ^ res) & 0x8000) >> 13); \
HL = (UINT16)res; \
}
/***************************************************************
* SBC r16,r16
***************************************************************/
#define SBC16(Reg) \
{ \
UINT32 res = HLD - Z80.Reg.d - (F & CF); \
F = (((HLD ^ res ^ Z80.Reg.d) >> 8) & HF) | NF | \
((res >> 16) & CF) | \
((res >> 8) & (SF | YF | XF)) | \
((res & 0xffff) ? 0 : ZF) | \
(((Z80.Reg.d ^ HLD) & (HLD ^ res) &0x8000) >> 13); \
HL = (UINT16)res; \
}
/***************************************************************
* RLC r8
***************************************************************/
INLINE UINT8 RLC(UINT8 value)
{
unsigned res = value;
unsigned c = (res & 0x80) ? CF : 0;
res = ((res << 1) | (res >> 7)) & 0xff;
F = SZP[res] | c;
return res;
}
/***************************************************************
* RRC r8
***************************************************************/
INLINE UINT8 RRC(UINT8 value)
{
unsigned res = value;
unsigned c = (res & 0x01) ? CF : 0;
res = ((res >> 1) | (res << 7)) & 0xff;
F = SZP[res] | c;
return res;
}
/***************************************************************
* RL r8
***************************************************************/
INLINE UINT8 RL(UINT8 value)
{
unsigned res = value;
unsigned c = (res & 0x80) ? CF : 0;
res = ((res << 1) | (F & CF)) & 0xff;
F = SZP[res] | c;
return res;
}
/***************************************************************
* RR r8
***************************************************************/
INLINE UINT8 RR(UINT8 value)
{
unsigned res = value;
unsigned c = (res & 0x01) ? CF : 0;
res = ((res >> 1) | (F << 7)) & 0xff;
F = SZP[res] | c;
return res;
}
/***************************************************************
* SLA r8
***************************************************************/
INLINE UINT8 SLA(UINT8 value)
{
unsigned res = value;
unsigned c = (res & 0x80) ? CF : 0;
res = (res << 1) & 0xff;
F = SZP[res] | c;
return res;
}
/***************************************************************
* SRA r8
***************************************************************/
INLINE UINT8 SRA(UINT8 value)
{
unsigned res = value;
unsigned c = (res & 0x01) ? CF : 0;
res = ((res >> 1) | (res & 0x80)) & 0xff;
F = SZP[res] | c;
return res;
}
/***************************************************************
* SLL r8
***************************************************************/
INLINE UINT8 SLL(UINT8 value)
{
unsigned res = value;
unsigned c = (res & 0x80) ? CF : 0;
res = ((res << 1) | 0x01) & 0xff;
F = SZP[res] | c;
return res;
}
/***************************************************************
* SRL r8
***************************************************************/
INLINE UINT8 SRL(UINT8 value)
{
unsigned res = value;
unsigned c = (res & 0x01) ? CF : 0;
res = (res >> 1) & 0xff;
F = SZP[res] | c;
return res;
}
/***************************************************************
* BIT bit,r8
***************************************************************/
#undef BIT
#define BIT(bit,reg) \
F = (F & CF) | HF | SZ_BIT[reg & (1<<bit)]
/***************************************************************
* BIT bit,(IX/Y+o)
***************************************************************/
#define BIT_XY(bit,reg) \
F = (F & CF) | HF | (SZ_BIT[reg & (1<<bit)] & ~(YF|XF)) | ((EA>>8) & (YF|XF))
/***************************************************************
* RES bit,r8
***************************************************************/
INLINE UINT8 RES(UINT8 bit, UINT8 value)
{
return value & ~(1<<bit);
}
/***************************************************************
* SET bit,r8
***************************************************************/
INLINE UINT8 SET(UINT8 bit, UINT8 value)
{
return value | (1<<bit);
}
/***************************************************************
* LDI
***************************************************************/
#define LDI { \
UINT8 io = RM(HL); \
WM( DE, io ); \
F &= SF | ZF | CF; \
if( (A + io) & 0x02 ) F |= YF; /* bit 1 -> flag 5 */ \
if( (A + io) & 0x08 ) F |= XF; /* bit 3 -> flag 3 */ \
HL++; DE++; BC--; \
if( BC ) F |= VF; \
}
/***************************************************************
* CPI
***************************************************************/
#define CPI { \
UINT8 val = RM(HL); \
UINT8 res = A - val; \
HL++; BC--; \
F = (F & CF) | (SZ[res]&~(YF|XF)) | ((A^val^res)&HF) | NF; \
if( F & HF ) res -= 1; \
if( res & 0x02 ) F |= YF; /* bit 1 -> flag 5 */ \
if( res & 0x08 ) F |= XF; /* bit 3 -> flag 3 */ \
if( BC ) F |= VF; \
}
/***************************************************************
* INI
***************************************************************/
#define INI { \
unsigned t; \
UINT8 io = IN(BC); \
B--; \
WM( HL, io ); \
HL++; \
F = SZ[B]; \
t = (unsigned)((C + 1) & 0xff) + (unsigned)io; \
if( io & SF ) F |= NF; \
if( t & 0x100 ) F |= HF | CF; \
F |= SZP[(UINT8)(t & 0x07) ^ B] & PF; \
}
/***************************************************************
* OUTI
***************************************************************/
#define OUTI { \
unsigned t; \
UINT8 io = RM(HL); \
B--; \
OUT( BC, io ); \
HL++; \
F = SZ[B]; \
t = (unsigned)L + (unsigned)io; \
if( io & SF ) F |= NF; \
if( t & 0x100 ) F |= HF | CF; \
F |= SZP[(UINT8)(t & 0x07) ^ B] & PF; \
}
/***************************************************************
* LDD
***************************************************************/
#define LDD { \
UINT8 io = RM(HL); \
WM( DE, io ); \
F &= SF | ZF | CF; \
if( (A + io) & 0x02 ) F |= YF; /* bit 1 -> flag 5 */ \
if( (A + io) & 0x08 ) F |= XF; /* bit 3 -> flag 3 */ \
HL--; DE--; BC--; \
if( BC ) F |= VF; \
}
/***************************************************************
* CPD
***************************************************************/
#define CPD { \
UINT8 val = RM(HL); \
UINT8 res = A - val; \
HL--; BC--; \
F = (F & CF) | (SZ[res]&~(YF|XF)) | ((A^val^res)&HF) | NF; \
if( F & HF ) res -= 1; \
if( res & 0x02 ) F |= YF; /* bit 1 -> flag 5 */ \
if( res & 0x08 ) F |= XF; /* bit 3 -> flag 3 */ \
if( BC ) F |= VF; \
}
/***************************************************************
* IND
***************************************************************/
#define IND { \
unsigned t; \
UINT8 io = IN(BC); \
B--; \
WM( HL, io ); \
HL--; \
F = SZ[B]; \
t = ((unsigned)(C - 1) & 0xff) + (unsigned)io; \
if( io & SF ) F |= NF; \
if( t & 0x100 ) F |= HF | CF; \
F |= SZP[(UINT8)(t & 0x07) ^ B] & PF; \
}
/***************************************************************
* OUTD
***************************************************************/
#define OUTD { \
unsigned t; \
UINT8 io = RM(HL); \
B--; \
OUT( BC, io ); \
HL--; \
F = SZ[B]; \
t = (unsigned)L + (unsigned)io; \
if( io & SF ) F |= NF; \
if( t & 0x100 ) F |= HF | CF; \
F |= SZP[(UINT8)(t & 0x07) ^ B] & PF; \
}
/***************************************************************
* LDIR
***************************************************************/
#define LDIR \
LDI; \
if( BC ) \
{ \
PC -= 2; \
CC(ex,0xb0); \
}
/***************************************************************
* CPIR
***************************************************************/
#define CPIR \
CPI; \
if( BC && !(F & ZF) ) \
{ \
PC -= 2; \
CC(ex,0xb1); \
}
/***************************************************************
* INIR
***************************************************************/
#define INIR \
INI; \
if( B ) \
{ \
PC -= 2; \
CC(ex,0xb2); \
}
/***************************************************************
* OTIR
***************************************************************/
#define OTIR \
OUTI; \
if( B ) \
{ \
PC -= 2; \
CC(ex,0xb3); \
}
/***************************************************************
* LDDR
***************************************************************/
#define LDDR \
LDD; \
if( BC ) \
{ \
PC -= 2; \
CC(ex,0xb8); \
}
/***************************************************************
* CPDR
***************************************************************/
#define CPDR \
CPD; \
if( BC && !(F & ZF) ) \
{ \
PC -= 2; \
CC(ex,0xb9); \
}
/***************************************************************
* INDR
***************************************************************/
#define INDR \
IND; \
if( B ) \
{ \
PC -= 2; \
CC(ex,0xba); \
}
/***************************************************************
* OTDR
***************************************************************/
#define OTDR \
OUTD; \
if( B ) \
{ \
PC -= 2; \
CC(ex,0xbb); \
}
/***************************************************************
* EI
***************************************************************/
#define EI { \
IFF1 = IFF2 = 1; \
Z80.after_ei = TRUE; \
}
/**********************************************************
* opcodes with CB prefix
* rotate, shift and bit operations
**********************************************************/
OP(cb,00) { B = RLC(B); } /* RLC B */
OP(cb,01) { C = RLC(C); } /* RLC C */
OP(cb,02) { D = RLC(D); } /* RLC D */
OP(cb,03) { E = RLC(E); } /* RLC E */
OP(cb,04) { H = RLC(H); } /* RLC H */
OP(cb,05) { L = RLC(L); } /* RLC L */
OP(cb,06) { WM( HL, RLC(RM(HL)) ); } /* RLC (HL) */
OP(cb,07) { A = RLC(A); } /* RLC A */
OP(cb,08) { B = RRC(B); } /* RRC B */
OP(cb,09) { C = RRC(C); } /* RRC C */
OP(cb,0a) { D = RRC(D); } /* RRC D */
OP(cb,0b) { E = RRC(E); } /* RRC E */
OP(cb,0c) { H = RRC(H); } /* RRC H */
OP(cb,0d) { L = RRC(L); } /* RRC L */
OP(cb,0e) { WM( HL, RRC(RM(HL)) ); } /* RRC (HL) */
OP(cb,0f) { A = RRC(A); } /* RRC A */
OP(cb,10) { B = RL(B); } /* RL B */
OP(cb,11) { C = RL(C); } /* RL C */
OP(cb,12) { D = RL(D); } /* RL D */
OP(cb,13) { E = RL(E); } /* RL E */
OP(cb,14) { H = RL(H); } /* RL H */
OP(cb,15) { L = RL(L); } /* RL L */
OP(cb,16) { WM( HL, RL(RM(HL)) ); } /* RL (HL) */
OP(cb,17) { A = RL(A); } /* RL A */
OP(cb,18) { B = RR(B); } /* RR B */
OP(cb,19) { C = RR(C); } /* RR C */
OP(cb,1a) { D = RR(D); } /* RR D */
OP(cb,1b) { E = RR(E); } /* RR E */
OP(cb,1c) { H = RR(H); } /* RR H */
OP(cb,1d) { L = RR(L); } /* RR L */
OP(cb,1e) { WM( HL, RR(RM(HL)) ); } /* RR (HL) */
OP(cb,1f) { A = RR(A); } /* RR A */
OP(cb,20) { B = SLA(B); } /* SLA B */
OP(cb,21) { C = SLA(C); } /* SLA C */
OP(cb,22) { D = SLA(D); } /* SLA D */
OP(cb,23) { E = SLA(E); } /* SLA E */
OP(cb,24) { H = SLA(H); } /* SLA H */
OP(cb,25) { L = SLA(L); } /* SLA L */
OP(cb,26) { WM( HL, SLA(RM(HL)) ); } /* SLA (HL) */
OP(cb,27) { A = SLA(A); } /* SLA A */
OP(cb,28) { B = SRA(B); } /* SRA B */
OP(cb,29) { C = SRA(C); } /* SRA C */
OP(cb,2a) { D = SRA(D); } /* SRA D */
OP(cb,2b) { E = SRA(E); } /* SRA E */
OP(cb,2c) { H = SRA(H); } /* SRA H */
OP(cb,2d) { L = SRA(L); } /* SRA L */
OP(cb,2e) { WM( HL, SRA(RM(HL)) ); } /* SRA (HL) */
OP(cb,2f) { A = SRA(A); } /* SRA A */
OP(cb,30) { B = SLL(B); } /* SLL B */
OP(cb,31) { C = SLL(C); } /* SLL C */
OP(cb,32) { D = SLL(D); } /* SLL D */
OP(cb,33) { E = SLL(E); } /* SLL E */
OP(cb,34) { H = SLL(H); } /* SLL H */
OP(cb,35) { L = SLL(L); } /* SLL L */
OP(cb,36) { WM( HL, SLL(RM(HL)) ); } /* SLL (HL) */
OP(cb,37) { A = SLL(A); } /* SLL A */
OP(cb,38) { B = SRL(B); } /* SRL B */
OP(cb,39) { C = SRL(C); } /* SRL C */
OP(cb,3a) { D = SRL(D); } /* SRL D */
OP(cb,3b) { E = SRL(E); } /* SRL E */
OP(cb,3c) { H = SRL(H); } /* SRL H */
OP(cb,3d) { L = SRL(L); } /* SRL L */
OP(cb,3e) { WM( HL, SRL(RM(HL)) ); } /* SRL (HL) */
OP(cb,3f) { A = SRL(A); } /* SRL A */
OP(cb,40) { BIT(0,B); } /* BIT 0,B */
OP(cb,41) { BIT(0,C); } /* BIT 0,C */
OP(cb,42) { BIT(0,D); } /* BIT 0,D */
OP(cb,43) { BIT(0,E); } /* BIT 0,E */
OP(cb,44) { BIT(0,H); } /* BIT 0,H */
OP(cb,45) { BIT(0,L); } /* BIT 0,L */
OP(cb,46) { BIT(0,RM(HL)); } /* BIT 0,(HL) */
OP(cb,47) { BIT(0,A); } /* BIT 0,A */
OP(cb,48) { BIT(1,B); } /* BIT 1,B */
OP(cb,49) { BIT(1,C); } /* BIT 1,C */
OP(cb,4a) { BIT(1,D); } /* BIT 1,D */
OP(cb,4b) { BIT(1,E); } /* BIT 1,E */
OP(cb,4c) { BIT(1,H); } /* BIT 1,H */
OP(cb,4d) { BIT(1,L); } /* BIT 1,L */
OP(cb,4e) { BIT(1,RM(HL)); } /* BIT 1,(HL) */
OP(cb,4f) { BIT(1,A); } /* BIT 1,A */
OP(cb,50) { BIT(2,B); } /* BIT 2,B */
OP(cb,51) { BIT(2,C); } /* BIT 2,C */
OP(cb,52) { BIT(2,D); } /* BIT 2,D */
OP(cb,53) { BIT(2,E); } /* BIT 2,E */
OP(cb,54) { BIT(2,H); } /* BIT 2,H */
OP(cb,55) { BIT(2,L); } /* BIT 2,L */
OP(cb,56) { BIT(2,RM(HL)); } /* BIT 2,(HL) */
OP(cb,57) { BIT(2,A); } /* BIT 2,A */
OP(cb,58) { BIT(3,B); } /* BIT 3,B */
OP(cb,59) { BIT(3,C); } /* BIT 3,C */
OP(cb,5a) { BIT(3,D); } /* BIT 3,D */
OP(cb,5b) { BIT(3,E); } /* BIT 3,E */
OP(cb,5c) { BIT(3,H); } /* BIT 3,H */
OP(cb,5d) { BIT(3,L); } /* BIT 3,L */
OP(cb,5e) { BIT(3,RM(HL)); } /* BIT 3,(HL) */
OP(cb,5f) { BIT(3,A); } /* BIT 3,A */
OP(cb,60) { BIT(4,B); } /* BIT 4,B */
OP(cb,61) { BIT(4,C); } /* BIT 4,C */
OP(cb,62) { BIT(4,D); } /* BIT 4,D */
OP(cb,63) { BIT(4,E); } /* BIT 4,E */
OP(cb,64) { BIT(4,H); } /* BIT 4,H */
OP(cb,65) { BIT(4,L); } /* BIT 4,L */
OP(cb,66) { BIT(4,RM(HL)); } /* BIT 4,(HL) */
OP(cb,67) { BIT(4,A); } /* BIT 4,A */
OP(cb,68) { BIT(5,B); } /* BIT 5,B */
OP(cb,69) { BIT(5,C); } /* BIT 5,C */
OP(cb,6a) { BIT(5,D); } /* BIT 5,D */
OP(cb,6b) { BIT(5,E); } /* BIT 5,E */
OP(cb,6c) { BIT(5,H); } /* BIT 5,H */
OP(cb,6d) { BIT(5,L); } /* BIT 5,L */
OP(cb,6e) { BIT(5,RM(HL)); } /* BIT 5,(HL) */
OP(cb,6f) { BIT(5,A); } /* BIT 5,A */
OP(cb,70) { BIT(6,B); } /* BIT 6,B */
OP(cb,71) { BIT(6,C); } /* BIT 6,C */
OP(cb,72) { BIT(6,D); } /* BIT 6,D */
OP(cb,73) { BIT(6,E); } /* BIT 6,E */
OP(cb,74) { BIT(6,H); } /* BIT 6,H */
OP(cb,75) { BIT(6,L); } /* BIT 6,L */
OP(cb,76) { BIT(6,RM(HL)); } /* BIT 6,(HL) */
OP(cb,77) { BIT(6,A); } /* BIT 6,A */
OP(cb,78) { BIT(7,B); } /* BIT 7,B */
OP(cb,79) { BIT(7,C); } /* BIT 7,C */
OP(cb,7a) { BIT(7,D); } /* BIT 7,D */
OP(cb,7b) { BIT(7,E); } /* BIT 7,E */
OP(cb,7c) { BIT(7,H); } /* BIT 7,H */
OP(cb,7d) { BIT(7,L); } /* BIT 7,L */
OP(cb,7e) { BIT(7,RM(HL)); } /* BIT 7,(HL) */
OP(cb,7f) { BIT(7,A); } /* BIT 7,A */
OP(cb,80) { B = RES(0,B); } /* RES 0,B */
OP(cb,81) { C = RES(0,C); } /* RES 0,C */
OP(cb,82) { D = RES(0,D); } /* RES 0,D */
OP(cb,83) { E = RES(0,E); } /* RES 0,E */
OP(cb,84) { H = RES(0,H); } /* RES 0,H */
OP(cb,85) { L = RES(0,L); } /* RES 0,L */
OP(cb,86) { WM( HL, RES(0,RM(HL)) ); } /* RES 0,(HL) */
OP(cb,87) { A = RES(0,A); } /* RES 0,A */
OP(cb,88) { B = RES(1,B); } /* RES 1,B */
OP(cb,89) { C = RES(1,C); } /* RES 1,C */
OP(cb,8a) { D = RES(1,D); } /* RES 1,D */
OP(cb,8b) { E = RES(1,E); } /* RES 1,E */
OP(cb,8c) { H = RES(1,H); } /* RES 1,H */
OP(cb,8d) { L = RES(1,L); } /* RES 1,L */
OP(cb,8e) { WM( HL, RES(1,RM(HL)) ); } /* RES 1,(HL) */
OP(cb,8f) { A = RES(1,A); } /* RES 1,A */
OP(cb,90) { B = RES(2,B); } /* RES 2,B */
OP(cb,91) { C = RES(2,C); } /* RES 2,C */
OP(cb,92) { D = RES(2,D); } /* RES 2,D */
OP(cb,93) { E = RES(2,E); } /* RES 2,E */
OP(cb,94) { H = RES(2,H); } /* RES 2,H */
OP(cb,95) { L = RES(2,L); } /* RES 2,L */
OP(cb,96) { WM( HL, RES(2,RM(HL)) ); } /* RES 2,(HL) */
OP(cb,97) { A = RES(2,A); } /* RES 2,A */
OP(cb,98) { B = RES(3,B); } /* RES 3,B */
OP(cb,99) { C = RES(3,C); } /* RES 3,C */
OP(cb,9a) { D = RES(3,D); } /* RES 3,D */
OP(cb,9b) { E = RES(3,E); } /* RES 3,E */
OP(cb,9c) { H = RES(3,H); } /* RES 3,H */
OP(cb,9d) { L = RES(3,L); } /* RES 3,L */
OP(cb,9e) { WM( HL, RES(3,RM(HL)) ); } /* RES 3,(HL) */
OP(cb,9f) { A = RES(3,A); } /* RES 3,A */
OP(cb,a0) { B = RES(4,B); } /* RES 4,B */
OP(cb,a1) { C = RES(4,C); } /* RES 4,C */
OP(cb,a2) { D = RES(4,D); } /* RES 4,D */
OP(cb,a3) { E = RES(4,E); } /* RES 4,E */
OP(cb,a4) { H = RES(4,H); } /* RES 4,H */
OP(cb,a5) { L = RES(4,L); } /* RES 4,L */
OP(cb,a6) { WM( HL, RES(4,RM(HL)) ); } /* RES 4,(HL) */
OP(cb,a7) { A = RES(4,A); } /* RES 4,A */
OP(cb,a8) { B = RES(5,B); } /* RES 5,B */
OP(cb,a9) { C = RES(5,C); } /* RES 5,C */
OP(cb,aa) { D = RES(5,D); } /* RES 5,D */
OP(cb,ab) { E = RES(5,E); } /* RES 5,E */
OP(cb,ac) { H = RES(5,H); } /* RES 5,H */
OP(cb,ad) { L = RES(5,L); } /* RES 5,L */
OP(cb,ae) { WM( HL, RES(5,RM(HL)) ); } /* RES 5,(HL) */
OP(cb,af) { A = RES(5,A); } /* RES 5,A */
OP(cb,b0) { B = RES(6,B); } /* RES 6,B */
OP(cb,b1) { C = RES(6,C); } /* RES 6,C */
OP(cb,b2) { D = RES(6,D); } /* RES 6,D */
OP(cb,b3) { E = RES(6,E); } /* RES 6,E */
OP(cb,b4) { H = RES(6,H); } /* RES 6,H */
OP(cb,b5) { L = RES(6,L); } /* RES 6,L */
OP(cb,b6) { WM( HL, RES(6,RM(HL)) ); } /* RES 6,(HL) */
OP(cb,b7) { A = RES(6,A); } /* RES 6,A */
OP(cb,b8) { B = RES(7,B); } /* RES 7,B */
OP(cb,b9) { C = RES(7,C); } /* RES 7,C */
OP(cb,ba) { D = RES(7,D); } /* RES 7,D */
OP(cb,bb) { E = RES(7,E); } /* RES 7,E */
OP(cb,bc) { H = RES(7,H); } /* RES 7,H */
OP(cb,bd) { L = RES(7,L); } /* RES 7,L */
OP(cb,be) { WM( HL, RES(7,RM(HL)) ); } /* RES 7,(HL) */
OP(cb,bf) { A = RES(7,A); } /* RES 7,A */
OP(cb,c0) { B = SET(0,B); } /* SET 0,B */
OP(cb,c1) { C = SET(0,C); } /* SET 0,C */
OP(cb,c2) { D = SET(0,D); } /* SET 0,D */
OP(cb,c3) { E = SET(0,E); } /* SET 0,E */
OP(cb,c4) { H = SET(0,H); } /* SET 0,H */
OP(cb,c5) { L = SET(0,L); } /* SET 0,L */
OP(cb,c6) { WM( HL, SET(0,RM(HL)) ); } /* SET 0,(HL) */
OP(cb,c7) { A = SET(0,A); } /* SET 0,A */
OP(cb,c8) { B = SET(1,B); } /* SET 1,B */
OP(cb,c9) { C = SET(1,C); } /* SET 1,C */
OP(cb,ca) { D = SET(1,D); } /* SET 1,D */
OP(cb,cb) { E = SET(1,E); } /* SET 1,E */
OP(cb,cc) { H = SET(1,H); } /* SET 1,H */
OP(cb,cd) { L = SET(1,L); } /* SET 1,L */
OP(cb,ce) { WM( HL, SET(1,RM(HL)) ); } /* SET 1,(HL) */
OP(cb,cf) { A = SET(1,A); } /* SET 1,A */
OP(cb,d0) { B = SET(2,B); } /* SET 2,B */
OP(cb,d1) { C = SET(2,C); } /* SET 2,C */
OP(cb,d2) { D = SET(2,D); } /* SET 2,D */
OP(cb,d3) { E = SET(2,E); } /* SET 2,E */
OP(cb,d4) { H = SET(2,H); } /* SET 2,H */
OP(cb,d5) { L = SET(2,L); } /* SET 2,L */
OP(cb,d6) { WM( HL, SET(2,RM(HL)) ); } /* SET 2,(HL) */
OP(cb,d7) { A = SET(2,A); } /* SET 2,A */
OP(cb,d8) { B = SET(3,B); } /* SET 3,B */
OP(cb,d9) { C = SET(3,C); } /* SET 3,C */
OP(cb,da) { D = SET(3,D); } /* SET 3,D */
OP(cb,db) { E = SET(3,E); } /* SET 3,E */
OP(cb,dc) { H = SET(3,H); } /* SET 3,H */
OP(cb,dd) { L = SET(3,L); } /* SET 3,L */
OP(cb,de) { WM( HL, SET(3,RM(HL)) ); } /* SET 3,(HL) */
OP(cb,df) { A = SET(3,A); } /* SET 3,A */
OP(cb,e0) { B = SET(4,B); } /* SET 4,B */
OP(cb,e1) { C = SET(4,C); } /* SET 4,C */
OP(cb,e2) { D = SET(4,D); } /* SET 4,D */
OP(cb,e3) { E = SET(4,E); } /* SET 4,E */
OP(cb,e4) { H = SET(4,H); } /* SET 4,H */
OP(cb,e5) { L = SET(4,L); } /* SET 4,L */
OP(cb,e6) { WM( HL, SET(4,RM(HL)) ); } /* SET 4,(HL) */
OP(cb,e7) { A = SET(4,A); } /* SET 4,A */
OP(cb,e8) { B = SET(5,B); } /* SET 5,B */
OP(cb,e9) { C = SET(5,C); } /* SET 5,C */
OP(cb,ea) { D = SET(5,D); } /* SET 5,D */
OP(cb,eb) { E = SET(5,E); } /* SET 5,E */
OP(cb,ec) { H = SET(5,H); } /* SET 5,H */
OP(cb,ed) { L = SET(5,L); } /* SET 5,L */
OP(cb,ee) { WM( HL, SET(5,RM(HL)) ); } /* SET 5,(HL) */
OP(cb,ef) { A = SET(5,A); } /* SET 5,A */
OP(cb,f0) { B = SET(6,B); } /* SET 6,B */
OP(cb,f1) { C = SET(6,C); } /* SET 6,C */
OP(cb,f2) { D = SET(6,D); } /* SET 6,D */
OP(cb,f3) { E = SET(6,E); } /* SET 6,E */
OP(cb,f4) { H = SET(6,H); } /* SET 6,H */
OP(cb,f5) { L = SET(6,L); } /* SET 6,L */
OP(cb,f6) { WM( HL, SET(6,RM(HL)) ); } /* SET 6,(HL) */
OP(cb,f7) { A = SET(6,A); } /* SET 6,A */
OP(cb,f8) { B = SET(7,B); } /* SET 7,B */
OP(cb,f9) { C = SET(7,C); } /* SET 7,C */
OP(cb,fa) { D = SET(7,D); } /* SET 7,D */
OP(cb,fb) { E = SET(7,E); } /* SET 7,E */
OP(cb,fc) { H = SET(7,H); } /* SET 7,H */
OP(cb,fd) { L = SET(7,L); } /* SET 7,L */
OP(cb,fe) { WM( HL, SET(7,RM(HL)) ); } /* SET 7,(HL) */
OP(cb,ff) { A = SET(7,A); } /* SET 7,A */
/**********************************************************
* opcodes with DD/FD CB prefix
* rotate, shift and bit operations with (IX+o)
**********************************************************/
OP(xycb,00) { B = RLC( RM(EA) ); WM( EA,B ); } /* RLC B=(XY+o) */
OP(xycb,01) { C = RLC( RM(EA) ); WM( EA,C ); } /* RLC C=(XY+o) */
OP(xycb,02) { D = RLC( RM(EA) ); WM( EA,D ); } /* RLC D=(XY+o) */
OP(xycb,03) { E = RLC( RM(EA) ); WM( EA,E ); } /* RLC E=(XY+o) */
OP(xycb,04) { H = RLC( RM(EA) ); WM( EA,H ); } /* RLC H=(XY+o) */
OP(xycb,05) { L = RLC( RM(EA) ); WM( EA,L ); } /* RLC L=(XY+o) */
OP(xycb,06) { WM( EA, RLC( RM(EA) ) ); } /* RLC (XY+o) */
OP(xycb,07) { A = RLC( RM(EA) ); WM( EA,A ); } /* RLC A=(XY+o) */
OP(xycb,08) { B = RRC( RM(EA) ); WM( EA,B ); } /* RRC B=(XY+o) */
OP(xycb,09) { C = RRC( RM(EA) ); WM( EA,C ); } /* RRC C=(XY+o) */
OP(xycb,0a) { D = RRC( RM(EA) ); WM( EA,D ); } /* RRC D=(XY+o) */
OP(xycb,0b) { E = RRC( RM(EA) ); WM( EA,E ); } /* RRC E=(XY+o) */
OP(xycb,0c) { H = RRC( RM(EA) ); WM( EA,H ); } /* RRC H=(XY+o) */
OP(xycb,0d) { L = RRC( RM(EA) ); WM( EA,L ); } /* RRC L=(XY+o) */
OP(xycb,0e) { WM( EA,RRC( RM(EA) ) ); } /* RRC (XY+o) */
OP(xycb,0f) { A = RRC( RM(EA) ); WM( EA,A ); } /* RRC A=(XY+o) */
OP(xycb,10) { B = RL( RM(EA) ); WM( EA,B ); } /* RL B=(XY+o) */
OP(xycb,11) { C = RL( RM(EA) ); WM( EA,C ); } /* RL C=(XY+o) */
OP(xycb,12) { D = RL( RM(EA) ); WM( EA,D ); } /* RL D=(XY+o) */
OP(xycb,13) { E = RL( RM(EA) ); WM( EA,E ); } /* RL E=(XY+o) */
OP(xycb,14) { H = RL( RM(EA) ); WM( EA,H ); } /* RL H=(XY+o) */
OP(xycb,15) { L = RL( RM(EA) ); WM( EA,L ); } /* RL L=(XY+o) */
OP(xycb,16) { WM( EA,RL( RM(EA) ) ); } /* RL (XY+o) */
OP(xycb,17) { A = RL( RM(EA) ); WM( EA,A ); } /* RL A=(XY+o) */
OP(xycb,18) { B = RR( RM(EA) ); WM( EA,B ); } /* RR B=(XY+o) */
OP(xycb,19) { C = RR( RM(EA) ); WM( EA,C ); } /* RR C=(XY+o) */
OP(xycb,1a) { D = RR( RM(EA) ); WM( EA,D ); } /* RR D=(XY+o) */
OP(xycb,1b) { E = RR( RM(EA) ); WM( EA,E ); } /* RR E=(XY+o) */
OP(xycb,1c) { H = RR( RM(EA) ); WM( EA,H ); } /* RR H=(XY+o) */
OP(xycb,1d) { L = RR( RM(EA) ); WM( EA,L ); } /* RR L=(XY+o) */
OP(xycb,1e) { WM( EA,RR( RM(EA) ) ); } /* RR (XY+o) */
OP(xycb,1f) { A = RR( RM(EA) ); WM( EA,A ); } /* RR A=(XY+o) */
OP(xycb,20) { B = SLA( RM(EA) ); WM( EA,B ); } /* SLA B=(XY+o) */
OP(xycb,21) { C = SLA( RM(EA) ); WM( EA,C ); } /* SLA C=(XY+o) */
OP(xycb,22) { D = SLA( RM(EA) ); WM( EA,D ); } /* SLA D=(XY+o) */
OP(xycb,23) { E = SLA( RM(EA) ); WM( EA,E ); } /* SLA E=(XY+o) */
OP(xycb,24) { H = SLA( RM(EA) ); WM( EA,H ); } /* SLA H=(XY+o) */
OP(xycb,25) { L = SLA( RM(EA) ); WM( EA,L ); } /* SLA L=(XY+o) */
OP(xycb,26) { WM( EA,SLA( RM(EA) ) ); } /* SLA (XY+o) */
OP(xycb,27) { A = SLA( RM(EA) ); WM( EA,A ); } /* SLA A=(XY+o) */
OP(xycb,28) { B = SRA( RM(EA) ); WM( EA,B ); } /* SRA B=(XY+o) */
OP(xycb,29) { C = SRA( RM(EA) ); WM( EA,C ); } /* SRA C=(XY+o) */
OP(xycb,2a) { D = SRA( RM(EA) ); WM( EA,D ); } /* SRA D=(XY+o) */
OP(xycb,2b) { E = SRA( RM(EA) ); WM( EA,E ); } /* SRA E=(XY+o) */
OP(xycb,2c) { H = SRA( RM(EA) ); WM( EA,H ); } /* SRA H=(XY+o) */
OP(xycb,2d) { L = SRA( RM(EA) ); WM( EA,L ); } /* SRA L=(XY+o) */
OP(xycb,2e) { WM( EA,SRA( RM(EA) ) ); } /* SRA (XY+o) */
OP(xycb,2f) { A = SRA( RM(EA) ); WM( EA,A ); } /* SRA A=(XY+o) */
OP(xycb,30) { B = SLL( RM(EA) ); WM( EA,B ); } /* SLL B=(XY+o) */
OP(xycb,31) { C = SLL( RM(EA) ); WM( EA,C ); } /* SLL C=(XY+o) */
OP(xycb,32) { D = SLL( RM(EA) ); WM( EA,D ); } /* SLL D=(XY+o) */
OP(xycb,33) { E = SLL( RM(EA) ); WM( EA,E ); } /* SLL E=(XY+o) */
OP(xycb,34) { H = SLL( RM(EA) ); WM( EA,H ); } /* SLL H=(XY+o) */
OP(xycb,35) { L = SLL( RM(EA) ); WM( EA,L ); } /* SLL L=(XY+o) */
OP(xycb,36) { WM( EA,SLL( RM(EA) ) ); } /* SLL (XY+o) */
OP(xycb,37) { A = SLL( RM(EA) ); WM( EA,A ); } /* SLL A=(XY+o) */
OP(xycb,38) { B = SRL( RM(EA) ); WM( EA,B ); } /* SRL B=(XY+o) */
OP(xycb,39) { C = SRL( RM(EA) ); WM( EA,C ); } /* SRL C=(XY+o) */
OP(xycb,3a) { D = SRL( RM(EA) ); WM( EA,D ); } /* SRL D=(XY+o) */
OP(xycb,3b) { E = SRL( RM(EA) ); WM( EA,E ); } /* SRL E=(XY+o) */
OP(xycb,3c) { H = SRL( RM(EA) ); WM( EA,H ); } /* SRL H=(XY+o) */
OP(xycb,3d) { L = SRL( RM(EA) ); WM( EA,L ); } /* SRL L=(XY+o) */
OP(xycb,3e) { WM( EA,SRL( RM(EA) ) ); } /* SRL (XY+o) */
OP(xycb,3f) { A = SRL( RM(EA) ); WM( EA,A ); } /* SRL A=(XY+o) */
OP(xycb,40) { xycb_46(); } /* BIT 0,(XY+o) */
OP(xycb,41) { xycb_46(); } /* BIT 0,(XY+o) */
OP(xycb,42) { xycb_46(); } /* BIT 0,(XY+o) */
OP(xycb,43) { xycb_46(); } /* BIT 0,(XY+o) */
OP(xycb,44) { xycb_46(); } /* BIT 0,(XY+o) */
OP(xycb,45) { xycb_46(); } /* BIT 0,(XY+o) */
OP(xycb,46) { BIT_XY(0,RM(EA)); } /* BIT 0,(XY+o) */
OP(xycb,47) { xycb_46(); } /* BIT 0,(XY+o) */
OP(xycb,48) { xycb_4e(); } /* BIT 1,(XY+o) */
OP(xycb,49) { xycb_4e(); } /* BIT 1,(XY+o) */
OP(xycb,4a) { xycb_4e(); } /* BIT 1,(XY+o) */
OP(xycb,4b) { xycb_4e(); } /* BIT 1,(XY+o) */
OP(xycb,4c) { xycb_4e(); } /* BIT 1,(XY+o) */
OP(xycb,4d) { xycb_4e(); } /* BIT 1,(XY+o) */
OP(xycb,4e) { BIT_XY(1,RM(EA)); } /* BIT 1,(XY+o) */
OP(xycb,4f) { xycb_4e(); } /* BIT 1,(XY+o) */
OP(xycb,50) { xycb_56(); } /* BIT 2,(XY+o) */
OP(xycb,51) { xycb_56(); } /* BIT 2,(XY+o) */
OP(xycb,52) { xycb_56(); } /* BIT 2,(XY+o) */
OP(xycb,53) { xycb_56(); } /* BIT 2,(XY+o) */
OP(xycb,54) { xycb_56(); } /* BIT 2,(XY+o) */
OP(xycb,55) { xycb_56(); } /* BIT 2,(XY+o) */
OP(xycb,56) { BIT_XY(2,RM(EA)); } /* BIT 2,(XY+o) */
OP(xycb,57) { xycb_56(); } /* BIT 2,(XY+o) */
OP(xycb,58) { xycb_5e(); } /* BIT 3,(XY+o) */
OP(xycb,59) { xycb_5e(); } /* BIT 3,(XY+o) */
OP(xycb,5a) { xycb_5e(); } /* BIT 3,(XY+o) */
OP(xycb,5b) { xycb_5e(); } /* BIT 3,(XY+o) */
OP(xycb,5c) { xycb_5e(); } /* BIT 3,(XY+o) */
OP(xycb,5d) { xycb_5e(); } /* BIT 3,(XY+o) */
OP(xycb,5e) { BIT_XY(3,RM(EA)); } /* BIT 3,(XY+o) */
OP(xycb,5f) { xycb_5e(); } /* BIT 3,(XY+o) */
OP(xycb,60) { xycb_66(); } /* BIT 4,(XY+o) */
OP(xycb,61) { xycb_66(); } /* BIT 4,(XY+o) */
OP(xycb,62) { xycb_66(); } /* BIT 4,(XY+o) */
OP(xycb,63) { xycb_66(); } /* BIT 4,(XY+o) */
OP(xycb,64) { xycb_66(); } /* BIT 4,(XY+o) */
OP(xycb,65) { xycb_66(); } /* BIT 4,(XY+o) */
OP(xycb,66) { BIT_XY(4,RM(EA)); } /* BIT 4,(XY+o) */
OP(xycb,67) { xycb_66(); } /* BIT 4,(XY+o) */
OP(xycb,68) { xycb_6e(); } /* BIT 5,(XY+o) */
OP(xycb,69) { xycb_6e(); } /* BIT 5,(XY+o) */
OP(xycb,6a) { xycb_6e(); } /* BIT 5,(XY+o) */
OP(xycb,6b) { xycb_6e(); } /* BIT 5,(XY+o) */
OP(xycb,6c) { xycb_6e(); } /* BIT 5,(XY+o) */
OP(xycb,6d) { xycb_6e(); } /* BIT 5,(XY+o) */
OP(xycb,6e) { BIT_XY(5,RM(EA)); } /* BIT 5,(XY+o) */
OP(xycb,6f) { xycb_6e(); } /* BIT 5,(XY+o) */
OP(xycb,70) { xycb_66(); } /* BIT 6,(XY+o) */
OP(xycb,71) { xycb_66(); } /* BIT 6,(XY+o) */
OP(xycb,72) { xycb_66(); } /* BIT 6,(XY+o) */
OP(xycb,73) { xycb_66(); } /* BIT 6,(XY+o) */
OP(xycb,74) { xycb_66(); } /* BIT 6,(XY+o) */
OP(xycb,75) { xycb_66(); } /* BIT 6,(XY+o) */
OP(xycb,76) { BIT_XY(6,RM(EA)); } /* BIT 6,(XY+o) */
OP(xycb,77) { xycb_66(); } /* BIT 6,(XY+o) */
OP(xycb,78) { xycb_7e(); } /* BIT 7,(XY+o) */
OP(xycb,79) { xycb_7e(); } /* BIT 7,(XY+o) */
OP(xycb,7a) { xycb_7e(); } /* BIT 7,(XY+o) */
OP(xycb,7b) { xycb_7e(); } /* BIT 7,(XY+o) */
OP(xycb,7c) { xycb_7e(); } /* BIT 7,(XY+o) */
OP(xycb,7d) { xycb_7e(); } /* BIT 7,(XY+o) */
OP(xycb,7e) { BIT_XY(7,RM(EA)); } /* BIT 7,(XY+o) */
OP(xycb,7f) { xycb_7e(); } /* BIT 7,(XY+o) */
OP(xycb,80) { B = RES(0, RM(EA) ); WM( EA,B ); } /* RES 0,B=(XY+o) */
OP(xycb,81) { C = RES(0, RM(EA) ); WM( EA,C ); } /* RES 0,C=(XY+o) */
OP(xycb,82) { D = RES(0, RM(EA) ); WM( EA,D ); } /* RES 0,D=(XY+o) */
OP(xycb,83) { E = RES(0, RM(EA) ); WM( EA,E ); } /* RES 0,E=(XY+o) */
OP(xycb,84) { H = RES(0, RM(EA) ); WM( EA,H ); } /* RES 0,H=(XY+o) */
OP(xycb,85) { L = RES(0, RM(EA) ); WM( EA,L ); } /* RES 0,L=(XY+o) */
OP(xycb,86) { WM( EA, RES(0,RM(EA)) ); } /* RES 0,(XY+o) */
OP(xycb,87) { A = RES(0, RM(EA) ); WM( EA,A ); } /* RES 0,A=(XY+o) */
OP(xycb,88) { B = RES(1, RM(EA) ); WM( EA,B ); } /* RES 1,B=(XY+o) */
OP(xycb,89) { C = RES(1, RM(EA) ); WM( EA,C ); } /* RES 1,C=(XY+o) */
OP(xycb,8a) { D = RES(1, RM(EA) ); WM( EA,D ); } /* RES 1,D=(XY+o) */
OP(xycb,8b) { E = RES(1, RM(EA) ); WM( EA,E ); } /* RES 1,E=(XY+o) */
OP(xycb,8c) { H = RES(1, RM(EA) ); WM( EA,H ); } /* RES 1,H=(XY+o) */
OP(xycb,8d) { L = RES(1, RM(EA) ); WM( EA,L ); } /* RES 1,L=(XY+o) */
OP(xycb,8e) { WM( EA, RES(1,RM(EA)) ); } /* RES 1,(XY+o) */
OP(xycb,8f) { A = RES(1, RM(EA) ); WM( EA,A ); } /* RES 1,A=(XY+o) */
OP(xycb,90) { B = RES(2, RM(EA) ); WM( EA,B ); } /* RES 2,B=(XY+o) */
OP(xycb,91) { C = RES(2, RM(EA) ); WM( EA,C ); } /* RES 2,C=(XY+o) */
OP(xycb,92) { D = RES(2, RM(EA) ); WM( EA,D ); } /* RES 2,D=(XY+o) */
OP(xycb,93) { E = RES(2, RM(EA) ); WM( EA,E ); } /* RES 2,E=(XY+o) */
OP(xycb,94) { H = RES(2, RM(EA) ); WM( EA,H ); } /* RES 2,H=(XY+o) */
OP(xycb,95) { L = RES(2, RM(EA) ); WM( EA,L ); } /* RES 2,L=(XY+o) */
OP(xycb,96) { WM( EA, RES(2,RM(EA)) ); } /* RES 2,(XY+o) */
OP(xycb,97) { A = RES(2, RM(EA) ); WM( EA,A ); } /* RES 2,A=(XY+o) */
OP(xycb,98) { B = RES(3, RM(EA) ); WM( EA,B ); } /* RES 3,B=(XY+o) */
OP(xycb,99) { C = RES(3, RM(EA) ); WM( EA,C ); } /* RES 3,C=(XY+o) */
OP(xycb,9a) { D = RES(3, RM(EA) ); WM( EA,D ); } /* RES 3,D=(XY+o) */
OP(xycb,9b) { E = RES(3, RM(EA) ); WM( EA,E ); } /* RES 3,E=(XY+o) */
OP(xycb,9c) { H = RES(3, RM(EA) ); WM( EA,H ); } /* RES 3,H=(XY+o) */
OP(xycb,9d) { L = RES(3, RM(EA) ); WM( EA,L ); } /* RES 3,L=(XY+o) */
OP(xycb,9e) { WM( EA, RES(3,RM(EA)) ); } /* RES 3,(XY+o) */
OP(xycb,9f) { A = RES(3, RM(EA) ); WM( EA,A ); } /* RES 3,A=(XY+o) */
OP(xycb,a0) { B = RES(4, RM(EA) ); WM( EA,B ); } /* RES 4,B=(XY+o) */
OP(xycb,a1) { C = RES(4, RM(EA) ); WM( EA,C ); } /* RES 4,C=(XY+o) */
OP(xycb,a2) { D = RES(4, RM(EA) ); WM( EA,D ); } /* RES 4,D=(XY+o) */
OP(xycb,a3) { E = RES(4, RM(EA) ); WM( EA,E ); } /* RES 4,E=(XY+o) */
OP(xycb,a4) { H = RES(4, RM(EA) ); WM( EA,H ); } /* RES 4,H=(XY+o) */
OP(xycb,a5) { L = RES(4, RM(EA) ); WM( EA,L ); } /* RES 4,L=(XY+o) */
OP(xycb,a6) { WM( EA, RES(4,RM(EA)) ); } /* RES 4,(XY+o) */
OP(xycb,a7) { A = RES(4, RM(EA) ); WM( EA,A ); } /* RES 4,A=(XY+o) */
OP(xycb,a8) { B = RES(5, RM(EA) ); WM( EA,B ); } /* RES 5,B=(XY+o) */
OP(xycb,a9) { C = RES(5, RM(EA) ); WM( EA,C ); } /* RES 5,C=(XY+o) */
OP(xycb,aa) { D = RES(5, RM(EA) ); WM( EA,D ); } /* RES 5,D=(XY+o) */
OP(xycb,ab) { E = RES(5, RM(EA) ); WM( EA,E ); } /* RES 5,E=(XY+o) */
OP(xycb,ac) { H = RES(5, RM(EA) ); WM( EA,H ); } /* RES 5,H=(XY+o) */
OP(xycb,ad) { L = RES(5, RM(EA) ); WM( EA,L ); } /* RES 5,L=(XY+o) */
OP(xycb,ae) { WM( EA, RES(5,RM(EA)) ); } /* RES 5,(XY+o) */
OP(xycb,af) { A = RES(5, RM(EA) ); WM( EA,A ); } /* RES 5,A=(XY+o) */
OP(xycb,b0) { B = RES(6, RM(EA) ); WM( EA,B ); } /* RES 6,B=(XY+o) */
OP(xycb,b1) { C = RES(6, RM(EA) ); WM( EA,C ); } /* RES 6,C=(XY+o) */
OP(xycb,b2) { D = RES(6, RM(EA) ); WM( EA,D ); } /* RES 6,D=(XY+o) */
OP(xycb,b3) { E = RES(6, RM(EA) ); WM( EA,E ); } /* RES 6,E=(XY+o) */
OP(xycb,b4) { H = RES(6, RM(EA) ); WM( EA,H ); } /* RES 6,H=(XY+o) */
OP(xycb,b5) { L = RES(6, RM(EA) ); WM( EA,L ); } /* RES 6,L=(XY+o) */
OP(xycb,b6) { WM( EA, RES(6,RM(EA)) ); } /* RES 6,(XY+o) */
OP(xycb,b7) { A = RES(6, RM(EA) ); WM( EA,A ); } /* RES 6,A=(XY+o) */
OP(xycb,b8) { B = RES(7, RM(EA) ); WM( EA,B ); } /* RES 7,B=(XY+o) */
OP(xycb,b9) { C = RES(7, RM(EA) ); WM( EA,C ); } /* RES 7,C=(XY+o) */
OP(xycb,ba) { D = RES(7, RM(EA) ); WM( EA,D ); } /* RES 7,D=(XY+o) */
OP(xycb,bb) { E = RES(7, RM(EA) ); WM( EA,E ); } /* RES 7,E=(XY+o) */
OP(xycb,bc) { H = RES(7, RM(EA) ); WM( EA,H ); } /* RES 7,H=(XY+o) */
OP(xycb,bd) { L = RES(7, RM(EA) ); WM( EA,L ); } /* RES 7,L=(XY+o) */
OP(xycb,be) { WM( EA, RES(7,RM(EA)) ); } /* RES 7,(XY+o) */
OP(xycb,bf) { A = RES(7, RM(EA) ); WM( EA,A ); } /* RES 7,A=(XY+o) */
OP(xycb,c0) { B = SET(0, RM(EA) ); WM( EA,B ); } /* SET 0,B=(XY+o) */
OP(xycb,c1) { C = SET(0, RM(EA) ); WM( EA,C ); } /* SET 0,C=(XY+o) */
OP(xycb,c2) { D = SET(0, RM(EA) ); WM( EA,D ); } /* SET 0,D=(XY+o) */
OP(xycb,c3) { E = SET(0, RM(EA) ); WM( EA,E ); } /* SET 0,E=(XY+o) */
OP(xycb,c4) { H = SET(0, RM(EA) ); WM( EA,H ); } /* SET 0,H=(XY+o) */
OP(xycb,c5) { L = SET(0, RM(EA) ); WM( EA,L ); } /* SET 0,L=(XY+o) */
OP(xycb,c6) { WM( EA, SET(0,RM(EA)) ); } /* SET 0,(XY+o) */
OP(xycb,c7) { A = SET(0, RM(EA) ); WM( EA,A ); } /* SET 0,A=(XY+o) */
OP(xycb,c8) { B = SET(1, RM(EA) ); WM( EA,B ); } /* SET 1,B=(XY+o) */
OP(xycb,c9) { C = SET(1, RM(EA) ); WM( EA,C ); } /* SET 1,C=(XY+o) */
OP(xycb,ca) { D = SET(1, RM(EA) ); WM( EA,D ); } /* SET 1,D=(XY+o) */
OP(xycb,cb) { E = SET(1, RM(EA) ); WM( EA,E ); } /* SET 1,E=(XY+o) */
OP(xycb,cc) { H = SET(1, RM(EA) ); WM( EA,H ); } /* SET 1,H=(XY+o) */
OP(xycb,cd) { L = SET(1, RM(EA) ); WM( EA,L ); } /* SET 1,L=(XY+o) */
OP(xycb,ce) { WM( EA, SET(1,RM(EA)) ); } /* SET 1,(XY+o) */
OP(xycb,cf) { A = SET(1, RM(EA) ); WM( EA,A ); } /* SET 1,A=(XY+o) */
OP(xycb,d0) { B = SET(2, RM(EA) ); WM( EA,B ); } /* SET 2,B=(XY+o) */
OP(xycb,d1) { C = SET(2, RM(EA) ); WM( EA,C ); } /* SET 2,C=(XY+o) */
OP(xycb,d2) { D = SET(2, RM(EA) ); WM( EA,D ); } /* SET 2,D=(XY+o) */
OP(xycb,d3) { E = SET(2, RM(EA) ); WM( EA,E ); } /* SET 2,E=(XY+o) */
OP(xycb,d4) { H = SET(2, RM(EA) ); WM( EA,H ); } /* SET 2,H=(XY+o) */
OP(xycb,d5) { L = SET(2, RM(EA) ); WM( EA,L ); } /* SET 2,L=(XY+o) */
OP(xycb,d6) { WM( EA, SET(2,RM(EA)) ); } /* SET 2,(XY+o) */
OP(xycb,d7) { A = SET(2, RM(EA) ); WM( EA,A ); } /* SET 2,A=(XY+o) */
OP(xycb,d8) { B = SET(3, RM(EA) ); WM( EA,B ); } /* SET 3,B=(XY+o) */
OP(xycb,d9) { C = SET(3, RM(EA) ); WM( EA,C ); } /* SET 3,C=(XY+o) */
OP(xycb,da) { D = SET(3, RM(EA) ); WM( EA,D ); } /* SET 3,D=(XY+o) */
OP(xycb,db) { E = SET(3, RM(EA) ); WM( EA,E ); } /* SET 3,E=(XY+o) */
OP(xycb,dc) { H = SET(3, RM(EA) ); WM( EA,H ); } /* SET 3,H=(XY+o) */
OP(xycb,dd) { L = SET(3, RM(EA) ); WM( EA,L ); } /* SET 3,L=(XY+o) */
OP(xycb,de) { WM( EA, SET(3,RM(EA)) ); } /* SET 3,(XY+o) */
OP(xycb,df) { A = SET(3, RM(EA) ); WM( EA,A ); } /* SET 3,A=(XY+o) */
OP(xycb,e0) { B = SET(4, RM(EA) ); WM( EA,B ); } /* SET 4,B=(XY+o) */
OP(xycb,e1) { C = SET(4, RM(EA) ); WM( EA,C ); } /* SET 4,C=(XY+o) */
OP(xycb,e2) { D = SET(4, RM(EA) ); WM( EA,D ); } /* SET 4,D=(XY+o) */
OP(xycb,e3) { E = SET(4, RM(EA) ); WM( EA,E ); } /* SET 4,E=(XY+o) */
OP(xycb,e4) { H = SET(4, RM(EA) ); WM( EA,H ); } /* SET 4,H=(XY+o) */
OP(xycb,e5) { L = SET(4, RM(EA) ); WM( EA,L ); } /* SET 4,L=(XY+o) */
OP(xycb,e6) { WM( EA, SET(4,RM(EA)) ); } /* SET 4,(XY+o) */
OP(xycb,e7) { A = SET(4, RM(EA) ); WM( EA,A ); } /* SET 4,A=(XY+o) */
OP(xycb,e8) { B = SET(5, RM(EA) ); WM( EA,B ); } /* SET 5,B=(XY+o) */
OP(xycb,e9) { C = SET(5, RM(EA) ); WM( EA,C ); } /* SET 5,C=(XY+o) */
OP(xycb,ea) { D = SET(5, RM(EA) ); WM( EA,D ); } /* SET 5,D=(XY+o) */
OP(xycb,eb) { E = SET(5, RM(EA) ); WM( EA,E ); } /* SET 5,E=(XY+o) */
OP(xycb,ec) { H = SET(5, RM(EA) ); WM( EA,H ); } /* SET 5,H=(XY+o) */
OP(xycb,ed) { L = SET(5, RM(EA) ); WM( EA,L ); } /* SET 5,L=(XY+o) */
OP(xycb,ee) { WM( EA, SET(5,RM(EA)) ); } /* SET 5,(XY+o) */
OP(xycb,ef) { A = SET(5, RM(EA) ); WM( EA,A ); } /* SET 5,A=(XY+o) */
OP(xycb,f0) { B = SET(6, RM(EA) ); WM( EA,B ); } /* SET 6,B=(XY+o) */
OP(xycb,f1) { C = SET(6, RM(EA) ); WM( EA,C ); } /* SET 6,C=(XY+o) */
OP(xycb,f2) { D = SET(6, RM(EA) ); WM( EA,D ); } /* SET 6,D=(XY+o) */
OP(xycb,f3) { E = SET(6, RM(EA) ); WM( EA,E ); } /* SET 6,E=(XY+o) */
OP(xycb,f4) { H = SET(6, RM(EA) ); WM( EA,H ); } /* SET 6,H=(XY+o) */
OP(xycb,f5) { L = SET(6, RM(EA) ); WM( EA,L ); } /* SET 6,L=(XY+o) */
OP(xycb,f6) { WM( EA, SET(6,RM(EA)) ); } /* SET 6,(XY+o) */
OP(xycb,f7) { A = SET(6, RM(EA) ); WM( EA,A ); } /* SET 6,A=(XY+o) */
OP(xycb,f8) { B = SET(7, RM(EA) ); WM( EA,B ); } /* SET 7,B=(XY+o) */
OP(xycb,f9) { C = SET(7, RM(EA) ); WM( EA,C ); } /* SET 7,C=(XY+o) */
OP(xycb,fa) { D = SET(7, RM(EA) ); WM( EA,D ); } /* SET 7,D=(XY+o) */
OP(xycb,fb) { E = SET(7, RM(EA) ); WM( EA,E ); } /* SET 7,E=(XY+o) */
OP(xycb,fc) { H = SET(7, RM(EA) ); WM( EA,H ); } /* SET 7,H=(XY+o) */
OP(xycb,fd) { L = SET(7, RM(EA) ); WM( EA,L ); } /* SET 7,L=(XY+o) */
OP(xycb,fe) { WM( EA, SET(7,RM(EA)) ); } /* SET 7,(XY+o) */
OP(xycb,ff) { A = SET(7, RM(EA) ); WM( EA,A ); } /* SET 7,A=(XY+o) */
OP(illegal,1) {
#if VERBOSE
logerror("Z80 #%d ill. opcode $%02x $%02x\n",
cpu_getactivecpu(), cpu_readop((PCD-1)&0xffff), cpu_readop(PCD));
#endif
}
/**********************************************************
* IX register related opcodes (DD prefix)
**********************************************************/
OP(dd,00) { illegal_1(); op_00(); } /* DB DD */
OP(dd,01) { illegal_1(); op_01(); } /* DB DD */
OP(dd,02) { illegal_1(); op_02(); } /* DB DD */
OP(dd,03) { illegal_1(); op_03(); } /* DB DD */
OP(dd,04) { illegal_1(); op_04(); } /* DB DD */
OP(dd,05) { illegal_1(); op_05(); } /* DB DD */
OP(dd,06) { illegal_1(); op_06(); } /* DB DD */
OP(dd,07) { illegal_1(); op_07(); } /* DB DD */
OP(dd,08) { illegal_1(); op_08(); } /* DB DD */
OP(dd,09) { R++; ADD16(ix,bc); } /* ADD IX,BC */
OP(dd,0a) { illegal_1(); op_0a(); } /* DB DD */
OP(dd,0b) { illegal_1(); op_0b(); } /* DB DD */
OP(dd,0c) { illegal_1(); op_0c(); } /* DB DD */
OP(dd,0d) { illegal_1(); op_0d(); } /* DB DD */
OP(dd,0e) { illegal_1(); op_0e(); } /* DB DD */
OP(dd,0f) { illegal_1(); op_0f(); } /* DB DD */
OP(dd,10) { illegal_1(); op_10(); } /* DB DD */
OP(dd,11) { illegal_1(); op_11(); } /* DB DD */
OP(dd,12) { illegal_1(); op_12(); } /* DB DD */
OP(dd,13) { illegal_1(); op_13(); } /* DB DD */
OP(dd,14) { illegal_1(); op_14(); } /* DB DD */
OP(dd,15) { illegal_1(); op_15(); } /* DB DD */
OP(dd,16) { illegal_1(); op_16(); } /* DB DD */
OP(dd,17) { illegal_1(); op_17(); } /* DB DD */
OP(dd,18) { illegal_1(); op_18(); } /* DB DD */
OP(dd,19) { R++; ADD16(ix,de); } /* ADD IX,DE */
OP(dd,1a) { illegal_1(); op_1a(); } /* DB DD */
OP(dd,1b) { illegal_1(); op_1b(); } /* DB DD */
OP(dd,1c) { illegal_1(); op_1c(); } /* DB DD */
OP(dd,1d) { illegal_1(); op_1d(); } /* DB DD */
OP(dd,1e) { illegal_1(); op_1e(); } /* DB DD */
OP(dd,1f) { illegal_1(); op_1f(); } /* DB DD */
OP(dd,20) { illegal_1(); op_20(); } /* DB DD */
OP(dd,21) { R++; IX = ARG16(); } /* LD IX,w */
OP(dd,22) { R++; EA = ARG16(); WM16( EA, &Z80.ix ); } /* LD (w),IX */
OP(dd,23) { R++; IX++; } /* INC IX */
OP(dd,24) { R++; HX = INC(HX); } /* INC HX */
OP(dd,25) { R++; HX = DEC(HX); } /* DEC HX */
OP(dd,26) { R++; HX = ARG(); } /* LD HX,n */
OP(dd,27) { illegal_1(); op_27(); } /* DB DD */
OP(dd,28) { illegal_1(); op_28(); } /* DB DD */
OP(dd,29) { R++; ADD16(ix,ix); } /* ADD IX,IX */
OP(dd,2a) { R++; EA = ARG16(); RM16( EA, &Z80.ix ); } /* LD IX,(w) */
OP(dd,2b) { R++; IX--; } /* DEC IX */
OP(dd,2c) { R++; LX = INC(LX); } /* INC LX */
OP(dd,2d) { R++; LX = DEC(LX); } /* DEC LX */
OP(dd,2e) { R++; LX = ARG(); } /* LD LX,n */
OP(dd,2f) { illegal_1(); op_2f(); } /* DB DD */
OP(dd,30) { illegal_1(); op_30(); } /* DB DD */
OP(dd,31) { illegal_1(); op_31(); } /* DB DD */
OP(dd,32) { illegal_1(); op_32(); } /* DB DD */
OP(dd,33) { illegal_1(); op_33(); } /* DB DD */
OP(dd,34) { R++; EAX; WM( EA, INC(RM(EA)) ); } /* INC (IX+o) */
OP(dd,35) { R++; EAX; WM( EA, DEC(RM(EA)) ); } /* DEC (IX+o) */
OP(dd,36) { R++; EAX; WM( EA, ARG() ); } /* LD (IX+o),n */
OP(dd,37) { illegal_1(); op_37(); } /* DB DD */
OP(dd,38) { illegal_1(); op_38(); } /* DB DD */
OP(dd,39) { R++; ADD16(ix,sp); } /* ADD IX,SP */
OP(dd,3a) { illegal_1(); op_3a(); } /* DB DD */
OP(dd,3b) { illegal_1(); op_3b(); } /* DB DD */
OP(dd,3c) { illegal_1(); op_3c(); } /* DB DD */
OP(dd,3d) { illegal_1(); op_3d(); } /* DB DD */
OP(dd,3e) { illegal_1(); op_3e(); } /* DB DD */
OP(dd,3f) { illegal_1(); op_3f(); } /* DB DD */
OP(dd,40) { illegal_1(); op_40(); } /* DB DD */
OP(dd,41) { illegal_1(); op_41(); } /* DB DD */
OP(dd,42) { illegal_1(); op_42(); } /* DB DD */
OP(dd,43) { illegal_1(); op_43(); } /* DB DD */
OP(dd,44) { R++; B = HX; } /* LD B,HX */
OP(dd,45) { R++; B = LX; } /* LD B,LX */
OP(dd,46) { R++; EAX; B = RM(EA); } /* LD B,(IX+o) */
OP(dd,47) { illegal_1(); op_47(); } /* DB DD */
OP(dd,48) { illegal_1(); op_48(); } /* DB DD */
OP(dd,49) { illegal_1(); op_49(); } /* DB DD */
OP(dd,4a) { illegal_1(); op_4a(); } /* DB DD */
OP(dd,4b) { illegal_1(); op_4b(); } /* DB DD */
OP(dd,4c) { R++; C = HX; } /* LD C,HX */
OP(dd,4d) { R++; C = LX; } /* LD C,LX */
OP(dd,4e) { R++; EAX; C = RM(EA); } /* LD C,(IX+o) */
OP(dd,4f) { illegal_1(); op_4f(); } /* DB DD */
OP(dd,50) { illegal_1(); op_50(); } /* DB DD */
OP(dd,51) { illegal_1(); op_51(); } /* DB DD */
OP(dd,52) { illegal_1(); op_52(); } /* DB DD */
OP(dd,53) { illegal_1(); op_53(); } /* DB DD */
OP(dd,54) { R++; D = HX; } /* LD D,HX */
OP(dd,55) { R++; D = LX; } /* LD D,LX */
OP(dd,56) { R++; EAX; D = RM(EA); } /* LD D,(IX+o) */
OP(dd,57) { illegal_1(); op_57(); } /* DB DD */
OP(dd,58) { illegal_1(); op_58(); } /* DB DD */
OP(dd,59) { illegal_1(); op_59(); } /* DB DD */
OP(dd,5a) { illegal_1(); op_5a(); } /* DB DD */
OP(dd,5b) { illegal_1(); op_5b(); } /* DB DD */
OP(dd,5c) { R++; E = HX; } /* LD E,HX */
OP(dd,5d) { R++; E = LX; } /* LD E,LX */
OP(dd,5e) { R++; EAX; E = RM(EA); } /* LD E,(IX+o) */
OP(dd,5f) { illegal_1(); op_5f(); } /* DB DD */
OP(dd,60) { R++; HX = B; } /* LD HX,B */
OP(dd,61) { R++; HX = C; } /* LD HX,C */
OP(dd,62) { R++; HX = D; } /* LD HX,D */
OP(dd,63) { R++; HX = E; } /* LD HX,E */
OP(dd,64) { } /* LD HX,HX */
OP(dd,65) { R++; HX = LX; } /* LD HX,LX */
OP(dd,66) { R++; EAX; H = RM(EA); } /* LD H,(IX+o) */
OP(dd,67) { R++; HX = A; } /* LD HX,A */
OP(dd,68) { R++; LX = B; } /* LD LX,B */
OP(dd,69) { R++; LX = C; } /* LD LX,C */
OP(dd,6a) { R++; LX = D; } /* LD LX,D */
OP(dd,6b) { R++; LX = E; } /* LD LX,E */
OP(dd,6c) { R++; LX = HX; } /* LD LX,HX */
OP(dd,6d) { } /* LD LX,LX */
OP(dd,6e) { R++; EAX; L = RM(EA); } /* LD L,(IX+o) */
OP(dd,6f) { R++; LX = A; } /* LD LX,A */
OP(dd,70) { R++; EAX; WM( EA, B ); } /* LD (IX+o),B */
OP(dd,71) { R++; EAX; WM( EA, C ); } /* LD (IX+o),C */
OP(dd,72) { R++; EAX; WM( EA, D ); } /* LD (IX+o),D */
OP(dd,73) { R++; EAX; WM( EA, E ); } /* LD (IX+o),E */
OP(dd,74) { R++; EAX; WM( EA, H ); } /* LD (IX+o),H */
OP(dd,75) { R++; EAX; WM( EA, L ); } /* LD (IX+o),L */
OP(dd,76) { illegal_1(); op_76(); } /* DB DD */
OP(dd,77) { R++; EAX; WM( EA, A ); } /* LD (IX+o),A */
OP(dd,78) { illegal_1(); op_78(); } /* DB DD */
OP(dd,79) { illegal_1(); op_79(); } /* DB DD */
OP(dd,7a) { illegal_1(); op_7a(); } /* DB DD */
OP(dd,7b) { illegal_1(); op_7b(); } /* DB DD */
OP(dd,7c) { R++; A = HX; } /* LD A,HX */
OP(dd,7d) { R++; A = LX; } /* LD A,LX */
OP(dd,7e) { R++; EAX; A = RM(EA); } /* LD A,(IX+o) */
OP(dd,7f) { illegal_1(); op_7f(); } /* DB DD */
OP(dd,80) { illegal_1(); op_80(); } /* DB DD */
OP(dd,81) { illegal_1(); op_81(); } /* DB DD */
OP(dd,82) { illegal_1(); op_82(); } /* DB DD */
OP(dd,83) { illegal_1(); op_83(); } /* DB DD */
OP(dd,84) { R++; ADD(HX); } /* ADD A,HX */
OP(dd,85) { R++; ADD(LX); } /* ADD A,LX */
OP(dd,86) { R++; EAX; ADD(RM(EA)); } /* ADD A,(IX+o) */
OP(dd,87) { illegal_1(); op_87(); } /* DB DD */
OP(dd,88) { illegal_1(); op_88(); } /* DB DD */
OP(dd,89) { illegal_1(); op_89(); } /* DB DD */
OP(dd,8a) { illegal_1(); op_8a(); } /* DB DD */
OP(dd,8b) { illegal_1(); op_8b(); } /* DB DD */
OP(dd,8c) { R++; ADC(HX); } /* ADC A,HX */
OP(dd,8d) { R++; ADC(LX); } /* ADC A,LX */
OP(dd,8e) { R++; EAX; ADC(RM(EA)); } /* ADC A,(IX+o) */
OP(dd,8f) { illegal_1(); op_8f(); } /* DB DD */
OP(dd,90) { illegal_1(); op_90(); } /* DB DD */
OP(dd,91) { illegal_1(); op_91(); } /* DB DD */
OP(dd,92) { illegal_1(); op_92(); } /* DB DD */
OP(dd,93) { illegal_1(); op_93(); } /* DB DD */
OP(dd,94) { R++; SUB(HX); } /* SUB HX */
OP(dd,95) { R++; SUB(LX); } /* SUB LX */
OP(dd,96) { R++; EAX; SUB(RM(EA)); } /* SUB (IX+o) */
OP(dd,97) { illegal_1(); op_97(); } /* DB DD */
OP(dd,98) { illegal_1(); op_98(); } /* DB DD */
OP(dd,99) { illegal_1(); op_99(); } /* DB DD */
OP(dd,9a) { illegal_1(); op_9a(); } /* DB DD */
OP(dd,9b) { illegal_1(); op_9b(); } /* DB DD */
OP(dd,9c) { R++; SBC(HX); } /* SBC A,HX */
OP(dd,9d) { R++; SBC(LX); } /* SBC A,LX */
OP(dd,9e) { R++; EAX; SBC(RM(EA)); } /* SBC A,(IX+o) */
OP(dd,9f) { illegal_1(); op_9f(); } /* DB DD */
OP(dd,a0) { illegal_1(); op_a0(); } /* DB DD */
OP(dd,a1) { illegal_1(); op_a1(); } /* DB DD */
OP(dd,a2) { illegal_1(); op_a2(); } /* DB DD */
OP(dd,a3) { illegal_1(); op_a3(); } /* DB DD */
OP(dd,a4) { R++; AND(HX); } /* AND HX */
OP(dd,a5) { R++; AND(LX); } /* AND LX */
OP(dd,a6) { R++; EAX; AND(RM(EA)); } /* AND (IX+o) */
OP(dd,a7) { illegal_1(); op_a7(); } /* DB DD */
OP(dd,a8) { illegal_1(); op_a8(); } /* DB DD */
OP(dd,a9) { illegal_1(); op_a9(); } /* DB DD */
OP(dd,aa) { illegal_1(); op_aa(); } /* DB DD */
OP(dd,ab) { illegal_1(); op_ab(); } /* DB DD */
OP(dd,ac) { R++; XOR(HX); } /* XOR HX */
OP(dd,ad) { R++; XOR(LX); } /* XOR LX */
OP(dd,ae) { R++; EAX; XOR(RM(EA)); } /* XOR (IX+o) */
OP(dd,af) { illegal_1(); op_af(); } /* DB DD */
OP(dd,b0) { illegal_1(); op_b0(); } /* DB DD */
OP(dd,b1) { illegal_1(); op_b1(); } /* DB DD */
OP(dd,b2) { illegal_1(); op_b2(); } /* DB DD */
OP(dd,b3) { illegal_1(); op_b3(); } /* DB DD */
OP(dd,b4) { R++; OR(HX); } /* OR HX */
OP(dd,b5) { R++; OR(LX); } /* OR LX */
OP(dd,b6) { R++; EAX; OR(RM(EA)); } /* OR (IX+o) */
OP(dd,b7) { illegal_1(); op_b7(); } /* DB DD */
OP(dd,b8) { illegal_1(); op_b8(); } /* DB DD */
OP(dd,b9) { illegal_1(); op_b9(); } /* DB DD */
OP(dd,ba) { illegal_1(); op_ba(); } /* DB DD */
OP(dd,bb) { illegal_1(); op_bb(); } /* DB DD */
OP(dd,bc) { R++; CP(HX); } /* CP HX */
OP(dd,bd) { R++; CP(LX); } /* CP LX */
OP(dd,be) { R++; EAX; CP(RM(EA)); } /* CP (IX+o) */
OP(dd,bf) { illegal_1(); op_bf(); } /* DB DD */
OP(dd,c0) { illegal_1(); op_c0(); } /* DB DD */
OP(dd,c1) { illegal_1(); op_c1(); } /* DB DD */
OP(dd,c2) { illegal_1(); op_c2(); } /* DB DD */
OP(dd,c3) { illegal_1(); op_c3(); } /* DB DD */
OP(dd,c4) { illegal_1(); op_c4(); } /* DB DD */
OP(dd,c5) { illegal_1(); op_c5(); } /* DB DD */
OP(dd,c6) { illegal_1(); op_c6(); } /* DB DD */
OP(dd,c7) { illegal_1(); op_c7(); } /* DB DD */
OP(dd,c8) { illegal_1(); op_c8(); } /* DB DD */
OP(dd,c9) { illegal_1(); op_c9(); } /* DB DD */
OP(dd,ca) { illegal_1(); op_ca(); } /* DB DD */
OP(dd,cb) { R++; EAX; EXEC(xycb,ARG()); } /* ** DD CB xx */
OP(dd,cc) { illegal_1(); op_cc(); } /* DB DD */
OP(dd,cd) { illegal_1(); op_cd(); } /* DB DD */
OP(dd,ce) { illegal_1(); op_ce(); } /* DB DD */
OP(dd,cf) { illegal_1(); op_cf(); } /* DB DD */
OP(dd,d0) { illegal_1(); op_d0(); } /* DB DD */
OP(dd,d1) { illegal_1(); op_d1(); } /* DB DD */
OP(dd,d2) { illegal_1(); op_d2(); } /* DB DD */
OP(dd,d3) { illegal_1(); op_d3(); } /* DB DD */
OP(dd,d4) { illegal_1(); op_d4(); } /* DB DD */
OP(dd,d5) { illegal_1(); op_d5(); } /* DB DD */
OP(dd,d6) { illegal_1(); op_d6(); } /* DB DD */
OP(dd,d7) { illegal_1(); op_d7(); } /* DB DD */
OP(dd,d8) { illegal_1(); op_d8(); } /* DB DD */
OP(dd,d9) { illegal_1(); op_d9(); } /* DB DD */
OP(dd,da) { illegal_1(); op_da(); } /* DB DD */
OP(dd,db) { illegal_1(); op_db(); } /* DB DD */
OP(dd,dc) { illegal_1(); op_dc(); } /* DB DD */
OP(dd,dd) { illegal_1(); op_dd(); } /* DB DD */
OP(dd,de) { illegal_1(); op_de(); } /* DB DD */
OP(dd,df) { illegal_1(); op_df(); } /* DB DD */
OP(dd,e0) { illegal_1(); op_e0(); } /* DB DD */
OP(dd,e1) { R++; POP( ix ); } /* POP IX */
OP(dd,e2) { illegal_1(); op_e2(); } /* DB DD */
OP(dd,e3) { R++; EXSP( ix ); } /* EX (SP),IX */
OP(dd,e4) { illegal_1(); op_e4(); } /* DB DD */
OP(dd,e5) { R++; PUSH( ix ); } /* PUSH IX */
OP(dd,e6) { illegal_1(); op_e6(); } /* DB DD */
OP(dd,e7) { illegal_1(); op_e7(); } /* DB DD */
OP(dd,e8) { illegal_1(); op_e8(); } /* DB DD */
OP(dd,e9) { R++; PC = IX; change_pc(PCD); } /* JP (IX) */
OP(dd,ea) { illegal_1(); op_ea(); } /* DB DD */
OP(dd,eb) { illegal_1(); op_eb(); } /* DB DD */
OP(dd,ec) { illegal_1(); op_ec(); } /* DB DD */
OP(dd,ed) { illegal_1(); op_ed(); } /* DB DD */
OP(dd,ee) { illegal_1(); op_ee(); } /* DB DD */
OP(dd,ef) { illegal_1(); op_ef(); } /* DB DD */
OP(dd,f0) { illegal_1(); op_f0(); } /* DB DD */
OP(dd,f1) { illegal_1(); op_f1(); } /* DB DD */
OP(dd,f2) { illegal_1(); op_f2(); } /* DB DD */
OP(dd,f3) { illegal_1(); op_f3(); } /* DB DD */
OP(dd,f4) { illegal_1(); op_f4(); } /* DB DD */
OP(dd,f5) { illegal_1(); op_f5(); } /* DB DD */
OP(dd,f6) { illegal_1(); op_f6(); } /* DB DD */
OP(dd,f7) { illegal_1(); op_f7(); } /* DB DD */
OP(dd,f8) { illegal_1(); op_f8(); } /* DB DD */
OP(dd,f9) { R++; SP = IX; } /* LD SP,IX */
OP(dd,fa) { illegal_1(); op_fa(); } /* DB DD */
OP(dd,fb) { illegal_1(); op_fb(); } /* DB DD */
OP(dd,fc) { illegal_1(); op_fc(); } /* DB DD */
OP(dd,fd) { illegal_1(); op_fd(); } /* DB DD */
OP(dd,fe) { illegal_1(); op_fe(); } /* DB DD */
OP(dd,ff) { illegal_1(); op_ff(); } /* DB DD */
/**********************************************************
* IY register related opcodes (FD prefix)
**********************************************************/
OP(fd,00) { illegal_1(); op_00(); } /* DB FD */
OP(fd,01) { illegal_1(); op_01(); } /* DB FD */
OP(fd,02) { illegal_1(); op_02(); } /* DB FD */
OP(fd,03) { illegal_1(); op_03(); } /* DB FD */
OP(fd,04) { illegal_1(); op_04(); } /* DB FD */
OP(fd,05) { illegal_1(); op_05(); } /* DB FD */
OP(fd,06) { illegal_1(); op_06(); } /* DB FD */
OP(fd,07) { illegal_1(); op_07(); } /* DB FD */
OP(fd,08) { illegal_1(); op_08(); } /* DB FD */
OP(fd,09) { R++; ADD16(iy,bc); } /* ADD IY,BC */
OP(fd,0a) { illegal_1(); op_0a(); } /* DB FD */
OP(fd,0b) { illegal_1(); op_0b(); } /* DB FD */
OP(fd,0c) { illegal_1(); op_0c(); } /* DB FD */
OP(fd,0d) { illegal_1(); op_0d(); } /* DB FD */
OP(fd,0e) { illegal_1(); op_0e(); } /* DB FD */
OP(fd,0f) { illegal_1(); op_0f(); } /* DB FD */
OP(fd,10) { illegal_1(); op_10(); } /* DB FD */
OP(fd,11) { illegal_1(); op_11(); } /* DB FD */
OP(fd,12) { illegal_1(); op_12(); } /* DB FD */
OP(fd,13) { illegal_1(); op_13(); } /* DB FD */
OP(fd,14) { illegal_1(); op_14(); } /* DB FD */
OP(fd,15) { illegal_1(); op_15(); } /* DB FD */
OP(fd,16) { illegal_1(); op_16(); } /* DB FD */
OP(fd,17) { illegal_1(); op_17(); } /* DB FD */
OP(fd,18) { illegal_1(); op_18(); } /* DB FD */
OP(fd,19) { R++; ADD16(iy,de); } /* ADD IY,DE */
OP(fd,1a) { illegal_1(); op_1a(); } /* DB FD */
OP(fd,1b) { illegal_1(); op_1b(); } /* DB FD */
OP(fd,1c) { illegal_1(); op_1c(); } /* DB FD */
OP(fd,1d) { illegal_1(); op_1d(); } /* DB FD */
OP(fd,1e) { illegal_1(); op_1e(); } /* DB FD */
OP(fd,1f) { illegal_1(); op_1f(); } /* DB FD */
OP(fd,20) { illegal_1(); op_20(); } /* DB FD */
OP(fd,21) { R++; IY = ARG16(); } /* LD IY,w */
OP(fd,22) { R++; EA = ARG16(); WM16( EA, &Z80.iy ); } /* LD (w),IY */
OP(fd,23) { R++; IY++; } /* INC IY */
OP(fd,24) { R++; HY = INC(HY); } /* INC HY */
OP(fd,25) { R++; HY = DEC(HY); } /* DEC HY */
OP(fd,26) { R++; HY = ARG(); } /* LD HY,n */
OP(fd,27) { illegal_1(); op_27(); } /* DB FD */
OP(fd,28) { illegal_1(); op_28(); } /* DB FD */
OP(fd,29) { R++; ADD16(iy,iy); } /* ADD IY,IY */
OP(fd,2a) { R++; EA = ARG16(); RM16( EA, &Z80.iy ); } /* LD IY,(w) */
OP(fd,2b) { R++; IY--; } /* DEC IY */
OP(fd,2c) { R++; LY = INC(LY); } /* INC LY */
OP(fd,2d) { R++; LY = DEC(LY); } /* DEC LY */
OP(fd,2e) { R++; LY = ARG(); } /* LD LY,n */
OP(fd,2f) { illegal_1(); op_2f(); } /* DB FD */
OP(fd,30) { illegal_1(); op_30(); } /* DB FD */
OP(fd,31) { illegal_1(); op_31(); } /* DB FD */
OP(fd,32) { illegal_1(); op_32(); } /* DB FD */
OP(fd,33) { illegal_1(); op_33(); } /* DB FD */
OP(fd,34) { R++; EAY; WM( EA, INC(RM(EA)) ); } /* INC (IY+o) */
OP(fd,35) { R++; EAY; WM( EA, DEC(RM(EA)) ); } /* DEC (IY+o) */
OP(fd,36) { R++; EAY; WM( EA, ARG() ); } /* LD (IY+o),n */
OP(fd,37) { illegal_1(); op_37(); } /* DB FD */
OP(fd,38) { illegal_1(); op_38(); } /* DB FD */
OP(fd,39) { R++; ADD16(iy,sp); } /* ADD IY,SP */
OP(fd,3a) { illegal_1(); op_3a(); } /* DB FD */
OP(fd,3b) { illegal_1(); op_3b(); } /* DB FD */
OP(fd,3c) { illegal_1(); op_3c(); } /* DB FD */
OP(fd,3d) { illegal_1(); op_3d(); } /* DB FD */
OP(fd,3e) { illegal_1(); op_3e(); } /* DB FD */
OP(fd,3f) { illegal_1(); op_3f(); } /* DB FD */
OP(fd,40) { illegal_1(); op_40(); } /* DB FD */
OP(fd,41) { illegal_1(); op_41(); } /* DB FD */
OP(fd,42) { illegal_1(); op_42(); } /* DB FD */
OP(fd,43) { illegal_1(); op_43(); } /* DB FD */
OP(fd,44) { R++; B = HY; } /* LD B,HY */
OP(fd,45) { R++; B = LY; } /* LD B,LY */
OP(fd,46) { R++; EAY; B = RM(EA); } /* LD B,(IY+o) */
OP(fd,47) { illegal_1(); op_47(); } /* DB FD */
OP(fd,48) { illegal_1(); op_48(); } /* DB FD */
OP(fd,49) { illegal_1(); op_49(); } /* DB FD */
OP(fd,4a) { illegal_1(); op_4a(); } /* DB FD */
OP(fd,4b) { illegal_1(); op_4b(); } /* DB FD */
OP(fd,4c) { R++; C = HY; } /* LD C,HY */
OP(fd,4d) { R++; C = LY; } /* LD C,LY */
OP(fd,4e) { R++; EAY; C = RM(EA); } /* LD C,(IY+o) */
OP(fd,4f) { illegal_1(); op_4f(); } /* DB FD */
OP(fd,50) { illegal_1(); op_50(); } /* DB FD */
OP(fd,51) { illegal_1(); op_51(); } /* DB FD */
OP(fd,52) { illegal_1(); op_52(); } /* DB FD */
OP(fd,53) { illegal_1(); op_53(); } /* DB FD */
OP(fd,54) { R++; D = HY; } /* LD D,HY */
OP(fd,55) { R++; D = LY; } /* LD D,LY */
OP(fd,56) { R++; EAY; D = RM(EA); } /* LD D,(IY+o) */
OP(fd,57) { illegal_1(); op_57(); } /* DB FD */
OP(fd,58) { illegal_1(); op_58(); } /* DB FD */
OP(fd,59) { illegal_1(); op_59(); } /* DB FD */
OP(fd,5a) { illegal_1(); op_5a(); } /* DB FD */
OP(fd,5b) { illegal_1(); op_5b(); } /* DB FD */
OP(fd,5c) { R++; E = HY; } /* LD E,HY */
OP(fd,5d) { R++; E = LY; } /* LD E,LY */
OP(fd,5e) { R++; EAY; E = RM(EA); } /* LD E,(IY+o) */
OP(fd,5f) { illegal_1(); op_5f(); } /* DB FD */
OP(fd,60) { R++; HY = B; } /* LD HY,B */
OP(fd,61) { R++; HY = C; } /* LD HY,C */
OP(fd,62) { R++; HY = D; } /* LD HY,D */
OP(fd,63) { R++; HY = E; } /* LD HY,E */
OP(fd,64) { R++; } /* LD HY,HY */
OP(fd,65) { R++; HY = LY; } /* LD HY,LY */
OP(fd,66) { R++; EAY; H = RM(EA); } /* LD H,(IY+o) */
OP(fd,67) { R++; HY = A; } /* LD HY,A */
OP(fd,68) { R++; LY = B; } /* LD LY,B */
OP(fd,69) { R++; LY = C; } /* LD LY,C */
OP(fd,6a) { R++; LY = D; } /* LD LY,D */
OP(fd,6b) { R++; LY = E; } /* LD LY,E */
OP(fd,6c) { R++; LY = HY; } /* LD LY,HY */
OP(fd,6d) { R++; } /* LD LY,LY */
OP(fd,6e) { R++; EAY; L = RM(EA); } /* LD L,(IY+o) */
OP(fd,6f) { R++; LY = A; } /* LD LY,A */
OP(fd,70) { R++; EAY; WM( EA, B ); } /* LD (IY+o),B */
OP(fd,71) { R++; EAY; WM( EA, C ); } /* LD (IY+o),C */
OP(fd,72) { R++; EAY; WM( EA, D ); } /* LD (IY+o),D */
OP(fd,73) { R++; EAY; WM( EA, E ); } /* LD (IY+o),E */
OP(fd,74) { R++; EAY; WM( EA, H ); } /* LD (IY+o),H */
OP(fd,75) { R++; EAY; WM( EA, L ); } /* LD (IY+o),L */
OP(fd,76) { illegal_1(); op_76(); } /* DB FD */
OP(fd,77) { R++; EAY; WM( EA, A ); } /* LD (IY+o),A */
OP(fd,78) { illegal_1(); op_78(); } /* DB FD */
OP(fd,79) { illegal_1(); op_79(); } /* DB FD */
OP(fd,7a) { illegal_1(); op_7a(); } /* DB FD */
OP(fd,7b) { illegal_1(); op_7b(); } /* DB FD */
OP(fd,7c) { R++; A = HY; } /* LD A,HY */
OP(fd,7d) { R++; A = LY; } /* LD A,LY */
OP(fd,7e) { R++; EAY; A = RM(EA); } /* LD A,(IY+o) */
OP(fd,7f) { illegal_1(); op_7f(); } /* DB FD */
OP(fd,80) { illegal_1(); op_80(); } /* DB FD */
OP(fd,81) { illegal_1(); op_81(); } /* DB FD */
OP(fd,82) { illegal_1(); op_82(); } /* DB FD */
OP(fd,83) { illegal_1(); op_83(); } /* DB FD */
OP(fd,84) { R++; ADD(HY); } /* ADD A,HY */
OP(fd,85) { R++; ADD(LY); } /* ADD A,LY */
OP(fd,86) { R++; EAY; ADD(RM(EA)); } /* ADD A,(IY+o) */
OP(fd,87) { illegal_1(); op_87(); } /* DB FD */
OP(fd,88) { illegal_1(); op_88(); } /* DB FD */
OP(fd,89) { illegal_1(); op_89(); } /* DB FD */
OP(fd,8a) { illegal_1(); op_8a(); } /* DB FD */
OP(fd,8b) { illegal_1(); op_8b(); } /* DB FD */
OP(fd,8c) { R++; ADC(HY); } /* ADC A,HY */
OP(fd,8d) { R++; ADC(LY); } /* ADC A,LY */
OP(fd,8e) { R++; EAY; ADC(RM(EA)); } /* ADC A,(IY+o) */
OP(fd,8f) { illegal_1(); op_8f(); } /* DB FD */
OP(fd,90) { illegal_1(); op_90(); } /* DB FD */
OP(fd,91) { illegal_1(); op_91(); } /* DB FD */
OP(fd,92) { illegal_1(); op_92(); } /* DB FD */
OP(fd,93) { illegal_1(); op_93(); } /* DB FD */
OP(fd,94) { R++; SUB(HY); } /* SUB HY */
OP(fd,95) { R++; SUB(LY); } /* SUB LY */
OP(fd,96) { R++; EAY; SUB(RM(EA)); } /* SUB (IY+o) */
OP(fd,97) { illegal_1(); op_97(); } /* DB FD */
OP(fd,98) { illegal_1(); op_98(); } /* DB FD */
OP(fd,99) { illegal_1(); op_99(); } /* DB FD */
OP(fd,9a) { illegal_1(); op_9a(); } /* DB FD */
OP(fd,9b) { illegal_1(); op_9b(); } /* DB FD */
OP(fd,9c) { R++; SBC(HY); } /* SBC A,HY */
OP(fd,9d) { R++; SBC(LY); } /* SBC A,LY */
OP(fd,9e) { R++; EAY; SBC(RM(EA)); } /* SBC A,(IY+o) */
OP(fd,9f) { illegal_1(); op_9f(); } /* DB FD */
OP(fd,a0) { illegal_1(); op_a0(); } /* DB FD */
OP(fd,a1) { illegal_1(); op_a1(); } /* DB FD */
OP(fd,a2) { illegal_1(); op_a2(); } /* DB FD */
OP(fd,a3) { illegal_1(); op_a3(); } /* DB FD */
OP(fd,a4) { R++; AND(HY); } /* AND HY */
OP(fd,a5) { R++; AND(LY); } /* AND LY */
OP(fd,a6) { R++; EAY; AND(RM(EA)); } /* AND (IY+o) */
OP(fd,a7) { illegal_1(); op_a7(); } /* DB FD */
OP(fd,a8) { illegal_1(); op_a8(); } /* DB FD */
OP(fd,a9) { illegal_1(); op_a9(); } /* DB FD */
OP(fd,aa) { illegal_1(); op_aa(); } /* DB FD */
OP(fd,ab) { illegal_1(); op_ab(); } /* DB FD */
OP(fd,ac) { R++; XOR(HY); } /* XOR HY */
OP(fd,ad) { R++; XOR(LY); } /* XOR LY */
OP(fd,ae) { R++; EAY; XOR(RM(EA)); } /* XOR (IY+o) */
OP(fd,af) { illegal_1(); op_af(); } /* DB FD */
OP(fd,b0) { illegal_1(); op_b0(); } /* DB FD */
OP(fd,b1) { illegal_1(); op_b1(); } /* DB FD */
OP(fd,b2) { illegal_1(); op_b2(); } /* DB FD */
OP(fd,b3) { illegal_1(); op_b3(); } /* DB FD */
OP(fd,b4) { R++; OR(HY); } /* OR HY */
OP(fd,b5) { R++; OR(LY); } /* OR LY */
OP(fd,b6) { R++; EAY; OR(RM(EA)); } /* OR (IY+o) */
OP(fd,b7) { illegal_1(); op_b7(); } /* DB FD */
OP(fd,b8) { illegal_1(); op_b8(); } /* DB FD */
OP(fd,b9) { illegal_1(); op_b9(); } /* DB FD */
OP(fd,ba) { illegal_1(); op_ba(); } /* DB FD */
OP(fd,bb) { illegal_1(); op_bb(); } /* DB FD */
OP(fd,bc) { R++; CP(HY); } /* CP HY */
OP(fd,bd) { R++; CP(LY); } /* CP LY */
OP(fd,be) { R++; EAY; CP(RM(EA)); } /* CP (IY+o) */
OP(fd,bf) { illegal_1(); op_bf(); } /* DB FD */
OP(fd,c0) { illegal_1(); op_c0(); } /* DB FD */
OP(fd,c1) { illegal_1(); op_c1(); } /* DB FD */
OP(fd,c2) { illegal_1(); op_c2(); } /* DB FD */
OP(fd,c3) { illegal_1(); op_c3(); } /* DB FD */
OP(fd,c4) { illegal_1(); op_c4(); } /* DB FD */
OP(fd,c5) { illegal_1(); op_c5(); } /* DB FD */
OP(fd,c6) { illegal_1(); op_c6(); } /* DB FD */
OP(fd,c7) { illegal_1(); op_c7(); } /* DB FD */
OP(fd,c8) { illegal_1(); op_c8(); } /* DB FD */
OP(fd,c9) { illegal_1(); op_c9(); } /* DB FD */
OP(fd,ca) { illegal_1(); op_ca(); } /* DB FD */
OP(fd,cb) { R++; EAY; EXEC(xycb,ARG()); } /* ** FD CB xx */
OP(fd,cc) { illegal_1(); op_cc(); } /* DB FD */
OP(fd,cd) { illegal_1(); op_cd(); } /* DB FD */
OP(fd,ce) { illegal_1(); op_ce(); } /* DB FD */
OP(fd,cf) { illegal_1(); op_cf(); } /* DB FD */
OP(fd,d0) { illegal_1(); op_d0(); } /* DB FD */
OP(fd,d1) { illegal_1(); op_d1(); } /* DB FD */
OP(fd,d2) { illegal_1(); op_d2(); } /* DB FD */
OP(fd,d3) { illegal_1(); op_d3(); } /* DB FD */
OP(fd,d4) { illegal_1(); op_d4(); } /* DB FD */
OP(fd,d5) { illegal_1(); op_d5(); } /* DB FD */
OP(fd,d6) { illegal_1(); op_d6(); } /* DB FD */
OP(fd,d7) { illegal_1(); op_d7(); } /* DB FD */
OP(fd,d8) { illegal_1(); op_d8(); } /* DB FD */
OP(fd,d9) { illegal_1(); op_d9(); } /* DB FD */
OP(fd,da) { illegal_1(); op_da(); } /* DB FD */
OP(fd,db) { illegal_1(); op_db(); } /* DB FD */
OP(fd,dc) { illegal_1(); op_dc(); } /* DB FD */
OP(fd,dd) { illegal_1(); op_dd(); } /* DB FD */
OP(fd,de) { illegal_1(); op_de(); } /* DB FD */
OP(fd,df) { illegal_1(); op_df(); } /* DB FD */
OP(fd,e0) { illegal_1(); op_e0(); } /* DB FD */
OP(fd,e1) { R++; POP( iy ); } /* POP IY */
OP(fd,e2) { illegal_1(); op_e2(); } /* DB FD */
OP(fd,e3) { R++; EXSP( iy ); } /* EX (SP),IY */
OP(fd,e4) { illegal_1(); op_e4(); } /* DB FD */
OP(fd,e5) { R++; PUSH( iy ); } /* PUSH IY */
OP(fd,e6) { illegal_1(); op_e6(); } /* DB FD */
OP(fd,e7) { illegal_1(); op_e7(); } /* DB FD */
OP(fd,e8) { illegal_1(); op_e8(); } /* DB FD */
OP(fd,e9) { R++; PC = IY; change_pc(PCD); } /* JP (IY) */
OP(fd,ea) { illegal_1(); op_ea(); } /* DB FD */
OP(fd,eb) { illegal_1(); op_eb(); } /* DB FD */
OP(fd,ec) { illegal_1(); op_ec(); } /* DB FD */
OP(fd,ed) { illegal_1(); op_ed(); } /* DB FD */
OP(fd,ee) { illegal_1(); op_ee(); } /* DB FD */
OP(fd,ef) { illegal_1(); op_ef(); } /* DB FD */
OP(fd,f0) { illegal_1(); op_f0(); } /* DB FD */
OP(fd,f1) { illegal_1(); op_f1(); } /* DB FD */
OP(fd,f2) { illegal_1(); op_f2(); } /* DB FD */
OP(fd,f3) { illegal_1(); op_f3(); } /* DB FD */
OP(fd,f4) { illegal_1(); op_f4(); } /* DB FD */
OP(fd,f5) { illegal_1(); op_f5(); } /* DB FD */
OP(fd,f6) { illegal_1(); op_f6(); } /* DB FD */
OP(fd,f7) { illegal_1(); op_f7(); } /* DB FD */
OP(fd,f8) { illegal_1(); op_f8(); } /* DB FD */
OP(fd,f9) { R++; SP = IY; } /* LD SP,IY */
OP(fd,fa) { illegal_1(); op_fa(); } /* DB FD */
OP(fd,fb) { illegal_1(); op_fb(); } /* DB FD */
OP(fd,fc) { illegal_1(); op_fc(); } /* DB FD */
OP(fd,fd) { illegal_1(); op_fd(); } /* DB FD */
OP(fd,fe) { illegal_1(); op_fe(); } /* DB FD */
OP(fd,ff) { illegal_1(); op_ff(); } /* DB FD */
OP(illegal,2)
{
#if VERBOSE
logerror("Z80 #%d ill. opcode $ed $%02x\n",
cpu_getactivecpu(), cpu_readop((PCD-1)&0xffff));
#endif
}
/**********************************************************
* special opcodes (ED prefix)
**********************************************************/
OP(ed,00) { illegal_2(); } /* DB ED */
OP(ed,01) { illegal_2(); } /* DB ED */
OP(ed,02) { illegal_2(); } /* DB ED */
OP(ed,03) { illegal_2(); } /* DB ED */
OP(ed,04) { illegal_2(); } /* DB ED */
OP(ed,05) { illegal_2(); } /* DB ED */
OP(ed,06) { illegal_2(); } /* DB ED */
OP(ed,07) { illegal_2(); } /* DB ED */
OP(ed,08) { illegal_2(); } /* DB ED */
OP(ed,09) { illegal_2(); } /* DB ED */
OP(ed,0a) { illegal_2(); } /* DB ED */
OP(ed,0b) { illegal_2(); } /* DB ED */
OP(ed,0c) { illegal_2(); } /* DB ED */
OP(ed,0d) { illegal_2(); } /* DB ED */
OP(ed,0e) { illegal_2(); } /* DB ED */
OP(ed,0f) { illegal_2(); } /* DB ED */
OP(ed,10) { illegal_2(); } /* DB ED */
OP(ed,11) { illegal_2(); } /* DB ED */
OP(ed,12) { illegal_2(); } /* DB ED */
OP(ed,13) { illegal_2(); } /* DB ED */
OP(ed,14) { illegal_2(); } /* DB ED */
OP(ed,15) { illegal_2(); } /* DB ED */
OP(ed,16) { illegal_2(); } /* DB ED */
OP(ed,17) { illegal_2(); } /* DB ED */
OP(ed,18) { illegal_2(); } /* DB ED */
OP(ed,19) { illegal_2(); } /* DB ED */
OP(ed,1a) { illegal_2(); } /* DB ED */
OP(ed,1b) { illegal_2(); } /* DB ED */
OP(ed,1c) { illegal_2(); } /* DB ED */
OP(ed,1d) { illegal_2(); } /* DB ED */
OP(ed,1e) { illegal_2(); } /* DB ED */
OP(ed,1f) { illegal_2(); } /* DB ED */
OP(ed,20) { illegal_2(); } /* DB ED */
OP(ed,21) { illegal_2(); } /* DB ED */
OP(ed,22) { illegal_2(); } /* DB ED */
OP(ed,23) { illegal_2(); } /* DB ED */
OP(ed,24) { illegal_2(); } /* DB ED */
OP(ed,25) { illegal_2(); } /* DB ED */
OP(ed,26) { illegal_2(); } /* DB ED */
OP(ed,27) { illegal_2(); } /* DB ED */
OP(ed,28) { illegal_2(); } /* DB ED */
OP(ed,29) { illegal_2(); } /* DB ED */
OP(ed,2a) { illegal_2(); } /* DB ED */
OP(ed,2b) { illegal_2(); } /* DB ED */
OP(ed,2c) { illegal_2(); } /* DB ED */
OP(ed,2d) { illegal_2(); } /* DB ED */
OP(ed,2e) { illegal_2(); } /* DB ED */
OP(ed,2f) { illegal_2(); } /* DB ED */
OP(ed,30) { illegal_2(); } /* DB ED */
OP(ed,31) { illegal_2(); } /* DB ED */
OP(ed,32) { illegal_2(); } /* DB ED */
OP(ed,33) { illegal_2(); } /* DB ED */
OP(ed,34) { illegal_2(); } /* DB ED */
OP(ed,35) { illegal_2(); } /* DB ED */
OP(ed,36) { illegal_2(); } /* DB ED */
OP(ed,37) { illegal_2(); } /* DB ED */
OP(ed,38) { illegal_2(); } /* DB ED */
OP(ed,39) { illegal_2(); } /* DB ED */
OP(ed,3a) { illegal_2(); } /* DB ED */
OP(ed,3b) { illegal_2(); } /* DB ED */
OP(ed,3c) { illegal_2(); } /* DB ED */
OP(ed,3d) { illegal_2(); } /* DB ED */
OP(ed,3e) { illegal_2(); } /* DB ED */
OP(ed,3f) { illegal_2(); } /* DB ED */
OP(ed,40) { B = IN(BC); F = (F & CF) | SZP[B]; } /* IN B,(C) */
OP(ed,41) { OUT(BC, B); } /* OUT (C),B */
OP(ed,42) { SBC16( bc ); } /* SBC HL,BC */
OP(ed,43) { EA = ARG16(); WM16( EA, &Z80.bc ); } /* LD (w),BC */
OP(ed,44) { NEG; } /* NEG */
OP(ed,45) { RETN; } /* RETN; */
OP(ed,46) { IM = 0; } /* IM 0 */
OP(ed,47) { LD_I_A; } /* LD I,A */
OP(ed,48) { C = IN(BC); F = (F & CF) | SZP[C]; } /* IN C,(C) */
OP(ed,49) { OUT(BC, C); } /* OUT (C),C */
OP(ed,4a) { ADC16( bc ); } /* ADC HL,BC */
OP(ed,4b) { EA = ARG16(); RM16( EA, &Z80.bc ); } /* LD BC,(w) */
OP(ed,4c) { NEG; } /* NEG */
OP(ed,4d) { RETI; } /* RETI */
OP(ed,4e) { IM = 0; } /* IM 0 */
OP(ed,4f) { LD_R_A; } /* LD R,A */
OP(ed,50) { D = IN(BC); F = (F & CF) | SZP[D]; } /* IN D,(C) */
OP(ed,51) { OUT(BC, D); } /* OUT (C),D */
OP(ed,52) { SBC16( de ); } /* SBC HL,DE */
OP(ed,53) { EA = ARG16(); WM16( EA, &Z80.de ); } /* LD (w),DE */
OP(ed,54) { NEG; } /* NEG */
OP(ed,55) { RETN; } /* RETN; */
OP(ed,56) { IM = 1; } /* IM 1 */
OP(ed,57) { LD_A_I; } /* LD A,I */
OP(ed,58) { E = IN(BC); F = (F & CF) | SZP[E]; } /* IN E,(C) */
OP(ed,59) { OUT(BC, E); } /* OUT (C),E */
OP(ed,5a) { ADC16( de ); } /* ADC HL,DE */
OP(ed,5b) { EA = ARG16(); RM16( EA, &Z80.de ); } /* LD DE,(w) */
OP(ed,5c) { NEG; } /* NEG */
OP(ed,5d) { RETI; } /* RETI */
OP(ed,5e) { IM = 2; } /* IM 2 */
OP(ed,5f) { LD_A_R; } /* LD A,R */
OP(ed,60) { H = IN(BC); F = (F & CF) | SZP[H]; } /* IN H,(C) */
OP(ed,61) { OUT(BC, H); } /* OUT (C),H */
OP(ed,62) { SBC16( hl ); } /* SBC HL,HL */
OP(ed,63) { EA = ARG16(); WM16( EA, &Z80.hl ); } /* LD (w),HL */
OP(ed,64) { NEG; } /* NEG */
OP(ed,65) { RETN; } /* RETN; */
OP(ed,66) { IM = 0; } /* IM 0 */
OP(ed,67) { RRD; } /* RRD (HL) */
OP(ed,68) { L = IN(BC); F = (F & CF) | SZP[L]; } /* IN L,(C) */
OP(ed,69) { OUT(BC, L); } /* OUT (C),L */
OP(ed,6a) { ADC16( hl ); } /* ADC HL,HL */
OP(ed,6b) { EA = ARG16(); RM16( EA, &Z80.hl ); } /* LD HL,(w) */
OP(ed,6c) { NEG; } /* NEG */
OP(ed,6d) { RETI; } /* RETI */
OP(ed,6e) { IM = 0; } /* IM 0 */
OP(ed,6f) { RLD; } /* RLD (HL) */
OP(ed,70) { UINT8 res = IN(BC); F = (F & CF) | SZP[res]; } /* IN 0,(C) */
OP(ed,71) { OUT(BC, 0); } /* OUT (C),0 */
OP(ed,72) { SBC16( sp ); } /* SBC HL,SP */
OP(ed,73) { EA = ARG16(); WM16( EA, &Z80.sp ); } /* LD (w),SP */
OP(ed,74) { NEG; } /* NEG */
OP(ed,75) { RETN; } /* RETN; */
OP(ed,76) { IM = 1; } /* IM 1 */
OP(ed,77) { illegal_2(); } /* DB ED,77 */
OP(ed,78) { A = IN(BC); F = (F & CF) | SZP[A]; } /* IN E,(C) */
OP(ed,79) { OUT(BC, A); } /* OUT (C),A */
OP(ed,7a) { ADC16( sp ); } /* ADC HL,SP */
OP(ed,7b) { EA = ARG16(); RM16( EA, &Z80.sp ); } /* LD SP,(w) */
OP(ed,7c) { NEG; } /* NEG */
OP(ed,7d) { RETI; } /* RETI */
OP(ed,7e) { IM = 2; } /* IM 2 */
OP(ed,7f) { illegal_2(); } /* DB ED,7F */
OP(ed,80) { illegal_2(); } /* DB ED */
OP(ed,81) { illegal_2(); } /* DB ED */
OP(ed,82) { illegal_2(); } /* DB ED */
OP(ed,83) { illegal_2(); } /* DB ED */
OP(ed,84) { illegal_2(); } /* DB ED */
OP(ed,85) { illegal_2(); } /* DB ED */
OP(ed,86) { illegal_2(); } /* DB ED */
OP(ed,87) { illegal_2(); } /* DB ED */
OP(ed,88) { illegal_2(); } /* DB ED */
OP(ed,89) { illegal_2(); } /* DB ED */
OP(ed,8a) { illegal_2(); } /* DB ED */
OP(ed,8b) { illegal_2(); } /* DB ED */
OP(ed,8c) { illegal_2(); } /* DB ED */
OP(ed,8d) { illegal_2(); } /* DB ED */
OP(ed,8e) { illegal_2(); } /* DB ED */
OP(ed,8f) { illegal_2(); } /* DB ED */
OP(ed,90) { illegal_2(); } /* DB ED */
OP(ed,91) { illegal_2(); } /* DB ED */
OP(ed,92) { illegal_2(); } /* DB ED */
OP(ed,93) { illegal_2(); } /* DB ED */
OP(ed,94) { illegal_2(); } /* DB ED */
OP(ed,95) { illegal_2(); } /* DB ED */
OP(ed,96) { illegal_2(); } /* DB ED */
OP(ed,97) { illegal_2(); } /* DB ED */
OP(ed,98) { illegal_2(); } /* DB ED */
OP(ed,99) { illegal_2(); } /* DB ED */
OP(ed,9a) { illegal_2(); } /* DB ED */
OP(ed,9b) { illegal_2(); } /* DB ED */
OP(ed,9c) { illegal_2(); } /* DB ED */
OP(ed,9d) { illegal_2(); } /* DB ED */
OP(ed,9e) { illegal_2(); } /* DB ED */
OP(ed,9f) { illegal_2(); } /* DB ED */
OP(ed,a0) { LDI; } /* LDI */
OP(ed,a1) { CPI; } /* CPI */
OP(ed,a2) { INI; } /* INI */
OP(ed,a3) { OUTI; } /* OUTI */
OP(ed,a4) { illegal_2(); } /* DB ED */
OP(ed,a5) { illegal_2(); } /* DB ED */
OP(ed,a6) { illegal_2(); } /* DB ED */
OP(ed,a7) { illegal_2(); } /* DB ED */
OP(ed,a8) { LDD; } /* LDD */
OP(ed,a9) { CPD; } /* CPD */
OP(ed,aa) { IND; } /* IND */
OP(ed,ab) { OUTD; } /* OUTD */
OP(ed,ac) { illegal_2(); } /* DB ED */
OP(ed,ad) { illegal_2(); } /* DB ED */
OP(ed,ae) { illegal_2(); } /* DB ED */
OP(ed,af) { illegal_2(); } /* DB ED */
OP(ed,b0) { LDIR; } /* LDIR */
OP(ed,b1) { CPIR; } /* CPIR */
OP(ed,b2) { INIR; } /* INIR */
OP(ed,b3) { OTIR; } /* OTIR */
OP(ed,b4) { illegal_2(); } /* DB ED */
OP(ed,b5) { illegal_2(); } /* DB ED */
OP(ed,b6) { illegal_2(); } /* DB ED */
OP(ed,b7) { illegal_2(); } /* DB ED */
OP(ed,b8) { LDDR; } /* LDDR */
OP(ed,b9) { CPDR; } /* CPDR */
OP(ed,ba) { INDR; } /* INDR */
OP(ed,bb) { OTDR; } /* OTDR */
OP(ed,bc) { illegal_2(); } /* DB ED */
OP(ed,bd) { illegal_2(); } /* DB ED */
OP(ed,be) { illegal_2(); } /* DB ED */
OP(ed,bf) { illegal_2(); } /* DB ED */
OP(ed,c0) { illegal_2(); } /* DB ED */
OP(ed,c1) { illegal_2(); } /* DB ED */
OP(ed,c2) { illegal_2(); } /* DB ED */
OP(ed,c3) { illegal_2(); } /* DB ED */
OP(ed,c4) { illegal_2(); } /* DB ED */
OP(ed,c5) { illegal_2(); } /* DB ED */
OP(ed,c6) { illegal_2(); } /* DB ED */
OP(ed,c7) { illegal_2(); } /* DB ED */
OP(ed,c8) { illegal_2(); } /* DB ED */
OP(ed,c9) { illegal_2(); } /* DB ED */
OP(ed,ca) { illegal_2(); } /* DB ED */
OP(ed,cb) { illegal_2(); } /* DB ED */
OP(ed,cc) { illegal_2(); } /* DB ED */
OP(ed,cd) { illegal_2(); } /* DB ED */
OP(ed,ce) { illegal_2(); } /* DB ED */
OP(ed,cf) { illegal_2(); } /* DB ED */
OP(ed,d0) { illegal_2(); } /* DB ED */
OP(ed,d1) { illegal_2(); } /* DB ED */
OP(ed,d2) { illegal_2(); } /* DB ED */
OP(ed,d3) { illegal_2(); } /* DB ED */
OP(ed,d4) { illegal_2(); } /* DB ED */
OP(ed,d5) { illegal_2(); } /* DB ED */
OP(ed,d6) { illegal_2(); } /* DB ED */
OP(ed,d7) { illegal_2(); } /* DB ED */
OP(ed,d8) { illegal_2(); } /* DB ED */
OP(ed,d9) { illegal_2(); } /* DB ED */
OP(ed,da) { illegal_2(); } /* DB ED */
OP(ed,db) { illegal_2(); } /* DB ED */
OP(ed,dc) { illegal_2(); } /* DB ED */
OP(ed,dd) { illegal_2(); } /* DB ED */
OP(ed,de) { illegal_2(); } /* DB ED */
OP(ed,df) { illegal_2(); } /* DB ED */
OP(ed,e0) { illegal_2(); } /* DB ED */
OP(ed,e1) { illegal_2(); } /* DB ED */
OP(ed,e2) { illegal_2(); } /* DB ED */
OP(ed,e3) { illegal_2(); } /* DB ED */
OP(ed,e4) { illegal_2(); } /* DB ED */
OP(ed,e5) { illegal_2(); } /* DB ED */
OP(ed,e6) { illegal_2(); } /* DB ED */
OP(ed,e7) { illegal_2(); } /* DB ED */
OP(ed,e8) { illegal_2(); } /* DB ED */
OP(ed,e9) { illegal_2(); } /* DB ED */
OP(ed,ea) { illegal_2(); } /* DB ED */
OP(ed,eb) { illegal_2(); } /* DB ED */
OP(ed,ec) { illegal_2(); } /* DB ED */
OP(ed,ed) { illegal_2(); } /* DB ED */
OP(ed,ee) { illegal_2(); } /* DB ED */
OP(ed,ef) { illegal_2(); } /* DB ED */
OP(ed,f0) { illegal_2(); } /* DB ED */
OP(ed,f1) { illegal_2(); } /* DB ED */
OP(ed,f2) { illegal_2(); } /* DB ED */
OP(ed,f3) { illegal_2(); } /* DB ED */
OP(ed,f4) { illegal_2(); } /* DB ED */
OP(ed,f5) { illegal_2(); } /* DB ED */
OP(ed,f6) { illegal_2(); } /* DB ED */
OP(ed,f7) { illegal_2(); } /* DB ED */
OP(ed,f8) { illegal_2(); } /* DB ED */
OP(ed,f9) { illegal_2(); } /* DB ED */
OP(ed,fa) { illegal_2(); } /* DB ED */
OP(ed,fb) { illegal_2(); } /* DB ED */
OP(ed,fc) { illegal_2(); } /* DB ED */
OP(ed,fd) { illegal_2(); } /* DB ED */
OP(ed,fe) { illegal_2(); } /* DB ED */
OP(ed,ff) { illegal_2(); } /* DB ED */
/**********************************************************
* main opcodes
**********************************************************/
OP(op,00) { } /* NOP */
OP(op,01) { BC = ARG16(); } /* LD BC,w */
OP(op,02) { WM( BC, A ); } /* LD (BC),A */
OP(op,03) { BC++; } /* INC BC */
OP(op,04) { B = INC(B); } /* INC B */
OP(op,05) { B = DEC(B); } /* DEC B */
OP(op,06) { B = ARG(); } /* LD B,n */
OP(op,07) { RLCA; } /* RLCA */
OP(op,08) { EX_AF; } /* EX AF,AF' */
OP(op,09) { ADD16(hl, bc); } /* ADD HL,BC */
OP(op,0a) { A = RM( BC ); } /* LD A,(BC) */
OP(op,0b) { BC--; } /* DEC BC */
OP(op,0c) { C = INC(C); } /* INC C */
OP(op,0d) { C = DEC(C); } /* DEC C */
OP(op,0e) { C = ARG(); } /* LD C,n */
OP(op,0f) { RRCA; } /* RRCA */
OP(op,10) { B--; JR_COND( B, 0x10 ); } /* DJNZ o */
OP(op,11) { DE = ARG16(); } /* LD DE,w */
OP(op,12) { WM( DE, A ); } /* LD (DE),A */
OP(op,13) { DE++; } /* INC DE */
OP(op,14) { D = INC(D); } /* INC D */
OP(op,15) { D = DEC(D); } /* DEC D */
OP(op,16) { D = ARG(); } /* LD D,n */
OP(op,17) { RLA; } /* RLA */
OP(op,18) { JR(); } /* JR o */
OP(op,19) { ADD16(hl, de); } /* ADD HL,DE */
OP(op,1a) { A = RM( DE ); } /* LD A,(DE) */
OP(op,1b) { DE--; } /* DEC DE */
OP(op,1c) { E = INC(E); } /* INC E */
OP(op,1d) { E = DEC(E); } /* DEC E */
OP(op,1e) { E = ARG(); } /* LD E,n */
OP(op,1f) { RRA; } /* RRA */
OP(op,20) { JR_COND( !(F & ZF), 0x20 ); } /* JR NZ,o */
OP(op,21) { HL = ARG16(); } /* LD HL,w */
OP(op,22) { EA = ARG16(); WM16( EA, &Z80.hl ); } /* LD (w),HL */
OP(op,23) { HL++; } /* INC HL */
OP(op,24) { H = INC(H); } /* INC H */
OP(op,25) { H = DEC(H); } /* DEC H */
OP(op,26) { H = ARG(); } /* LD H,n */
OP(op,27) { DAA; } /* DAA */
OP(op,28) { JR_COND( F & ZF, 0x28 ); } /* JR Z,o */
OP(op,29) { ADD16(hl, hl); } /* ADD HL,HL */
OP(op,2a) { EA = ARG16(); RM16( EA, &Z80.hl ); } /* LD HL,(w) */
OP(op,2b) { HL--; } /* DEC HL */
OP(op,2c) { L = INC(L); } /* INC L */
OP(op,2d) { L = DEC(L); } /* DEC L */
OP(op,2e) { L = ARG(); } /* LD L,n */
OP(op,2f) { A ^= 0xff; F = (F&(SF|ZF|PF|CF))|HF|NF|(A&(YF|XF)); } /* CPL */
OP(op,30) { JR_COND( !(F & CF), 0x30 ); } /* JR NC,o */
OP(op,31) { SP = ARG16(); } /* LD SP,w */
OP(op,32) { EA = ARG16(); WM( EA, A ); } /* LD (w),A */
OP(op,33) { SP++; } /* INC SP */
OP(op,34) { WM( HL, INC(RM(HL)) ); } /* INC (HL) */
OP(op,35) { WM( HL, DEC(RM(HL)) ); } /* DEC (HL) */
OP(op,36) { WM( HL, ARG() ); } /* LD (HL),n */
OP(op,37) { F = (F & (SF|ZF|PF)) | CF | (A & (YF|XF)); } /* SCF */
OP(op,38) { JR_COND( F & CF, 0x38 ); } /* JR C,o */
OP(op,39) { ADD16(hl, sp); } /* ADD HL,SP */
OP(op,3a) { EA = ARG16(); A = RM( EA ); } /* LD A,(w) */
OP(op,3b) { SP--; } /* DEC SP */
OP(op,3c) { A = INC(A); } /* INC A */
OP(op,3d) { A = DEC(A); } /* DEC A */
OP(op,3e) { A = ARG(); } /* LD A,n */
OP(op,3f) { F = ((F&(SF|ZF|PF|CF))|((F&CF)<<4)|(A&(YF|XF)))^CF; } /* CCF */
OP(op,40) { } /* LD B,B */
OP(op,41) { B = C; } /* LD B,C */
OP(op,42) { B = D; } /* LD B,D */
OP(op,43) { B = E; } /* LD B,E */
OP(op,44) { B = H; } /* LD B,H */
OP(op,45) { B = L; } /* LD B,L */
OP(op,46) { B = RM(HL); } /* LD B,(HL) */
OP(op,47) { B = A; } /* LD B,A */
OP(op,48) { C = B; } /* LD C,B */
OP(op,49) { } /* LD C,C */
OP(op,4a) { C = D; } /* LD C,D */
OP(op,4b) { C = E; } /* LD C,E */
OP(op,4c) { C = H; } /* LD C,H */
OP(op,4d) { C = L; } /* LD C,L */
OP(op,4e) { C = RM(HL); } /* LD C,(HL) */
OP(op,4f) { C = A; } /* LD C,A */
OP(op,50) { D = B; } /* LD D,B */
OP(op,51) { D = C; } /* LD D,C */
OP(op,52) { } /* LD D,D */
OP(op,53) { D = E; } /* LD D,E */
OP(op,54) { D = H; } /* LD D,H */
OP(op,55) { D = L; } /* LD D,L */
OP(op,56) { D = RM(HL); } /* LD D,(HL) */
OP(op,57) { D = A; } /* LD D,A */
OP(op,58) { E = B; } /* LD E,B */
OP(op,59) { E = C; } /* LD E,C */
OP(op,5a) { E = D; } /* LD E,D */
OP(op,5b) { } /* LD E,E */
OP(op,5c) { E = H; } /* LD E,H */
OP(op,5d) { E = L; } /* LD E,L */
OP(op,5e) { E = RM(HL); } /* LD E,(HL) */
OP(op,5f) { E = A; } /* LD E,A */
OP(op,60) { H = B; } /* LD H,B */
OP(op,61) { H = C; } /* LD H,C */
OP(op,62) { H = D; } /* LD H,D */
OP(op,63) { H = E; } /* LD H,E */
OP(op,64) { } /* LD H,H */
OP(op,65) { H = L; } /* LD H,L */
OP(op,66) { H = RM(HL); } /* LD H,(HL) */
OP(op,67) { H = A; } /* LD H,A */
OP(op,68) { L = B; } /* LD L,B */
OP(op,69) { L = C; } /* LD L,C */
OP(op,6a) { L = D; } /* LD L,D */
OP(op,6b) { L = E; } /* LD L,E */
OP(op,6c) { L = H; } /* LD L,H */
OP(op,6d) { } /* LD L,L */
OP(op,6e) { L = RM(HL); } /* LD L,(HL) */
OP(op,6f) { L = A; } /* LD L,A */
OP(op,70) { WM( HL, B ); } /* LD (HL),B */
OP(op,71) { WM( HL, C ); } /* LD (HL),C */
OP(op,72) { WM( HL, D ); } /* LD (HL),D */
OP(op,73) { WM( HL, E ); } /* LD (HL),E */
OP(op,74) { WM( HL, H ); } /* LD (HL),H */
OP(op,75) { WM( HL, L ); } /* LD (HL),L */
OP(op,76) { ENTER_HALT; } /* HALT */
OP(op,77) { WM( HL, A ); } /* LD (HL),A */
OP(op,78) { A = B; } /* LD A,B */
OP(op,79) { A = C; } /* LD A,C */
OP(op,7a) { A = D; } /* LD A,D */
OP(op,7b) { A = E; } /* LD A,E */
OP(op,7c) { A = H; } /* LD A,H */
OP(op,7d) { A = L; } /* LD A,L */
OP(op,7e) { A = RM(HL); } /* LD A,(HL) */
OP(op,7f) { } /* LD A,A */
OP(op,80) { ADD(B); } /* ADD A,B */
OP(op,81) { ADD(C); } /* ADD A,C */
OP(op,82) { ADD(D); } /* ADD A,D */
OP(op,83) { ADD(E); } /* ADD A,E */
OP(op,84) { ADD(H); } /* ADD A,H */
OP(op,85) { ADD(L); } /* ADD A,L */
OP(op,86) { ADD(RM(HL)); } /* ADD A,(HL) */
OP(op,87) { ADD(A); } /* ADD A,A */
OP(op,88) { ADC(B); } /* ADC A,B */
OP(op,89) { ADC(C); } /* ADC A,C */
OP(op,8a) { ADC(D); } /* ADC A,D */
OP(op,8b) { ADC(E); } /* ADC A,E */
OP(op,8c) { ADC(H); } /* ADC A,H */
OP(op,8d) { ADC(L); } /* ADC A,L */
OP(op,8e) { ADC(RM(HL)); } /* ADC A,(HL) */
OP(op,8f) { ADC(A); } /* ADC A,A */
OP(op,90) { SUB(B); } /* SUB B */
OP(op,91) { SUB(C); } /* SUB C */
OP(op,92) { SUB(D); } /* SUB D */
OP(op,93) { SUB(E); } /* SUB E */
OP(op,94) { SUB(H); } /* SUB H */
OP(op,95) { SUB(L); } /* SUB L */
OP(op,96) { SUB(RM(HL)); } /* SUB (HL) */
OP(op,97) { SUB(A); } /* SUB A */
OP(op,98) { SBC(B); } /* SBC A,B */
OP(op,99) { SBC(C); } /* SBC A,C */
OP(op,9a) { SBC(D); } /* SBC A,D */
OP(op,9b) { SBC(E); } /* SBC A,E */
OP(op,9c) { SBC(H); } /* SBC A,H */
OP(op,9d) { SBC(L); } /* SBC A,L */
OP(op,9e) { SBC(RM(HL)); } /* SBC A,(HL) */
OP(op,9f) { SBC(A); } /* SBC A,A */
OP(op,a0) { AND(B); } /* AND B */
OP(op,a1) { AND(C); } /* AND C */
OP(op,a2) { AND(D); } /* AND D */
OP(op,a3) { AND(E); } /* AND E */
OP(op,a4) { AND(H); } /* AND H */
OP(op,a5) { AND(L); } /* AND L */
OP(op,a6) { AND(RM(HL)); } /* AND (HL) */
OP(op,a7) { AND(A); } /* AND A */
OP(op,a8) { XOR(B); } /* XOR B */
OP(op,a9) { XOR(C); } /* XOR C */
OP(op,aa) { XOR(D); } /* XOR D */
OP(op,ab) { XOR(E); } /* XOR E */
OP(op,ac) { XOR(H); } /* XOR H */
OP(op,ad) { XOR(L); } /* XOR L */
OP(op,ae) { XOR(RM(HL)); } /* XOR (HL) */
OP(op,af) { XOR(A); } /* XOR A */
OP(op,b0) { OR(B); } /* OR B */
OP(op,b1) { OR(C); } /* OR C */
OP(op,b2) { OR(D); } /* OR D */
OP(op,b3) { OR(E); } /* OR E */
OP(op,b4) { OR(H); } /* OR H */
OP(op,b5) { OR(L); } /* OR L */
OP(op,b6) { OR(RM(HL)); } /* OR (HL) */
OP(op,b7) { OR(A); } /* OR A */
OP(op,b8) { CP(B); } /* CP B */
OP(op,b9) { CP(C); } /* CP C */
OP(op,ba) { CP(D); } /* CP D */
OP(op,bb) { CP(E); } /* CP E */
OP(op,bc) { CP(H); } /* CP H */
OP(op,bd) { CP(L); } /* CP L */
OP(op,be) { CP(RM(HL)); } /* CP (HL) */
OP(op,bf) { CP(A); } /* CP A */
OP(op,c0) { RET_COND( !(F & ZF), 0xc0 ); } /* RET NZ */
OP(op,c1) { POP( bc ); } /* POP BC */
OP(op,c2) { JP_COND( !(F & ZF) ); } /* JP NZ,a */
OP(op,c3) { JP; } /* JP a */
OP(op,c4) { CALL_COND( !(F & ZF), 0xc4 ); } /* CALL NZ,a */
OP(op,c5) { PUSH( bc ); } /* PUSH BC */
OP(op,c6) { ADD(ARG()); } /* ADD A,n */
OP(op,c7) { RST(0x00); } /* RST 0 */
OP(op,c8) { RET_COND( F & ZF, 0xc8 ); } /* RET Z */
OP(op,c9) { POP( pc ); change_pc(PCD); } /* RET */
OP(op,ca) { JP_COND( F & ZF ); } /* JP Z,a */
OP(op,cb) { R++; EXEC(cb,ROP()); } /* **** CB xx */
OP(op,cc) { CALL_COND( F & ZF, 0xcc ); } /* CALL Z,a */
OP(op,cd) { CALL(); } /* CALL a */
OP(op,ce) { ADC(ARG()); } /* ADC A,n */
OP(op,cf) { RST(0x08); } /* RST 1 */
OP(op,d0) { RET_COND( !(F & CF), 0xd0 ); } /* RET NC */
OP(op,d1) { POP( de ); } /* POP DE */
OP(op,d2) { JP_COND( !(F & CF) ); } /* JP NC,a */
OP(op,d3) { unsigned n = ARG() | (A << 8); OUT( n, A ); } /* OUT (n),A */
OP(op,d4) { CALL_COND( !(F & CF), 0xd4 ); } /* CALL NC,a */
OP(op,d5) { PUSH( de ); } /* PUSH DE */
OP(op,d6) { SUB(ARG()); } /* SUB n */
OP(op,d7) { RST(0x10); } /* RST 2 */
OP(op,d8) { RET_COND( F & CF, 0xd8 ); } /* RET C */
OP(op,d9) { EXX; } /* EXX */
OP(op,da) { JP_COND( F & CF ); } /* JP C,a */
OP(op,db) { unsigned n = ARG() | (A << 8); A = IN( n ); } /* IN A,(n) */
OP(op,dc) { CALL_COND( F & CF, 0xdc ); } /* CALL C,a */
OP(op,dd) { R++; EXEC(dd,ROP()); } /* **** DD xx */
OP(op,de) { SBC(ARG()); } /* SBC A,n */
OP(op,df) { RST(0x18); } /* RST 3 */
OP(op,e0) { RET_COND( !(F & PF), 0xe0 ); } /* RET PO */
OP(op,e1) { POP( hl ); } /* POP HL */
OP(op,e2) { JP_COND( !(F & PF) ); } /* JP PO,a */
OP(op,e3) { EXSP( hl ); } /* EX HL,(SP) */
OP(op,e4) { CALL_COND( !(F & PF), 0xe4 ); } /* CALL PO,a */
OP(op,e5) { PUSH( hl ); } /* PUSH HL */
OP(op,e6) { AND(ARG()); } /* AND n */
OP(op,e7) { RST(0x20); } /* RST 4 */
OP(op,e8) { RET_COND( F & PF, 0xe8 ); } /* RET PE */
OP(op,e9) { PC = HL; change_pc(PCD); } /* JP (HL) */
OP(op,ea) { JP_COND( F & PF ); } /* JP PE,a */
OP(op,eb) { EX_DE_HL; } /* EX DE,HL */
OP(op,ec) { CALL_COND( F & PF, 0xec ); } /* CALL PE,a */
OP(op,ed) { R++; EXEC(ed,ROP()); } /* **** ED xx */
OP(op,ee) { XOR(ARG()); } /* XOR n */
OP(op,ef) { RST(0x28); } /* RST 5 */
OP(op,f0) { RET_COND( !(F & SF), 0xf0 ); } /* RET P */
OP(op,f1) { POP( af ); } /* POP AF */
OP(op,f2) { JP_COND( !(F & SF) ); } /* JP P,a */
OP(op,f3) { IFF1 = IFF2 = 0; } /* DI */
OP(op,f4) { CALL_COND( !(F & SF), 0xf4 ); } /* CALL P,a */
OP(op,f5) { PUSH( af ); } /* PUSH AF */
OP(op,f6) { OR(ARG()); } /* OR n */
OP(op,f7) { RST(0x30); } /* RST 6 */
OP(op,f8) { RET_COND( F & SF, 0xf8 ); } /* RET M */
OP(op,f9) { SP = HL; } /* LD SP,HL */
OP(op,fa) { JP_COND(F & SF); } /* JP M,a */
OP(op,fb) { EI; } /* EI */
OP(op,fc) { CALL_COND( F & SF, 0xfc ); } /* CALL M,a */
OP(op,fd) { R++; EXEC(fd,ROP()); } /* **** FD xx */
OP(op,fe) { CP(ARG()); } /* CP n */
OP(op,ff) { RST(0x38); } /* RST 7 */
static void take_interrupt(void)
{
int irq_vector;
/* there isn't a valid previous program counter */
PRVPC = -1;
/* Check if processor was halted */
LEAVE_HALT;
/* Clear both interrupt flip flops */
IFF1 = IFF2 = 0;
/* call back the cpu interface to retrieve the vector */
irq_vector = (*Z80.irq_callback)(0);
LOG(("Z80 #%d single int. irq_vector $%02x\n", cpu_getactivecpu(), irq_vector));
/* Interrupt mode 2. Call [Z80.i:databyte] */
if( IM == 2 )
{
irq_vector = (irq_vector & 0xff) | (I << 8);
PUSH( pc );
RM16( irq_vector, &Z80.pc );
LOG(("Z80 #%d IM2 [$%04x] = $%04x\n",cpu_getactivecpu() , irq_vector, PCD));
/* CALL opcode timing */
z80_ICount -= cc[Z80_TABLE_op][0xcd];
}
else
/* Interrupt mode 1. RST 38h */
if( IM == 1 )
{
LOG(("Z80 #%d IM1 $0038\n",cpu_getactivecpu() ));
PUSH( pc );
PCD = 0x0038;
/* RST $38 + 'interrupt latency' cycles */
z80_ICount -= cc[Z80_TABLE_op][0xff] + cc[Z80_TABLE_ex][0xff];
}
else
{
/* Interrupt mode 0. We check for CALL and JP instructions, */
/* if neither of these were found we assume a 1 byte opcode */
/* was placed on the databus */
LOG(("Z80 #%d IM0 $%04x\n",cpu_getactivecpu() , irq_vector));
switch (irq_vector & 0xff0000)
{
case 0xcd0000: /* call */
PUSH( pc );
PCD = irq_vector & 0xffff;
/* CALL $xxxx + 'interrupt latency' cycles */
z80_ICount -= cc[Z80_TABLE_op][0xcd] + cc[Z80_TABLE_ex][0xff];
break;
case 0xc30000: /* jump */
PCD = irq_vector & 0xffff;
/* JP $xxxx + 2 cycles */
z80_ICount -= cc[Z80_TABLE_op][0xc3] + cc[Z80_TABLE_ex][0xff];
break;
default: /* rst (or other opcodes?) */
PUSH( pc );
PCD = irq_vector & 0x0038;
/* RST $xx + 2 cycles */
z80_ICount -= cc[Z80_TABLE_op][PCD] + cc[Z80_TABLE_ex][PCD];
break;
}
}
change_pc(PCD);
}
/****************************************************************************
* Processor initialization
****************************************************************************/
void z80_init(int index, int clock, const void *config, int (*irqcallback)(int))
{
int i, p;
/* setup cycle tables */
cc[Z80_TABLE_op] = cc_op;
cc[Z80_TABLE_cb] = cc_cb;
cc[Z80_TABLE_ed] = cc_ed;
cc[Z80_TABLE_xy] = cc_xy;
cc[Z80_TABLE_xycb] = cc_xycb;
cc[Z80_TABLE_ex] = cc_ex;
#if BIG_FLAGS_ARRAY
if( !SZHVC_add || !SZHVC_sub )
{
int oldval, newval, val;
UINT8 *padd, *padc, *psub, *psbc;
/* allocate big flag arrays once */
SZHVC_add = (UINT8 *)malloc(2*256*256);
SZHVC_sub = (UINT8 *)malloc(2*256*256);
if( !SZHVC_add || !SZHVC_sub )
{
return;
}
padd = &SZHVC_add[ 0*256];
padc = &SZHVC_add[256*256];
psub = &SZHVC_sub[ 0*256];
psbc = &SZHVC_sub[256*256];
for (oldval = 0; oldval < 256; oldval++)
{
for (newval = 0; newval < 256; newval++)
{
/* add or adc w/o carry set */
val = newval - oldval;
*padd = (newval) ? ((newval & 0x80) ? SF : 0) : ZF;
*padd |= (newval & (YF | XF)); /* undocumented flag bits 5+3 */
if( (newval & 0x0f) < (oldval & 0x0f) ) *padd |= HF;
if( newval < oldval ) *padd |= CF;
if( (val^oldval^0x80) & (val^newval) & 0x80 ) *padd |= VF;
padd++;
/* adc with carry set */
val = newval - oldval - 1;
*padc = (newval) ? ((newval & 0x80) ? SF : 0) : ZF;
*padc |= (newval & (YF | XF)); /* undocumented flag bits 5+3 */
if( (newval & 0x0f) <= (oldval & 0x0f) ) *padc |= HF;
if( newval <= oldval ) *padc |= CF;
if( (val^oldval^0x80) & (val^newval) & 0x80 ) *padc |= VF;
padc++;
/* cp, sub or sbc w/o carry set */
val = oldval - newval;
*psub = NF | ((newval) ? ((newval & 0x80) ? SF : 0) : ZF);
*psub |= (newval & (YF | XF)); /* undocumented flag bits 5+3 */
if( (newval & 0x0f) > (oldval & 0x0f) ) *psub |= HF;
if( newval > oldval ) *psub |= CF;
if( (val^oldval) & (oldval^newval) & 0x80 ) *psub |= VF;
psub++;
/* sbc with carry set */
val = oldval - newval - 1;
*psbc = NF | ((newval) ? ((newval & 0x80) ? SF : 0) : ZF);
*psbc |= (newval & (YF | XF)); /* undocumented flag bits 5+3 */
if( (newval & 0x0f) >= (oldval & 0x0f) ) *psbc |= HF;
if( newval >= oldval ) *psbc |= CF;
if( (val^oldval) & (oldval^newval) & 0x80 ) *psbc |= VF;
psbc++;
}
}
}
#endif
for (i = 0; i < 256; i++)
{
p = 0;
if( i&0x01 ) ++p;
if( i&0x02 ) ++p;
if( i&0x04 ) ++p;
if( i&0x08 ) ++p;
if( i&0x10 ) ++p;
if( i&0x20 ) ++p;
if( i&0x40 ) ++p;
if( i&0x80 ) ++p;
SZ[i] = i ? i & SF : ZF;
SZ[i] |= (i & (YF | XF)); /* undocumented flag bits 5+3 */
SZ_BIT[i] = i ? i & SF : ZF | PF;
SZ_BIT[i] |= (i & (YF | XF)); /* undocumented flag bits 5+3 */
SZP[i] = SZ[i] | ((p & 1) ? 0 : PF);
SZHV_inc[i] = SZ[i];
if( i == 0x80 ) SZHV_inc[i] |= VF;
if( (i & 0x0f) == 0x00 ) SZHV_inc[i] |= HF;
SZHV_dec[i] = SZ[i] | NF;
if( i == 0x7f ) SZHV_dec[i] |= VF;
if( (i & 0x0f) == 0x0f ) SZHV_dec[i] |= HF;
}
/* Reset registers to their initial values */
Z80.daisy = config;
Z80.irq_callback = irqcallback;
}
/****************************************************************************
* Do a reset
****************************************************************************/
void z80_reset(void)
{
/* save previous values */
void *config = (void *) Z80.daisy;
int (*irqcallback)(int) = Z80.irq_callback;
/* Reset registers to their initial values */
memset(&Z80, 0, sizeof(Z80));
Z80.daisy = config;
Z80.irq_callback = irqcallback;
IX = IY = 0xffff; /* IX and IY are FFFF after a reset! */
F = ZF; /* Zero flag is set */
PC = 0x0000;
I = 0;
R = 0;
R2 = 0;
Z80.nmi_state = CLEAR_LINE;
Z80.nmi_pending = FALSE;
Z80.irq_state = CLEAR_LINE;
Z80.after_ei = FALSE;
change_pc(PCD);
}
void z80_exit(void)
{
#if BIG_FLAGS_ARRAY
if (SZHVC_add) free(SZHVC_add);
SZHVC_add = NULL;
if (SZHVC_sub) free(SZHVC_sub);
SZHVC_sub = NULL;
#endif
}
/****************************************************************************
* Execute 'cycles' T-states. Return number of T-states really executed
****************************************************************************/
int z80_execute(int cycles)
{
z80_ICount = cycles;
/* check for NMIs on the way in; they can only be set externally */
/* via timers, and can't be dynamically enabled, so it is safe */
/* to just check here */
if (Z80.nmi_pending)
{
LOG(("Z80 #%d take NMI\n", cpu_getactivecpu()));
PRVPC = -1; /* there isn't a valid previous program counter */
LEAVE_HALT; /* Check if processor was halted */
IFF1 = 0;
PUSH( pc );
PCD = 0x0066;
change_pc(PCD);
z80_ICount -= 11;
Z80.nmi_pending = FALSE;
}
do
{
/* check for IRQs before each instruction */
if (Z80.irq_state != CLEAR_LINE && IFF1 && !Z80.after_ei)
take_interrupt();
Z80.after_ei = FALSE;
PRVPC = PCD;
R++;
EXEC_INLINE(op,ROP());
} while( z80_ICount > 0 );
return cycles - z80_ICount;
}
/****************************************************************************
* Burn 'cycles' T-states. Adjust R register for the lost time
****************************************************************************/
void z80_burn(int cycles)
{
if( cycles > 0 )
{
/* NOP takes 4 cycles per instruction */
int n = (cycles + 3) / 4;
R += n;
z80_ICount -= 4 * n;
}
}
/****************************************************************************
* Get all registers in given buffer
****************************************************************************/
void z80_get_context (void *dst)
{
if( dst )
*(Z80_Regs*)dst = Z80;
}
/****************************************************************************
* Set all registers to given values
****************************************************************************/
void z80_set_context (void *src)
{
if( src )
Z80 = *(Z80_Regs*)src;
change_pc(PCD);
}
/****************************************************************************
* Set IRQ line state
****************************************************************************/
void z80_set_irq_line(int irqline, int state)
{
if (irqline == INPUT_LINE_NMI)
{
/* mark an NMI pending on the rising edge */
if (Z80.nmi_state == CLEAR_LINE && state != CLEAR_LINE)
Z80.nmi_pending = TRUE;
Z80.nmi_state = state;
}
else
{
/* update the IRQ state via the daisy chain */
Z80.irq_state = state;
/* the main execute loop will take the interrupt */
}
}
Reference in New Issue Copy Permalink