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basic psp snd + cz80

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@280 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-10-26 20:08:13 +00:00
parent 8ab3e3c1cf
commit a4221917e1
16 changed files with 5127 additions and 62 deletions
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113
cpu/cz80/cz80macro.h Normal file
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/******************************************************************************
cz80macro.h
CZ80 ŠeŽíƒ}ƒNƒ<EFBFBD>
******************************************************************************/
#if CZ80_USE_JUMPTABLE
#define _SSOP(A,B) A##B
#define OP(A) _SSOP(OP,A)
#define OPCB(A) _SSOP(OPCB,A)
#define OPED(A) _SSOP(OPED,A)
#define OPXY(A) _SSOP(OPXY,A)
#define OPXYCB(A) _SSOP(OPXYCB,A)
#else
#define OP(A) case A
#define OPCB(A) case A
#define OPED(A) case A
#define OPXY(A) case A
#define OPXYCB(A) case A
#endif
#define USE_CYCLES(A) CPU->ICount -= (A);
#define ADD_CYCLES(A) CPU->ICount += (A);
#define RET(A) { USE_CYCLES(A) goto Cz80_Exec; }
#if CZ80_ENCRYPTED_ROM
#define SET_PC(A) \
CPU->BasePC = CPU->Fetch[(A) >> CZ80_FETCH_SFT]; \
OPBase = CPU->OPFetch[(A) >> CZ80_FETCH_SFT]; \
PC = (A) + CPU->BasePC;
#define GET_OP() (*(UINT8 *)(OPBase + PC))
#else
#define SET_PC(A) \
CPU->BasePC = CPU->Fetch[(A) >> CZ80_FETCH_SFT]; \
PC = (A) + CPU->BasePC;
#define GET_OP() (*(UINT8 *)PC)
#endif
#define READ_OP() GET_OP(); PC++
#define READ_ARG() (*(UINT8 *)PC++)
#if CZ80_LITTLE_ENDIAN
#define READ_ARG16() (*(UINT8 *)PC | (*(UINT8 *)(PC + 1) << 8)); PC += 2
#else
#define READ_ARG16() (*(UINT8 *)(PC + 1) | (*(UINT8 *)PC << 8)); PC += 2
#endif
//#ifndef BUILD_CPS1PSP
//#define READ_MEM8(A) memory_region_cpu2[(A)]
//#else
#define READ_MEM8(A) CPU->Read_Byte(A)
//#endif
#if CZ80_LITTLE_ENDIAN
#define READ_MEM16(A) (READ_MEM8(A) | (READ_MEM8((A) + 1) << 8))
#else
#define READ_MEM16(A) ((READ_MEM8(A) << 8) | READ_MEM8((A) + 1))
#endif
#define WRITE_MEM8(A, D) CPU->Write_Byte(A, D);
#if CZ80_LITTLE_ENDIAN
#define WRITE_MEM16(A, D) { WRITE_MEM8(A, D); WRITE_MEM8((A) + 1, (D) >> 8); }
#else
#define WRITE_MEM16(A, D) { WRITE_MEM8((A) + 1, D); WRITE_MEM8(A, (D) >> 8); }
#endif
#define PUSH_16(A) { UINT32 sp; zSP -= 2; sp = zSP; WRITE_MEM16(sp, A); }
#define POP_16(A) { UINT32 sp; sp = zSP; A = READ_MEM16(sp); zSP = sp + 2; }
#define IN(A) CPU->IN_Port(A)
#define OUT(A, D) CPU->OUT_Port(A, D)
#define CHECK_INT \
if (zIFF1) \
{ \
UINT32 IntVect; \
\
if (CPU->IRQState == HOLD_LINE) \
CPU->IRQState = CLEAR_LINE; \
\
CPU->HaltState = 0; \
zIFF1 = zIFF2 = 0; \
IntVect = CPU->Interrupt_Callback(CPU->IRQLine); \
\
PUSH_16(zRealPC) \
\
if (zIM == 2) \
{ \
IntVect = (IntVect & 0xff) | (zI << 8); \
PC = READ_MEM16(IntVect); \
CPU->ExtraCycles += 17; \
} \
else if (zIM == 1) \
{ \
PC = 0x38; \
CPU->ExtraCycles += 13; \
} \
else \
{ \
PC = IntVect & 0x38; \
CPU->ExtraCycles += 13; \
} \
\
SET_PC(PC) \
}