RaySollium99/picodrive
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optimizations, fixes, hacks, psp, ...

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@295 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-11-15 23:01:20 +00:00
parent 8022f53da6
commit b542be4686
37 changed files with 928 additions and 548 deletions
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11
cpu/cz80/cz80.c
View file

@ -13,6 +13,10 @@
#include <string.h>
#include "cz80.h"
#if PICODRIVE_HACKS
#include <Pico/PicoInt.h>
#endif
#ifndef ALIGN_DATA
#define ALIGN_DATA __attribute__((aligned(4)))
#endif
@ -203,6 +207,13 @@ void Cz80_Reset(cz80_struc *CPU)
Cz80_Set_Reg(CPU, CZ80_PC, 0);
}
/* */
#if PICODRIVE_HACKS
static inline unsigned char picodrive_read(unsigned short a)
{
return (a < 0x4000) ? Pico.zram[a&0x1fff] : z80_read(a);
}
#endif
/*--------------------------------------------------------
CPUŽÀ<EFBFBD>s

1
cpu/cz80/cz80.h
View file

@ -52,6 +52,7 @@ extern "C" {
#define CZ80_FETCH_SFT (16 - CZ80_FETCH_BITS)
#define CZ80_FETCH_BANK (1 << CZ80_FETCH_BITS)
#define PICODRIVE_HACKS 1
#define CZ80_LITTLE_ENDIAN 1
#define CZ80_USE_JUMPTABLE 1
#define CZ80_BIG_FLAGS_ARRAY 1

13
cpu/cz80/cz80macro.h
View file

@ -57,7 +57,11 @@
//#ifndef BUILD_CPS1PSP
//#define READ_MEM8(A) memory_region_cpu2[(A)]
//#else
#if PICODRIVE_HACKS
#define READ_MEM8(A) picodrive_read(A)
#else
#define READ_MEM8(A) CPU->Read_Byte(A)
#endif
//#endif
#if CZ80_LITTLE_ENDIAN
#define READ_MEM16(A) (READ_MEM8(A) | (READ_MEM8((A) + 1) << 8))
@ -65,7 +69,16 @@
#define READ_MEM16(A) ((READ_MEM8(A) << 8) | READ_MEM8((A) + 1))
#endif
#if PICODRIVE_HACKS
#define WRITE_MEM8(A, D) { \
unsigned short a = A; \
unsigned char d = D; \
if (a < 0x4000) Pico.zram[a&0x1fff] = d; \
else z80_write(a, d); \
}
#else
#define WRITE_MEM8(A, D) CPU->Write_Byte(A, D);
#endif
#if CZ80_LITTLE_ENDIAN
#define WRITE_MEM16(A, D) { WRITE_MEM8(A, D); WRITE_MEM8((A) + 1, (D) >> 8); }
#else