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famec hack, CPU debug in CD mode

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@292 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-11-10 15:49:07 +00:00
parent 9caf44b59b
commit b5e5172d04
11 changed files with 279 additions and 66 deletions
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43
Pico/Memory.c
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@ -7,7 +7,7 @@
// For commercial use, separate licencing terms must be obtained.
#define __debug_io
//#define __debug_io
#include "PicoInt.h"
@ -323,7 +323,7 @@ PICO_INTERNAL_ASM u32 PicoRead8(u32 a)
#ifndef EMU_CORE_DEBUG
// sram
if(a >= SRam.start && a <= SRam.end && (Pico.m.sram_reg&5)) {
if (a >= SRam.start && a <= SRam.end && (Pico.m.sram_reg&5)) {
d = SRAMRead(a);
elprintf(EL_SRAMIO, "sram r8 [%06x] %02x @ %06x", a, d, SekPc);
goto end;
@ -341,7 +341,7 @@ end:
dprintf("r8 : %06x, %02x @%06x", a&0xffffff, (u8)d, SekPc);
#endif
#ifdef EMU_CORE_DEBUG
if(a>=Pico.romsize/*&&(ppop&0x3f)!=0x3a&&(ppop&0x3f)!=0x3b*/) {
if (a>=Pico.romsize) {
lastread_a = a;
lastread_d[lrp_cyc++&15] = (u8)d;
}
@ -359,7 +359,7 @@ PICO_INTERNAL_ASM u32 PicoRead16(u32 a)
#ifndef EMU_CORE_DEBUG
// sram
if(a >= SRam.start && a <= SRam.end && (Pico.m.sram_reg&5)) {
if (a >= SRam.start && a <= SRam.end && (Pico.m.sram_reg&5)) {
d = SRAMRead(a);
d |= d<<8;
elprintf(EL_SRAMIO, "sram r16 [%06x] %04x @ %06x", a, d, SekPc);
@ -377,7 +377,7 @@ end:
dprintf("r16: %06x, %04x @%06x", a&0xffffff, d, SekPc);
#endif
#ifdef EMU_CORE_DEBUG
if(a>=Pico.romsize/*&&(ppop&0x3f)!=0x3a&&(ppop&0x3f)!=0x3b*/) {
if (a>=Pico.romsize) {
lastread_a = a;
lastread_d[lrp_cyc++&15] = d;
}
@ -411,7 +411,7 @@ end:
dprintf("r32: %06x, %08x @%06x", a&0xffffff, d, SekPc);
#endif
#ifdef EMU_CORE_DEBUG
if(a>=Pico.romsize/*&&(ppop&0x3f)!=0x3a&&(ppop&0x3f)!=0x3b*/) {
if (a>=Pico.romsize) {
lastread_a = a;
lastread_d[lrp_cyc++&15] = d;
}
@ -525,33 +525,36 @@ unsigned int m68k_read_pcrelative_CD16(unsigned int a);
unsigned int m68k_read_pcrelative_CD32(unsigned int a);
// these are allowed to access RAM
static unsigned int m68k_read_8 (unsigned int a, int do_fake) {
static unsigned int m68k_read_8 (unsigned int a, int do_fake)
{
a&=0xffffff;
if(PicoMCD&1) return m68k_read_pcrelative_CD8(a);
if(a<Pico.romsize) return *(u8 *)(Pico.rom+(a^1)); // Rom
if(a<Pico.romsize && m68ki_cpu_p==&PicoCpuMM68k) return *(u8 *)(Pico.rom+(a^1)); // Rom
#ifdef EMU_CORE_DEBUG
if(do_fake&&((ppop&0x3f)==0x3a||(ppop&0x3f)==0x3b)) return lastread_d[lrp_mus++&15];
#endif
if(PicoMCD&1) return m68k_read_pcrelative_CD8(a);
if((a&0xe00000)==0xe00000) return *(u8 *)(Pico.ram+((a^1)&0xffff)); // Ram
return 0;
}
static unsigned int m68k_read_16(unsigned int a, int do_fake) {
static unsigned int m68k_read_16(unsigned int a, int do_fake)
{
a&=0xffffff;
if(PicoMCD&1) return m68k_read_pcrelative_CD16(a);
if(a<Pico.romsize) return *(u16 *)(Pico.rom+(a&~1)); // Rom
if(a<Pico.romsize && m68ki_cpu_p==&PicoCpuMM68k) return *(u16 *)(Pico.rom+(a&~1)); // Rom
#ifdef EMU_CORE_DEBUG
if(do_fake&&((ppop&0x3f)==0x3a||(ppop&0x3f)==0x3b)) return lastread_d[lrp_mus++&15];
#endif
if(PicoMCD&1) return m68k_read_pcrelative_CD16(a);
if((a&0xe00000)==0xe00000) return *(u16 *)(Pico.ram+(a&0xfffe)); // Ram
return 0;
}
static unsigned int m68k_read_32(unsigned int a, int do_fake) {
static unsigned int m68k_read_32(unsigned int a, int do_fake)
{
a&=0xffffff;
if(PicoMCD&1) return m68k_read_pcrelative_CD32(a);
if(a<Pico.romsize) { u16 *pm=(u16 *)(Pico.rom+(a&~1)); return (pm[0]<<16)|pm[1]; }
if(a<Pico.romsize && m68ki_cpu_p==&PicoCpuMM68k) { u16 *pm=(u16 *)(Pico.rom+(a&~1)); return (pm[0]<<16)|pm[1]; }
#ifdef EMU_CORE_DEBUG
if(do_fake&&((ppop&0x3f)==0x3a||(ppop&0x3f)==0x3b)) return lastread_d[lrp_mus++&15];
#endif
if(PicoMCD&1) return m68k_read_pcrelative_CD32(a);
if((a&0xe00000)==0xe00000) { u16 *pm=(u16 *)(Pico.ram+(a&0xfffe)); return (pm[0]<<16)|pm[1]; } // Ram
return 0;
}
@ -570,7 +573,8 @@ unsigned int m68k_read_disassembler_32(unsigned int a) { return m68k_read_32(a,
unsigned int m68k_read_memory_8(unsigned int a)
{
u8 d;
if(a<Pico.romsize) d = *(u8 *) (Pico.rom+(a^1));
if (a<Pico.romsize && m68ki_cpu_p==&PicoCpuMM68k)
d = *(u8 *) (Pico.rom+(a^1));
else d = (u8) lastread_d[lrp_mus++&15];
#ifdef __debug_io
dprintf("r8_mu : %06x, %02x @%06x", a&0xffffff, d, SekPc);
@ -580,7 +584,8 @@ unsigned int m68k_read_memory_8(unsigned int a)
unsigned int m68k_read_memory_16(unsigned int a)
{
u16 d;
if(a<Pico.romsize) d = *(u16 *)(Pico.rom+(a&~1));
if (a<Pico.romsize && m68ki_cpu_p==&PicoCpuMM68k)
d = *(u16 *)(Pico.rom+(a&~1));
else d = (u16) lastread_d[lrp_mus++&15];
#ifdef __debug_io
dprintf("r16_mu: %06x, %04x @%06x", a&0xffffff, d, SekPc);
@ -590,7 +595,9 @@ unsigned int m68k_read_memory_16(unsigned int a)
unsigned int m68k_read_memory_32(unsigned int a)
{
u32 d;
if(a<Pico.romsize) {u16 *pm=(u16 *)(Pico.rom+(a&~1));d=(pm[0]<<16)|pm[1];}
if (a<Pico.romsize && m68ki_cpu_p==&PicoCpuMM68k)
{ u16 *pm=(u16 *)(Pico.rom+(a&~1));d=(pm[0]<<16)|pm[1]; }
else if (a <= 0x78) d = m68k_read_32(a, 0);
else d = lastread_d[lrp_mus++&15];
#ifdef __debug_io
dprintf("r32_mu: %06x, %08x @%06x", a&0xffffff, d, SekPc);