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famec hack, CPU debug in CD mode
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@292 be3aeb3a-fb24-0410-a615-afba39da0efa
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notaz
parent
9caf44b59b
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11 changed files with 279 additions and 66 deletions
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@ -2,7 +2,6 @@
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// Loosely based on Gens code.
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// (c) Copyright 2007, Grazvydas "notaz" Ignotas
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// A68K no longer supported here
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//#define __debug_io
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@ -24,17 +23,22 @@ typedef unsigned int u32;
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//#define __debug_io
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//#define __debug_io2
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#define rdprintf dprintf
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//#define rdprintf(...)
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//#define rdprintf dprintf
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#define rdprintf(...)
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//#define wrdprintf dprintf
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#define wrdprintf(...)
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#define plprintf dprintf
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//#define plprintf(...)
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#ifdef EMU_CORE_DEBUG
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extern u32 lastread_a, lastread_d[16], lastwrite_cyc_d[16];
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extern int lrp_cyc, lwp_cyc;
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#undef USE_POLL_DETECT
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#endif
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// -----------------------------------------------------------------
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// poller detection
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//#undef USE_POLL_DETECT
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#define POLL_LIMIT 16
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#define POLL_CYCLES 124
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// int m68k_poll_addr, m68k_poll_cnt;
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@ -280,7 +284,6 @@ void s68k_reg_write8(u32 a, u32 d)
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{
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//dprintf("s68k_regs w%2i: [%02x] %02x @ %06x", realsize, a, d, SekPcS68k);
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// TODO: review against Gens
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// Warning: d might have upper bits set
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switch (a) {
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case 2:
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@ -413,7 +416,6 @@ static void OtherWrite8End(u32 a, u32 d, int realsize)
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// -----------------------------------------------------------------
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// Read Rom and read Ram
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//u8 PicoReadM68k8_(u32 a);
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#ifdef _ASM_CD_MEMORY_C
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u32 PicoReadM68k8(u32 a);
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#else
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@ -465,6 +467,12 @@ static u32 PicoReadM68k8(u32 a)
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#ifdef __debug_io
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dprintf("r8 : %06x, %02x @%06x", a&0xffffff, (u8)d, SekPc);
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#endif
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#ifdef EMU_CORE_DEBUG
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if (a>=Pico.romsize) {
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lastread_a = a;
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lastread_d[lrp_cyc++&15] = d;
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}
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#endif
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return d;
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}
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@ -522,6 +530,12 @@ static u32 PicoReadM68k16(u32 a)
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#ifdef __debug_io
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dprintf("r16: %06x, %04x @%06x", a&0xffffff, d, SekPc);
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#endif
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#ifdef EMU_CORE_DEBUG
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if (a>=Pico.romsize) {
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lastread_a = a;
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lastread_d[lrp_cyc++&15] = d;
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}
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#endif
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return d;
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}
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@ -583,6 +597,12 @@ static u32 PicoReadM68k32(u32 a)
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end:
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#ifdef __debug_io
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dprintf("r32: %06x, %08x @%06x", a&0xffffff, d, SekPc);
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#endif
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#ifdef EMU_CORE_DEBUG
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if (a>=Pico.romsize) {
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lastread_a = a;
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lastread_d[lrp_cyc++&15] = d;
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}
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#endif
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return d;
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}
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@ -599,9 +619,9 @@ static void PicoWriteM68k8(u32 a,u8 d)
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#ifdef __debug_io
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dprintf("w8 : %06x, %02x @%06x", a&0xffffff, d, SekPc);
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#endif
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//if ((a&0xe0ffff)==0xe0a9ba+0x69c)
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// dprintf("w8 : %06x, %02x @%06x", a&0xffffff, d, SekPc);
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#ifdef EMU_CORE_DEBUG
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lastwrite_cyc_d[lwp_cyc++&15] = d;
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#endif
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if ((a&0xe00000)==0xe00000) { // Ram
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*(u8 *)(Pico.ram+((a^1)&0xffff)) = d;
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@ -652,7 +672,9 @@ static void PicoWriteM68k16(u32 a,u16 d)
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#ifdef __debug_io
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dprintf("w16: %06x, %04x", a&0xffffff, d);
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#endif
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// dprintf("w16: %06x, %04x @%06x", a&0xffffff, d, SekPc);
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#ifdef EMU_CORE_DEBUG
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lastwrite_cyc_d[lwp_cyc++&15] = d;
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#endif
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if ((a&0xe00000)==0xe00000) { // Ram
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*(u16 *)(Pico.ram+(a&0xfffe))=d;
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@ -716,6 +738,9 @@ static void PicoWriteM68k32(u32 a,u32 d)
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#ifdef __debug_io
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dprintf("w32: %06x, %08x", a&0xffffff, d);
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#endif
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#ifdef EMU_CORE_DEBUG
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lastwrite_cyc_d[lwp_cyc++&15] = d;
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#endif
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if ((a&0xe00000)==0xe00000)
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{
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@ -782,6 +807,9 @@ static u32 PicoReadS68k8(u32 a)
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{
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u32 d=0;
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#ifdef EMU_CORE_DEBUG
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u32 ab=a&0xfffffe;
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#endif
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a&=0xffffff;
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// prg RAM
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@ -865,6 +893,10 @@ static u32 PicoReadS68k8(u32 a)
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#ifdef __debug_io2
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dprintf("s68k r8 : %06x, %02x @%06x", a&0xffffff, (u8)d, SekPcS68k);
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#endif
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#ifdef EMU_CORE_DEBUG
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lastread_a = ab;
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lastread_d[lrp_cyc++&15] = d;
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#endif
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return d;
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}
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@ -878,6 +910,9 @@ static u32 PicoReadS68k16(u32 a)
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{
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u32 d=0;
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#ifdef EMU_CORE_DEBUG
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u32 ab=a&0xfffffe;
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#endif
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a&=0xfffffe;
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// prg RAM
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@ -958,6 +993,10 @@ static u32 PicoReadS68k16(u32 a)
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#ifdef __debug_io2
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dprintf("s68k r16: %06x, %04x @%06x", a&0xffffff, d, SekPcS68k);
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#endif
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#ifdef EMU_CORE_DEBUG
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lastread_a = ab;
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lastread_d[lrp_cyc++&15] = d;
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#endif
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return d;
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}
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@ -971,6 +1010,9 @@ static u32 PicoReadS68k32(u32 a)
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{
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u32 d=0;
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#ifdef EMU_CORE_DEBUG
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u32 ab=a&0xfffffe;
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#endif
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a&=0xfffffe;
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// prg RAM
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@ -1061,6 +1103,12 @@ static u32 PicoReadS68k32(u32 a)
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#ifdef __debug_io2
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dprintf("s68k r32: %06x, %08x @%06x", a&0xffffff, d, SekPcS68k);
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#endif
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#ifdef EMU_CORE_DEBUG
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if (ab > 0x78) { // not vectors and stuff
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lastread_a = ab;
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lastread_d[lrp_cyc++&15] = d;
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}
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#endif
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return d;
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}
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@ -1131,6 +1179,10 @@ static void PicoWriteS68k8(u32 a,u8 d)
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a&=0xffffff;
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#ifdef EMU_CORE_DEBUG
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lastwrite_cyc_d[lwp_cyc++&15] = d;
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#endif
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// prg RAM
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if (a < 0x80000) {
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u8 *pm=(u8 *)(Pico_mcd->prg_ram+(a^1));
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@ -1207,6 +1259,10 @@ static void PicoWriteS68k16(u32 a,u16 d)
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a&=0xfffffe;
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#ifdef EMU_CORE_DEBUG
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lastwrite_cyc_d[lwp_cyc++&15] = d;
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#endif
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// prg RAM
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if (a < 0x80000) {
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wrdprintf("s68k_prgram w16: [%06x] %04x @%06x", a, d, SekPcS68k);
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@ -1293,6 +1349,10 @@ static void PicoWriteS68k32(u32 a,u32 d)
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a&=0xfffffe;
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#ifdef EMU_CORE_DEBUG
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lastwrite_cyc_d[lwp_cyc++&15] = d;
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#endif
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// prg RAM
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if (a < 0x80000) {
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if (a >= (Pico_mcd->s68k_regs[2]<<8)) {
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@ -1563,7 +1623,8 @@ void PicoWriteCD32w(unsigned int a, unsigned int d) {
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}
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// these are allowed to access RAM
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unsigned int m68k_read_pcrelative_CD8 (unsigned int a) {
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unsigned int m68k_read_pcrelative_CD8 (unsigned int a)
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{
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a&=0xffffff;
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if(m68ki_cpu_p == &PicoCpuMS68k) {
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if (a < 0x80000) return *(u8 *)(Pico_mcd->prg_ram+(a^1)); // PRG Ram
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@ -1589,7 +1650,8 @@ unsigned int m68k_read_pcrelative_CD8 (unsigned int a) {
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}
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return 0;//(u8) lastread_d;
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}
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unsigned int m68k_read_pcrelative_CD16(unsigned int a) {
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unsigned int m68k_read_pcrelative_CD16(unsigned int a)
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{
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a&=0xffffff;
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if(m68ki_cpu_p == &PicoCpuMS68k) {
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if (a < 0x80000) return *(u16 *)(Pico_mcd->prg_ram+(a&~1)); // PRG Ram
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@ -1615,7 +1677,8 @@ unsigned int m68k_read_pcrelative_CD16(unsigned int a) {
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}
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return 0;
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}
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unsigned int m68k_read_pcrelative_CD32(unsigned int a) {
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unsigned int m68k_read_pcrelative_CD32(unsigned int a)
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{
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u16 *pm;
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a&=0xffffff;
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if(m68ki_cpu_p == &PicoCpuMS68k) {
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