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- /*
- * debug stuff
- * (C) notaz, 2006-2008
- *
- * This work is licensed under the terms of MAME license.
- * See COPYING file in the top-level directory.
- */
- #include "pico_int.h"
- static unsigned int pppc, ops=0;
- extern unsigned int lastread_a, lastread_d[16], lastwrite_cyc_d[16], lastwrite_mus_d[16];
- extern int lrp_cyc, lrp_mus, lwp_cyc, lwp_mus;
- unsigned int old_regs[16], old_sr, ppop, have_illegal = 0;
- int dbg_irq_level = 0, dbg_irq_level_sub = 0;
- #undef dprintf
- #define dprintf(f,...) printf("%05i:%03i: " f "\n",Pico.m.frame_count,Pico.m.scanline,##__VA_ARGS__)
- #if defined(EMU_C68K)
- static struct Cyclone *currentC68k = NULL;
- #define other_set_sub(s) currentC68k=(s)?&PicoCpuCS68k:&PicoCpuCM68k;
- #define other_get_sr() CycloneGetSr(currentC68k)
- #define other_dar(i) currentC68k->d[i]
- #define other_osp currentC68k->osp
- #define other_get_irq() currentC68k->irq
- #define other_set_irq(i) currentC68k->irq=i
- #define other_is_stopped() (currentC68k->state_flags&1)
- #define other_is_tracing() ((currentC68k->state_flags&2)?1:0)
- #elif defined(EMU_F68K)
- static struct M68K_CONTEXT *g_m68kcontext;
- #define other_set_sub(s) g_m68kcontext=(s)?&PicoCpuFS68k:&PicoCpuFM68k;
- #define other_get_sr() g_m68kcontext->sr
- #define other_dar(i) ((unsigned int*)g_m68kcontext->dreg)[i]
- #define other_osp g_m68kcontext->asp
- #define other_get_irq() g_m68kcontext->interrupts[0]
- #define other_set_irq(irq) g_m68kcontext->interrupts[0]=irq
- #define other_is_stopped() ((g_m68kcontext->execinfo&FM68K_HALTED)?1:0)
- #define other_is_tracing() ((g_m68kcontext->execinfo&FM68K_EMULATE_TRACE)?1:0)
- #else
- #error other core missing, don't compile this file
- #endif
- static int otherRun(void)
- {
- #if defined(EMU_C68K)
- currentC68k->cycles=1;
- CycloneRun(currentC68k);
- return 1-currentC68k->cycles;
- #elif defined(EMU_F68K)
- return fm68k_emulate(g_m68kcontext, 1, 0);
- #endif
- }
- //static
- void dumpPCandExit(int is_sub)
- {
- char buff[128];
- int i;
- m68k_disassemble(buff, pppc, M68K_CPU_TYPE_68000);
- dprintf("PC: %06x: %04x: %s", pppc, ppop, buff);
- dprintf(" this | prev");
- for(i=0; i < 8; i++)
- dprintf("d%i=%08x, a%i=%08x | d%i=%08x, a%i=%08x", i, other_dar(i), i, other_dar(i+8), i, old_regs[i], i, old_regs[i+8]);
- dprintf("SR: %04x | %04x (??s? 0iii 000x nzvc)", other_get_sr(), old_sr);
- dprintf("last_read: %08x @ %06x", lastread_d[--lrp_cyc&15], lastread_a);
- dprintf("ops done: %i, is_sub: %i", ops, is_sub);
- exit(1);
- }
- int CM_compareRun(int cyc, int is_sub)
- {
- char *str;
- int cyc_done=0, cyc_other, cyc_musashi, *irq_level, err=0;
- unsigned int i, pc, mu_sr;
- m68ki_cpu_p=is_sub?&PicoCpuMS68k:&PicoCpuMM68k;
- other_set_sub(is_sub);
- lrp_cyc = lrp_mus = 0;
- while (cyc_done < cyc)
- {
- if (have_illegal && m68k_read_disassembler_16(m68ki_cpu.pc) != 0x4e73) // not rte
- {
- have_illegal = 0;
- m68ki_cpu.pc += 2;
- #ifdef EMU_C68K
- currentC68k->pc=currentC68k->checkpc(currentC68k->pc + 2);
- #endif
- }
- // hacks for test_misc2
- if (m68ki_cpu.pc == 0x0002e0 && m68k_read_disassembler_16(m68ki_cpu.pc) == 0x4e73)
- {
- // get out of "priviledge violation" loop
- have_illegal = 1;
- //m68ki_cpu.s_flag = SFLAG_SET;
- //currentC68k->srh|=0x20;
- }
- pppc = is_sub ? SekPcS68k : SekPc;
- ppop = m68k_read_disassembler_16(pppc);
- memcpy(old_regs, &other_dar(0), 4*16);
- old_sr = other_get_sr();
- #if 0
- {
- char buff[128];
- dprintf("---");
- m68k_disassemble(buff, pppc, M68K_CPU_TYPE_68000);
- dprintf("PC: %06x: %04x: %s", pppc, ppop, buff);
- //dprintf("A7: %08x", currentC68k->a[7]);
- }
- #endif
- irq_level = is_sub ? &dbg_irq_level_sub : &dbg_irq_level;
- if (*irq_level)
- {
- other_set_irq(*irq_level);
- m68k_set_irq(*irq_level);
- *irq_level=0;
- }
- cyc_other=otherRun();
- // Musashi takes irq even if it hasn't got cycles left, let othercpu do it too
- if (other_get_irq() && other_get_irq() > ((other_get_sr()>>8)&7))
- cyc_other+=otherRun();
- cyc_musashi=m68k_execute(1);
- if (cyc_other != cyc_musashi) {
- dprintf("cycles: %i vs %i", cyc_other, cyc_musashi);
- err=1;
- }
- if (lrp_cyc != lrp_mus) {
- dprintf("lrp: %i vs %i", lrp_cyc&15, lrp_mus&15);
- err=1;
- }
- if (lwp_cyc != lwp_mus) {
- dprintf("lwp: %i vs %i", lwp_cyc&15, lwp_mus&15);
- err=1;
- }
- for (i=0; i < 16; i++) {
- if (lastwrite_cyc_d[i] != lastwrite_mus_d[i]) {
- dprintf("lastwrite: [%i]= %08x vs %08x", i, lastwrite_cyc_d[i], lastwrite_mus_d[i]);
- err=1;
- break;
- }
- }
- // compare PC
- pc = is_sub ? SekPcS68k : SekPc;
- m68ki_cpu.pc&=~1;
- if (pc != m68ki_cpu.pc) {
- dprintf("PC: %06x vs %06x", pc, m68ki_cpu.pc);
- err=1;
- }
- #if 0
- if( SekPc > Pico.romsize || SekPc < 0x200 ) {
- dprintf("PC out of bounds: %06x", SekPc);
- err=1;
- }
- #endif
- // compare regs
- for (i=0; i < 16; i++) {
- if (other_dar(i) != m68ki_cpu.dar[i]) {
- str = (i < 8) ? "d" : "a";
- dprintf("reg: %s%i: %08x vs %08x", str, i&7, other_dar(i), m68ki_cpu.dar[i]);
- err=1;
- }
- }
- // SR
- if (other_get_sr() != (mu_sr = m68k_get_reg(NULL, M68K_REG_SR))) {
- dprintf("SR: %04x vs %04x (??s? 0iii 000x nzvc)", other_get_sr(), mu_sr);
- err=1;
- }
- // IRQl
- if (other_get_irq() != (m68ki_cpu.int_level>>8)) {
- dprintf("IRQ: %i vs %i", other_get_irq(), (m68ki_cpu.int_level>>8));
- err=1;
- }
- // OSP/USP
- if (other_osp != m68ki_cpu.sp[((mu_sr>>11)&4)^4]) {
- dprintf("OSP: %06x vs %06x", other_osp, m68ki_cpu.sp[((mu_sr>>11)&4)^4]);
- err=1;
- }
- // stopped
- if ((other_is_stopped() && !m68ki_cpu.stopped) || (!other_is_stopped() && m68ki_cpu.stopped)) {
- dprintf("stopped: %i vs %i", other_is_stopped(), m68ki_cpu.stopped);
- err=1;
- }
- // tracing
- if((other_is_tracing() && !m68ki_tracing) || (!other_is_tracing() && m68ki_tracing)) {
- dprintf("tracing: %i vs %i", other_is_tracing(), m68ki_tracing);
- err=1;
- }
- if(err) dumpPCandExit(is_sub);
- #if 0
- if (m68ki_cpu.dar[15] < 0x00ff0000 || m68ki_cpu.dar[15] >= 0x01000000)
- {
- other_dar(15) = m68ki_cpu.dar[15] = 0xff8000;
- }
- #endif
- #if 0
- m68k_set_reg(M68K_REG_SR, ((mu_sr-1)&~0x2000)|(mu_sr&0x2000)); // broken
- CycloneSetSr(currentC68k, ((mu_sr-1)&~0x2000)|(mu_sr&0x2000));
- currentC68k->stopped = m68ki_cpu.stopped = 0;
- if(SekPc > 0x400 && (currentC68k->a[7] < 0xff0000 || currentC68k->a[7] > 0xffffff))
- currentC68k->a[7] = m68ki_cpu.dar[15] = 0xff8000;
- #endif
- cyc_done += cyc_other;
- ops++;
- }
- return cyc_done;
- }
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