X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=fceu.git;a=blobdiff_plain;f=ncpu_debug.c;h=ce1b3cc082c35d50fa71fee972d0c149e1104444;hp=864cae3961da930ccccbb893943a778c1e51ac52;hb=8fa5eb3371d902b8d58dba6e6bf62726d7ed8dbc;hpb=af32b6c2f0ed2f1a4582c3e8d7ac704b9c61fa4c diff --git a/ncpu_debug.c b/ncpu_debug.c index 864cae3..ce1b3cc 100644 --- a/ncpu_debug.c +++ b/ncpu_debug.c @@ -8,48 +8,59 @@ // asm core state extern uint32 nes_registers[0x10]; extern uint32 pc_base; -uint32 PC_prev = 0; +extern uint8 nes_internal_ram[0x800]; +extern uint32 timestamp_a; +uint32 PC_prev = 0xcccccc, OP_prev = 0xcccccc; +int32 g_cnt = 0; +static int pending_add_cycles = 0, pending_rebase = 0, pending_irq = 0; + +uint8 dreads[4]; +uint32 dwrites_c[2], dwrites_a[2]; +int dread_count_c, dread_count_a, dwrite_count_c, dwrite_count_a; +int mapirq_cyc_c, mapirq_cyc_a; static void leave(void) { - printf("A: %02x, X: %02x, Y: %02x, S: %02x\n", X.A, X.X, X.Y, X.S); - printf("PC = %04lx, OP=%02X\n", PC_prev, (PC_prev < 0x2000) ? RAM[PC_prev&0x7ff] : ARead[PC_prev](PC_prev)); + printf("\nA: %02x, X: %02x, Y: %02x, S: %02x\n", X.A, X.X, X.Y, X.S); + printf("PC = %04lx, OP=%02lX\n", PC_prev, OP_prev); + printf("rest = %08lx\n", nes_registers[4]); exit(1); } static void compare_state(void) { uint8 nes_flags; + int i, fail = 0; if ((nes_registers[0] >> 24) != X.A) { printf("A: %02lx vs %02x\n", nes_registers[0] >> 24, X.A); - leave(); + fail = 1; } if ((nes_registers[1] & 0xff) != X.X) { printf("X: %02lx vs %02x\n", nes_registers[1] & 0xff, X.X); - leave(); + fail = 1; } if ((nes_registers[2] & 0xff) != X.Y) { printf("Y: %02lx vs %02x\n", nes_registers[2] & 0xff, X.Y); - leave(); + fail = 1; } if (nes_registers[3] - pc_base != X.PC) { printf("PC: %04lx vs %04x\n", nes_registers[3] - pc_base, X.PC); - leave(); + fail = 1; } if ((nes_registers[4] >> 24) != X.S) { printf("S: %02lx vs %02x\n", nes_registers[4] >> 24, X.S); - leave(); + fail = 1; } if (((nes_registers[4]>>8)&0xff) != X.IRQlow) { printf("IRQlow: %02lx vs %02x\n", ((nes_registers[4]>>8)&0xff), X.IRQlow); - leave(); + fail = 1; } // NVUB DIZC @@ -58,24 +69,68 @@ static void compare_state(void) if (!(nes_registers[5]&0x000000ff)) nes_flags |= 0x02; // Z // nes_flags |= 0x20; // U, not set in C core (set only when pushing) - if (nes_flags != X.P) { - printf("flags: %02x vs %02x\n", nes_flags, X.P); - leave(); + if (nes_flags != (X.P&~0x20)) { + printf("flags: %02x vs %02x\n", nes_flags, (X.P&~0x20)); + fail = 1; + } + + if (((int32)nes_registers[7] >> 16) != X.count) { + printf("cycles: %li vs %li\n", (int32)nes_registers[7] >> 16, X.count); + fail = 1; } - if ((int32)nes_registers[7] != X.count) { - printf("cycles: %li vs %li\n", (int32)nes_registers[7], X.count); - leave(); + if (dread_count_a != dread_count_c) { + printf("dread_count: %i vs %i\n", dread_count_a, dread_count_c); + fail = 1; } + + if (dwrite_count_a != dwrite_count_c) { + printf("dwrite_count: %i vs %i\n", dwrite_count_a, dwrite_count_c); + fail = 1; + } + + for (i = dwrite_count_a - 1; !fail && i >= 0; i--) + if (dwrites_a[i] != dwrites_c[i]) { + printf("dwrites[%i]: %06lx vs %06lx\n", dwrite_count_a, dwrites_a[i], dwrites_c[i]); + fail = 1; + } + + if (mapirq_cyc_a != mapirq_cyc_c) { + printf("mapirq_cyc: %i vs %i\n", mapirq_cyc_a, mapirq_cyc_c); + fail = 1; + } + + if (timestamp_a != timestamp) { + printf("timestamp: %lu vs %lu\n", timestamp_a, timestamp); + fail = 1; + } + + if (fail) leave(); } +#if 1 +static void compare_ram(void) +{ + int i, fail = 0; + for (i = 0; i < 0x800/4; i++) + { + if (((int *)nes_internal_ram)[i] != ((int32 *)RAM)[i]) { + int u; + fail = 1; + for (u = i*4; u < i*4+4; u++) + if (nes_internal_ram[u] != RAM[u]) + printf("RAM[%03x]: %02x vs %02x\n", u, nes_internal_ram[u], RAM[u]); + } + } + + if (fail) leave(); +} +#endif void TriggerIRQ_d(void) { printf("-- irq\n"); - TriggerIRQ_c(); - TriggerIRQ_a(); - compare_state(); + pending_irq |= 0x100; } void TriggerNMI_d(void) @@ -92,21 +147,55 @@ void TriggerNMINSF_d(void) void X6502_Run_d(int32 c) { - int32 cycles = c << 4; /* *16 */ \ - if (PAL) cycles -= c; /* *15 */ \ + int32 cycles = c << 4; /* *16 */ + if (PAL) cycles -= c; /* *15 */ - printf("-- run(%i)\n", (int)c); + //printf("-- %06i: run(%i)\n", (int)g_cnt, (int)c); + g_cnt += cycles; - while (cycles > 0) + if (c > 200) + compare_ram(); + + while (g_cnt > 0) { - PC_prev = X.PC; - nes_registers[7]=1; + if (pending_irq) { + if (pending_irq & 0x100) { + TriggerIRQ_c(); + TriggerIRQ_a(); + } + if (pending_irq & 0xff) { + TriggerIRQ_c(); + TriggerIRQ_a(); + X6502_IRQBegin_c(pending_irq & 0xff); + X6502_IRQBegin_a(pending_irq & 0xff); + } + pending_irq = 0; + } + + nes_registers[7]=1<<16; X.count=1; + + dread_count_c = dread_count_a = dwrite_count_c = dwrite_count_a = 0; + mapirq_cyc_a = mapirq_cyc_c = 0; + timestamp_a = timestamp; + X6502_Run_c(); + X6502_Run_a(); + compare_state(); - cycles -= 1 - X.count; + g_cnt -= 1 - X.count; + if (pending_add_cycles) { + g_cnt -= pending_add_cycles*48; + pending_add_cycles = 0; + } + if (pending_rebase) { + X6502_Rebase_a(); + pending_rebase = 0; + } } + + //printf("-- run_end\n"); } void X6502_Reset_d(void) @@ -121,6 +210,9 @@ void X6502_Reset_d(void) void X6502_Power_d(void) { printf("-- power\n"); + if (nes_internal_ram == RAM) printf("nes_internal_ram == RAM!!\n"); + dread_count_c = dread_count_a = dwrite_count_c = dwrite_count_a = 0; + mapirq_cyc_c = mapirq_cyc_a = 0; X6502_Power_c(); X6502_Power_a(); @@ -129,10 +221,13 @@ void X6502_Power_d(void) void X6502_AddCycles_d(int x) { - printf("-- AddCycles(%i)\n", x); + printf("-- AddCycles(%i|%i)\n", x, x*48); - X6502_AddCycles_c(x); - X6502_AddCycles_a(x); + pending_add_cycles = x; // *48; +// printf("can't use this in debug\n"); +// exit(1); + //X6502_AddCycles_c(x); + //X6502_AddCycles_a(x); //compare_state(); } @@ -140,8 +235,9 @@ void X6502_IRQBegin_d(int w) { printf("-- IRQBegin(%02x)\n", w); - X6502_IRQBegin_c(w); - X6502_IRQBegin_a(w); + // X6502_IRQBegin_c(w); + // X6502_IRQBegin_a(w); + pending_irq |= w; } void X6502_IRQEnd_d(int w) @@ -153,4 +249,9 @@ void X6502_IRQEnd_d(int w) } +void X6502_Rebase_d(void) +{ + pending_rebase = 1; +} +