9 extern uint32 nes_registers[0x10];
10 extern uint32 pc_base;
11 extern uint8 nes_internal_ram[0x800];
12 extern uint32 timestamp_a;
13 uint32 PC_prev = 0xcccccc, OP_prev = 0xcccccc;
16 static int pending_add_cycles = 0, pending_rebase = 0, pending_irq = 0;
19 uint32 dwrites_c[2], dwrites_a[2];
20 int dread_count_c, dread_count_a, dwrite_count_c, dwrite_count_a;
21 int mapirq_cyc_c, mapirq_cyc_a;
23 static void leave(void)
25 printf("\nA: %02x, X: %02x, Y: %02x, S: %02x\n", X.A, X.X, X.Y, X.S);
26 printf("PC = %04lx, OP=%02lX\n", PC_prev, OP_prev);
27 printf("rest = %08lx\n", nes_registers[4]);
31 static void compare_state(void)
36 if ((nes_registers[0] >> 24) != X.A) {
37 printf("A: %02lx vs %02x\n", nes_registers[0] >> 24, X.A);
41 if ((nes_registers[1] & 0xff) != X.X) {
42 printf("X: %02lx vs %02x\n", nes_registers[1] & 0xff, X.X);
46 if ((nes_registers[2] & 0xff) != X.Y) {
47 printf("Y: %02lx vs %02x\n", nes_registers[2] & 0xff, X.Y);
51 if (nes_registers[3] - pc_base != X.PC) {
52 printf("PC: %04lx vs %04x\n", nes_registers[3] - pc_base, X.PC);
56 if ((nes_registers[4] >> 24) != X.S) {
57 printf("S: %02lx vs %02x\n", nes_registers[4] >> 24, X.S);
61 if (((nes_registers[4]>>8)&0xff) != X.IRQlow) {
62 printf("IRQlow: %02lx vs %02x\n", ((nes_registers[4]>>8)&0xff), X.IRQlow);
67 nes_flags = nes_registers[4] & 0x5d;
68 if ( nes_registers[5]&0x80000000) nes_flags |= 0x80; // N
69 if (!(nes_registers[5]&0x000000ff)) nes_flags |= 0x02; // Z
70 // nes_flags |= 0x20; // U, not set in C core (set only when pushing)
72 if (nes_flags != (X.P&~0x20)) {
73 printf("flags: %02x vs %02x\n", nes_flags, (X.P&~0x20));
77 if (((int32)nes_registers[7] >> 16) != X.count) {
78 printf("cycles: %li vs %li\n", (int32)nes_registers[7] >> 16, X.count);
82 if (dread_count_a != dread_count_c) {
83 printf("dread_count: %i vs %i\n", dread_count_a, dread_count_c);
87 if (dwrite_count_a != dwrite_count_c) {
88 printf("dwrite_count: %i vs %i\n", dwrite_count_a, dwrite_count_c);
92 for (i = dwrite_count_a - 1; !fail && i >= 0; i--)
93 if (dwrites_a[i] != dwrites_c[i]) {
94 printf("dwrites[%i]: %06lx vs %06lx\n", dwrite_count_a, dwrites_a[i], dwrites_c[i]);
98 if (mapirq_cyc_a != mapirq_cyc_c) {
99 printf("mapirq_cyc: %i vs %i\n", mapirq_cyc_a, mapirq_cyc_c);
103 if (timestamp_a != timestamp) {
104 printf("timestamp: %lu vs %lu\n", timestamp_a, timestamp);
112 static void compare_ram(void)
115 for (i = 0; i < 0x800/4; i++)
117 if (((int *)nes_internal_ram)[i] != ((int32 *)RAM)[i]) {
120 for (u = i*4; u < i*4+4; u++)
121 if (nes_internal_ram[u] != RAM[u])
122 printf("RAM[%03x]: %02x vs %02x\n", u, nes_internal_ram[u], RAM[u]);
130 void TriggerIRQ_d(void)
133 pending_irq |= 0x100;
136 void TriggerNMI_d(void)
144 void TriggerNMINSF_d(void)
148 void X6502_Run_d(int32 c)
150 int32 cycles = c << 4; /* *16 */
151 if (PAL) cycles -= c; /* *15 */
153 //printf("-- %06i: run(%i)\n", (int)g_cnt, (int)c);
162 if (pending_irq & 0x100) {
166 if (pending_irq & 0xff) {
169 X6502_IRQBegin_c(pending_irq & 0xff);
170 X6502_IRQBegin_a(pending_irq & 0xff);
175 nes_registers[7]=1<<16;
178 dread_count_c = dread_count_a = dwrite_count_c = dwrite_count_a = 0;
179 mapirq_cyc_a = mapirq_cyc_c = 0;
180 timestamp_a = timestamp;
187 g_cnt -= 1 - X.count;
188 if (pending_add_cycles) {
189 g_cnt -= pending_add_cycles*48;
190 pending_add_cycles = 0;
192 if (pending_rebase) {
198 //printf("-- run_end\n");
201 void X6502_Reset_d(void)
203 printf("-- reset\n");
210 void X6502_Power_d(void)
212 printf("-- power\n");
213 if (nes_internal_ram == RAM) printf("nes_internal_ram == RAM!!\n");
214 dread_count_c = dread_count_a = dwrite_count_c = dwrite_count_a = 0;
215 mapirq_cyc_c = mapirq_cyc_a = 0;
222 void X6502_AddCycles_d(int x)
224 printf("-- AddCycles(%i|%i)\n", x, x*48);
226 pending_add_cycles = x; // *48;
227 // printf("can't use this in debug\n");
229 //X6502_AddCycles_c(x);
230 //X6502_AddCycles_a(x);
234 void X6502_IRQBegin_d(int w)
236 printf("-- IRQBegin(%02x)\n", w);
238 // X6502_IRQBegin_c(w);
239 // X6502_IRQBegin_a(w);
243 void X6502_IRQEnd_d(int w)
245 printf("-- IRQEnd(%02x)\n", w);
252 void X6502_Rebase_d(void)