9 extern uint32 nes_registers[0x10];
10 extern uint32 pc_base;
11 extern uint8 nes_internal_ram[0x800];
12 uint32 PC_prev = 0xcccccc, OP_prev = 0xcccccc;
15 static int pending_add_cycles = 0, pending_rebase = 0, pending_irq = 0;
18 uint32 dwrites_c[2], dwrites_a[2];
19 int dread_count_c, dread_count_a, dwrite_count_c, dwrite_count_a;
21 static void leave(void)
23 printf("\nA: %02x, X: %02x, Y: %02x, S: %02x\n", X.A, X.X, X.Y, X.S);
24 printf("PC = %04lx, OP=%02lX\n", PC_prev, OP_prev);
28 static void compare_state(void)
33 if ((nes_registers[0] >> 24) != X.A) {
34 printf("A: %02lx vs %02x\n", nes_registers[0] >> 24, X.A);
38 if ((nes_registers[1] & 0xff) != X.X) {
39 printf("X: %02lx vs %02x\n", nes_registers[1] & 0xff, X.X);
43 if ((nes_registers[2] & 0xff) != X.Y) {
44 printf("Y: %02lx vs %02x\n", nes_registers[2] & 0xff, X.Y);
48 if (nes_registers[3] - pc_base != X.PC) {
49 printf("PC: %04lx vs %04x\n", nes_registers[3] - pc_base, X.PC);
53 if ((nes_registers[4] >> 24) != X.S) {
54 printf("S: %02lx vs %02x\n", nes_registers[4] >> 24, X.S);
58 if (((nes_registers[4]>>8)&0xff) != X.IRQlow) {
59 printf("IRQlow: %02lx vs %02x\n", ((nes_registers[4]>>8)&0xff), X.IRQlow);
64 nes_flags = nes_registers[4] & 0x5d;
65 if ( nes_registers[5]&0x80000000) nes_flags |= 0x80; // N
66 if (!(nes_registers[5]&0x000000ff)) nes_flags |= 0x02; // Z
67 // nes_flags |= 0x20; // U, not set in C core (set only when pushing)
69 if (nes_flags != (X.P&~0x20)) {
70 printf("flags: %02x vs %02x\n", nes_flags, (X.P&~0x20));
74 if ((int32)nes_registers[7] != X.count) {
75 printf("cycles: %li vs %li\n", (int32)nes_registers[7], X.count);
79 if (dread_count_a != dread_count_c) {
80 printf("dread_count: %i vs %i\n", dread_count_a, dread_count_c);
84 if (dwrite_count_a != dwrite_count_c) {
85 printf("dwrite_count: %i vs %i\n", dwrite_count_a, dwrite_count_c);
89 for (i = dwrite_count_a - 1; !fail && i >= 0; i--)
90 if (dwrites_a[i] != dwrites_c[i]) {
91 printf("dwrites[%i]: %06lx vs %06lx\n", dwrite_count_a, dwrites_a[i], dwrites_c[i]);
99 static void compare_ram(void)
102 for (i = 0; i < 0x800/4; i++)
104 if (((int *)nes_internal_ram)[i] != ((int32 *)RAM)[i]) {
107 for (u = i*4; u < i*4+4; u++)
108 if (nes_internal_ram[u] != RAM[u])
109 printf("RAM[%03x]: %02x vs %02x\n", u, nes_internal_ram[u], RAM[u]);
117 void TriggerIRQ_d(void)
120 pending_irq |= 0x100;
123 void TriggerNMI_d(void)
131 void TriggerNMINSF_d(void)
135 void X6502_Run_d(int32 c)
137 int32 cycles = c << 4; /* *16 */
138 if (PAL) cycles -= c; /* *15 */
140 //printf("-- %06i: run(%i)\n", (int)g_cnt, (int)c);
149 if (pending_irq & 0x100) {
153 if (pending_irq & 0xff) {
156 X6502_IRQBegin_c(pending_irq & 0xff);
157 X6502_IRQBegin_a(pending_irq & 0xff);
165 dread_count_c = dread_count_a = dwrite_count_c = dwrite_count_a = 0;
171 g_cnt -= 1 - X.count;
172 if (pending_add_cycles) {
173 g_cnt -= pending_add_cycles*48;
174 pending_add_cycles = 0;
176 if (pending_rebase) {
182 //printf("-- run_end\n");
185 void X6502_Reset_d(void)
187 printf("-- reset\n");
194 void X6502_Power_d(void)
196 printf("-- power\n");
197 if (nes_internal_ram == RAM) printf("nes_internal_ram == RAM!!\n");
198 dread_count_c = dread_count_a = dwrite_count_c = dwrite_count_a = 0;
205 void X6502_AddCycles_d(int x)
207 printf("-- AddCycles(%i|%i)\n", x, x*48);
209 pending_add_cycles = x; // *48;
210 // printf("can't use this in debug\n");
212 //X6502_AddCycles_c(x);
213 //X6502_AddCycles_a(x);
217 void X6502_IRQBegin_d(int w)
219 printf("-- IRQBegin(%02x)\n", w);
221 // X6502_IRQBegin_c(w);
222 // X6502_IRQBegin_a(w);
226 void X6502_IRQEnd_d(int w)
228 printf("-- IRQEnd(%02x)\n", w);
235 void X6502_Rebase_d(void)