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;
20 int mapirq_cyc_c, mapirq_cyc_a;
22 static void leave(void)
24 printf("\nA: %02x, X: %02x, Y: %02x, S: %02x\n", X.A, X.X, X.Y, X.S);
25 printf("PC = %04lx, OP=%02lX\n", PC_prev, OP_prev);
26 printf("rest = %08lx\n", nes_registers[4]);
30 static void compare_state(void)
35 if ((nes_registers[0] >> 24) != X.A) {
36 printf("A: %02lx vs %02x\n", nes_registers[0] >> 24, X.A);
40 if ((nes_registers[1] & 0xff) != X.X) {
41 printf("X: %02lx vs %02x\n", nes_registers[1] & 0xff, X.X);
45 if ((nes_registers[2] & 0xff) != X.Y) {
46 printf("Y: %02lx vs %02x\n", nes_registers[2] & 0xff, X.Y);
50 if (nes_registers[3] - pc_base != X.PC) {
51 printf("PC: %04lx vs %04x\n", nes_registers[3] - pc_base, X.PC);
55 if ((nes_registers[4] >> 24) != X.S) {
56 printf("S: %02lx vs %02x\n", nes_registers[4] >> 24, X.S);
60 if (((nes_registers[4]>>8)&0xff) != X.IRQlow) {
61 printf("IRQlow: %02lx vs %02x\n", ((nes_registers[4]>>8)&0xff), X.IRQlow);
66 nes_flags = nes_registers[4] & 0x5d;
67 if ( nes_registers[5]&0x80000000) nes_flags |= 0x80; // N
68 if (!(nes_registers[5]&0x000000ff)) nes_flags |= 0x02; // Z
69 // nes_flags |= 0x20; // U, not set in C core (set only when pushing)
71 if (nes_flags != (X.P&~0x20)) {
72 printf("flags: %02x vs %02x\n", nes_flags, (X.P&~0x20));
76 if ((int32)nes_registers[7] != X.count) {
77 printf("cycles: %li vs %li\n", (int32)nes_registers[7], X.count);
81 if (dread_count_a != dread_count_c) {
82 printf("dread_count: %i vs %i\n", dread_count_a, dread_count_c);
86 if (dwrite_count_a != dwrite_count_c) {
87 printf("dwrite_count: %i vs %i\n", dwrite_count_a, dwrite_count_c);
91 for (i = dwrite_count_a - 1; !fail && i >= 0; i--)
92 if (dwrites_a[i] != dwrites_c[i]) {
93 printf("dwrites[%i]: %06lx vs %06lx\n", dwrite_count_a, dwrites_a[i], dwrites_c[i]);
97 if (mapirq_cyc_a != mapirq_cyc_c) {
98 printf("mapirq_cyc: %i vs %i\n", mapirq_cyc_a, mapirq_cyc_c);
106 static void compare_ram(void)
109 for (i = 0; i < 0x800/4; i++)
111 if (((int *)nes_internal_ram)[i] != ((int32 *)RAM)[i]) {
114 for (u = i*4; u < i*4+4; u++)
115 if (nes_internal_ram[u] != RAM[u])
116 printf("RAM[%03x]: %02x vs %02x\n", u, nes_internal_ram[u], RAM[u]);
124 void TriggerIRQ_d(void)
127 pending_irq |= 0x100;
130 void TriggerNMI_d(void)
138 void TriggerNMINSF_d(void)
142 void X6502_Run_d(int32 c)
144 int32 cycles = c << 4; /* *16 */
145 if (PAL) cycles -= c; /* *15 */
147 //printf("-- %06i: run(%i)\n", (int)g_cnt, (int)c);
156 if (pending_irq & 0x100) {
160 if (pending_irq & 0xff) {
163 X6502_IRQBegin_c(pending_irq & 0xff);
164 X6502_IRQBegin_a(pending_irq & 0xff);
172 dread_count_c = dread_count_a = dwrite_count_c = dwrite_count_a = 0;
173 mapirq_cyc_a = mapirq_cyc_c = 0;
179 g_cnt -= 1 - X.count;
180 if (pending_add_cycles) {
181 g_cnt -= pending_add_cycles*48;
182 pending_add_cycles = 0;
184 if (pending_rebase) {
190 //printf("-- run_end\n");
193 void X6502_Reset_d(void)
195 printf("-- reset\n");
202 void X6502_Power_d(void)
204 printf("-- power\n");
205 if (nes_internal_ram == RAM) printf("nes_internal_ram == RAM!!\n");
206 dread_count_c = dread_count_a = dwrite_count_c = dwrite_count_a = 0;
207 mapirq_cyc_c = mapirq_cyc_a = 0;
214 void X6502_AddCycles_d(int x)
216 printf("-- AddCycles(%i|%i)\n", x, x*48);
218 pending_add_cycles = x; // *48;
219 // printf("can't use this in debug\n");
221 //X6502_AddCycles_c(x);
222 //X6502_AddCycles_a(x);
226 void X6502_IRQBegin_d(int w)
228 printf("-- IRQBegin(%02x)\n", w);
230 // X6502_IRQBegin_c(w);
231 // X6502_IRQBegin_a(w);
235 void X6502_IRQEnd_d(int w)
237 printf("-- IRQEnd(%02x)\n", w);
244 void X6502_Rebase_d(void)