af32b6c2 |
1 | #include <stdio.h> |
2 | #include <stdlib.h> |
3 | |
4 | #include "types.h" |
5 | #include "x6502.h" |
6 | #include "fce.h" |
7 | |
8 | // asm core state |
9 | extern uint32 nes_registers[0x10]; |
10 | extern uint32 pc_base; |
11 | uint32 PC_prev = 0; |
12 | |
13 | |
14 | static void leave(void) |
15 | { |
16 | printf("A: %02x, X: %02x, Y: %02x, S: %02x\n", X.A, X.X, X.Y, X.S); |
17 | printf("PC = %04lx, OP=%02X\n", PC_prev, (PC_prev < 0x2000) ? RAM[PC_prev&0x7ff] : ARead[PC_prev](PC_prev)); |
18 | exit(1); |
19 | } |
20 | |
21 | static void compare_state(void) |
22 | { |
23 | uint8 nes_flags; |
24 | |
25 | if ((nes_registers[0] >> 24) != X.A) { |
26 | printf("A: %02lx vs %02x\n", nes_registers[0] >> 24, X.A); |
27 | leave(); |
28 | } |
29 | |
30 | if ((nes_registers[1] & 0xff) != X.X) { |
31 | printf("X: %02lx vs %02x\n", nes_registers[1] & 0xff, X.X); |
32 | leave(); |
33 | } |
34 | |
35 | if ((nes_registers[2] & 0xff) != X.Y) { |
36 | printf("Y: %02lx vs %02x\n", nes_registers[2] & 0xff, X.Y); |
37 | leave(); |
38 | } |
39 | |
40 | if (nes_registers[3] - pc_base != X.PC) { |
41 | printf("PC: %04lx vs %04x\n", nes_registers[3] - pc_base, X.PC); |
42 | leave(); |
43 | } |
44 | |
45 | if ((nes_registers[4] >> 24) != X.S) { |
46 | printf("S: %02lx vs %02x\n", nes_registers[4] >> 24, X.S); |
47 | leave(); |
48 | } |
49 | |
50 | if (((nes_registers[4]>>8)&0xff) != X.IRQlow) { |
51 | printf("IRQlow: %02lx vs %02x\n", ((nes_registers[4]>>8)&0xff), X.IRQlow); |
52 | leave(); |
53 | } |
54 | |
55 | // NVUB DIZC |
56 | nes_flags = nes_registers[4] & 0x5d; |
57 | if ( nes_registers[5]&0x80000000) nes_flags |= 0x80; // N |
58 | if (!(nes_registers[5]&0x000000ff)) nes_flags |= 0x02; // Z |
59 | // nes_flags |= 0x20; // U, not set in C core (set only when pushing) |
60 | |
61 | if (nes_flags != X.P) { |
62 | printf("flags: %02x vs %02x\n", nes_flags, X.P); |
63 | leave(); |
64 | } |
65 | |
66 | if ((int32)nes_registers[7] != X.count) { |
67 | printf("cycles: %li vs %li\n", (int32)nes_registers[7], X.count); |
68 | leave(); |
69 | } |
70 | } |
71 | |
72 | |
73 | void TriggerIRQ_d(void) |
74 | { |
75 | printf("-- irq\n"); |
76 | TriggerIRQ_c(); |
77 | TriggerIRQ_a(); |
78 | compare_state(); |
79 | } |
80 | |
81 | void TriggerNMI_d(void) |
82 | { |
83 | printf("-- nmi\n"); |
84 | TriggerNMI_c(); |
85 | TriggerNMI_a(); |
86 | compare_state(); |
87 | } |
88 | |
89 | void TriggerNMINSF_d(void) |
90 | { |
91 | } |
92 | |
93 | void X6502_Run_d(int32 c) |
94 | { |
95 | int32 cycles = c << 4; /* *16 */ \ |
96 | if (PAL) cycles -= c; /* *15 */ \ |
97 | |
98 | printf("-- run(%i)\n", (int)c); |
99 | |
100 | while (cycles > 0) |
101 | { |
102 | PC_prev = X.PC; |
103 | nes_registers[7]=1; |
104 | X.count=1; |
105 | X6502_Run_c(); |
106 | X6502_Run_a(); |
107 | compare_state(); |
108 | cycles -= 1 - X.count; |
109 | } |
110 | } |
111 | |
112 | void X6502_Reset_d(void) |
113 | { |
114 | printf("-- reset\n"); |
115 | |
116 | X6502_Reset_c(); |
117 | X6502_Reset_a(); |
118 | compare_state(); |
119 | } |
120 | |
121 | void X6502_Power_d(void) |
122 | { |
123 | printf("-- power\n"); |
124 | |
125 | X6502_Power_c(); |
126 | X6502_Power_a(); |
127 | compare_state(); |
128 | } |
129 | |
130 | void X6502_AddCycles_d(int x) |
131 | { |
132 | printf("-- AddCycles(%i)\n", x); |
133 | |
134 | X6502_AddCycles_c(x); |
135 | X6502_AddCycles_a(x); |
136 | //compare_state(); |
137 | } |
138 | |
139 | void X6502_IRQBegin_d(int w) |
140 | { |
141 | printf("-- IRQBegin(%02x)\n", w); |
142 | |
143 | X6502_IRQBegin_c(w); |
144 | X6502_IRQBegin_a(w); |
145 | } |
146 | |
147 | void X6502_IRQEnd_d(int w) |
148 | { |
149 | printf("-- IRQEnd(%02x)\n", w); |
150 | |
151 | X6502_IRQEnd_c(w); |
152 | X6502_IRQEnd_a(w); |
153 | } |
154 | |
155 | |
156 | |