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1 | #include "../sh2.h" |
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2 | |
3 | // MAME types |
4 | typedef signed char INT8; |
5 | typedef signed short INT16; |
6 | typedef signed int INT32; |
7 | typedef unsigned int UINT32; |
8 | typedef unsigned short UINT16; |
9 | typedef unsigned char UINT8; |
10 | |
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11 | #define RB(sh2, a) p32x_sh2_read8(a,sh2) |
12 | #define RW(sh2, a) p32x_sh2_read16(a,sh2) |
13 | #define RL(sh2, a) p32x_sh2_read32(a,sh2) |
14 | #define WB(sh2, a, d) p32x_sh2_write8(a,d,sh2) |
15 | #define WW(sh2, a, d) p32x_sh2_write16(a,d,sh2) |
16 | #define WL(sh2, a, d) p32x_sh2_write32(a,d,sh2) |
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17 | |
18 | // some stuff from sh2comn.h |
19 | #define T 0x00000001 |
20 | #define S 0x00000002 |
21 | #define I 0x000000f0 |
22 | #define Q 0x00000100 |
23 | #define M 0x00000200 |
24 | |
25 | #define AM 0xc7ffffff |
26 | |
27 | #define FLAGS (M|Q|I|S|T) |
28 | |
29 | #define Rn ((opcode>>8)&15) |
30 | #define Rm ((opcode>>4)&15) |
31 | |
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32 | #define sh2_state SH2 |
33 | |
34 | extern void lprintf(const char *fmt, ...); |
35 | #define logerror lprintf |
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36 | |
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37 | #ifdef SH2_STATS |
38 | static SH2 sh2_stats; |
39 | static unsigned int op_refs[0x10000]; |
40 | # define LRN 1 |
41 | # define LRM 2 |
42 | # define LRNM (LRN|LRM) |
43 | # define rlog(rnm) { \ |
44 | int op = opcode; \ |
45 | if ((rnm) & LRN) { \ |
46 | op &= ~0x0f00; \ |
47 | sh2_stats.r[Rn]++; \ |
48 | } \ |
49 | if ((rnm) & LRM) { \ |
50 | op &= ~0x00f0; \ |
51 | sh2_stats.r[Rm]++; \ |
52 | } \ |
53 | op_refs[op]++; \ |
54 | } |
55 | # define rlog1(x) sh2_stats.r[x]++ |
56 | # define rlog2(x1,x2) sh2_stats.r[x1]++; sh2_stats.r[x2]++ |
57 | #else |
58 | # define rlog(x) |
59 | # define rlog1(...) |
60 | # define rlog2(...) |
61 | #endif |
62 | |
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63 | #include "sh2.c" |
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64 | |
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65 | #ifndef DRC_SH2 |
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66 | |
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67 | int sh2_execute(SH2 *sh2, int cycles) |
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68 | { |
69 | sh2 = sh2_; |
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70 | sh2->icount = cycles; |
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71 | |
72 | if (sh2->icount <= 0) |
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73 | return cycles; |
74 | |
75 | sh2->cycles_timeslice = cycles; |
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76 | |
77 | do |
78 | { |
79 | UINT32 opcode; |
80 | |
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81 | if (sh2->delay) |
82 | { |
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83 | sh2->ppc = sh2->delay; |
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84 | opcode = RW(sh2, sh2->delay); |
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85 | sh2->pc -= 2; |
86 | } |
87 | else |
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88 | { |
89 | sh2->ppc = sh2->pc; |
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90 | opcode = RW(sh2, sh2->pc); |
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91 | } |
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92 | |
93 | sh2->delay = 0; |
94 | sh2->pc += 2; |
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95 | |
96 | switch (opcode & ( 15 << 12)) |
97 | { |
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98 | case 0<<12: op0000(sh2, opcode); break; |
99 | case 1<<12: op0001(sh2, opcode); break; |
100 | case 2<<12: op0010(sh2, opcode); break; |
101 | case 3<<12: op0011(sh2, opcode); break; |
102 | case 4<<12: op0100(sh2, opcode); break; |
103 | case 5<<12: op0101(sh2, opcode); break; |
104 | case 6<<12: op0110(sh2, opcode); break; |
105 | case 7<<12: op0111(sh2, opcode); break; |
106 | case 8<<12: op1000(sh2, opcode); break; |
107 | case 9<<12: op1001(sh2, opcode); break; |
108 | case 10<<12: op1010(sh2, opcode); break; |
109 | case 11<<12: op1011(sh2, opcode); break; |
110 | case 12<<12: op1100(sh2, opcode); break; |
111 | case 13<<12: op1101(sh2, opcode); break; |
112 | case 14<<12: op1110(sh2, opcode); break; |
113 | default: op1111(sh2, opcode); break; |
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114 | } |
115 | |
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116 | sh2->icount--; |
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117 | |
118 | if (sh2->test_irq && !sh2->delay && sh2->pending_level > ((sh2->sr >> 4) & 0x0f)) |
119 | { |
120 | int level = sh2->pending_level; |
121 | int vector = sh2->irq_callback(sh2, level); |
122 | sh2_do_irq(sh2, level, vector); |
123 | sh2->test_irq = 0; |
124 | } |
125 | |
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126 | } |
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127 | while (sh2->icount > 0 || sh2->delay); /* can't interrupt before delay */ |
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128 | |
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129 | return sh2->cycles_timeslice - sh2->icount; |
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130 | } |
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131 | |
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132 | #else // DRC_SH2 |
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133 | |
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134 | #ifdef __i386__ |
135 | #define REGPARM(x) __attribute__((regparm(x))) |
136 | #else |
137 | #define REGPARM(x) |
138 | #endif |
139 | |
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140 | // drc debug |
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141 | void REGPARM(2) sh2_do_op(SH2 *sh2, int opcode) |
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142 | { |
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143 | sh2->pc += 2; |
144 | |
145 | switch (opcode & ( 15 << 12)) |
146 | { |
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147 | case 0<<12: op0000(sh2, opcode); break; |
148 | case 1<<12: op0001(sh2, opcode); break; |
149 | case 2<<12: op0010(sh2, opcode); break; |
150 | case 3<<12: op0011(sh2, opcode); break; |
151 | case 4<<12: op0100(sh2, opcode); break; |
152 | case 5<<12: op0101(sh2, opcode); break; |
153 | case 6<<12: op0110(sh2, opcode); break; |
154 | case 7<<12: op0111(sh2, opcode); break; |
155 | case 8<<12: op1000(sh2, opcode); break; |
156 | case 9<<12: op1001(sh2, opcode); break; |
157 | case 10<<12: op1010(sh2, opcode); break; |
158 | case 11<<12: op1011(sh2, opcode); break; |
159 | case 12<<12: op1100(sh2, opcode); break; |
160 | case 13<<12: op1101(sh2, opcode); break; |
161 | case 14<<12: op1110(sh2, opcode); break; |
162 | default: op1111(sh2, opcode); break; |
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163 | } |
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164 | } |
165 | |
166 | #endif |
167 | |
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168 | #ifdef SH2_STATS |
169 | #include <stdio.h> |
170 | #include <string.h> |
171 | #include "sh2dasm.h" |
172 | |
173 | void sh2_dump_stats(void) |
174 | { |
175 | static const char *rnames[] = { |
176 | "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", |
177 | "R8", "R9", "R10", "R11", "R12", "R13", "R14", "SP", |
178 | "PC", "", "PR", "SR", "GBR", "VBR", "MACH", "MACL" |
179 | }; |
180 | long long total; |
181 | char buff[64]; |
182 | int u, i; |
183 | |
184 | // dump reg usage |
185 | total = 0; |
186 | for (i = 0; i < 24; i++) |
187 | total += sh2_stats.r[i]; |
188 | |
189 | for (i = 0; i < 24; i++) { |
190 | if (i == 16 || i == 17 || i == 19) |
191 | continue; |
192 | printf("r %6.3f%% %-4s %9d\n", (double)sh2_stats.r[i] * 100.0 / total, |
193 | rnames[i], sh2_stats.r[i]); |
194 | } |
195 | |
196 | memset(&sh2_stats, 0, sizeof(sh2_stats)); |
197 | |
198 | // dump ops |
199 | printf("\n"); |
200 | total = 0; |
201 | for (i = 0; i < 0x10000; i++) |
202 | total += op_refs[i]; |
203 | |
204 | for (u = 0; u < 16; u++) { |
205 | int max = 0, op = 0; |
206 | for (i = 0; i < 0x10000; i++) { |
207 | if (op_refs[i] > max) { |
208 | max = op_refs[i]; |
209 | op = i; |
210 | } |
211 | } |
212 | DasmSH2(buff, 0, op); |
213 | printf("i %6.3f%% %9d %s\n", (double)op_refs[op] * 100.0 / total, |
214 | op_refs[op], buff); |
215 | op_refs[op] = 0; |
216 | } |
217 | memset(op_refs, 0, sizeof(op_refs)); |
218 | } |
219 | #endif |
220 | |