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1 | #include "../sh2.h" |
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2 | #ifdef DRC_CMP |
3 | #include "../compiler.c" |
4 | #endif |
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5 | |
6 | // MAME types |
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7 | #ifndef INT8 |
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8 | typedef signed char INT8; |
9 | typedef signed short INT16; |
10 | typedef signed int INT32; |
11 | typedef unsigned int UINT32; |
12 | typedef unsigned short UINT16; |
13 | typedef unsigned char UINT8; |
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14 | #endif |
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15 | |
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16 | #define RB(sh2, a) p32x_sh2_read8(a,sh2) |
17 | #define RW(sh2, a) p32x_sh2_read16(a,sh2) |
18 | #define RL(sh2, a) p32x_sh2_read32(a,sh2) |
19 | #define WB(sh2, a, d) p32x_sh2_write8(a,d,sh2) |
20 | #define WW(sh2, a, d) p32x_sh2_write16(a,d,sh2) |
21 | #define WL(sh2, a, d) p32x_sh2_write32(a,d,sh2) |
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22 | |
23 | // some stuff from sh2comn.h |
24 | #define T 0x00000001 |
25 | #define S 0x00000002 |
26 | #define I 0x000000f0 |
27 | #define Q 0x00000100 |
28 | #define M 0x00000200 |
29 | |
30 | #define AM 0xc7ffffff |
31 | |
32 | #define FLAGS (M|Q|I|S|T) |
33 | |
34 | #define Rn ((opcode>>8)&15) |
35 | #define Rm ((opcode>>4)&15) |
36 | |
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37 | #define sh2_state SH2 |
38 | |
39 | extern void lprintf(const char *fmt, ...); |
40 | #define logerror lprintf |
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41 | |
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42 | #ifdef SH2_STATS |
43 | static SH2 sh2_stats; |
44 | static unsigned int op_refs[0x10000]; |
45 | # define LRN 1 |
46 | # define LRM 2 |
47 | # define LRNM (LRN|LRM) |
48 | # define rlog(rnm) { \ |
49 | int op = opcode; \ |
50 | if ((rnm) & LRN) { \ |
51 | op &= ~0x0f00; \ |
52 | sh2_stats.r[Rn]++; \ |
53 | } \ |
54 | if ((rnm) & LRM) { \ |
55 | op &= ~0x00f0; \ |
56 | sh2_stats.r[Rm]++; \ |
57 | } \ |
58 | op_refs[op]++; \ |
59 | } |
60 | # define rlog1(x) sh2_stats.r[x]++ |
61 | # define rlog2(x1,x2) sh2_stats.r[x1]++; sh2_stats.r[x2]++ |
62 | #else |
63 | # define rlog(x) |
64 | # define rlog1(...) |
65 | # define rlog2(...) |
66 | #endif |
67 | |
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68 | #include "sh2.c" |
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69 | |
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70 | #ifndef DRC_SH2 |
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71 | |
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72 | int sh2_execute(SH2 *sh2, int cycles) |
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73 | { |
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74 | #ifdef DRC_CMP |
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75 | static unsigned int base_pc_[2] = { 0, 0 }; |
76 | static unsigned int end_pc_[2] = { 0, 0 }; |
77 | static unsigned char op_flags_[2][BLOCK_INSN_LIMIT]; |
78 | unsigned int *base_pc = &base_pc_[sh2->is_slave]; |
79 | unsigned int *end_pc = &end_pc_[sh2->is_slave]; |
80 | unsigned char *op_flags = op_flags_[sh2->is_slave]; |
81 | unsigned int pc_expect = sh2->pc; |
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82 | #endif |
83 | UINT32 opcode; |
84 | |
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85 | sh2->icount = cycles; |
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86 | |
87 | if (sh2->icount <= 0) |
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88 | return cycles; |
89 | |
90 | sh2->cycles_timeslice = cycles; |
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91 | |
92 | do |
93 | { |
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94 | #ifdef DRC_CMP |
95 | if (!sh2->delay) { |
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96 | if (sh2->pc < *base_pc || sh2->pc >= *end_pc) { |
97 | *base_pc = sh2->pc; |
98 | scan_block(*base_pc, sh2->is_slave, |
99 | op_flags, end_pc, NULL); |
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100 | } |
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101 | if ((op_flags[(sh2->pc - *base_pc) / 2] |
102 | & OF_BTARGET) || sh2->pc == *base_pc |
103 | || pc_expect != sh2->pc) // branched |
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104 | { |
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105 | pc_expect = sh2->pc; |
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106 | if (sh2->icount < 0) |
107 | break; |
108 | } |
109 | |
110 | do_sh2_trace(sh2, sh2->icount); |
111 | } |
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112 | pc_expect += 2; |
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113 | #endif |
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114 | |
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115 | if (sh2->delay) |
116 | { |
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117 | sh2->ppc = sh2->delay; |
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118 | opcode = RW(sh2, sh2->delay); |
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119 | sh2->pc -= 2; |
120 | } |
121 | else |
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122 | { |
123 | sh2->ppc = sh2->pc; |
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124 | opcode = RW(sh2, sh2->pc); |
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125 | } |
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126 | |
127 | sh2->delay = 0; |
128 | sh2->pc += 2; |
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129 | |
130 | switch (opcode & ( 15 << 12)) |
131 | { |
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132 | case 0<<12: op0000(sh2, opcode); break; |
133 | case 1<<12: op0001(sh2, opcode); break; |
134 | case 2<<12: op0010(sh2, opcode); break; |
135 | case 3<<12: op0011(sh2, opcode); break; |
136 | case 4<<12: op0100(sh2, opcode); break; |
137 | case 5<<12: op0101(sh2, opcode); break; |
138 | case 6<<12: op0110(sh2, opcode); break; |
139 | case 7<<12: op0111(sh2, opcode); break; |
140 | case 8<<12: op1000(sh2, opcode); break; |
141 | case 9<<12: op1001(sh2, opcode); break; |
142 | case 10<<12: op1010(sh2, opcode); break; |
143 | case 11<<12: op1011(sh2, opcode); break; |
144 | case 12<<12: op1100(sh2, opcode); break; |
145 | case 13<<12: op1101(sh2, opcode); break; |
146 | case 14<<12: op1110(sh2, opcode); break; |
147 | default: op1111(sh2, opcode); break; |
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148 | } |
149 | |
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150 | sh2->icount--; |
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151 | |
152 | if (sh2->test_irq && !sh2->delay && sh2->pending_level > ((sh2->sr >> 4) & 0x0f)) |
153 | { |
154 | int level = sh2->pending_level; |
155 | int vector = sh2->irq_callback(sh2, level); |
156 | sh2_do_irq(sh2, level, vector); |
157 | sh2->test_irq = 0; |
158 | } |
159 | |
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160 | } |
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161 | #ifndef DRC_CMP |
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162 | while (sh2->icount > 0 || sh2->delay); /* can't interrupt before delay */ |
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163 | #else |
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164 | while (1); |
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165 | #endif |
166 | |
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167 | return sh2->cycles_timeslice - sh2->icount; |
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168 | } |
169 | |
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170 | #endif // DRC_SH2 |
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171 | |
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172 | #ifdef SH2_STATS |
173 | #include <stdio.h> |
174 | #include <string.h> |
175 | #include "sh2dasm.h" |
176 | |
177 | void sh2_dump_stats(void) |
178 | { |
179 | static const char *rnames[] = { |
180 | "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", |
181 | "R8", "R9", "R10", "R11", "R12", "R13", "R14", "SP", |
182 | "PC", "", "PR", "SR", "GBR", "VBR", "MACH", "MACL" |
183 | }; |
184 | long long total; |
185 | char buff[64]; |
186 | int u, i; |
187 | |
188 | // dump reg usage |
189 | total = 0; |
190 | for (i = 0; i < 24; i++) |
191 | total += sh2_stats.r[i]; |
192 | |
193 | for (i = 0; i < 24; i++) { |
194 | if (i == 16 || i == 17 || i == 19) |
195 | continue; |
196 | printf("r %6.3f%% %-4s %9d\n", (double)sh2_stats.r[i] * 100.0 / total, |
197 | rnames[i], sh2_stats.r[i]); |
198 | } |
199 | |
200 | memset(&sh2_stats, 0, sizeof(sh2_stats)); |
201 | |
202 | // dump ops |
203 | printf("\n"); |
204 | total = 0; |
205 | for (i = 0; i < 0x10000; i++) |
206 | total += op_refs[i]; |
207 | |
208 | for (u = 0; u < 16; u++) { |
209 | int max = 0, op = 0; |
210 | for (i = 0; i < 0x10000; i++) { |
211 | if (op_refs[i] > max) { |
212 | max = op_refs[i]; |
213 | op = i; |
214 | } |
215 | } |
216 | DasmSH2(buff, 0, op); |
217 | printf("i %6.3f%% %9d %s\n", (double)op_refs[op] * 100.0 / total, |
218 | op_refs[op], buff); |
219 | op_refs[op] = 0; |
220 | } |
221 | memset(op_refs, 0, sizeof(op_refs)); |
222 | } |
223 | #endif |
224 | |