4 #include "../compiler.c"
5 #define BUSY_LOOP_HACKS 0
7 #define BUSY_LOOP_HACKS 1
12 typedef signed char INT8;
13 typedef signed short INT16;
14 typedef signed int INT32;
15 typedef unsigned int UINT32;
16 typedef unsigned short UINT16;
17 typedef unsigned char UINT8;
20 #define RB(sh2, a) p32x_sh2_read8(a,sh2)
21 #define RW(sh2, a) p32x_sh2_read16(a,sh2)
22 #define RL(sh2, a) p32x_sh2_read32(a,sh2)
23 #define WB(sh2, a, d) p32x_sh2_write8(a,d,sh2)
24 #define WW(sh2, a, d) p32x_sh2_write16(a,d,sh2)
25 #define WL(sh2, a, d) p32x_sh2_write32(a,d,sh2)
27 // some stuff from sh2comn.h
36 #define FLAGS (M|Q|I|S|T)
38 #define Rn ((opcode>>8)&15)
39 #define Rm ((opcode>>4)&15)
43 extern void lprintf(const char *fmt, ...);
44 #define logerror lprintf
48 static unsigned int op_refs[0x10000];
51 # define LRNM (LRN|LRM)
52 # define rlog(rnm) { \
64 # define rlog1(x) sh2_stats.r[x]++
65 # define rlog2(x1,x2) sh2_stats.r[x1]++; sh2_stats.r[x2]++
77 int sh2_execute(SH2 *sh2, int cycles)
81 sh2->icount = sh2->cycles_timeslice = cycles;
90 sh2->ppc = sh2->delay;
91 opcode = RW(sh2, sh2->delay);
97 opcode = RW(sh2, sh2->pc);
103 switch (opcode & ( 15 << 12))
105 case 0<<12: op0000(sh2, opcode); break;
106 case 1<<12: op0001(sh2, opcode); break;
107 case 2<<12: op0010(sh2, opcode); break;
108 case 3<<12: op0011(sh2, opcode); break;
109 case 4<<12: op0100(sh2, opcode); break;
110 case 5<<12: op0101(sh2, opcode); break;
111 case 6<<12: op0110(sh2, opcode); break;
112 case 7<<12: op0111(sh2, opcode); break;
113 case 8<<12: op1000(sh2, opcode); break;
114 case 9<<12: op1001(sh2, opcode); break;
115 case 10<<12: op1010(sh2, opcode); break;
116 case 11<<12: op1011(sh2, opcode); break;
117 case 12<<12: op1100(sh2, opcode); break;
118 case 13<<12: op1101(sh2, opcode); break;
119 case 14<<12: op1110(sh2, opcode); break;
120 default: op1111(sh2, opcode); break;
125 if (sh2->test_irq && !sh2->delay && sh2->pending_level > ((sh2->sr >> 4) & 0x0f))
127 int level = sh2->pending_level;
128 int vector = sh2->irq_callback(sh2, level);
129 sh2_do_irq(sh2, level, vector);
134 while (sh2->icount > 0 || sh2->delay); /* can't interrupt before delay */
137 return sh2->cycles_timeslice - sh2->icount;
142 int sh2_execute(SH2 *sh2, int cycles)
144 static unsigned int base_pc_[2] = { 0, 0 };
145 static unsigned int end_pc_[2] = { 0, 0 };
146 static unsigned char op_flags_[2][BLOCK_INSN_LIMIT];
147 unsigned int *base_pc = &base_pc_[sh2->is_slave];
148 unsigned int *end_pc = &end_pc_[sh2->is_slave];
149 unsigned char *op_flags = op_flags_[sh2->is_slave];
150 unsigned int pc_expect;
153 sh2->icount = sh2->cycles_timeslice = cycles;
155 if (sh2->pending_level > ((sh2->sr >> 4) & 0x0f))
157 int level = sh2->pending_level;
158 int vector = sh2->irq_callback(sh2, level);
159 sh2_do_irq(sh2, level, vector);
163 if (sh2->icount <= 0)
169 if (sh2->pc < *base_pc || sh2->pc >= *end_pc) {
171 scan_block(*base_pc, sh2->is_slave,
172 op_flags, end_pc, NULL);
174 if ((op_flags[(sh2->pc - *base_pc) / 2]
175 & OF_BTARGET) || sh2->pc == *base_pc
176 || pc_expect != sh2->pc) // branched
183 do_sh2_trace(sh2, sh2->icount);
189 sh2->ppc = sh2->delay;
190 opcode = RW(sh2, sh2->delay);
196 opcode = RW(sh2, sh2->pc);
202 switch (opcode & ( 15 << 12))
204 case 0<<12: op0000(sh2, opcode); break;
205 case 1<<12: op0001(sh2, opcode); break;
206 case 2<<12: op0010(sh2, opcode); break;
207 case 3<<12: op0011(sh2, opcode); break;
208 case 4<<12: op0100(sh2, opcode); break;
209 case 5<<12: op0101(sh2, opcode); break;
210 case 6<<12: op0110(sh2, opcode); break;
211 case 7<<12: op0111(sh2, opcode); break;
212 case 8<<12: op1000(sh2, opcode); break;
213 case 9<<12: op1001(sh2, opcode); break;
214 case 10<<12: op1010(sh2, opcode); break;
215 case 11<<12: op1011(sh2, opcode); break;
216 case 12<<12: op1100(sh2, opcode); break;
217 case 13<<12: op1101(sh2, opcode); break;
218 case 14<<12: op1110(sh2, opcode); break;
219 default: op1111(sh2, opcode); break;
224 if (sh2->test_irq && !sh2->delay && sh2->pending_level > ((sh2->sr >> 4) & 0x0f))
226 int level = sh2->pending_level;
227 int vector = sh2->irq_callback(sh2, level);
228 sh2_do_irq(sh2, level, vector);
236 return sh2->cycles_timeslice - sh2->icount;
247 void sh2_dump_stats(void)
249 static const char *rnames[] = {
250 "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7",
251 "R8", "R9", "R10", "R11", "R12", "R13", "R14", "SP",
252 "PC", "", "PR", "SR", "GBR", "VBR", "MACH", "MACL"
260 for (i = 0; i < 24; i++)
261 total += sh2_stats.r[i];
263 for (i = 0; i < 24; i++) {
264 if (i == 16 || i == 17 || i == 19)
266 printf("r %6.3f%% %-4s %9d\n", (double)sh2_stats.r[i] * 100.0 / total,
267 rnames[i], sh2_stats.r[i]);
270 memset(&sh2_stats, 0, sizeof(sh2_stats));
275 for (i = 0; i < 0x10000; i++)
278 for (u = 0; u < 16; u++) {
280 for (i = 0; i < 0x10000; i++) {
281 if (op_refs[i] > max) {
286 DasmSH2(buff, 0, op);
287 printf("i %6.3f%% %9d %s\n", (double)op_refs[op] * 100.0 / total,
291 memset(op_refs, 0, sizeof(op_refs));