#include "../sh2.h"
+#ifdef DRC_CMP
+#include "../compiler.c"
+#endif
// MAME types
+#ifndef INT8
typedef signed char INT8;
typedef signed short INT16;
typedef signed int INT32;
typedef unsigned int UINT32;
typedef unsigned short UINT16;
typedef unsigned char UINT8;
+#endif
#define RB(sh2, a) p32x_sh2_read8(a,sh2)
#define RW(sh2, a) p32x_sh2_read16(a,sh2)
int sh2_execute(SH2 *sh2, int cycles)
{
- sh2 = sh2_;
+#ifdef DRC_CMP
+ static unsigned int base_pc_[2] = { 0, 0 };
+ static unsigned int end_pc_[2] = { 0, 0 };
+ static unsigned char op_flags_[2][BLOCK_INSN_LIMIT];
+ unsigned int *base_pc = &base_pc_[sh2->is_slave];
+ unsigned int *end_pc = &end_pc_[sh2->is_slave];
+ unsigned char *op_flags = op_flags_[sh2->is_slave];
+ unsigned int pc_expect = sh2->pc;
+#endif
+ UINT32 opcode;
+
sh2->icount = cycles;
if (sh2->icount <= 0)
do
{
- UINT32 opcode;
+#ifdef DRC_CMP
+ if (!sh2->delay) {
+ if (sh2->pc < *base_pc || sh2->pc >= *end_pc) {
+ *base_pc = sh2->pc;
+ scan_block(*base_pc, sh2->is_slave,
+ op_flags, end_pc, NULL);
+ }
+ if ((op_flags[(sh2->pc - *base_pc) / 2]
+ & OF_BTARGET) || sh2->pc == *base_pc
+ || pc_expect != sh2->pc) // branched
+ {
+ pc_expect = sh2->pc;
+ if (sh2->icount < 0)
+ break;
+ }
+
+ do_sh2_trace(sh2, sh2->icount);
+ }
+ pc_expect += 2;
+#endif
if (sh2->delay)
{
}
}
+#ifndef DRC_CMP
while (sh2->icount > 0 || sh2->delay); /* can't interrupt before delay */
-
- return sh2->cycles_timeslice - sh2->icount;
-}
-
-#else // DRC_SH2
-
-#ifdef __i386__
-#define REGPARM(x) __attribute__((regparm(x)))
#else
-#define REGPARM(x)
+ while (1);
#endif
-// drc debug
-void REGPARM(2) sh2_do_op(SH2 *sh2, int opcode)
-{
- sh2->pc += 2;
-
- switch (opcode & ( 15 << 12))
- {
- case 0<<12: op0000(sh2, opcode); break;
- case 1<<12: op0001(sh2, opcode); break;
- case 2<<12: op0010(sh2, opcode); break;
- case 3<<12: op0011(sh2, opcode); break;
- case 4<<12: op0100(sh2, opcode); break;
- case 5<<12: op0101(sh2, opcode); break;
- case 6<<12: op0110(sh2, opcode); break;
- case 7<<12: op0111(sh2, opcode); break;
- case 8<<12: op1000(sh2, opcode); break;
- case 9<<12: op1001(sh2, opcode); break;
- case 10<<12: op1010(sh2, opcode); break;
- case 11<<12: op1011(sh2, opcode); break;
- case 12<<12: op1100(sh2, opcode); break;
- case 13<<12: op1101(sh2, opcode); break;
- case 14<<12: op1110(sh2, opcode); break;
- default: op1111(sh2, opcode); break;
- }
+ return sh2->cycles_timeslice - sh2->icount;
}
-#endif
+#endif // DRC_SH2
#ifdef SH2_STATS
#include <stdio.h>