461 lines
18 KiB
C
461 lines
18 KiB
C
#include <math.h>
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static int
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opPREFETCH_a16(uint32_t fetchdat)
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{
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fetch_ea_16(fetchdat);
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ILLEGAL_ON(cpu_mod == 3);
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CLOCK_CYCLES(1);
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return 0;
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}
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static int
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opPREFETCH_a32(uint32_t fetchdat)
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{
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fetch_ea_32(fetchdat);
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ILLEGAL_ON(cpu_mod == 3);
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CLOCK_CYCLES(1);
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return 0;
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}
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static int
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opFEMMS(uint32_t fetchdat)
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{
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ILLEGAL_ON(!cpu_has_feature(CPU_FEATURE_MMX));
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if (cr0 & 0xc) {
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x86_int(7);
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return 1;
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}
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x87_emms();
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CLOCK_CYCLES(1);
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return 0;
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}
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static int
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opPAVGUSB(uint32_t fetchdat)
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{
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MMX_REG src;
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MMX_GETSRC();
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cpu_state.MM[cpu_reg].b[0] = (cpu_state.MM[cpu_reg].b[0] + src.b[0] + 1) >> 1;
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cpu_state.MM[cpu_reg].b[1] = (cpu_state.MM[cpu_reg].b[1] + src.b[1] + 1) >> 1;
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cpu_state.MM[cpu_reg].b[2] = (cpu_state.MM[cpu_reg].b[2] + src.b[2] + 1) >> 1;
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cpu_state.MM[cpu_reg].b[3] = (cpu_state.MM[cpu_reg].b[3] + src.b[3] + 1) >> 1;
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cpu_state.MM[cpu_reg].b[4] = (cpu_state.MM[cpu_reg].b[4] + src.b[4] + 1) >> 1;
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cpu_state.MM[cpu_reg].b[5] = (cpu_state.MM[cpu_reg].b[5] + src.b[5] + 1) >> 1;
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cpu_state.MM[cpu_reg].b[6] = (cpu_state.MM[cpu_reg].b[6] + src.b[6] + 1) >> 1;
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cpu_state.MM[cpu_reg].b[7] = (cpu_state.MM[cpu_reg].b[7] + src.b[7] + 1) >> 1;
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return 0;
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}
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static int
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opPF2ID(uint32_t fetchdat)
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{
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MMX_REG src;
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MMX_GETSRC();
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cpu_state.MM[cpu_reg].sl[0] = (int32_t) src.f[0];
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cpu_state.MM[cpu_reg].sl[1] = (int32_t) src.f[1];
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return 0;
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}
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static int
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opPF2IW(uint32_t fetchdat)
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{
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MMX_REG src;
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MMX_GETSRC();
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cpu_state.MM[cpu_reg].sw[0] = (int32_t) src.f[0];
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cpu_state.MM[cpu_reg].sw[1] = (int32_t) src.f[1];
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return 0;
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}
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static int
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opPFACC(uint32_t fetchdat)
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{
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MMX_REG src;
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float tempf;
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MMX_GETSRC();
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tempf = cpu_state.MM[cpu_reg].f[0] + cpu_state.MM[cpu_reg].f[1];
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cpu_state.MM[cpu_reg].f[1] = src.f[0] + src.f[1];
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cpu_state.MM[cpu_reg].f[0] = tempf;
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return 0;
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}
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static int
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opPFNACC(uint32_t fetchdat)
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{
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MMX_REG src;
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float tempf;
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MMX_GETSRC();
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tempf = cpu_state.MM[cpu_reg].f[0] - cpu_state.MM[cpu_reg].f[1];
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cpu_state.MM[cpu_reg].f[1] = src.f[0] - src.f[1];
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cpu_state.MM[cpu_reg].f[0] = tempf;
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return 0;
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}
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static int
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opPFPNACC(uint32_t fetchdat)
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{
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MMX_REG src;
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float tempf;
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MMX_GETSRC();
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tempf = cpu_state.MM[cpu_reg].f[0] - cpu_state.MM[cpu_reg].f[1];
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cpu_state.MM[cpu_reg].f[1] = src.f[0] + src.f[1];
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cpu_state.MM[cpu_reg].f[0] = tempf;
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return 0;
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}
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static int
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opPSWAPD(uint32_t fetchdat)
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{
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MMX_REG src;
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float tempf, tempf2;
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MMX_GETSRC();
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/* We have to do this in case source and destination overlap. */
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tempf = src.f[0];
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tempf2 = src.f[1];
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cpu_state.MM[cpu_reg].f[1] = tempf;
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cpu_state.MM[cpu_reg].f[0] = tempf2;
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return 0;
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}
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static int
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opPFADD(uint32_t fetchdat)
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{
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MMX_REG src;
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MMX_GETSRC();
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cpu_state.MM[cpu_reg].f[0] += src.f[0];
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cpu_state.MM[cpu_reg].f[1] += src.f[1];
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return 0;
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}
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static int
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opPFCMPEQ(uint32_t fetchdat)
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{
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MMX_REG src;
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MMX_GETSRC();
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cpu_state.MM[cpu_reg].l[0] = (cpu_state.MM[cpu_reg].f[0] == src.f[0]) ? 0xffffffff : 0;
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cpu_state.MM[cpu_reg].l[1] = (cpu_state.MM[cpu_reg].f[1] == src.f[1]) ? 0xffffffff : 0;
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return 0;
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}
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static int
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opPFCMPGE(uint32_t fetchdat)
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{
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MMX_REG src;
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MMX_GETSRC();
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cpu_state.MM[cpu_reg].l[0] = (cpu_state.MM[cpu_reg].f[0] >= src.f[0]) ? 0xffffffff : 0;
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cpu_state.MM[cpu_reg].l[1] = (cpu_state.MM[cpu_reg].f[1] >= src.f[1]) ? 0xffffffff : 0;
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return 0;
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}
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static int
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opPFCMPGT(uint32_t fetchdat)
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{
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MMX_REG src;
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MMX_GETSRC();
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cpu_state.MM[cpu_reg].l[0] = (cpu_state.MM[cpu_reg].f[0] > src.f[0]) ? 0xffffffff : 0;
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cpu_state.MM[cpu_reg].l[1] = (cpu_state.MM[cpu_reg].f[1] > src.f[1]) ? 0xffffffff : 0;
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return 0;
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}
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static int
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opPFMAX(uint32_t fetchdat)
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{
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MMX_REG src;
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MMX_GETSRC();
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if (src.f[0] > cpu_state.MM[cpu_reg].f[0])
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cpu_state.MM[cpu_reg].f[0] = src.f[0];
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if (src.f[1] > cpu_state.MM[cpu_reg].f[1])
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cpu_state.MM[cpu_reg].f[1] = src.f[1];
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return 0;
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}
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static int
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opPFMIN(uint32_t fetchdat)
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{
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MMX_REG src;
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MMX_GETSRC();
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if (src.f[0] < cpu_state.MM[cpu_reg].f[0])
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cpu_state.MM[cpu_reg].f[0] = src.f[0];
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if (src.f[1] < cpu_state.MM[cpu_reg].f[1])
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cpu_state.MM[cpu_reg].f[1] = src.f[1];
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return 0;
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}
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static int
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opPFMUL(uint32_t fetchdat)
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{
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MMX_REG src;
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MMX_GETSRC();
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cpu_state.MM[cpu_reg].f[0] *= src.f[0];
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cpu_state.MM[cpu_reg].f[1] *= src.f[1];
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return 0;
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}
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static int
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opPFRCP(uint32_t fetchdat)
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{
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union {
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uint32_t i;
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float f;
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} src;
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if (cpu_mod == 3) {
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src.f = cpu_state.MM[cpu_rm].f[0];
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CLOCK_CYCLES(1);
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} else {
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SEG_CHECK_READ(cpu_state.ea_seg);
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src.i = readmeml(easeg, cpu_state.eaaddr);
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if (cpu_state.abrt)
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return 1;
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CLOCK_CYCLES(2);
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}
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cpu_state.MM[cpu_reg].f[0] = 1.0 / src.f;
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cpu_state.MM[cpu_reg].f[1] = cpu_state.MM[cpu_reg].f[0];
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return 0;
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}
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/*Since opPFRCP() calculates a full precision reciprocal, treat the followup iterations as MOVs*/
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static int
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opPFRCPIT1(uint32_t fetchdat)
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{
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MMX_REG src;
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MMX_GETSRC();
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cpu_state.MM[cpu_reg].f[0] = src.f[0];
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cpu_state.MM[cpu_reg].f[1] = src.f[1];
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return 0;
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}
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static int
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opPFRCPIT2(uint32_t fetchdat)
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{
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MMX_REG src;
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MMX_GETSRC();
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cpu_state.MM[cpu_reg].f[0] = src.f[0];
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cpu_state.MM[cpu_reg].f[1] = src.f[1];
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return 0;
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}
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static int
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opPFRSQRT(uint32_t fetchdat)
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{
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union {
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uint32_t i;
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float f;
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} src;
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if (cpu_mod == 3) {
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src.f = cpu_state.MM[cpu_rm].f[0];
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CLOCK_CYCLES(1);
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} else {
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SEG_CHECK_READ(cpu_state.ea_seg);
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src.i = readmeml(easeg, cpu_state.eaaddr);
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if (cpu_state.abrt)
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return 1;
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CLOCK_CYCLES(2);
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}
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cpu_state.MM[cpu_reg].f[0] = 1.0 / sqrt(src.f);
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cpu_state.MM[cpu_reg].f[1] = cpu_state.MM[cpu_reg].f[0];
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return 0;
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}
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/*Since opPFRSQRT() calculates a full precision inverse square root, treat the followup iteration as a NOP*/
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static int
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opPFRSQIT1(uint32_t fetchdat)
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{
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MMX_REG src;
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MMX_GETSRC();
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UN_USED(src);
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return 0;
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}
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static int
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opPFSUB(uint32_t fetchdat)
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{
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MMX_REG src;
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MMX_GETSRC();
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cpu_state.MM[cpu_reg].f[0] -= src.f[0];
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cpu_state.MM[cpu_reg].f[1] -= src.f[1];
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return 0;
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}
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static int
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opPFSUBR(uint32_t fetchdat)
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{
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MMX_REG src;
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MMX_GETSRC();
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cpu_state.MM[cpu_reg].f[0] = src.f[0] - cpu_state.MM[cpu_reg].f[0];
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cpu_state.MM[cpu_reg].f[1] = src.f[1] - cpu_state.MM[cpu_reg].f[1];
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return 0;
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}
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static int
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opPI2FD(uint32_t fetchdat)
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{
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MMX_REG src;
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MMX_GETSRC();
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cpu_state.MM[cpu_reg].f[0] = (float) src.sl[0];
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cpu_state.MM[cpu_reg].f[1] = (float) src.sl[1];
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return 0;
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}
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static int
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opPI2FW(uint32_t fetchdat)
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{
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MMX_REG src;
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MMX_GETSRC();
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cpu_state.MM[cpu_reg].f[0] = (float) src.sw[0];
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cpu_state.MM[cpu_reg].f[1] = (float) src.sw[1];
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return 0;
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}
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static int
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opPMULHRW(uint32_t fetchdat)
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{
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if (cpu_mod == 3) {
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cpu_state.MM[cpu_reg].w[0] = (((int32_t) cpu_state.MM[cpu_reg].sw[0] * (int32_t) cpu_state.MM[cpu_rm].sw[0]) + 0x8000) >> 16;
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cpu_state.MM[cpu_reg].w[1] = (((int32_t) cpu_state.MM[cpu_reg].sw[1] * (int32_t) cpu_state.MM[cpu_rm].sw[1]) + 0x8000) >> 16;
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cpu_state.MM[cpu_reg].w[2] = (((int32_t) cpu_state.MM[cpu_reg].sw[2] * (int32_t) cpu_state.MM[cpu_rm].sw[2]) + 0x8000) >> 16;
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cpu_state.MM[cpu_reg].w[3] = (((int32_t) cpu_state.MM[cpu_reg].sw[3] * (int32_t) cpu_state.MM[cpu_rm].sw[3]) + 0x8000) >> 16;
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CLOCK_CYCLES(1);
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} else {
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MMX_REG src;
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SEG_CHECK_READ(cpu_state.ea_seg);
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src.l[0] = readmeml(easeg, cpu_state.eaaddr);
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src.l[1] = readmeml(easeg, cpu_state.eaaddr + 4);
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if (cpu_state.abrt)
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return 0;
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cpu_state.MM[cpu_reg].w[0] = ((int32_t) (cpu_state.MM[cpu_reg].sw[0] * (int32_t) src.sw[0]) + 0x8000) >> 16;
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cpu_state.MM[cpu_reg].w[1] = ((int32_t) (cpu_state.MM[cpu_reg].sw[1] * (int32_t) src.sw[1]) + 0x8000) >> 16;
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cpu_state.MM[cpu_reg].w[2] = ((int32_t) (cpu_state.MM[cpu_reg].sw[2] * (int32_t) src.sw[2]) + 0x8000) >> 16;
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cpu_state.MM[cpu_reg].w[3] = ((int32_t) (cpu_state.MM[cpu_reg].sw[3] * (int32_t) src.sw[3]) + 0x8000) >> 16;
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CLOCK_CYCLES(2);
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}
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return 0;
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}
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const OpFn OP_TABLE(3DNOW)[256] = {
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// clang-format off
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/* 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f*/
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/*00*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, opPI2FD, ILLEGAL, ILLEGAL,
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/*10*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, opPF2ID, ILLEGAL, ILLEGAL,
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/*20*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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/*30*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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/*40*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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/*50*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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/*60*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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/*70*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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/*80*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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/*90*/ opPFCMPGE, ILLEGAL, ILLEGAL, ILLEGAL, opPFMIN, ILLEGAL, opPFRCP, opPFRSQRT, ILLEGAL, ILLEGAL, opPFSUB, ILLEGAL, ILLEGAL, ILLEGAL, opPFADD, ILLEGAL,
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/*a0*/ opPFCMPGT, ILLEGAL, ILLEGAL, ILLEGAL, opPFMAX, ILLEGAL, opPFRCPIT1, opPFRSQIT1, ILLEGAL, ILLEGAL, opPFSUBR, ILLEGAL, ILLEGAL, ILLEGAL, opPFACC, ILLEGAL,
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/*b0*/ opPFCMPEQ, ILLEGAL, ILLEGAL, ILLEGAL, opPFMUL, ILLEGAL, opPFRCPIT2, opPMULHRW, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, opPAVGUSB,
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/*c0*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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/*d0*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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/*e0*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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/*f0*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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// clang-format on
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};
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const OpFn OP_TABLE(3DNOWE)[256] = {
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// clang-format off
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/* 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f*/
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/*00*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, opPI2FW, opPI2FD, ILLEGAL, ILLEGAL,
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/*10*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, opPF2IW, opPF2ID, ILLEGAL, ILLEGAL,
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/*20*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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/*30*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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/*40*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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/*50*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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|
/*60*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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|
/*70*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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|
|
|
/*80*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, opPFNACC, ILLEGAL, ILLEGAL, ILLEGAL, opPFPNACC, ILLEGAL,
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/*90*/ opPFCMPGE, ILLEGAL, ILLEGAL, ILLEGAL, opPFMIN, ILLEGAL, opPFRCP, opPFRSQRT, ILLEGAL, ILLEGAL, opPFSUB, ILLEGAL, ILLEGAL, ILLEGAL, opPFADD, ILLEGAL,
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/*a0*/ opPFCMPGT, ILLEGAL, ILLEGAL, ILLEGAL, opPFMAX, ILLEGAL, opPFRCPIT1, opPFRSQIT1, ILLEGAL, ILLEGAL, opPFSUBR, ILLEGAL, ILLEGAL, ILLEGAL, opPFACC, ILLEGAL,
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/*b0*/ opPFCMPEQ, ILLEGAL, ILLEGAL, ILLEGAL, opPFMUL, ILLEGAL, opPFRCPIT2, opPMULHRW, ILLEGAL, ILLEGAL, ILLEGAL, opPSWAPD, ILLEGAL, ILLEGAL, ILLEGAL, opPAVGUSB,
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/*c0*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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/*d0*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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/*e0*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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/*f0*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
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// clang-format on
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|
};
|
|
|
|
static int
|
|
op3DNOW_a16(uint32_t fetchdat)
|
|
{
|
|
uint8_t opcode;
|
|
|
|
MMX_ENTER();
|
|
|
|
fetch_ea_16(fetchdat);
|
|
opcode = fastreadb(cs + cpu_state.pc);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
cpu_state.pc++;
|
|
|
|
return x86_opcodes_3DNOW[opcode](0);
|
|
}
|
|
static int
|
|
op3DNOW_a32(uint32_t fetchdat)
|
|
{
|
|
uint8_t opcode;
|
|
|
|
MMX_ENTER();
|
|
|
|
fetch_ea_32(fetchdat);
|
|
opcode = fastreadb(cs + cpu_state.pc);
|
|
if (cpu_state.abrt)
|
|
return 1;
|
|
cpu_state.pc++;
|
|
|
|
return x86_opcodes_3DNOW[opcode](0);
|
|
}
|