34 lines
666 B
C
34 lines
666 B
C
static int
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opRDTSC(uint32_t fetchdat)
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{
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if (!cpu_has_feature(CPU_FEATURE_RDTSC)) {
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cpu_state.pc = cpu_state.oldpc;
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x86illegal();
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return 1;
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}
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if ((cr4 & CR4_TSD) && CPL) {
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x86gpf("RDTSC when TSD set and CPL != 0", 0);
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return 1;
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}
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EAX = tsc & 0xffffffff;
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EDX = tsc >> 32;
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CLOCK_CYCLES(1);
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#ifdef USE_DYNAREC
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if (cpu_use_dynarec)
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update_tsc();
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#endif
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return 0;
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}
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static int
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opRDPMC(uint32_t fetchdat)
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{
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if (ECX > 1 || (!(cr4 & CR4_PCE) && (cr0 & 1) && CPL)) {
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x86gpf("RDPMC not allowed", 0);
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return 1;
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}
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EAX = EDX = 0;
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CLOCK_CYCLES(1);
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return 0;
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}
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