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Matthew Hiles
40 lines
527 B
ArmAsm
40 lines
527 B
ArmAsm
.section .text
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.global asmPause
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asmPause:
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pause
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ret
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.global asmReadRdtsc
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asmReadRdtsc:
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rdtsc
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shlq $0x20, %rdx
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orq %rdx, %rax
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ret
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.global asmCpuid
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asmCpuid:
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pushq %rbx
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mov %ecx, %eax
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pushq %rax
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pushq %rdx
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cpuid
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test %r9, %r9
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jz .SkipEcx
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mov %ecx, (%r9)
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.SkipEcx:
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popq %rcx
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jrcxz .SkipEax
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mov %eax, (%rcx)
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.SkipEax:
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mov %r8, %rcx
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jrcxz .SkipEbx
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mov %ebx, (%rcx)
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.SkipEbx:
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popq %rax
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popq %rbx
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ret
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