Detecting CPU Speed: Difference between revisions
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Content added Content deleted
("What is CPU speed") |
m (→Working Example Code: fixed a bug where the code did not run when TSC was detected ('jnz detect_end' should have been 'jz detect_end')) |
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cpuid |
cpuid |
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test edx,byte 0x10 ; test bit #4. Do we have TSC ? |
test edx,byte 0x10 ; test bit #4. Do we have TSC ? |
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jz detect_end ; no ?, go to detect_end |
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;wait until the timer interrupt has been called. |
;wait until the timer interrupt has been called. |
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mov ebx, ~[irq0_count] |
mov ebx, ~[irq0_count] |
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