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22 lines
460 B
ArmAsm
22 lines
460 B
ArmAsm
/* https://cirosantilli.com/linux-kernel-module-cheat#userland-assembly
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*
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* Compare two numbers and set the flags register.
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*
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* `cmp X, Y` does `X - Y` and ignores the exact result, but sets
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* all flags that would be set on the subtraction, just like SUB does.
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*/
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#include <lkmc.h>
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LKMC_PROLOGUE
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/* 2 == 2 */
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mov $2, %rax
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cmp $2, %rax
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LKMC_ASSERT(je)
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/* 2 > 1 */
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mov $2, %rax
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cmp $1, %rax
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LKMC_ASSERT(ja)
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LKMC_EPILOGUE
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