36 lines
788 B
C
36 lines
788 B
C
#include <stdio.h>
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#include <intrin.h>
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#pragma intrinsic(_ReturnAddress)
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char* next_instruction_address(void) { return (char*)_ReturnAddress(); }
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int test(
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char* (*_next_instruction_address) (void)
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) {
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char* p_begin = _next_instruction_address() + 13;
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begin:;
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int a = 2;
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int b = 2;
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char* p_end = _next_instruction_address() + 13;
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end:;
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char* save_p_end = p_end;
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char* save_p_begin = p_begin;
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__asm {
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lea eax, begin
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mov p_begin, eax
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lea eax, end
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mov p_end, eax
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}
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printf("%lu=%lu\n%lu=%lu\n",
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(size_t)save_p_end, (size_t)p_end,
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(size_t)save_p_begin, (size_t)p_begin);
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return a + b;
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}
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int main(void) {
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test(next_instruction_address);
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return 0;
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} |