mirror of
https://github.com/ioacademy-jikim/debugging
synced 2025-06-08 08:26:14 +00:00
39 lines
914 B
C
39 lines
914 B
C
/* Based on reproducer done by Dejan Jevtic */
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int main (void)
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{
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#if defined(VGA_amd64)
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/* Note that small changes in the code below
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caused the bug not to be triggered anymore.
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E.g. removing the dec %%eax avoids the assert
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while this removal causes one more loop to be
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executed. */
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__asm__ __volatile__
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("mov $30, %%eax\n\t"
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"top:\n\t"
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"mov $-4, %%ebx\n\t"
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"add %%ebx, %%eax\n\t"
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"dec %%eax\n\t"
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"cmp $0x0,%%eax\n\t"
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"jne top\n\t"
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"mov $60, %%eax\n\t"
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"mov $0, %%rdi\n\t"
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"syscall\n\t"
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: : : "eax", "ebx", "rdi"
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);
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#elif defined(VGA_mips32) || defined(VGA_mips64)
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__asm__ __volatile__
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("li $t0, 42\n\t"
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"top:\n\t"
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"li $t1, -4\n\t"
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"addu $t0, $t0, $t1\n\t"
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"li $t2, -2\n\t"
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"addu $t0, $t0, $t2\n\t"
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"addiu $t0, $t0, -1\n\t"
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"bnez $t0, top\n\t"
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"nop\n\t"
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: : : "t0", "t1"
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);
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#endif
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return 0;
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}
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