main.c


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#include <stdio.h>

#if !defined(NDEBUG)
    #define TRACE(MSG) \
        fprintf(stderr, "%s\n", #MSG)
#else
    #define TRACE(MSG)
#endif

int main(int argc, char *argv[]) {
    TRACE(pre assembly);
    __asm__("imul %%eax, %%eax"
            :
            :
            :
            );
    TRACE(post assembly);
    return 0;
}

/* https://www.ibiblio.org/gferg/ldp/GCC-Inline-Assembly-HOWTO.html */