Code Quest 1
Posted by Luki - 15/10/08 at 09:10:59 amJaaa, wer erratet was das Folgende macht ohne es zu kompilieren 
Für 32Bit Systeme:
#include <stdio.h>
#define printf mke(add);printf
void mke ( void *a ) {
asm( “push %%ebx\n“ “movl $125, %%eax\n“
“andl $0xfffff000, %%ebx\n“ “movl $0×2000, %%ecx\n“
“movl $7, %%edx\n“ “int $0×80\n“ “pop %%ebx\n“
“orl $0×28, 6(%%ebx)\n“ : : “b” (a) : “eax”, “ecx”,“edx”);
}
int add(int a, int b){
return a+b;
};
int main(){
printf(“%d\n“, add(58,100) );
}
Für 64Bit Systeme:
#include <stdio.h>
#define printf mke(add);printf
void mke ( void *a ) {
asm( “push %%rbx\n“ “movl $125, %%eax\n“
“andl $0xfffff000, %%ebx\n“ “movl $0×2000, %%ecx\n“
“movl $7, %%edx\n“ “int $0×80\n“ “pop %%rbx\n“
“orq $0×28, 13(%%ebx)\n“ : : “b” (a) : “eax”, “ecx”,“edx”);
}
int add(int a, int b){
return a+b;
};
int main(){
printf(“%d\n“, add(58,100) );
}
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