[Solved] CS 3844-Homework #2

Homework #2 Convert C to Assembly

CS 3844 Section 0B1,

Given this C program:

#include <stdio.h>

int main(int argc, char *argv[]) {

int i;

printf(Hex Dec Oct Ch
);

for (i=32; i<256; i++) {

printf( %2x %3d %3o %c
, i, i, i, i);

}

}

Output should look like this (from both the C program above and your Assembly version):

Convert it to Assembly (inside C). You must use Visual Studio in the VDI. If you run it on Linux, characters 128 to 255 wont show up.

#include <stdio.h>

#include <stdlib.h>

int main(int argc, char *argv[]) {

char *hdr = Hex Dec Oct Ch
;

char *msg = %3x %3d %3o %c
;

__asm {

TBD

}

system(pause);

}

Replace the TBD with two parts: a loop on EAX from 32 to 255, and a function. You must do a CALL to your function and RET to return. And you must pass in the loop variable to the function using the EAX register.

Hint: Use the command call printf to do the two prints. It expects all the parameters on the Stack. What order do the parameters need to be to printf?