gistfile1.txt

/* C code */
int add(int x, int y) {
    return x+y;
}

void caller() {
    int a = add(3, 4);
}


/* x86 assembly */
caller:
	# Prelude
	pushl	%ebp
	movl	%esp, %ebp
	subl	$16, %esp

    # Push arguments onto the stack
	pushl	$4
	pushl	$3

    # Call `add` 
	call	add

    # Pop the two arguments
	addl	$8, %esp
	
	...
  
/* amd64 assembly */
caller:
	# Prelude
	pushq	%rbp
	movq	%rsp, %rbp
	subq	$16, %rsp

    # Put arguments in registers
	movl	$4, %esi
	movl	$3, %edi

    # Invoke `add` 
	call	add

    ...