Please write an x86 MASM assembly program implementing the following (I\'m using
ID: 3588625 • Letter: P
Question
Please write an x86 MASM assembly program implementing the following (I'm using visual studio 2015):
Requirements 1. (7 points) Implement the following expression in assembly language: Assume that vall, val2, and val3 are 8-bit integer variables Initialize vall with 12, val2 with 9, and val3 with 2 -You are only allowed to use 16-bit registers to hold intermediate results, whenever needed. - Use the debugger to verify your answer. ubmit the following: Use movzx, movzx, or neg instructions whenever needed. o S Lastnamel.asmExplanation / Answer
section .data
val1 db 12
val2 db 9
val3 db 2
section .text
global _start ;must be declared for using gcc
_start: ;tell linker entry point
mov ax,[val1] ;value in val1 into ax
mov cx,[val3] ;value in val3 into cx
neg cx ; -val3
add cx,ax ; -val3+val1
mov bx,[val2] ;value in val2 into bx
neg bx ; - val2
mov dx,7 ;dc = 7
add bx,dx ; -val2 + 7
sub bx,cx ; -val2 + 7 - (-val3+val1) INTO bx
mov eax, 1 ;system call number (sys_exit)
int 0x80 ;call kernel