sfl-examples/slide-examples/assembly/ex05.asm

29 lines
663 B
NASM
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2023-12-14 14:12:51 +01:00
bits 64
SECTION .data
; empty
SECTION .text
global _start
_start:
%include "header.asm.inc"
mov eax, 0x00000001 ; +1
mov ebx, 0x00000005 ; +5
add eax, ebx ; eax = eax + ebx
sub eax, ebx ; eax = eax - ebx
add eax, 0x42 ; eax += 42
; integer over-/underflows
mov eax, 0x0 ; eax = 0
sub eax, 1 ; eax -= 1: eax = 0xFFFFFFFF
mov eax, 0xFFFFFFFF ; eax = -1
add eax, 1 ; eax += 1: eax = 0x00000000
mov eax, 0x0
inc eax ; eax++
dec eax ; eax--
%include "sysexit.asm.inc"