I can print character in label that in section .data But I can't print character use stack address
section .data
break db "a"
section .text
global _start
_start:
mov rax, qword 'a'
push rax
; push 'a' to stack
mov rax,4
mov rbx,1
; get stack top pointer and mov to rcx register
mov rcx,rsp
; If replace rsp with label <break> that can print newlines character
; mov rcx,break
mov rdx,1
int 80h
pop rax
call quit
quit:
mov rbx, 0
mov rax, 1
int 80h
ret
console>
not print anything
If replace rsp with label that can print newlines
; mov rcx, rsp
mov rcx, break
console>a#
print one character
Makefile
.PHONY: test
test:
nasm -f elf64 test.asm
ld -s -o test test.o
./test
.PHONY: test_debug
test_debug:
nasm -f elf64 -F dwarf -g test.asm
ld -g -o test test.o
gdb test
