zombie-core-utils/case.asm

extern puts

%include "../inc/length_func.inc"

section .data
	text db "rEEEeee!EEeeeEeEEeE!EEEEEeEEE$eeeEE)EEeEeEEeeeEeEEEEEeeeEeeEeeEeeeeeEeEeEeeE",0
	textlength db 0
section .text
	global main

main:
	sub rsp, 8	;enter

	mov r8, text 	;get textlength
	call length_func
	mov [textlength], rax


	xor rcx, rcx	;we do this to clear rcx incase it had garbage in it before
_loop:
	;do loop things

	mov r9, text
	add r9, rcx

	mov r8b, [r9]	;this block here makes sure that our character is a capital letter and if its not a capital letter do nothing and return
	cmp r8b, 90
	ja _endloop
	cmp r8b, 65
	jb _endloop

	add r8b, 32	;make the letter capital
	mov [r9], r8b

_endloop:
	;end loop
	inc rcx
	cmp rcx, [textlength]
	jle _loop


	mov rdi, text
	cld
	call puts	;this is the puts way of printing a string

_end:
	add rsp, 8	;exit
	ret