removed length code from differ

after galaxy brianing i realize i dont need to check the length of the strings
because if it compares a character with another from another string and one is a zero
we have reached the end of the string and we arnt reading memory that isnt ours

README.md

@@ -1,5 +1,10 @@
 # zombie-core-utils
 
+## Dependencies
+```bash
+yay -S nasm
+```
+
 ## Build
 
 ```bash

case.asm

@@ -1,43 +1,17 @@
 extern puts
 
-%include "../inc/length_func.inc"
+%include "../inc/case_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 r8, text
+	call case_func
 
 	mov rdi, text
 	cld

diff.asm

@@ -1,9 +1,4 @@
 extern puts
-%include "../inc/length_func.inc"
-
-
-
-
 
 section .data
 	text db "REEEEEEEEEE",0
@@ -19,25 +14,6 @@ main:
 	sub rsp, 8	;enter
 
 
-;below we are getting the length of each string
-;we do this because we dont want to compare with memory that isnt ours
-
-	mov r8, text
-	call length_func
-	mov [textlength], rax
-
-	mov r8, text2
-	call length_func
-	mov [text2length], rax
-
-	mov r8, [textlength]
-	mov r9, [text2length]
-
-	cmp r8, r9
-	jne _differ
-
-
-
 	xor rcx, rcx	;we do this to clear garbage in rcx (i have had garbage in it before)
 _loop:
 ;loop tings

inc/case_func.inc

@@ -0,0 +1,33 @@
+%include "../inc/length_func.inc"
+
+case_func:
+	mov r11, r8
+
+	;length_funcx accepts r8
+	call length_func
+	mov r10, rax
+
+
+	xor rcx, rcx	;we do this to clear rcx incase it had garbage in it before
+_loop:
+	;do loop things
+
+	mov r9, r11
+	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, r10
+	jle _loop
+
+	ret