ED: Gotten l (list) working, need to work more on d (delete) as there's a bug with deleting lines that are not line 1.

source/kernel/features/cli.asm

@@ -1,5 +1,6 @@
 os_start_cli:
 	pusha
+
 	
 	call os_print_newline
 
@@ -67,14 +68,14 @@ os_read_cli:
 	call os_compare_strings
 	cmp cl, 1
 	je .ls
-
-    ; ED
+	
+    ;ED 
 	mov si, user_input
 	mov di, ed_string
 	call os_compare_strings
 	cmp cl, 1
 	je .ed
-	
+
 	jmp .unkown
 
 .unkown:
@@ -85,6 +86,11 @@ os_read_cli:
 	jmp .finish
 
 .finish:
+	; Clear the user input
+	mov al, 0
+	mov cx, 20
+	mov di,user_input 
+	repe stosb
 	popa
 	call os_start_cli
 

source/kernel/features/disk.asm

@@ -171,7 +171,7 @@ disk_clear_output_buffer:
 ; OUT
 ; data_buffer: file contents
 ; TODO use predefined data for calculations
-; carry flag: set if failed to load file
+; CX = 0 if failed to load
 disk_load_file:
    pusha
    call string_length ; cl = string length
@@ -235,10 +235,11 @@ disk_load_file:
    jmp .done_fail
 .done_fail:
 	popa
-	stc
+	mov bx, 1
 	ret
 .done:
    popa
+	xor bx,bx
    ret
 
 ; Write data to file

source/kernel/features/keyboard.asm

@@ -28,6 +28,8 @@ keyboard_check_key:
 ; IN:
 ; AX = output address
 ; BX = max length
+; OUT:
+; BX = 1 if escape is pressed
 keyboard_display_input:
 	pusha
 	mov di, ax
@@ -55,14 +57,15 @@ keyboard_display_input:
 		jmp .check_key_pressed
 
 	.esc_key:
-		stc
 		popa
+		mov bx, 1
 		ret
 
 	.enter_key:
 		mov al, 0
 		stosb
 		popa
+		xor bx,bx
 		ret ; Return to the parent function (whatever that may be)
 
 	.backspace:

source/kernel/features/strings.asm

@@ -106,39 +106,42 @@ string_join:
 		ret
 
 ; ------------------------------------------------------------------------
-; TODO
 ; Converts a string to an integer
 ; IN: SI = string location (max 5 chars, up to '65536')
-; OUT: AX = number
+; OUT: AX = number, DX = length of int string
 string_cast_to_int:
-	pusha
+	push cx
+	push bx
+	push dx
 	xor cx,cx
 	.loop:
 		xor ax,ax
 		lodsb
 
-		cmp al, 30h
+		; Exit if the character is not a number
+		cmp al,'0'
 		jl .finish
-		cmp al, 39h
+		cmp al,'9'
 		jg .finish
-
-		sub al, 30h
+		
+		sub al, '0'
 		mov bx, ax
+
 		mov ax, 10
 		mul cx ; Multiple the current value by 10
 		add ax, bx ; Then add the new digit
 		mov cx, ax
 		jmp .loop
 	.finish:
-		mov [int_tmp], cx
-		popa
-		mov ax, [int_tmp]
+		mov ax,cx
+		pop dx
+		pop bx
+		pop cx
 		ret
 
 ; ------------------------------------------------------------------------
 ; IN:  AX = integer (unsigned)
 ; OUT: AX -> null-terminated string
-
 string_cast_from_int:
 	pusha
 	cld ; Write backwards

source/kernel/features/text.asm

@@ -55,10 +55,16 @@ text_print_raw:
 		je .space
 		cmp al, 0Ah	; When there's an NL or CR, do both, linux encodes files only with NL
 		je .new_line
+		cmp al, 09h ; TAB
+		je .tab
 		cmp al, 0Dh
 		je .repeat
 		int 10h
 		jmp .repeat
+	.tab:
+		mov al, ' '
+		int 10h
+		jmp .repeat
 	.space:
 		mov al, 20h
 		int 10h
@@ -68,9 +74,6 @@ text_print_raw:
 		int 10h
 		mov al, 0Dh
 		int 10h
-		push ax
-		call os_read_input ; wait until key is pressed until it prints the next line
-		pop ax
 		jmp .repeat
 	.finish:
 		popa
@@ -132,6 +135,15 @@ os_set_text_mode:
 	mov dh, 0
 	mov dl, 0
 	int 10h
+
+text_newline:
+	pusha
+	mov ax,0E0Ah
+	int 10h
+	mov al,0Dh
+	int 10h
+	popa
+	ret
 
 	popa
 	ret

source/kernel/features/utils.asm

@@ -7,7 +7,8 @@ util_cat:
 	add si, 4   ; Move si to after 'CAT'
 
 	call disk_load_file
-	jc .done ; if file failed to load, just quit
+	cmp bx, 1
+	je .done
 
 	mov si, file_buffer
 	mov cx, [file_length]
@@ -36,7 +37,8 @@ util_basic:
 	; TODO make this more consistent to account for double spaces
 	;add si, 3 ; Move si to after 'BAS'
 	call disk_load_file
-	jc .done
+	cmp bx, 1
+	je .done
 
 	mov si, file_buffer