rectangles work

source/features/cli.asm

@@ -6,12 +6,12 @@ os_start_cli:
 	mov si, prompt
 	call os_print_string
 
+	mov ax, 20
+
 	mov di, user_input
 
 	call os_display_input
 
-	popa
-	ret
 
 ; ------------------------------------------------
 
@@ -26,21 +26,53 @@ os_read_cli:
 	mov di, help_string
 	call os_compare_strings
 	cmp cl, 1
-	je print_help_text
+	je help
+
+	mov si, user_input
+	mov di, clear_string
+	call os_compare_strings
+	cmp cl, 1
+	je clear
+	
+	mov si, user_input
+	mov di, pong_string
+	call os_compare_strings
+	cmp cl, 1
+	je pong
+
+	jmp .unkown
+
+.unkown:
+	mov si, unknown_command
+	call os_print_string
+	mov si, user_input
+	call os_print_string_nl
+	jmp .finish
 
 .finish:
+	popa
 	call os_start_cli
 
-print_help_text:
+clear:
+	call os_set_text_mode
+	call os_read_cli.finish
+
+help:
 	mov si, help_text
 	call os_print_string_nl
 	call os_read_cli.finish
 
+pong:
+	call game_pong
+	call os_read_cli.finish
 
-user_input times 20 db 0
-prompt db 'CrawOS: ', 0
-help_string db 'HELP', 0
-help_text db 'This is CrawOS, type "HELP" for help', 0
-command_result_text db 'You typed: ', 0
-true db 'TRUE', 0
-false db 'FALSE', 0
+section .data
+	user_input times 20 db 0
+	prompt_length db 20
+	prompt db 'CrawOS: ', 0
+	help_string db 'HELP', 0
+	clear_string db 'CLEAR', 0
+	pong_string db 'PONG', 0
+	help_text db 'This is CrawOS, type "HELP" for help, "CLEAR" to clear the screen', 0
+	command_result_text db 'You typed: ', 0
+	unknown_command db 'Error: Unkown Command.. ', 0