adapted to Kick Assembler, some documentation update

c64/basic/cmd_sys.s

@@ -1,23 +1,23 @@
 cmd_sys:
 	
 	jsr basic_end_of_statement_check
-	bcc +
+	bcc !+
 
-	;; SYS requires an argument
-	jmp do_SYNTAX_ERROR
+	// SYS requires an argument
+	jmp do_SYNTAX_error
 	
-*
+!:
 	jsr basic_parse_line_number
 
-	;; setup call
-	lda #$4C ;JMP
+	// setup call
+	lda #$4C // JMP opcode
 	sta USRPOK
 	lda basic_line_number+0
 	sta USRADD+0
 	lda basic_line_number+1
 	sta USRADD+1
 	
-	;; Setup the register values
+	// Setup the register values
 	lda SPREG
 	pha
 	ldy SYREG
@@ -25,7 +25,7 @@ cmd_sys:
 	lda SAREG
 	plp
 
-	;; Call the routine.
+	// Call the routine.
 	jsr USRPOK
 	
 	jmp basic_execute_statement