variable support cleanup

src/basic/engine_runtime/is_end_of_statement.s

@@ -0,0 +1,39 @@
+// #LAYOUT# STD *       #TAKE
+// #LAYOUT# *   BASIC_0 #TAKE
+// #LAYOUT# *   *       #IGNORE
+
+//
+// Check for end of statement, sets Carry if so. Injests all spaces.
+//
+
+
+is_end_of_statement:
+
+	jsr fetch_character_skip_spaces
+
+	cmp #$00
+	beq !+
+	cmp #$3A
+	beq !+
+
+	// Not end of statement
+
+#if !HAS_OPCODES_65CE02
+	jsr unconsume_character
+#else
+	dew TXTPTR
+#endif
+
+	clc
+	rts
+!:
+	// End of statement
+
+#if !HAS_OPCODES_65CE02
+	jsr unconsume_character
+#else
+	dew TXTPTR
+#endif
+
+	sec
+	rts