From b2d523acde93862fd28adcae51b9f15536d60b28 Mon Sep 17 00:00:00 2001
From: yenatch <yenatch@gmail.com>
Date: Sat, 1 Feb 2014 20:50:39 -0500
Subject: [PATCH] rgbasm: Evaluate BANK() arguments to verify they exist.

Symbols are created when using a label in the wild, even if they aren't defined. Solely using a symbol as an argument to BANK() skips this, so the symbol is never created.

This evaluates the argument instead of trying to find a symbol. This way, symbols that don't exist are created when passed into BANK().
---
 src/asm/rpn.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/src/asm/rpn.c b/src/asm/rpn.c
index e7c7f9e7..a30cbdac 100644
--- a/src/asm/rpn.c
+++ b/src/asm/rpn.c
@@ -149,14 +149,11 @@ void
 rpn_Bank(struct Expression * expr, char *tzSym)
 {
 	if (!sym_isConstant(tzSym)) {
-		struct sSymbol *psym;
-
 		rpn_Reset(expr);
 
-		psym = sym_FindSymbol(tzSym);
-		if (nPass == 2 && psym == NULL) {
-			yyerror("'%s' not defined", tzSym);
-		}
+		/* Check that the symbol exists by evaluating and discarding the value. */
+		sym_GetValue(tzSym);
+
 		expr->isReloc = 1;
 		pushbyte(expr, RPN_BANK);
 		while (*tzSym)