Don't silently truncate banks greater than 255 to 8 bits.

Fixed as follows: if the symbol doesn't exist, don't add it to the relocation
table. The functions calling createpatch will nevertheless increment PC
correctly.

Test case:

SECTION "CODE", CODE
glob:
        jp .loc

; from test/asm/banknoexist.asm:
SECTION "sec", ROM0
        db BANK(noexist)

See also issue #68

LICENSE

@@ -21,5 +21,8 @@ under the ISC license; see the source file for the text of the license.
 extern/err.c is derived from the Musl C library, http://www.musl-libc.org,
 and is released under the MIT license.
 
+extern/reallocarray.c is derived from the OpenBSD Project,
+http://www.openbsd.org, and is released under the ISC license.
+
 extern/strl.c is derived from the OpenBSD Project, http://www.openbsd.org,
 and is released under the BSD license.

Makefile

@@ -1,6 +1,6 @@
 .POSIX:
 
-WARNFLAGS =	-Wall -Werror=implicit-int
+WARNFLAGS =	-Wall -Werror=implicit
 REALCFLAGS =	${CFLAGS} ${WARNFLAGS} -Iinclude -g \
 		-std=c99 -D_POSIX_C_SOURCE=200809L
 
@@ -10,13 +10,7 @@ BINPREFIX =	${PREFIX}/bin
 MANPREFIX =	${PREFIX}/man
 Q =		@
 
-yacc_pre := \
-	src/asm/yaccprt1.y\
-	src/asm/yaccprt2.y\
-	src/asm/yaccprt3.y\
-	src/asm/yaccprt4.y
-
-rgbasm_obj := \
+rgbasm_obj = \
 	src/asm/asmy.o \
 	src/asm/charmap.o \
 	src/asm/fstack.o \
@@ -29,10 +23,11 @@ rgbasm_obj := \
 	src/asm/symbol.o \
 	src/asm/locallex.o \
 	src/extern/err.o \
+	src/extern/reallocarray.o \
 	src/extern/strlcpy.o \
 	src/extern/strlcat.o
 
-rgblink_obj := \
+rgblink_obj = \
 	src/link/assign.o \
 	src/link/library.o \
 	src/link/main.o \
@@ -43,7 +38,7 @@ rgblink_obj := \
 	src/link/symbol.o \
 	src/extern/err.o
 
-rgbfix_obj := \
+rgbfix_obj = \
 	src/fix/main.o \
 	src/extern/err.o
 
@@ -91,8 +86,7 @@ src/asm/asmy.h: src/asm/asmy.c
 # install instructions instead.
 mingw:
 	$Qenv PATH=/usr/local/mingw32/bin:/bin:/usr/bin:/usr/local/bin \
-		make CC=gcc CFLAGS="-I/usr/local/mingw32/include \
-			-D__progname=\\\"\\\" \
+		make WARNFLAGS= CC=gcc CFLAGS="-I/usr/local/mingw32/include \
 			${CFLAGS}"
 	$Qmv rgbasm rgbasm.exe
 	$Qmv rgblink rgblink.exe

README

@@ -53,6 +53,6 @@ this variable. Defaults to @.
   Installing RGBDS (Windows)
 ============================
 
-Windows builds are available here: http://anthony.bentley.name/rgbds/
+Windows builds are available here: https://github.com/bentley/rgbds/releases
 
 Copy the .exe files to C:\Windows\ or similar.

include/asm/asm.h

@@ -6,16 +6,17 @@
  *
  */
 
-#ifndef ASMOTOR_ASM_ASM_H
-#define ASMOTOR_ASM_ASM_H
+#ifndef RGBDS_ASM_ASM_H
+#define RGBDS_ASM_ASM_H
 
-#include <stdlib.h>
+#include <stdbool.h>
 #include <stdio.h>
+#include <stdlib.h>
 
-#include "asm/types.h"
+#include "types.h"
 #include "asm/symbol.h"
 
-#include "localasm.h"
+#include "asm/localasm.h"
 
 extern SLONG nLineNo;
 extern ULONG nTotalLines;
@@ -26,9 +27,9 @@ extern char tzCurrentFileName[_MAX_PATH + 1];
 extern struct Section *pCurrentSection;
 extern struct sSymbol *tHashedSymbols[HASHSIZE];
 extern struct sSymbol *pPCSymbol;
-extern UBYTE oDontExpandStrings;
+extern bool oDontExpandStrings;
 
-#define MAXMACROARGS	9
+#define MAXMACROARGS	256
 #define MAXINCPATHS		16
 
 #endif	/* //       ASM_H */

include/asm/charmap.h

@@ -1,5 +1,5 @@
-#ifndef ASMOTOR_ASM_CHARMAP_H
-#define ASMOTOR_ASM_CHARMAP_H
+#ifndef RGBDS_ASM_CHARMAP_H
+#define RGBDS_ASM_CHARMAP_H
 
 #define MAXCHARMAPS	512
 #define CHARMAPLENGTH	8

include/asm/fstack.h

@@ -6,13 +6,13 @@
  *
  */
 
-#ifndef ASMOTOR_ASM_FSTACK_H
-#define ASMOTOR_ASM_FSTACK_H
+#ifndef RGBDS_ASM_FSTACK_H
+#define RGBDS_ASM_FSTACK_H
 
 #include <stdio.h>
 
 #include "asm/asm.h"
-#include "asm/types.h"
+#include "types.h"
 #include "asm/lexer.h"
 
 struct sContext {

include/asm/lexer.h

@@ -1,9 +1,9 @@
-#ifndef ASMOTOR_ASM_LEXER_H
-#define ASMOTOR_ASM_LEXER_H
+#ifndef RGBDS_ASM_LEXER_H
+#define RGBDS_ASM_LEXER_H
 
 #include <stdio.h>
 
-#include "asm/types.h"
+#include "types.h"
 
 #define LEXHASHSIZE (1 << 11)
 #define MAXSTRLEN 255

include/asm/main.h

@@ -1,5 +1,5 @@
-#ifndef	ASMOTOR_MAIN_H
-#define	ASMOTOR_MAIN_H
+#ifndef	RGBDS_MAIN_H
+#define	RGBDS_MAIN_H
 
 #include <stdbool.h>
 
@@ -8,6 +8,7 @@ struct sOptions {
 	char binary[2];
 	SLONG fillchar;
 	bool verbose;
+	bool haltnop;
 	    //-1 == random
 };
 

include/asm/mylink.h

@@ -1,5 +1,5 @@
-#ifndef ASMOTOR_ASM_LINK_H
-#define ASMOTOR_ASM_LINK_H
+#ifndef RGBDS_ASM_LINK_H
+#define RGBDS_ASM_LINK_H
 
 /* RGB0 .obj format:
  *

include/asm/mymath.h

@@ -1,7 +1,7 @@
-#ifndef ASMOTOR_ASM_MATH_H
-#define ASMOTOR_ASM_MATH_H
+#ifndef RGBDS_ASM_MATH_H
+#define RGBDS_ASM_MATH_H
 
-#include "asm/types.h"
+#include "types.h"
 
 void math_DefinePI(void);
 void math_Print(SLONG i);

include/asm/output.h

@@ -1,8 +1,8 @@
-#ifndef ASMOTOR_ASM_OUTPUT_H
-#define ASMOTOR_ASM_OUTPUT_H
+#ifndef RGBDS_ASM_OUTPUT_H
+#define RGBDS_ASM_OUTPUT_H
 
 #include "asm/rpn.h"
-#include "asm/types.h"
+#include "types.h"
 
 struct Section {
 	char *pzName;

include/asm/rpn.h

@@ -1,5 +1,5 @@
-#ifndef ASMOTOR_ASM_RPN_H
-#define ASMOTOR_ASM_RPN_H
+#ifndef RGBDS_ASM_RPN_H
+#define RGBDS_ASM_RPN_H
 
 struct Expression {
 	SLONG nVal;

include/asm/symbol.h

@@ -1,7 +1,7 @@
-#ifndef ASMOTOR_SYMBOL_H
-#define ASMOTOR_SYMBOL_H
+#ifndef RGBDS_SYMBOL_H
+#define RGBDS_SYMBOL_H
 
-#include "asm/types.h"
+#include "types.h"
 
 #define HASHSIZE (1 << 16)
 #define MAXSYMLEN 256

include/asm/types.h

@@ -1,15 +0,0 @@
-#ifndef ASMOTOR_ASM_TYPES_H
-#define ASMOTOR_ASM_TYPES_H
-
-#ifndef _MAX_PATH
-#define	_MAX_PATH	512
-#endif
-
-typedef unsigned char UBYTE;
-typedef signed char SBYTE;
-typedef unsigned short UWORD;
-typedef signed short SWORD;
-typedef unsigned long ULONG;
-typedef signed long SLONG;
-
-#endif

include/extern/err.h

@@ -1,26 +1,3 @@
-/*
- * Copyright © 2005-2013 Rich Felker, et al.
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
- * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
 #ifndef EXTERN_ERR_H
 #define EXTERN_ERR_H
 
@@ -29,7 +6,7 @@
 #else
 
 #include <stdarg.h>
-#include "stdnoreturn.h"
+#include "extern/stdnoreturn.h"
 
 #define warn rgbds_warn
 #define vwarn rgbds_vwarn
@@ -41,10 +18,6 @@
 #define errx rgbds_errx
 #define verrx rgbds_verrx
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 void warn(const char *, ...);
 void vwarn(const char *, va_list);
 void warnx(const char *, ...);
@@ -55,10 +28,6 @@ noreturn void verr(int, const char *, va_list);
 noreturn void errx(int, const char *, ...);
 noreturn void verrx(int, const char *, va_list);
 
-#ifdef __cplusplus
-}
-#endif
-
 #endif
 
 #endif

include/extern/reallocarray.h

@@ -0,0 +1,14 @@
+#ifndef EXTERN_REALLOCARRAY_H
+#define EXTERN_REALLOCARRAY_H
+
+#ifdef REALLOCARRAY_IN_LIBC
+#include <stdlib.h>
+#else
+
+#define reallocarray rgbds_reallocarray
+
+void *reallocarray(void *, size_t, size_t);
+
+#endif
+
+#endif

include/extern/stdnoreturn.h

@@ -1,16 +1,16 @@
 #if __STDC_VERSION__ >= 201112L
-    // C11 or newer
+    /* C11 or newer */
     #define noreturn _Noreturn
 #elif __cplusplus >= 201103L
-    // C++11 or newer
+    /* C++11 or newer */
     #define noreturn [[noreturn]]
 #elif __GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ >= 5))
-    // GCC 2.5 or newer
+    /* GCC 2.5 or newer */
     #define noreturn __attribute__ ((noreturn))
 #elif _MSC_VER >= 1310
-    // MS Visual Studio 2003/.NET Framework 1.1 or newer
+    /* MS Visual Studio 2003/.NET Framework 1.1 or newer */
     #define noreturn _declspec( noreturn)
 #else
-    // unsupported, but no need to throw a fit
+    /* unsupported, but no need to throw a fit */
     #define noreturn 
 #endif

include/link/assign.h

@@ -1,7 +1,7 @@
-#ifndef ASMOTOR_LINK_ASSIGN_H
-#define ASMOTOR_LINK_ASSIGN_H
+#ifndef RGBDS_LINK_ASSIGN_H
+#define RGBDS_LINK_ASSIGN_H
 
-#include "link/types.h"
+#include "types.h"
 
 enum eBankDefine {
 	BANK_ROM0 = 0,

include/link/library.h

@@ -1,5 +1,5 @@
-#ifndef	ASMOTOR_LINK_LIBRARY_H
-#define	ASMOTOR_LINK_LIBRARY_H
+#ifndef	RGBDS_LINK_LIBRARY_H
+#define	RGBDS_LINK_LIBRARY_H
 
 extern void AddNeededModules(void);
 

include/link/main.h

@@ -1,7 +1,7 @@
-#ifndef ASMOTOR_LINK_MAIN_H
-#define ASMOTOR_LINK_MAIN_H
+#ifndef RGBDS_LINK_MAIN_H
+#define RGBDS_LINK_MAIN_H
 
-#include "link/types.h"
+#include "types.h"
 
 extern SLONG fillchar;
 extern char smartlinkstartsymbol[256];

include/link/mapfile.h

@@ -1,5 +1,5 @@
-#ifndef	ASMOTOR_LINK_MAPFILE_H
-#define	ASMOTOR_LINK_MAPFILE_H
+#ifndef	RGBDS_LINK_MAPFILE_H
+#define	RGBDS_LINK_MAPFILE_H
 
 extern void SetMapfileName(char *name);
 extern void SetSymfileName(char *name);

include/link/mylink.h

@@ -1,11 +1,11 @@
-#ifndef ASMOTOR_LINK_LINK_H
-#define ASMOTOR_LINK_LINK_H
+#ifndef RGBDS_LINK_LINK_H
+#define RGBDS_LINK_LINK_H
 
 #ifndef _MAX_PATH
 #define _MAX_PATH	512
 #endif
 
-#include "link/types.h"
+#include "types.h"
 
 extern SLONG options;
 #define OPT_SMALL	0x01

include/link/object.h

@@ -1,5 +1,5 @@
-#ifndef	ASMOTOR_LINK_OBJECT_H
-#define	ASMOTOR_LINK_OBJECT_H
+#ifndef	RGBDS_LINK_OBJECT_H
+#define	RGBDS_LINK_OBJECT_H
 
 extern void obj_Readfile(char *tzObjectfile);
 

include/link/output.h

@@ -1,5 +1,5 @@
-#ifndef	ASMOTOR_LINK_OUTPUT_H
-#define	ASMOTOR_LINK_OUTPUT_H
+#ifndef	RGBDS_LINK_OUTPUT_H
+#define	RGBDS_LINK_OUTPUT_H
 
 void out_Setname(char *tzOutputfile);
 void Output(void);

include/link/patch.h

@@ -1,7 +1,7 @@
-#ifndef ASMOTOR_LINK_PATCH_H
-#define ASMOTOR_LINK_PATCH_H
+#ifndef RGBDS_LINK_PATCH_H
+#define RGBDS_LINK_PATCH_H
 
-#include "link/types.h"
+#include "types.h"
 
 void Patch(void);
 extern SLONG nPC;

include/link/symbol.h

@@ -1,10 +1,10 @@
-#ifndef ASMOTOR_LINK_SYMBOL_H
-#define ASMOTOR_LINK_SYMBOL_H
+#ifndef RGBDS_LINK_SYMBOL_H
+#define RGBDS_LINK_SYMBOL_H
 
-#include "link/types.h"
+#include "types.h"
 
 void sym_Init(void);
-void sym_CreateSymbol(char *tzName, SLONG nValue, SBYTE nBank);
+void sym_CreateSymbol(char *tzName, SLONG nValue, SLONG nBank);
 SLONG sym_GetValue(char *tzName);
 SLONG sym_GetBank(char *tzName);
 

include/types.h

@@ -1,5 +1,5 @@
-#ifndef ASMOTOR_LINK_TYPES_H
-#define ASMOTOR_LINK_TYPES_H
+#ifndef RGBDS_TYPES_H
+#define RGBDS_TYPES_H
 
 #ifndef _MAX_PATH
 #define	_MAX_PATH	512

src/asm/asmy.y

@@ -1,7 +1,6 @@
 %{
 #include <ctype.h>
 #include <errno.h>
-#include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -18,8 +17,6 @@
 #include "asm/main.h"
 #include "asm/lexer.h"
 
-extern bool haltnop;
-
 char	*tzNewMacro;
 ULONG	ulNewMacroSize;
 
@@ -500,73 +497,62 @@ void	if_skip_to_endc( void )
 
 %%
 
-asmfile			:	lines lastline
-;
+asmfile : lines;
 
-lastline		:	/* empty */
-				|	line
-					{ nLineNo+=1; nTotalLines+=1; }
-;
+/* Note: The lexer add '\n' at the end of the input */
+lines : /* empty */
+	| lines line '\n' {
+		nLineNo += 1;
+		nTotalLines += 1;
+	};
 
-lines			:	/* empty */
-				|	lines line '\n'
-					{ nLineNo+=1; nTotalLines+=1; }
-;
+line : label
+	| label cpu_command
+	| label macro
+	| label simple_pseudoop
+	| pseudoop;
 
-line			:	/* empty */
-				|	label
-				|	label cpu_command
-				|	label macro
-				|	label simple_pseudoop
-				|	pseudoop
-;
+label : /* empty */
+	| T_LABEL {
+		if ($1[0] == '.')
+			sym_AddLocalReloc($1);
+		else
+			sym_AddReloc($1);
+	} | T_LABEL ':' {
+		if ($1[0] == '.')
+			sym_AddLocalReloc($1);
+		else
+			sym_AddReloc($1);
+	} | T_LABEL ':' ':' {
+		sym_AddReloc($1);
+		sym_Export($1);
+	};
 
-label			:	/* empty */
-				|	T_LABEL			{	if( $1[0]=='.' )
-											sym_AddLocalReloc($1);
-										else
-											sym_AddReloc($1);
-									}
-				|	T_LABEL ':'		{	if( $1[0]=='.' )
-											sym_AddLocalReloc($1);
-										else
-											sym_AddReloc($1);
-									}
-				|	T_LABEL ':' ':'	{ sym_AddReloc($1); sym_Export($1); }
-;
+macro : T_ID {
+		yy_set_state(LEX_STATE_MACROARGS);
+	} macroargs {
+		yy_set_state(LEX_STATE_NORMAL);
 
-macro			:	T_ID
-					{
-						yy_set_state( LEX_STATE_MACROARGS );
-					}
-					macroargs
-					{
-						yy_set_state( LEX_STATE_NORMAL );
+		if (!fstk_RunMacro($1)) {
+			fatalerror("Macro '%s' not defined", $1);
+		}
+	};
 
-						if( !fstk_RunMacro($1) )
-						{
-							yyerror("Macro '%s' not defined", $1);
-						}
-					}
-;
+macroargs : /* empty */
+	| macroarg
+	| macroarg ',' macroargs;
 
-macroargs		:	/* empty */
-				|	macroarg
-				|	macroarg ',' macroargs
-;
+macroarg : T_STRING {
+		sym_AddNewMacroArg($1);
+	};
 
-macroarg 		:	T_STRING
-					{ sym_AddNewMacroArg( $1 ); }
-;
-
-pseudoop		:	equ
-				|	set
-				|	rb
-				|	rw
-				|	rl
-				|	equs
-				|	macrodef
-;
+pseudoop : equ
+	| set
+	| rb
+	| rw
+	| rl
+	| equs
+	| macrodef;
 
 simple_pseudoop	:	include
 				|	printf
@@ -596,52 +582,44 @@ simple_pseudoop	:	include
 				|	pushs
 				|	popo
 				|	pusho
-				|	opt
-;
+				|	opt;
 
-opt				:	T_POP_OPT
-					{
-						yy_set_state( LEX_STATE_MACROARGS );
-					}
-					opt_list
-					{
-						yy_set_state( LEX_STATE_NORMAL );
-					}
-;
+opt : T_POP_OPT {
+		yy_set_state(LEX_STATE_MACROARGS);
+	} opt_list {
+		yy_set_state(LEX_STATE_NORMAL);
+	};
 
-opt_list		:	opt_list_entry
-				|	opt_list_entry ',' opt_list
-;
+opt_list : opt_list_entry
+	| opt_list_entry ',' opt_list;
 
-opt_list_entry	:	T_STRING
-					{
-						opt_Parse($1);
-					}
-;
+opt_list_entry : T_STRING {
+		opt_Parse($1);
+	};
 
-popo			:	T_POP_POPO
-					{ opt_Pop(); }
-;
+popo : T_POP_POPO {
+		opt_Pop();
+	};
 
-pusho			:	T_POP_PUSHO
-					{ opt_Push(); }
-;
+pusho : T_POP_PUSHO {
+		opt_Push();
+	};
 
-pops			:	T_POP_POPS
-					{ out_PopSection(); }
-;
+pops : T_POP_POPS {
+		out_PopSection();
+	};
 
-pushs			:	T_POP_PUSHS
-					{ out_PushSection(); }
-;
+pushs : T_POP_PUSHS {
+		out_PushSection();
+	};
 
-fail			:	T_POP_FAIL string
-					{ fatalerror("%s", $2); }
-;
+fail : T_POP_FAIL string {
+		fatalerror("%s", $2);
+	};
 
-warn			:	T_POP_WARN string
-					{ yyerror("%s", $2); }
-;
+warn : T_POP_WARN string {
+		yyerror("%s", $2);
+	};
 
 shift			:	T_POP_SHIFT
 					{ sym_ShiftCurrentMacroArgs(); }
@@ -709,11 +687,11 @@ dl				:	T_POP_DL constlist_32bit
 
 purge			:	T_POP_PURGE
 					{
-						oDontExpandStrings=1;
+						oDontExpandStrings = true;
 					}
 					purge_list
 					{
-						oDontExpandStrings=0;
+						oDontExpandStrings = false;
 					}
 ;
 
@@ -955,8 +933,8 @@ relocconst		:	T_ID
 						{ rpn_UNNOT(&$$,&$2); }
 				|	T_OP_BANK '(' T_ID ')'
 						{ rpn_Bank(&$$,$3); $$.nVal = 0; }
-				|	T_OP_DEF { oDontExpandStrings=1; } '(' T_ID ')'
-						{ rpn_Number(&$$,sym_isConstDefined($4)); oDontExpandStrings=0; }
+				|	T_OP_DEF { oDontExpandStrings = true; } '(' T_ID ')'
+						{ rpn_Number(&$$,sym_isConstDefined($4)); oDontExpandStrings = false; }
 				|	T_OP_ROUND '(' const ')'			{ rpn_Number(&$$,math_Round($3)); }
 				|	T_OP_CEIL '(' const ')'			{ rpn_Number(&$$,math_Ceil($3)); }
 				|	T_OP_FLOOR '(' const ')'			{ rpn_Number(&$$,math_Floor($3)); }
@@ -1008,8 +986,16 @@ const			:	T_ID							{ $$ = sym_GetConstantValue($1); }
 				|	const T_OP_SHL const			{ $$ = $1 << $3; }
 				|	const T_OP_SHR const			{ $$ = $1 >> $3; }
 				|	const T_OP_MUL const			{ $$ = $1 * $3; }
-				|	const T_OP_DIV const			{ $$ = $1 / $3; }
-				|	const T_OP_MOD const			{ $$ = $1 % $3; }
+				|	const T_OP_DIV const			{
+	if ($3 == 0)
+		fatalerror("division by zero");
+	$$ = $1 / $3;
+	}
+				|	const T_OP_MOD const			{
+	if ($3 == 0)
+		fatalerror("division by zero");
+	$$ = $1 % $3;
+	}
 				|	T_OP_ADD const %prec NEG		{ $$ = +$2; }
 				|	T_OP_SUB const %prec NEG		{ $$ = -$2; }
 				|	T_OP_NOT const %prec NEG		{ $$ = 0xFFFFFFFF^$2; }
@@ -1025,7 +1011,7 @@ const			:	T_ID							{ $$ = sym_GetConstantValue($1); }
 				|	T_OP_ACOS '(' const ')'			{ $$ = math_ACos($3); }
 				|	T_OP_ATAN '(' const ')'			{ $$ = math_ATan($3); }
 				|	T_OP_ATAN2 '(' const ',' const ')'	{ $$ = math_ATan2($3,$5); }
-				|	T_OP_DEF { oDontExpandStrings=1; } '(' T_ID ')'	{ $$ = sym_isConstDefined($4); oDontExpandStrings=0; }
+				|	T_OP_DEF { oDontExpandStrings = true; } '(' T_ID ')'	{ $$ = sym_isConstDefined($4); oDontExpandStrings = false; }
 				|	T_OP_STRCMP '(' string ',' string ')'	{ $$ = strcmp( $3, $5 ); }
 				|	T_OP_STRIN '(' string ',' string ')'
 					{
@@ -1081,7 +1067,7 @@ section:
 				}
 			} else if ($4 == SECT_WRAMX) {
 				if ($8 >= 1 && $8 <= 7) {
-					out_NewAbsSection($2, $4, -1, $8);
+					out_NewAbsSection($2, $4, -1, $8 - 1);
 				} else {
 					yyerror("WRAMX bank value $%x out of range (1 to 7)", $8);
 				}
@@ -1118,7 +1104,7 @@ section:
 			} else if ($4 == SECT_WRAMX) {
 				if ($6 >= 0 && $6 < 0x10000) {
 					if ($11 >= 1 && $11 <= 7) {
-						out_NewAbsSection($2, $4, $6, $11);
+						out_NewAbsSection($2, $4, $6, $11 - 1);
 					} else {
 						yyerror("WRAMX bank value $%x out of range (1 to 7)", $11);
 					}
@@ -1264,7 +1250,7 @@ z80_ex			:	T_Z80_EX T_MODE_HL comma T_MODE_SP_IND
 z80_halt: T_Z80_HALT
 		{
 			out_AbsByte(0x76);
-			if (haltnop) {
+			if (CurrentOptions.haltnop) {
 				out_AbsByte(0x00);
 			}
 		}

src/asm/fstack.c

@@ -1,8 +1,5 @@
 /*
- * RGBAsm - FSTACK.C (FileStack routines)
- *
- * INCLUDES
- *
+ * FileStack routines
  */
 
 #include <errno.h>
@@ -13,7 +10,7 @@
 
 #include "asm/symbol.h"
 #include "asm/fstack.h"
-#include "asm/types.h"
+#include "types.h"
 #include "asm/main.h"
 #include "asm/lexer.h"
 #include "extern/err.h"
@@ -23,13 +20,6 @@
 #define PATH_MAX 256
 #endif
 
-/*
- * RGBAsm - FSTACK.C (FileStack routines)
- *
- * VARIABLES
- *
- */
-
 struct sContext *pFileStack;
 struct sSymbol *pCurrentMacro;
 YY_BUFFER_STATE CurrentFlexHandle;
@@ -55,12 +45,8 @@ ULONG ulMacroReturnValue;
 #define STAT_isREPTBlock	3
 
 /*
- * RGBAsm - FSTACK.C (FileStack routines)
- *
  * Context push and pop
- *
  */
-
 void 
 pushcontext(void)
 {
@@ -167,13 +153,10 @@ yywrap(void)
 {
 	return (popcontext());
 }
-/*
- * RGBAsm - FSTACK.C (FileStack routines)
- *
- * Dump the context stack to stderr
- *
- */
 
+/*
+ * Dump the context stack to stderr
+ */
 void 
 fstk_Dump(void)
 {
@@ -189,13 +172,10 @@ fstk_Dump(void)
 
 	fprintf(stderr, "%s(%ld)", tzCurrentFileName, nLineNo);
 }
-/*
- * RGBAsm - FSTACK.C (FileStack routines)
- *
- * Extra includepath stuff
- *
- */
 
+/*
+ * Extra includepath stuff
+ */
 void 
 fstk_AddIncludePath(char *s)
 {
@@ -230,13 +210,10 @@ fstk_FindFile(char *fname)
 	errno = ENOENT;
 	return NULL;
 }
-/*
- * RGBAsm - FSTACK.C (FileStack routines)
- *
- * Set up an include file for parsing
- *
- */
 
+/*
+ * Set up an include file for parsing
+ */
 void
 fstk_RunInclude(char *tzFileName)
 {
@@ -262,13 +239,10 @@ fstk_RunInclude(char *tzFileName)
 	yyunput('\n');
 	nLineNo -= 1;
 }
-/*
- * RGBAsm - FSTACK.C (FileStack routines)
- *
- * Set up a macro for parsing
- *
- */
 
+/*
+ * Set up a macro for parsing
+ */
 ULONG 
 fstk_RunMacro(char *s)
 {
@@ -281,6 +255,8 @@ fstk_RunMacro(char *s)
 		sym_UseNewMacroArgs();
 		nCurrentStatus = STAT_isMacro;
 		strcpy(tzCurrentFileName, s);
+		if (sym->pMacro == NULL)
+			return 0;
 		pCurrentMacro = sym;
 		CurrentFlexHandle =
 		    yy_scan_bytes(pCurrentMacro->pMacro,
@@ -290,13 +266,10 @@ fstk_RunMacro(char *s)
 	} else
 		return (0);
 }
-/*
- * RGBAsm - FSTACK.C (FileStack routines)
- *
- * Set up a macroargument for parsing
- *
- */
 
+/*
+ * Set up a macroargument for parsing
+ */
 void 
 fstk_RunMacroArg(SLONG s)
 {
@@ -316,13 +289,10 @@ fstk_RunMacroArg(SLONG s)
 	} else
 		fatalerror("No such macroargument");
 }
-/*
- * RGBAsm - FSTACK.C (FileStack routines)
- *
- * Set up a stringequate for parsing
- *
- */
 
+/*
+ * Set up a stringequate for parsing
+ */
 void 
 fstk_RunString(char *s)
 {
@@ -338,13 +308,10 @@ fstk_RunString(char *s)
 	} else
 		yyerror("No such string symbol '%s'", s);
 }
-/*
- * RGBAsm - FSTACK.C (FileStack routines)
- *
- * Set up a repeat block for parsing
- *
- */
 
+/*
+ * Set up a repeat block for parsing
+ */
 void 
 fstk_RunRept(ULONG count)
 {
@@ -362,13 +329,10 @@ fstk_RunRept(ULONG count)
 		yy_switch_to_buffer(CurrentFlexHandle);
 	}
 }
-/*
- * RGBAsm - FSTACK.C (FileStack routines)
- *
- * Initialize the filestack routines
- *
- */
 
+/*
+ * Initialize the filestack routines
+ */
 void
 fstk_Init(char *s)
 {

src/asm/globlex.c

@@ -7,12 +7,13 @@
 
 #include "asmy.h"
 
+#include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
 #include <string.h>
 
-UBYTE oDontExpandStrings = 0;
+bool oDontExpandStrings = false;
 SLONG nGBGfxID = -1;
 SLONG nBinaryID = -1;
 
@@ -160,7 +161,7 @@ ParseSymbol(char *src, ULONG size)
 			if (*src == '@')
 				marg = sym_FindMacroArg(-1);
 			else if (*src >= '0' && *src <= '9')
-				marg = sym_FindMacroArg(*src);
+				marg = sym_FindMacroArg(*src - '0');
 			else {
 				fatalerror("Malformed ID");
 				return (0);
@@ -184,7 +185,7 @@ ParseSymbol(char *src, ULONG size)
 
 	dest[copied] = 0;
 
-	if (oDontExpandStrings == 0 && sym_isString(dest)) {
+	if (!oDontExpandStrings && sym_isString(dest)) {
 		char *s;
 
 		yyskipbytes(size_backup);

src/asm/lexer.c

@@ -6,7 +6,7 @@
 
 #include "asm/asm.h"
 #include "asm/lexer.h"
-#include "asm/types.h"
+#include "types.h"
 #include "asm/main.h"
 #include "asm/rpn.h"
 #include "asm/fstack.h"

src/asm/main.c

@@ -1,13 +1,5 @@
-/*
- * RGBAsm - MAIN.C
- *
- * INCLUDES
- *
- */
-
 #include <math.h>
 #include <stdarg.h>
-#include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -19,18 +11,16 @@
 #include "asm/output.h"
 #include "asm/main.h"
 #include "extern/err.h"
+#include "extern/reallocarray.h"
 
 int yyparse(void);
 void setuplex(void);
 
-/*
- * RGBAsm - MAIN.C
- *
- * VARIABLES
- *
- */
+int cldefines_index;
+int cldefines_size;
+char **cldefines;
 
-bool haltnop;
+char *progname;
 
 clock_t nStartClock, nEndClock;
 SLONG nLineNo;
@@ -39,10 +29,7 @@ ULONG nTotalLines, nPass, nPC, nIFDepth, nErrors;
 extern int yydebug;
 
 /*
- * RGBAsm - MAIN.C
- *
  * Option stack
- *
  */
 
 struct sOptions DefaultOptions;
@@ -193,13 +180,49 @@ opt_Pop(void)
 	} else
 		fatalerror("No entries in the option stack");
 }
-/*
- * RGBAsm - MAIN.C
- *
- * Error handling
- *
- */
 
+void
+opt_AddDefine(char *s)
+{
+	char *value, *equals;
+	if(cldefines_index >= cldefines_size)
+	{
+		cldefines_size *= 2;
+		cldefines = reallocarray(cldefines, cldefines_size,
+		                        2 * sizeof(void *));
+		if(!cldefines)
+		{
+			fatalerror("No memory for command line defines");
+		}
+	}
+	equals = strchr(s, '=');
+	if(equals)
+	{
+		*equals = '\0';
+		value = equals + 1;
+	}
+	else
+	{
+		value = "1";
+	}
+	cldefines[cldefines_index++] = s;
+	cldefines[cldefines_index++] = value;
+}
+
+void
+opt_ParseDefines()
+{
+	int i;
+
+	for(i = 0; i < cldefines_index; i += 2)
+	{
+		sym_AddString(cldefines[i], cldefines[i + 1]);
+	}
+}
+
+/*
+ * Error handling
+ */
 void
 verror(const char *fmt, va_list args)
 {
@@ -229,26 +252,15 @@ fatalerror(const char *fmt, ...)
 	va_end(args);
 	exit(5);
 }
-/*
- * RGBAsm - MAIN.C
- *
- * Help text
- *
- */
 
-void 
-PrintUsage(void)
+static void 
+usage(void)
 {
-	printf("Usage: rgbasm [-v] [-h] [-b chars] [-g chars] [-i path] [-o outfile] [-p pad_value]\n"
-	    "              file\n");
+	printf(
+"Usage: rgbasm [-hv] [-b chars] [-Dname[=value]] [-g chars] [-i path]\n"
+"              [-o outfile] [-p pad_value] file.asm\n");
 	exit(1);
 }
-/*
- * RGBAsm - MAIN.C
- *
- * main
- *
- */
 
 int 
 main(int argc, char *argv[])
@@ -260,10 +272,18 @@ main(int argc, char *argv[])
 
 	char *tzMainfile;
 
-	haltnop = true;
+	cldefines_size = 32;
+	cldefines = reallocarray(cldefines, cldefines_size,
+	                        2 * sizeof(void *));
+	if(!cldefines)
+	{
+		fatalerror("No memory for command line defines");
+	}
 
 	if (argc == 1)
-		PrintUsage();
+		usage();
+
+	progname = argv[0];
 
 	/* yydebug=1; */
 
@@ -275,12 +295,13 @@ main(int argc, char *argv[])
 	DefaultOptions.binary[1] = '1';
 	DefaultOptions.fillchar = 0;
 	DefaultOptions.verbose = false;
+	DefaultOptions.haltnop = true;
 
 	opt_SetCurrentOptions(&DefaultOptions);
 
 	newopt = CurrentOptions;
 
-	while ((ch = getopt(argc, argv, "b:g:hi:o:p:v")) != -1) {
+	while ((ch = getopt(argc, argv, "b:D:g:hi:o:p:v")) != -1) {
 		switch (ch) {
 		case 'b':
 			if (strlen(optarg) == 2) {
@@ -291,6 +312,9 @@ main(int argc, char *argv[])
 				    "option 'b'");
 			}
 			break;
+		case 'D':
+			opt_AddDefine(optarg);
+			break;
 		case 'g':
 			if (strlen(optarg) == 4) {
 				newopt.gbgfx[0] = optarg[1];
@@ -303,7 +327,7 @@ main(int argc, char *argv[])
 			}
 			break;
 		case 'h':
-			haltnop = false;
+			newopt.haltnop = false;
 			break;
 		case 'i':
 			fstk_AddIncludePath(optarg);
@@ -325,7 +349,7 @@ main(int argc, char *argv[])
 			newopt.verbose = true;
 			break;
 		default:
-			PrintUsage();
+			usage();
 		}
 	}
 	argc -= optind;
@@ -335,6 +359,9 @@ main(int argc, char *argv[])
 
 	DefaultOptions = CurrentOptions;
 
+	if (argc == 0)
+		usage();
+
 	tzMainfile = argv[argc - 1];
 
 	setuplex();
@@ -353,6 +380,8 @@ main(int argc, char *argv[])
 	nErrors = 0;
 	sym_PrepPass1();
 	fstk_Init(tzMainfile);
+	opt_ParseDefines();
+
 	if (CurrentOptions.verbose) {
 		printf("Pass 1...\n");
 	}
@@ -360,59 +389,49 @@ main(int argc, char *argv[])
 	yy_set_state(LEX_STATE_NORMAL);
 	opt_SetCurrentOptions(&DefaultOptions);
 
-	if (yyparse() == 0 && nErrors == 0) {
-		if (nIFDepth == 0) {
-			nTotalLines = 0;
-			nLineNo = 1;
-			nIFDepth = 0;
-			nPC = 0;
-			nPass = 2;
-			nErrors = 0;
-			sym_PrepPass2();
-			out_PrepPass2();
-			fstk_Init(tzMainfile);
-			yy_set_state(LEX_STATE_NORMAL);
-			opt_SetCurrentOptions(&DefaultOptions);
-
-			if (CurrentOptions.verbose) {
-				printf("Pass 2...\n");
-			}
-
-			if (yyparse() == 0 && nErrors == 0) {
-				double timespent;
-
-				nEndClock = clock();
-				timespent =
-				    ((double) (nEndClock - nStartClock))
-				    / (double) CLOCKS_PER_SEC;
-				if (CurrentOptions.verbose) {
-					printf
-					    ("Success! %ld lines in %d.%02d seconds ",
-					    nTotalLines, (int) timespent,
-					    ((int) (timespent * 100.0)) % 100);
-					if (timespent == 0)
-						printf
-						    ("(INFINITY lines/minute)\n");
-					else
-						printf("(%d lines/minute)\n",
-						    (int) (60 / timespent *
-							nTotalLines));
-				}
-				out_WriteObject();
-			} else {
-				printf
-				    ("Assembly aborted in pass 2 (%ld errors)!\n",
-				    nErrors);
-				//sym_PrintSymbolTable();
-				exit(5);
-			}
-		} else {
-			errx(1, "Unterminated IF construct (%ld levels)!",
-			    nIFDepth);
-		}
-	} else {
-		errx(1, "Assembly aborted in pass 1 (%ld errors)!",
-		    nErrors);
+	if (yyparse() != 0 || nErrors != 0) {
+		errx(1, "Assembly aborted in pass 1 (%ld errors)!", nErrors);
 	}
+
+	if (nIFDepth != 0) {
+		errx(1, "Unterminated IF construct (%ld levels)!", nIFDepth);
+	}
+
+	nTotalLines = 0;
+	nLineNo = 1;
+	nIFDepth = 0;
+	nPC = 0;
+	nPass = 2;
+	nErrors = 0;
+	sym_PrepPass2();
+	out_PrepPass2();
+	fstk_Init(tzMainfile);
+	yy_set_state(LEX_STATE_NORMAL);
+	opt_SetCurrentOptions(&DefaultOptions);
+	opt_ParseDefines();
+
+	if (CurrentOptions.verbose) {
+		printf("Pass 2...\n");
+	}
+
+	if (yyparse() != 0 || nErrors != 0) {
+		errx(1, "Assembly aborted in pass 2 (%ld errors)!", nErrors);
+	}
+
+	double timespent;
+
+	nEndClock = clock();
+	timespent = ((double)(nEndClock - nStartClock))
+	    / (double)CLOCKS_PER_SEC;
+	if (CurrentOptions.verbose) {
+		printf("Success! %ld lines in %d.%02d seconds ", nTotalLines,
+		    (int) timespent, ((int) (timespent * 100.0)) % 100);
+		if (timespent == 0)
+			printf("(INFINITY lines/minute)\n");
+		else
+			printf("(%d lines/minute)\n",
+			    (int) (60 / timespent * nTotalLines));
+	}
+	out_WriteObject();
 	return 0;
 }

src/asm/math.c

@@ -1,14 +1,11 @@
 /*
- * RGBAsm - MATH.C (Fixedpoint math routines)
- *
- * INCLUDES
- *
+ * Fixedpoint math routines
  */
 
 #include <math.h>
 #include <stdio.h>
 
-#include "asm/types.h"
+#include "types.h"
 #include "asm/mymath.h"
 #include "asm/symbol.h"
 
@@ -19,24 +16,17 @@
 #endif
 
 /*
- * RGBAsm - MATH.C (Fixedpoint math routines)
- *
  * Define the _PI symbol
- *
  */
-
 void 
 math_DefinePI(void)
 {
 	sym_AddEqu("_PI", double2fix(PI));
 }
-/*
- * RGBAsm - MATH.C (Fixedpoint math routines)
- *
- * Print a fixed point value
- *
- */
 
+/*
+ * Print a fixed point value
+ */
 void 
 math_Print(SLONG i)
 {
@@ -47,143 +37,110 @@ math_Print(SLONG i)
 		printf("-%ld.%05ld", (-i) >> 16,
 		    ((SLONG) (fix2double(-i) * 100000 + 0.5)) % 100000);
 }
-/*
- * RGBAsm - MATH.C (Fixedpoint math routines)
- *
- * Calculate sine
- *
- */
 
+/*
+ * Calculate sine
+ */
 SLONG 
 math_Sin(SLONG i)
 {
 	return (double2fix(sin(fix2double(i) * 2 * PI / 65536)));
 }
-/*
- * RGBAsm - MATH.C (Fixedpoint math routines)
- *
- * Calculate cosine
- *
- */
 
+/*
+ * Calculate cosine
+ */
 SLONG 
 math_Cos(SLONG i)
 {
 	return (double2fix(cos(fix2double(i) * 2 * PI / 65536)));
 }
-/*
- * RGBAsm - MATH.C (Fixedpoint math routines)
- *
- * Calculate tangent
- *
- */
 
+/*
+ * Calculate tangent
+ */
 SLONG 
 math_Tan(SLONG i)
 {
 	return (double2fix(tan(fix2double(i) * 2 * PI / 65536)));
 }
-/*
- * RGBAsm - MATH.C (Fixedpoint math routines)
- *
- * Calculate sine^-1
- *
- */
 
+/*
+ * Calculate arcsine
+ */
 SLONG 
 math_ASin(SLONG i)
 {
 	return (double2fix(asin(fix2double(i)) / 2 / PI * 65536));
 }
-/*
- * RGBAsm - MATH.C (Fixedpoint math routines)
- *
- * Calculate cosine^-1
- *
- */
 
+/*
+ * Calculate arccosine
+ */
 SLONG 
 math_ACos(SLONG i)
 {
 	return (double2fix(acos(fix2double(i)) / 2 / PI * 65536));
 }
-/*
- * RGBAsm - MATH.C (Fixedpoint math routines)
- *
- * Calculate tangent^-1
- *
- */
 
+/*
+ * Calculate arctangent
+ */
 SLONG 
 math_ATan(SLONG i)
 {
 	return (double2fix(atan(fix2double(i)) / 2 / PI * 65536));
 }
-/*
- * RGBAsm - MATH.C (Fixedpoint math routines)
- *
- * Calculate atan2
- *
- */
 
+/*
+ * Calculate atan2
+ */
 SLONG 
 math_ATan2(SLONG i, SLONG j)
 {
 	return (double2fix
 	    (atan2(fix2double(i), fix2double(j)) / 2 / PI * 65536));
 }
-/*
- * RGBAsm - MATH.C (Fixedpoint math routines)
- *
- * Multiplication
- *
- */
 
+/*
+ * Multiplication
+ */
 SLONG 
 math_Mul(SLONG i, SLONG j)
 {
 	return (double2fix(fix2double(i) * fix2double(j)));
 }
-/*
- * RGBAsm - MATH.C (Fixedpoint math routines)
- *
- * Division
- *
- */
 
+/*
+ * Division
+ */
 SLONG 
 math_Div(SLONG i, SLONG j)
 {
 	return (double2fix(fix2double(i) / fix2double(j)));
-}/*
- * RGBAsm - MATH.C (Fixedpoint math routines)
- *
- * Round
- *
- */
+}
 
+/*
+ * Round
+ */
 SLONG 
 math_Round(SLONG i)
 {
 	return double2fix(round(fix2double(i)));
-}/*
- * RGBAsm - MATH.C (Fixedpoint math routines)
- *
- * Ceil
- *
- */
+}
 
+/*
+ * Ceil
+ */
 SLONG 
 math_Ceil(SLONG i)
 {
 	return double2fix(ceil(fix2double(i)));
-}/*
- * RGBAsm - MATH.C (Fixedpoint math routines)
- *
- * Floor
- *
- */
+}
 
+/*
+ * Floor
+ */
 SLONG 
 math_Floor(SLONG i)
 {

src/asm/output.c

@@ -1,8 +1,5 @@
 /*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * INCLUDES
- *
+ * Outputs an objectfile
  */
 
 #include <errno.h>
@@ -22,13 +19,6 @@
 
 #define SECTIONCHUNK	0x4000
 
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Internal structures
- *
- */
-
 void out_SetCurrentSection(struct Section * pSect);
 
 struct Patch {
@@ -52,12 +42,6 @@ struct SectionStackEntry {
 	struct Section *pSection;
 	struct SectionStackEntry *pNext;
 };
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * VARIABLES
- *
- */
 
 struct PatchSymbol *tHashedPatchSymbols[HASHSIZE];
 struct Section *pSectionList = NULL, *pCurrentSection = NULL;
@@ -67,12 +51,8 @@ char *tzObjectname;
 struct SectionStackEntry *pSectionStack = NULL;
 
 /*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
  * Section stack routines
- *
  */
-
 void 
 out_PushSection(void)
 {
@@ -99,13 +79,10 @@ out_PopSection(void)
 	} else
 		fatalerror("No entries in the section stack");
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Count the number of symbols used in this object
- *
- */
 
+/*
+ * Count the number of symbols used in this object
+ */
 ULONG 
 countsymbols(void)
 {
@@ -121,13 +98,10 @@ countsymbols(void)
 
 	return (count);
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Count the number of sections used in this object
- *
- */
 
+/*
+ * Count the number of sections used in this object
+ */
 ULONG 
 countsections(void)
 {
@@ -143,13 +117,10 @@ countsections(void)
 
 	return (count);
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Count the number of patches used in this object
- *
- */
 
+/*
+ * Count the number of patches used in this object
+ */
 ULONG 
 countpatches(struct Section * pSect)
 {
@@ -164,13 +135,10 @@ countpatches(struct Section * pSect)
 
 	return (r);
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Write a long to a file (little-endian)
- *
- */
 
+/*
+ * Write a long to a file (little-endian)
+ */
 void 
 fputlong(ULONG i, FILE * f)
 {
@@ -179,13 +147,10 @@ fputlong(ULONG i, FILE * f)
 	fputc(i >> 16, f);
 	fputc(i >> 24, f);
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Write a NULL-terminated string to a file
- *
- */
 
+/*
+ * Write a NULL-terminated string to a file
+ */
 void 
 fputstring(char *s, FILE * f)
 {
@@ -193,13 +158,10 @@ fputstring(char *s, FILE * f)
 		fputc(*s++, f);
 	fputc(0, f);
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Return a sections ID
- *
- */
 
+/*
+ * Return a section's ID
+ */
 ULONG 
 getsectid(struct Section * pSect)
 {
@@ -218,13 +180,10 @@ getsectid(struct Section * pSect)
 	fatalerror("INTERNAL: Unknown section");
 	return ((ULONG) - 1);
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Write a patch to a file
- *
- */
 
+/*
+ * Write a patch to a file
+ */
 void 
 writepatch(struct Patch * pPatch, FILE * f)
 {
@@ -235,13 +194,10 @@ writepatch(struct Patch * pPatch, FILE * f)
 	fputlong(pPatch->nRPNSize, f);
 	fwrite(pPatch->pRPN, 1, pPatch->nRPNSize, f);
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Write a section to a file
- *
- */
 
+/*
+ * Write a section to a file
+ */
 void 
 writesection(struct Section * pSect, FILE * f)
 {
@@ -269,13 +225,10 @@ writesection(struct Section * pSect, FILE * f)
 		}
 	}
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Write a symbol to a file
- *
- */
 
+/*
+ * Write a symbol to a file
+ */
 void 
 writesymbol(struct sSymbol * pSym, FILE * f)
 {
@@ -319,13 +272,10 @@ writesymbol(struct sSymbol * pSym, FILE * f)
 		fputlong(offset, f);
 	}
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Add a symbol to the object
- *
- */
 
+/*
+ * Add a symbol to the object
+ */
 ULONG 
 addsymbol(struct sSymbol * pSym)
 {
@@ -355,13 +305,10 @@ addsymbol(struct sSymbol * pSym)
 
 	return pPSym->ID;
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Add all exported symbols to the object
- *
- */
 
+/*
+ * Add all exported symbols to the object
+ */
 void 
 addexports(void)
 {
@@ -378,13 +325,10 @@ addexports(void)
 		}
 	}
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Allocate a new patchstructure and link it into the list
- *
- */
 
+/*
+ * Allocate a new patchstructure and link it into the list
+ */
 struct Patch *
 allocpatch(void)
 {
@@ -401,13 +345,10 @@ allocpatch(void)
 
 	return (pPatch);
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Create a new patch (includes the rpn expr)
- *
- */
 
+/*
+ * Create a new patch (includes the rpn expr)
+ */
 void 
 createpatch(ULONG type, struct Expression * expr)
 {
@@ -445,7 +386,10 @@ createpatch(ULONG type, struct Expression * expr)
 				rpnexpr[rpnptr++] = value >> 16;
 				rpnexpr[rpnptr++] = value >> 24;
 			} else {
-				symptr = addsymbol(sym_FindSymbol(tzSym));
+				struct sSymbol *sym;
+				if ((sym = sym_FindSymbol(tzSym)) == NULL)
+					break;
+				symptr = addsymbol(sym);
 				rpnexpr[rpnptr++] = RPN_SYM;
 				rpnexpr[rpnptr++] = symptr & 0xFF;
 				rpnexpr[rpnptr++] = symptr >> 8;
@@ -453,15 +397,19 @@ createpatch(ULONG type, struct Expression * expr)
 				rpnexpr[rpnptr++] = symptr >> 24;
 			}
 			break;
-		case RPN_BANK:
+		case RPN_BANK: {
+			struct sSymbol *sym;
 			symptr = 0;
 			while ((tzSym[symptr++] = rpn_PopByte(expr)) != 0);
-			symptr = addsymbol(sym_FindSymbol(tzSym));
+			if ((sym = sym_FindSymbol(tzSym)) == NULL)
+				break;
+			symptr = addsymbol(sym);
 			rpnexpr[rpnptr++] = RPN_BANK;
 			rpnexpr[rpnptr++] = symptr & 0xFF;
 			rpnexpr[rpnptr++] = symptr >> 8;
 			rpnexpr[rpnptr++] = symptr >> 16;
 			rpnexpr[rpnptr++] = symptr >> 24;
+			}
 			break;
 		default:
 			rpnexpr[rpnptr++] = rpndata;
@@ -473,13 +421,10 @@ createpatch(ULONG type, struct Expression * expr)
 		pPatch->nRPNSize = rpnptr;
 	}
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * A quick check to see if we have an initialized section
- *
- */
 
+/*
+ * A quick check to see if we have an initialized section
+ */
 void 
 checksection(void)
 {
@@ -488,14 +433,11 @@ checksection(void)
 	else
 		fatalerror("Code generation before SECTION directive");
 }
+
 /*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
  * A quick check to see if we have an initialized section that can contain
  * this much initialized data
- *
  */
-
 void 
 checkcodesection(SLONG size)
 {
@@ -505,32 +447,35 @@ checkcodesection(SLONG size)
 		errx(1, "Section '%s' cannot contain code or data (not a "
 		    "ROM0 or ROMX)", pCurrentSection->pzName);
 	}
-	if (pCurrentSection->nPC + size <= MAXSECTIONSIZE) {
-		if (((pCurrentSection->nPC % SECTIONCHUNK) >
-			((pCurrentSection->nPC + size) % SECTIONCHUNK))
-		    && (pCurrentSection->nType == SECT_ROM0
-			|| pCurrentSection->nType == SECT_ROMX)) {
-			if ((pCurrentSection->tData =
-				(UBYTE *) realloc(pCurrentSection->tData,
-				    ((pCurrentSection->nPC +
-					    size) / SECTIONCHUNK +
-					1) * SECTIONCHUNK)) != NULL) {
-				return;
-			} else
-				fatalerror
-				    ("Not enough memory to expand section");
-		}
-		return;
-	} else
-		errx(1, "Section '%s' is too big", pCurrentSection->pzName);
-}
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Write an objectfile
- *
- */
+	if (pCurrentSection->nPC + size > MAXSECTIONSIZE) {
+		/*
+		 * N.B.: This check is not sufficient to ensure the section
+		 * will fit, because there can be multiple sections of this
+		 * type. The definitive check must be done at the linking
+		 * stage.
+		 */
+		errx(1, "Section '%s' is too big (old size %d + %d > %d)",
+		    pCurrentSection->pzName, pCurrentSection->nPC, size,
+		    MAXSECTIONSIZE);
+	}
+	if (((pCurrentSection->nPC % SECTIONCHUNK) >
+	    ((pCurrentSection->nPC + size) % SECTIONCHUNK)) &&
+	    (pCurrentSection->nType == SECT_ROM0 ||
+	    pCurrentSection->nType == SECT_ROMX)) {
+		pCurrentSection->tData = realloc(pCurrentSection->tData,
+		    ((pCurrentSection->nPC + size) / SECTIONCHUNK + 1) *
+		    SECTIONCHUNK);
 
+		if (pCurrentSection->tData == NULL) {
+			err(1, "Could not expand section");
+		}
+	}
+	return;
+}
+
+/*
+ * Write an objectfile
+ */
 void 
 out_WriteObject(void)
 {
@@ -561,13 +506,10 @@ out_WriteObject(void)
 		fclose(f);
 	}
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Prepare for pass #2
- *
- */
 
+/*
+ * Prepare for pass #2
+ */
 void 
 out_PrepPass2(void)
 {
@@ -581,13 +523,10 @@ out_PrepPass2(void)
 	pCurrentSection = NULL;
 	pSectionStack = NULL;
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Set the objectfilename
- *
- */
 
+/*
+ * Set the objectfilename
+ */
 void 
 out_SetFileName(char *s)
 {
@@ -599,16 +538,12 @@ out_SetFileName(char *s)
 	pCurrentSection = NULL;
 	pPatchSymbols = NULL;
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Find a section by name and type.  If it doesn't exist, create it
- *
- */
 
+/*
+ * Find a section by name and type.  If it doesn't exist, create it
+ */
 struct Section *
-out_FindSection(char *pzName, ULONG secttype, SLONG org,
-    SLONG bank)
+out_FindSection(char *pzName, ULONG secttype, SLONG org, SLONG bank)
 {
 	struct Section *pSect, **ppSect;
 
@@ -652,13 +587,10 @@ out_FindSection(char *pzName, ULONG secttype, SLONG org,
 
 	return (NULL);
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Set the current section
- *
- */
 
+/*
+ * Set the current section
+ */
 void 
 out_SetCurrentSection(struct Section * pSect)
 {
@@ -668,37 +600,28 @@ out_SetCurrentSection(struct Section * pSect)
 	pPCSymbol->nValue = nPC;
 	pPCSymbol->pSection = pCurrentSection;
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Set the current section by name and type
- *
- */
 
+/*
+ * Set the current section by name and type
+ */
 void 
 out_NewSection(char *pzName, ULONG secttype)
 {
 	out_SetCurrentSection(out_FindSection(pzName, secttype, -1, -1));
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Set the current section by name and type
- *
- */
 
+/*
+ * Set the current section by name and type
+ */
 void 
 out_NewAbsSection(char *pzName, ULONG secttype, SLONG org, SLONG bank)
 {
 	out_SetCurrentSection(out_FindSection(pzName, secttype, org, bank));
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Output an absolute byte
- *
- */
 
+/*
+ * Output an absolute byte
+ */
 void 
 out_AbsByte(int b)
 {
@@ -719,13 +642,10 @@ out_AbsByteGroup(char *s, int length)
 	while (length--)
 		out_AbsByte(*s++);
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Skip this many bytes
- *
- */
 
+/*
+ * Skip this many bytes
+ */
 void 
 out_Skip(int skip)
 {
@@ -741,13 +661,10 @@ out_Skip(int skip)
 			out_AbsByte(CurrentOptions.fillchar);
 	}
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Output a NULL terminated string (excluding the NULL-character)
- *
- */
 
+/*
+ * Output a NULL terminated string (excluding the NULL-character)
+ */
 void 
 out_String(char *s)
 {
@@ -755,12 +672,10 @@ out_String(char *s)
 	while (*s)
 		out_AbsByte(*s++);
 }
+
 /*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
  * Output a relocatable byte.  Checking will be done to see if it
  * is an absolute value in disguise.
- *
  */
 
 void 
@@ -780,13 +695,10 @@ out_RelByte(struct Expression * expr)
 
 	rpn_Reset(expr);
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Output an absolute word
- *
- */
 
+/*
+ * Output an absolute word
+ */
 void 
 out_AbsWord(int b)
 {
@@ -800,14 +712,11 @@ out_AbsWord(int b)
 	nPC += 2;
 	pPCSymbol->nValue += 2;
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Output a relocatable word.  Checking will be done to see if
- * is an absolute value in disguise.
- *
- */
 
+/*
+ * Output a relocatable word.  Checking will be done to see if
+ * it's an absolute value in disguise.
+ */
 void 
 out_RelWord(struct Expression * expr)
 {
@@ -828,13 +737,10 @@ out_RelWord(struct Expression * expr)
 		out_AbsWord(expr->nVal);
 	rpn_Reset(expr);
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Output an absolute longword
- *
- */
 
+/*
+ * Output an absolute longword
+ */
 void 
 out_AbsLong(SLONG b)
 {
@@ -849,14 +755,11 @@ out_AbsLong(SLONG b)
 	nPC += 4;
 	pPCSymbol->nValue += 4;
 }
+
 /*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
  * Output a relocatable longword.  Checking will be done to see if
  * is an absolute value in disguise.
- *
  */
-
 void 
 out_RelLong(struct Expression * expr)
 {
@@ -879,13 +782,10 @@ out_RelLong(struct Expression * expr)
 		out_AbsLong(expr->nVal);
 	rpn_Reset(expr);
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Output a PC-relative byte
- *
- */
 
+/*
+ * Output a PC-relative byte
+ */
 void 
 out_PCRelByte(struct Expression * expr)
 {
@@ -899,13 +799,10 @@ out_PCRelByte(struct Expression * expr)
 	out_AbsByte(b);
 	rpn_Reset(expr);
 }
-/*
- * RGBAsm - OUTPUT.C - Outputs an objectfile
- *
- * Output a binary file
- *
- */
 
+/*
+ * Output a binary file
+ */
 void 
 out_BinaryFile(char *s)
 {

src/asm/rgbasm.1

@@ -1,4 +1,4 @@
-.Dd $Mdocdate$
+.Dd February 26, 2015
 .Dt RGBASM 1
 .Os RGBDS Manual
 .Sh NAME
@@ -6,9 +6,9 @@
 .Nd Game Boy assembler
 .Sh SYNOPSIS
 .Nm rgbasm
-.Op Fl v
-.Op Fl h
+.Op Fl hv
 .Op Fl b Ar chars
+.Op Fl D Ar name Ns Op = Ns Ar value
 .Op Fl g Ar chars
 .Op Fl i Ar path
 .Op Fl o Ar outfile
@@ -23,6 +23,12 @@ Its arguments are as follows:
 .It Fl b Ar chars
 Change the two characters used for binary constants.
 The defaults are 01.
+.It Fl D Ar name Ns Op = Ns Ar value
+Add string symbol to the compiled source code. This is equivalent to
+.Ar name
+.Cm EQUS
+.Qq Ar "value"
+in code. If a value is not specified, a value of 1 is given.
 .It Fl g Ar chars
 Change the four characters used for binary constants.
 The defaults are 0123.
@@ -50,7 +56,7 @@ Be verbose.
 .Sh EXAMPLES
 Assembling a basic source file is simple:
 .Pp
-.D1 $ rgbasm \-o bar.o foo.asm
+.D1 $ rgbasm -o bar.o foo.asm
 .Pp
 The resulting object file is not yet a usable ROM image \(em it must first be
 run through
@@ -58,10 +64,9 @@ run through
 and
 .Xr rgbfix 1 .
 .Sh SEE ALSO
-.Xr rgbds 7 ,
 .Xr rgbfix 1 ,
 .Xr rgblink 1 ,
-.Xr gbz80 7
+.Xr rgbds 7
 .Sh HISTORY
 .Nm
 was originally written by Carsten S\(/orensen as part of the ASMotor package,

src/asm/rpn.c

@@ -1,15 +1,12 @@
 /*
- * RGBAsm - RPN.C - Controls RPN expressions for objectfiles
- *
- * INCLUDES
- *
+ * Controls RPN expressions for objectfiles
  */
 
 #include <stdio.h>
 #include <string.h>
 
 #include "asm/mylink.h"
-#include "asm/types.h"
+#include "types.h"
 #include "asm/symbol.h"
 #include "asm/asm.h"
 #include "asm/main.h"
@@ -29,49 +26,26 @@ mergetwoexpressions(struct Expression * expr, struct Expression * src1,
 #define joinexpr() mergetwoexpressions(expr,src1,src2)
 
 /*
- * RGBAsm - RPN.C - Controls RPN expressions for objectfiles
- *
- * VARIABLES
- *
- */
-
-//UBYTE rpnexpr[2048];
-//ULONG rpnptr = 0;
-//ULONG rpnoutptr = 0;
-//ULONG reloc = 0;
-//ULONG pcrel = 0;
-
-/*
- * RGBAsm - RPN.C - Controls RPN expressions for objectfiles
- *
  * Add a byte to the RPN expression
- *
  */
-
 void 
 pushbyte(struct Expression * expr, int b)
 {
 	expr->tRPN[expr->nRPNLength++] = b & 0xFF;
 }
-/*
- * RGBAsm - RPN.C - Controls RPN expressions for objectfiles
- *
- * Reset the RPN module
- *
- */
 
+/*
+ * Reset the RPN module
+ */
 void 
 rpn_Reset(struct Expression * expr)
 {
 	expr->nRPNLength = expr->nRPNOut = expr->isReloc = expr->isPCRel = 0;
 }
-/*
- * RGBAsm - RPN.C - Controls RPN expressions for objectfiles
- *
- * Returns the next rpn byte in expression
- *
- */
 
+/*
+ * Returns the next rpn byte in expression
+ */
 UWORD 
 rpn_PopByte(struct Expression * expr)
 {
@@ -80,37 +54,28 @@ rpn_PopByte(struct Expression * expr)
 	} else
 		return (expr->tRPN[expr->nRPNOut++]);
 }
-/*
- * RGBAsm - RPN.C - Controls RPN expressions for objectfiles
- *
- * Determine if the current expression is relocatable
- *
- */
 
+/*
+ * Determine if the current expression is relocatable
+ */
 ULONG 
 rpn_isReloc(struct Expression * expr)
 {
 	return (expr->isReloc);
 }
-/*
- * RGBAsm - RPN.C - Controls RPN expressions for objectfiles
- *
- * Determine if the current expression can be pc-relative
- *
- */
 
+/*
+ * Determine if the current expression can be pc-relative
+ */
 ULONG 
 rpn_isPCRelative(struct Expression * expr)
 {
 	return (expr->isPCRel);
 }
-/*
- * RGBAsm - RPN.C - Controls RPN expressions for objectfiles
- *
- * Add symbols, constants and operators to expression
- *
- */
 
+/*
+ * Add symbols, constants and operators to expression
+ */
 void 
 rpn_Number(struct Expression * expr, ULONG i)
 {
@@ -187,6 +152,7 @@ rpn_RangeCheck(struct Expression * expr, struct Expression * src, SLONG low,
 		return (expr->nVal >= low && expr->nVal <= high);
 	}
 }
+
 void 
 rpn_CheckHRAM(struct Expression * expr, struct Expression * src)
 {

src/asm/symbol.c

@@ -1,8 +1,5 @@
 /*
- * RGBAsm - SYMBOL.C - Symboltable and macroargs stuff
- *
- * INCLUDES
- *
+ * Symboltable and macroargs stuff
  */
 
 #include <assert.h>
@@ -16,13 +13,6 @@
 #include "asm/mymath.h"
 #include "asm/output.h"
 
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * VARIABLES
- *
- */
-
 struct sSymbol *tHashedSymbols[HASHSIZE];
 struct sSymbol *pScope = NULL;
 struct sSymbol *pPCSymbol = NULL;
@@ -44,12 +34,8 @@ Callback_NARG(struct sSymbol * sym)
 }
 
 /*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
  * Get the nValue field of a symbol
- *
  */
-
 SLONG 
 getvaluefield(struct sSymbol * sym)
 {
@@ -58,13 +44,10 @@ getvaluefield(struct sSymbol * sym)
 	} else
 		return (sym->nValue);
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Calculate the hash value for a string
- *
- */
 
+/*
+ * Calculate the hash value for a string
+ */
 ULONG 
 calchash(char *s)
 {
@@ -75,13 +58,10 @@ calchash(char *s)
 
 	return (hash % HASHSIZE);
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Create a new symbol by name
- *
- */
 
+/*
+ * Create a new symbol by name
+ */
 struct sSymbol *
 createsymbol(char *s)
 {
@@ -110,12 +90,8 @@ createsymbol(char *s)
 	}
 }
 /*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
  * Find a symbol by name and scope
- *
  */
-
 struct sSymbol *
 findsymbol(char *s, struct sSymbol * scope)
 {
@@ -134,13 +110,10 @@ findsymbol(char *s, struct sSymbol * scope)
 	}
 	return (NULL);
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Find the pointer to a symbol by name and scope
- *
- */
 
+/*
+ * Find the pointer to a symbol by name and scope
+ */
 struct sSymbol **
 findpsymbol(char *s, struct sSymbol * scope)
 {
@@ -159,13 +132,10 @@ findpsymbol(char *s, struct sSymbol * scope)
 	}
 	return (NULL);
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Find a symbol by name and scope
- *
- */
 
+/*
+ * Find a symbol by name and scope
+ */
 struct sSymbol *
 sym_FindSymbol(char *tzName)
 {
@@ -178,13 +148,10 @@ sym_FindSymbol(char *tzName)
 
 	return (findsymbol(tzName, pscope));
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Purge a symbol
- *
- */
 
+/*
+ * Purge a symbol
+ */
 void 
 sym_Purge(char *tzName)
 {
@@ -212,13 +179,10 @@ sym_Purge(char *tzName)
 		yyerror("'%s' not defined", tzName);
 	}
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Determine if a symbol has been defined
- *
- */
 
+/*
+ * Determine if a symbol has been defined
+ */
 ULONG 
 sym_isConstDefined(char *tzName)
 {
@@ -260,13 +224,10 @@ sym_isDefined(char *tzName)
 	else
 		return (0);
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Determine if the symbol is a constant
- *
- */
 
+/*
+ * Determine if the symbol is a constant
+ */
 ULONG 
 sym_isConstant(char *s)
 {
@@ -283,13 +244,10 @@ sym_isConstant(char *s)
 	}
 	return (0);
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Get a string equate's value
- *
- */
 
+/*
+ * Get a string equate's value
+ */
 char *
 sym_GetStringValue(char *tzSym)
 {
@@ -303,13 +261,10 @@ sym_GetStringValue(char *tzSym)
 
 	return (NULL);
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Return a constant symbols value
- *
- */
 
+/*
+ * Return a constant symbols value
+ */
 ULONG 
 sym_GetConstantValue(char *s)
 {
@@ -332,13 +287,10 @@ sym_GetConstantValue(char *s)
 
 	return (0);
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Return a symbols value... "estimated" if not defined yet
- *
- */
 
+/*
+ * Return a symbols value... "estimated" if not defined yet
+ */
 ULONG 
 sym_GetValue(char *s)
 {
@@ -374,13 +326,10 @@ sym_GetValue(char *s)
 
 	return (0);
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Return a defined symbols value... aborts if not defined yet
- *
- */
 
+/*
+ * Return a defined symbols value... aborts if not defined yet
+ */
 ULONG 
 sym_GetDefinedValue(char *s)
 {
@@ -406,13 +355,10 @@ sym_GetDefinedValue(char *s)
 
 	return (0);
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Macro argument stuff
- *
- */
 
+/*
+ * Macro argument stuff
+ */
 void 
 sym_ShiftCurrentMacroArgs(void)
 {
@@ -490,7 +436,7 @@ sym_AddNewMacroArg(char *s)
 		else
 			newmacroargs[i] = NULL;
 	} else
-		yyerror("A maximum of 9 arguments allowed");
+		yyerror("A maximum of %d arguments allowed", MAXMACROARGS);
 }
 
 void 
@@ -510,25 +456,19 @@ sym_UseCurrentMacroArgs(void)
 	for (i = 1; i <= MAXMACROARGS; i += 1)
 		sym_AddNewMacroArg(sym_FindMacroArg(i));
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Find a macro by name
- *
- */
 
+/*
+ * Find a macro by name
+ */
 struct sSymbol *
 sym_FindMacro(char *s)
 {
 	return (findsymbol(s, NULL));
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Add an equated symbol
- *
- */
 
+/*
+ * Add an equated symbol
+ */
 void 
 sym_AddEqu(char *tzSym, SLONG value)
 {
@@ -551,13 +491,10 @@ sym_AddEqu(char *tzSym, SLONG value)
 		}
 	}
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Add a string equated symbol
- *
- */
 
+/*
+ * Add a string equated symbol
+ */
 void 
 sym_AddString(char *tzSym, char *tzValue)
 {
@@ -580,13 +517,10 @@ sym_AddString(char *tzSym, char *tzValue)
 		nsym->pScope = NULL;
 	}
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * check if symbol is a string equated symbol
- *
- */
 
+/*
+ * check if symbol is a string equated symbol
+ */
 ULONG 
 sym_isString(char *tzSym)
 {
@@ -598,13 +532,10 @@ sym_isString(char *tzSym)
 	}
 	return (0);
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Alter a SET symbols value
- *
- */
 
+/*
+ * Alter a SET symbols value
+ */
 void 
 sym_AddSet(char *tzSym, SLONG value)
 {
@@ -620,13 +551,10 @@ sym_AddSet(char *tzSym, SLONG value)
 		nsym->pScope = NULL;
 	}
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Add a local (.name) relocatable symbol
- *
- */
 
+/*
+ * Add a local (.name) relocatable symbol
+ */
 void 
 sym_AddLocalReloc(char *tzSym)
 {
@@ -654,13 +582,10 @@ sym_AddLocalReloc(char *tzSym)
 			fatalerror("Local label in main scope");
 	}
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Add a relocatable symbol
- *
- */
 
+/*
+ * Add a relocatable symbol
+ */
 void 
 sym_AddReloc(char *tzSym)
 {
@@ -684,15 +609,11 @@ sym_AddReloc(char *tzSym)
 		}
 	}
 	pScope = findsymbol(tzSym, NULL);
-
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Export a symbol
- *
- */
 
+/*
+ * Export a symbol
+ */
 void 
 sym_Export(char *tzSym)
 {
@@ -716,13 +637,10 @@ sym_Export(char *tzSym)
 	}
 
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Import a symbol
- *
- */
 
+/*
+ * Import a symbol
+ */
 void 
 sym_Import(char *tzSym)
 {
@@ -737,13 +655,10 @@ sym_Import(char *tzSym)
 			nsym->nType |= SYMF_IMPORT;
 	}
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Globalize a symbol (export if defined, import if not)
- *
- */
 
+/*
+ * Globalize a symbol (export if defined, import if not)
+ */
 void 
 sym_Global(char *tzSym)
 {
@@ -765,13 +680,10 @@ sym_Global(char *tzSym)
 		}
 	}
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Add a macro definition
- *
- */
 
+/*
+ * Add a macro definition
+ */
 void 
 sym_AddMacro(char *tzSym)
 {
@@ -796,25 +708,19 @@ sym_AddMacro(char *tzSym)
 		}
 	}
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Prepare for pass #1
- *
- */
 
+/*
+ * Prepare for pass #1
+ */
 void 
 sym_PrepPass1(void)
 {
 	sym_Init();
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Prepare for pass #2
- *
- */
 
+/*
+ * Prepare for pass #2
+ */
 void 
 sym_PrepPass2(void)
 {
@@ -845,14 +751,13 @@ sym_PrepPass2(void)
 	sym_AddEqu("_NARG", 0);
 	p_NARGSymbol = findsymbol("_NARG", NULL);
 	p_NARGSymbol->Callback = Callback_NARG;
+	
+	math_DefinePI();
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * Initialise the symboltable
- *
- */
 
+/*
+ * Initialize the symboltable
+ */
 void 
 sym_Init(void)
 {
@@ -889,72 +794,3 @@ sym_Init(void)
 	math_DefinePI();
 
 }
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * DEBUG: Print the symbol table
- *
- */
-
-void 
-sym_PrintSymbolTable(void)
-{
-	ULONG i;
-
-	for (i = 0; i < HASHSIZE; i += 1) {
-		struct sSymbol *sym = tHashedSymbols[i];
-
-		if (sym != NULL)
-			printf("\nHashTable #%ld:\n", i);
-
-		while (sym != NULL) {
-			if (sym->nType & SYMF_LOCAL)
-				printf("LOCAL : '%s%s' - %08lX\n",
-				    sym->pScope->tzName, sym->tzName,
-				    getvaluefield(sym));
-			else if (sym->nType & (SYMF_MACRO | SYMF_STRING)) {
-				ULONG i = 0;
-
-				printf("MACRO : '%s'\n\"", sym->tzName);
-				while (i < sym->ulMacroSize) {
-					if (sym->pMacro[i] == '\n') {
-						printf("\n");
-						i += 1;
-					} else
-						printf("%c", sym->pMacro[i++]);
-				}
-				printf("\"\n");
-			} else if (sym->nType & SYMF_EXPORT)
-				printf("EXPORT: '%s' - %08lX\n", sym->tzName,
-				    getvaluefield(sym));
-			else if (sym->nType & SYMF_IMPORT)
-				printf("IMPORT: '%s'\n", sym->tzName);
-			else if (sym->nType & SYMF_EQU)
-				printf("EQU   : '%s' - %08lX\n", sym->tzName,
-				    getvaluefield(sym));
-			else if (sym->nType & SYMF_SET)
-				printf("SET   : '%s' - %08lX\n", sym->tzName,
-				    getvaluefield(sym));
-			else
-				printf("SYMBOL: '%s' - %08lX\n", sym->tzName,
-				    getvaluefield(sym));
-
-			sym = sym->pNext;
-		}
-	}
-}
-/*
- * RGBAsm - SYMBOL.C - Symboltable stuff
- *
- * DEBUG: Dump the macroargs
- *
- */
-
-void 
-sym_DumpMacroArgs(void)
-{
-	ULONG i;
-
-	for (i = 0; i < MAXMACROARGS; i += 1)
-		printf("CurrentArg%ld: %s\n", i + 1, currentmacroargs[i]);
-}

src/extern/err.c

@@ -26,13 +26,11 @@
 #include <stdlib.h>
 #include "extern/err.h"
 
-#ifndef __MINGW32__
-char *__progname;
-#endif
+extern char *progname;
 
 void rgbds_vwarn(const char *fmt, va_list ap)
 {
-	fprintf (stderr, "%s: ", __progname);
+	fprintf (stderr, "%s: ", progname);
 	if (fmt) {
 		vfprintf(stderr, fmt, ap);
 		fputs (": ", stderr);
@@ -42,7 +40,7 @@ void rgbds_vwarn(const char *fmt, va_list ap)
 
 void rgbds_vwarnx(const char *fmt, va_list ap)
 {
-	fprintf (stderr, "%s: ", __progname);
+	fprintf (stderr, "%s: ", progname);
 	if (fmt) vfprintf(stderr, fmt, ap);
 	putc('\n', stderr);
 }

src/extern/reallocarray.c

@@ -0,0 +1,38 @@
+/*	$OpenBSD: reallocarray.c,v 1.2 2014/12/08 03:45:00 bcook Exp $	*/
+/*
+ * Copyright (c) 2008 Otto Moerbeek <otto@drijf.net>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <errno.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+/*
+ * This is sqrt(SIZE_MAX+1), as s1*s2 <= SIZE_MAX
+ * if both s1 < MUL_NO_OVERFLOW and s2 < MUL_NO_OVERFLOW
+ */
+#define MUL_NO_OVERFLOW	((size_t)1 << (sizeof(size_t) * 4))
+
+void *
+rgbds_reallocarray(void *optr, size_t nmemb, size_t size)
+{
+	if ((nmemb >= MUL_NO_OVERFLOW || size >= MUL_NO_OVERFLOW) &&
+	    nmemb > 0 && SIZE_MAX / nmemb < size) {
+		errno = ENOMEM;
+		return NULL;
+	}
+	return realloc(optr, size * nmemb);
+}

src/extern/strlcat.c

@@ -1,7 +1,7 @@
-/*	$OpenBSD: strlcat.c,v 1.13 2005/08/08 08:05:37 espie Exp $	*/
+/*	$OpenBSD: strlcat.c,v 1.14 2015/01/15 03:54:12 millert Exp $	*/
 
 /*
- * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ * Copyright (c) 1998, 2015 Todd C. Miller <Todd.Miller@courtesan.com>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -20,36 +20,36 @@
 #include <string.h>
 
 /*
- * Appends src to string dst of size siz (unlike strncat, siz is the
- * full size of dst, not space left).  At most siz-1 characters
- * will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
- * Returns strlen(src) + MIN(siz, strlen(initial dst)).
- * If retval >= siz, truncation occurred.
+ * Appends src to string dst of size dsize (unlike strncat, dsize is the
+ * full size of dst, not space left).  At most dsize-1 characters
+ * will be copied.  Always NUL terminates (unless dsize <= strlen(dst)).
+ * Returns strlen(src) + MIN(dsize, strlen(initial dst)).
+ * If retval >= dsize, truncation occurred.
  */
 size_t
-rgbds_strlcat(char *dst, const char *src, size_t siz)
+rgbds_strlcat(char *dst, const char *src, size_t dsize)
 {
-	char *d = dst;
-	const char *s = src;
-	size_t n = siz;
+	const char *odst = dst;
+	const char *osrc = src;
+	size_t n = dsize;
 	size_t dlen;
 
-	/* Find the end of dst and adjust bytes left but don't go past end */
-	while (n-- != 0 && *d != '\0')
-		d++;
-	dlen = d - dst;
-	n = siz - dlen;
+	/* Find the end of dst and adjust bytes left but don't go past end. */
+	while (n-- != 0 && *dst != '\0')
+		dst++;
+	dlen = dst - odst;
+	n = dsize - dlen;
 
-	if (n == 0)
-		return(dlen + strlen(s));
-	while (*s != '\0') {
-		if (n != 1) {
-			*d++ = *s;
+	if (n-- == 0)
+		return(dlen + strlen(src));
+	while (*src != '\0') {
+		if (n != 0) {
+			*dst++ = *src;
 			n--;
 		}
-		s++;
+		src++;
 	}
-	*d = '\0';
+	*dst = '\0';
 
-	return(dlen + (s - src));	/* count does not include NUL */
+	return(dlen + (src - osrc));	/* count does not include NUL */
 }

src/extern/strlcpy.c

@@ -1,7 +1,7 @@
-/*	$OpenBSD: strlcpy.c,v 1.11 2006/05/05 15:27:38 millert Exp $	*/
+/*	$OpenBSD: strlcpy.c,v 1.12 2015/01/15 03:54:12 millert Exp $	*/
 
 /*
- * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ * Copyright (c) 1998, 2015 Todd C. Miller <Todd.Miller@courtesan.com>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -20,32 +20,31 @@
 #include <string.h>
 
 /*
- * Copy src to string dst of size siz.  At most siz-1 characters
- * will be copied.  Always NUL terminates (unless siz == 0).
- * Returns strlen(src); if retval >= siz, truncation occurred.
+ * Copy string src to buffer dst of size dsize.  At most dsize-1
+ * chars will be copied.  Always NUL terminates (unless dsize == 0).
+ * Returns strlen(src); if retval >= dsize, truncation occurred.
  */
 size_t
-rgbds_strlcpy(char *dst, const char *src, size_t siz)
+rgbds_strlcpy(char *dst, const char *src, size_t dsize)
 {
-	char *d = dst;
-	const char *s = src;
-	size_t n = siz;
+	const char *osrc = src;
+	size_t nleft = dsize;
 
-	/* Copy as many bytes as will fit */
-	if (n != 0) {
-		while (--n != 0) {
-			if ((*d++ = *s++) == '\0')
+	/* Copy as many bytes as will fit. */
+	if (nleft != 0) {
+		while (--nleft != 0) {
+			if ((*dst++ = *src++) == '\0')
 				break;
 		}
 	}
 
-	/* Not enough room in dst, add NUL and traverse rest of src */
-	if (n == 0) {
-		if (siz != 0)
-			*d = '\0';		/* NUL-terminate dst */
-		while (*s++)
+	/* Not enough room in dst, add NUL and traverse rest of src. */
+	if (nleft == 0) {
+		if (dsize != 0)
+			*dst = '\0';		/* NUL-terminate dst */
+		while (*src++)
 			;
 	}
 
-	return(s - src - 1);	/* count does not include NUL */
+	return(src - osrc - 1);	/* count does not include NUL */
 }

src/fix/main.c

@@ -23,13 +23,15 @@
 
 #include "extern/err.h"
 
+char *progname;
+
 static void
 usage(void)
 {
-	printf("usage: rgbfix [-Ccjsv] [-i game_id] [-k licensee_str] "
-	    "[-l licensee_id]\n" "              [-m mbc_type] [-n rom_version] "
-	    "[-p pad_value] [-r ram_size]\n"
-	    "              [-t title_str] file.gb\n");
+	printf(
+"usage: rgbfix [-Ccjsv] [-i game_id] [-k licensee_str] [-l licensee_id]\n"
+"              [-m mbc_type] [-n rom_version] [-p pad_value] [-r ram_size]\n"
+"              [-t title_str] file\n");
 	exit(1);
 }
 
@@ -40,17 +42,6 @@ main(int argc, char *argv[])
 	int ch;
 	char *ep;
 
-	/*
-	 * Open the ROM file
-	 */
-
-	if (argc < 2)
-		usage();
-
-	if ((rom = fopen(argv[argc - 1], "rb+")) == NULL) {
-		err(1, "Error opening file %s", argv[argc - 1]);
-	}
-
 	/*
 	 * Parse command-line options
 	 */
@@ -70,15 +61,17 @@ main(int argc, char *argv[])
 	bool resize = false;
 	bool setversion = false;
 
-	char *title = NULL; /* game title in ASCII */
-	char *id = NULL; /* game ID in ASCII */
-	char *newlicensee = NULL; /* new licensee ID, two ASCII characters */
+	char *title; /* game title in ASCII */
+	char *id; /* game ID in ASCII */
+	char *newlicensee; /* new licensee ID, two ASCII characters */
 
-	int licensee = -1;  /* old licensee ID */
-	int cartridge = -1; /* cartridge hardware ID */
-	int ramsize = -1;   /* RAM size ID */
-	int version = -1;   /* mask ROM version number */
-	int padvalue = -1;  /* to pad the rom with if it changes size */
+	int licensee;  /* old licensee ID */
+	int cartridge; /* cartridge hardware ID */
+	int ramsize;   /* RAM size ID */
+	int version;   /* mask ROM version number */
+	int padvalue;  /* to pad the rom with if it changes size */
+
+	progname = argv[0];
 
 	while ((ch = getopt(argc, argv, "Cci:jk:l:m:n:p:sr:t:v")) != -1) {
 		switch (ch) {
@@ -197,6 +190,20 @@ main(int argc, char *argv[])
 		}
 	}
 
+	argc -= optind;
+	argv += optind;
+
+	if (argc == 0)
+		usage();
+
+	/*
+	 * Open the ROM file
+	 */
+
+	if ((rom = fopen(argv[argc - 1], "rb+")) == NULL) {
+		err(1, "Error opening file %s", argv[argc - 1]);
+	}
+
 	/*
 	 * Write changes to ROM
 	 */
@@ -350,7 +357,8 @@ main(int argc, char *argv[])
 		 */
 
 		/* We will pad the ROM to match the size given in the header. */
-		int romsize, newsize, headbyte;
+		long romsize, newsize;
+		int headbyte;
 		uint8_t *buf;
 		fseek(rom, 0, SEEK_END);
 		romsize = ftell(rom);

src/fix/rgbfix.1

@@ -1,4 +1,4 @@
-.Dd $Mdocdate$
+.Dd February 26, 2015
 .Dt RGBFIX 1
 .Os RGBDS Manual
 .Sh NAME
@@ -41,7 +41,7 @@ flag are set,
 takes precedence.
 .It Fl i Ar game_id
 Set the game ID string
-.Pq Ad 0x13F No Ns \(en Ns Ad 0x142
+.Pq Ad 0x13F Ns \(en Ns Ad 0x142
 to a given string of exactly 4 characters.
 If both this and the title are set, the game ID will overwrite the
 overlapping portion of the title.
@@ -51,7 +51,7 @@ Set the non-Japanese region flag:
 = 1.
 .It Fl k Ar licensee_str
 Set the new licensee string
-.Pq Ad 0x144 No Ns \(en Ns Ad 0x145
+.Pq Ad 0x144 Ns \(en Ns Ad 0x145
 to a given string, truncated to at most two characters.
 .It Fl l Ar licensee_id
 Set the old licensee code,
@@ -84,7 +84,7 @@ Set the SGB flag:
 = 3.
 .It Fl t Ar title
 Set the title string
-.Pq Ad 0x134 No Ns \(en Ns Ad 0x143
+.Pq Ad 0x134 Ns \(en Ns Ad 0x143
 to a given string, truncated to at most 16 characters.
 It is recommended to use 15 characters instead, to avoid clashing with the CGB
 flag
@@ -93,11 +93,11 @@ If both this and the game ID are set, the game ID will overwrite the
 overlapping portion of the title.
 .It Fl v
 Validate the header and fix checksums: the Nintendo character area
-.Pq Ad 0x104 No Ns \(en Ns Ad 0x133 ,
+.Pq Ad 0x104 Ns \(en Ns Ad 0x133 ,
 the header checksum
 .Pq Ad 0x14D ,
 and the global checksum
-.Pq Ad 0x14E No Ns \(en Ns Ad 0x14F .
+.Pq Ad 0x14E Ns \(en Ns Ad 0x14F .
 .El
 .Sh EXAMPLES
 Most values in the ROM header are only cosmetic.
@@ -109,7 +109,7 @@ It is a good idea to pad the image to a valid size as well
 The following will make a plain, no-color Game Boy game without checking for
 a valid size:
 .Pp
-.D1 $ rgbfix \-v foo.gb
+.D1 $ rgbfix -v foo.gb
 .Pp
 The following will make a SGB-enabled, color-enabled game with a title of
 .Dq foobar ,
@@ -119,19 +119,19 @@ The Game Boy itself does not use the title, but some emulators or ROM managers
 might.
 .Pc
 .Pp
-.D1 $ rgbfix \-vcs \-l 0x33 \-p 0 \-t foobar baz.gb
+.D1 $ rgbfix -vcs -l 0x33 -p 0 -t foobar baz.gb
 .Pp
 The following will duplicate the header
 .Pq sans global checksum
 of the game
 .Dq Survival Kids :
 .Pp
-.D1 $ rgbfix \-cjsv \-k A4 \-l 0x33 \-m 0x1B \-p 0xFF \-r 3 \-t SURVIVALKIDAVKE SurvivalKids.gbc
+.D1 $ rgbfix -cjsv -k A4 -l 0x33 -m 0x1B -p 0xFF -r 3 -t SURVIVALKIDAVKE \
+SurvivalKids.gbc
 .Sh SEE ALSO
-.Xr rgbds 7 ,
 .Xr rgbasm 1 ,
 .Xr rgblink 1 ,
-.Xr gbz80 7
+.Xr rgbds 7
 .Sh HISTORY
 .Nm
 was originally released by Carsten S\(/orensen as a standalone program called

src/link/assign.c

@@ -324,6 +324,7 @@ AssignSRAMSections(void)
 		if ((org = area_AllocSRAMAnyBank(pSection->nByteSize)) != -1) {
 			pSection->nOrg = org & 0xFFFF;
 			pSection->nBank = org >> 16;
+			pSection->nBank += BANK_SRAM;
 			pSection->oAssigned = 1;
 			DOMAXSBANK(pSection->nBank);
 		} else {
@@ -343,6 +344,7 @@ AssignWRAMSections(void)
 		if ((org = area_AllocWRAMAnyBank(pSection->nByteSize)) != -1) {
 			pSection->nOrg = org & 0xFFFF;
 			pSection->nBank = org >> 16;
+			pSection->nBank += BANK_WRAMX - 1;
 			pSection->oAssigned = 1;
 			DOMAXWBANK(pSection->nBank);
 		} else {
@@ -557,8 +559,8 @@ AssignSections(void)
 						 * bank are hardcoded.
 						 */
 
-						if (pSection->nBank >= 1
-						    && pSection->nBank <= 7) {
+						if (pSection->nBank >= 0
+						    && pSection->nBank <= 6) {
 							pSection->nBank +=
 							    BANK_WRAMX;
 							if (area_AllocAbs

src/link/library.c

@@ -3,7 +3,7 @@
 #include <string.h>
 
 #include "extern/err.h"
-#include "link/types.h"
+#include "types.h"
 #include "link/mylink.h"
 #include "link/main.h"
 

src/link/main.c

@@ -24,6 +24,8 @@ SLONG options = 0;
 SLONG fillchar = 0;
 char smartlinkstartsymbol[256];
 
+char *progname;
+
 /*
  * Print the usagescreen
  *
@@ -32,9 +34,9 @@ char smartlinkstartsymbol[256];
 static void 
 usage(void)
 {
-	printf("usage: rgblink [-t] [-m mapfile] [-n symfile] [-o outfile]\n");
-	printf("\t    [-s symbol] [-z pad_value] objectfile [...]\n");
-
+	printf(
+"usage: rgblink [-t] [-m mapfile] [-n symfile] [-o outfile] [-p pad_value]\n"
+"               [-s symbol] file [...]\n");
 	exit(1);
 }
 
@@ -52,7 +54,9 @@ main(int argc, char *argv[])
 	if (argc == 1)
 		usage();
 
-	while ((ch = getopt(argc, argv, "l:m:n:o:p:s:t")) != -1) {
+	progname = argv[0];
+
+	while ((ch = getopt(argc, argv, "m:n:o:p:s:t")) != -1) {
 		switch (ch) {
 		case 'm':
 			SetMapfileName(optarg);

src/link/mapfile.c

@@ -53,33 +53,49 @@ MapfileInitBank(SLONG bank)
 {
 	if (mf) {
 		currentbank = bank;
-		if (bank == 0)
-			fprintf(mf, "Bank #0 (HOME):\n");
+		if (bank == BANK_ROM0)
+			fprintf(mf, "ROM Bank #0 (HOME):\n");
 		else if (bank < BANK_WRAM0)
-			fprintf(mf, "Bank #%ld:\n", bank);
+			fprintf(mf, "ROM Bank #%ld:\n", bank);
 		else if (bank == BANK_WRAM0)
-			fprintf(mf, "WRAM0:\n");
+			fprintf(mf, "WRAM Bank #0:\n");
+		else if (bank < BANK_VRAM)
+			fprintf(mf, "WRAM Bank #%ld:\n", bank - BANK_WRAMX + 1);
 		else if (bank == BANK_HRAM)
 			fprintf(mf, "HRAM:\n");
 		else if (bank == BANK_VRAM || bank == BANK_VRAM + 1)
 			fprintf(mf, "VRAM Bank #%ld:\n", bank - BANK_VRAM);
+		else if (bank < MAXBANKS)
+			fprintf(mf, "SRAM Bank #%ld:\n", bank - BANK_SRAM);
 	}
 	if (sf) {
-		sfbank = (bank >= 1 && bank <= 511) ? bank : 0;
+		if (bank < BANK_WRAM0)
+			sfbank = bank;
+		else if (bank == BANK_WRAM0)
+			sfbank = 0;
+		else if (bank < BANK_VRAM)
+			sfbank = bank - BANK_WRAMX + 1;
+		else if (bank == BANK_HRAM)
+			sfbank = 0;
+		else if (bank == BANK_VRAM || bank == BANK_VRAM + 1)
+			sfbank = bank - BANK_VRAM;
+		else if (bank < MAXBANKS)
+			sfbank = bank - BANK_SRAM;
+		else
+			sfbank = 0;
 	}
 }
 
 void 
 MapfileWriteSection(struct sSection * pSect)
 {
-	if (!mf && !sf)
-		return;
-
 	SLONG i;
 
-	fprintf(mf, "  SECTION: $%04lX-$%04lX ($%04lX bytes)\n",
-	    pSect->nOrg, pSect->nOrg + pSect->nByteSize - 1,
-	    pSect->nByteSize);
+	if (mf) {
+		fprintf(mf, "  SECTION: $%04lX-$%04lX ($%04lX bytes)\n",
+		    pSect->nOrg, pSect->nOrg + pSect->nByteSize - 1,
+		    pSect->nByteSize);
+	}
 
 	for (i = 0; i < pSect->nNumberOfSymbols; i += 1) {
 		struct sSymbol *pSym;

src/link/output.c

@@ -86,7 +86,7 @@ Output(void)
 
 		fclose(f);
 	}
-	for (i = 256; i < MAXBANKS; i += 1) {
+	for (i = BANK_WRAM0; i < MAXBANKS; i++) {
 		struct sSection *pSect;
 		MapfileInitBank(i);
 		pSect = pSections;

src/link/patch.c

@@ -3,6 +3,7 @@
 #include <string.h>
 
 #include "extern/err.h"
+#include "link/assign.h"
 #include "link/mylink.h"
 #include "link/symbol.h"
 #include "link/main.h"
@@ -53,18 +54,28 @@ getsymvalue(SLONG symid)
 SLONG 
 getsymbank(SLONG symid)
 {
+	SLONG nBank;
+
 	switch (pCurrentSection->tSymbols[symid]->Type) {
-		case SYM_IMPORT:
-		return (sym_GetBank(pCurrentSection->tSymbols[symid]->pzName));
+	case SYM_IMPORT:
+		nBank = sym_GetBank(pCurrentSection->tSymbols[symid]->pzName);
 		break;
 	case SYM_EXPORT:
 	case SYM_LOCAL:
-		return (pCurrentSection->tSymbols[symid]->pSection->nBank);
-		//return (pCurrentSection->nBank);
-	default:
+		nBank = pCurrentSection->tSymbols[symid]->pSection->nBank;
 		break;
+	default:
+		errx(1, "*INTERNAL* UNKNOWN SYMBOL TYPE");
 	}
-	errx(1, "*INTERNAL* UNKNOWN SYMBOL TYPE");
+
+	if (nBank >= BANK_WRAMX && nBank <= (BANK_WRAMX+6))
+		return nBank - BANK_WRAMX + 1;
+	if (nBank >= BANK_VRAM && nBank <= (BANK_VRAM+1))
+		return nBank - BANK_VRAM;
+	if (nBank >= BANK_SRAM && nBank <= (BANK_SRAM+3))
+		return nBank - BANK_SRAM;
+
+	return nBank;
 }
 
 SLONG 

src/link/rgblink.1

@@ -1,4 +1,4 @@
-.Dd $Mdocdate$
+.Dd February 26, 2015
 .Dt RGBLINK 1
 .Os RGBDS Manual
 .Sh NAME
@@ -7,7 +7,6 @@
 .Sh SYNOPSIS
 .Nm rgblink
 .Op Fl t
-.Op Fl l Ar library
 .Op Fl m Ar mapfile
 .Op Fl n Ar symfile
 .Op Fl o Ar outfile
@@ -51,7 +50,7 @@ section size from 16KiB to 32KiB.
 All you need for a basic ROM is an object file, which can be made into a ROM
 image like so:
 .Pp
-.D1 $ rgblink \-o bar.gb foo.o
+.D1 $ rgblink -o bar.gb foo.o
 .Pp
 The resulting bar.gb will not have correct checksums
 .Pq unless you put them in the assembly source .
@@ -59,12 +58,11 @@ You should use
 .Xr rgbfix 1
 to fix these so that the program will actually run in a Game Boy:
 .Pp
-.D1 $ rgbfix \-v bar.gb
+.D1 $ rgbfix -v bar.gb
 .Sh SEE ALSO
-.Xr rgbds 7 ,
 .Xr rgbasm 1 ,
 .Xr rgbfix 1 ,
-.Xr gbz80 7
+.Xr rgbds 7
 .Sh HISTORY
 .Nm
 was originally written by Carsten S\(/orensen as part of the ASMotor package,

src/link/symbol.c

@@ -5,7 +5,7 @@
 #include "extern/err.h"
 #include "link/main.h"
 #include "link/patch.h"
-#include "link/types.h"
+#include "types.h"
 
 #define HASHSIZE 73
 
@@ -76,7 +76,7 @@ sym_GetBank(char *tzName)
 }
 
 void 
-sym_CreateSymbol(char *tzName, SLONG nValue, SBYTE nBank)
+sym_CreateSymbol(char *tzName, SLONG nValue, SLONG nBank)
 {
 	if (strcmp(tzName, "@") == 0)
 		return;

test/asm/bank-noexist.asm

@@ -0,0 +1,2 @@
+SECTION "sec", ROM0
+	db BANK(noexist) 

test/asm/bank-noexist.out

@@ -0,0 +1,2 @@
+ERROR:	bank-noexist.asm(2) :
+	'noexist' not defined

test/asm/divzero-instr.asm

@@ -0,0 +1,2 @@
+SECTION "sec", ROM0
+	ld  a, 1/0

test/asm/divzero-instr.out

@@ -0,0 +1,2 @@
+ERROR:	divzero-instr.asm(2) :
+	division by zero

test/asm/divzero-section-bank.asm

@@ -0,0 +1 @@
+SECTION "sec", ROMX[$/0]

test/asm/divzero-section-bank.out

@@ -0,0 +1,2 @@
+ERROR:	divzero-section-bank.asm(1) :
+	division by zero

test/asm/macro-@.asm

@@ -0,0 +1 @@
+foo @bar

test/asm/macro-@.out

@@ -0,0 +1,2 @@
+ERROR:	macro-@.asm(1) -> @(-1) :
+	Macro '@' not defined

test/asm/test.sh

@@ -0,0 +1,6 @@
+fname=$(mktemp)
+
+for i in *.asm; do
+	../../rgbasm $i >$fname 2>&1
+	diff -u $fname ${i%.asm}.out
+done

test/asm/undefined-dot.asm

@@ -0,0 +1,3 @@
+SECTION "sec", ROM0
+foo:
+	add sp, .

test/asm/undefined-dot.out

@@ -0,0 +1,2 @@
+ERROR:	undefined-dot.asm(3) :
+	'.' not defined

test/link/ram-bank-numbers.asm

@@ -0,0 +1,36 @@
+; this should generate a rom consisting of the following bytes:
+; 01 02 03 04 05 06 07 00 01 02 03 00 01
+
+section "x",rom0
+	db bank(w1),bank(w2),bank(w3),bank(w4),bank(w5),bank(w6),bank(w7)
+	db bank(s0),bank(s1),bank(s2),bank(s3)
+	db bank(v0),bank(v1)
+
+section "wa",wramx,bank[1]
+w1:
+section "wb",wramx,bank[2]
+w2:
+section "wc",wramx,bank[3]
+w3:
+section "wd",wramx,bank[4]
+w4:
+section "we",wramx,bank[5]
+w5:
+section "wf",wramx,bank[6]
+w6:
+section "wg",wramx,bank[7]
+w7:
+
+section "sa",sram,bank[0]
+s0:
+section "sb",sram,bank[1]
+s1:
+section "sc",sram,bank[2]
+s2:
+section "sd",sram,bank[3]
+s3:
+
+section "v00",vram,bank[0]
+v0:
+section "v01",vram,bank[1]
+v1: