Merge pull request #155 from ProjectRevoTPP/assert

add assert support to pokeemerald.

include/config.h

@@ -1,6 +1,23 @@
 #ifndef GUARD_CONFIG_H
 #define GUARD_CONFIG_H
 
+// In the Generation 3 games, Asserts were used in various debug builds.
+// Ruby/Sapphire and Emerald do not have these asserts while Fire Red
+// still has them in the ROM. This is because the developers forgot
+// to define NDEBUG before release, however this has been changed as
+// Ruby's actual debug build does not use the AGBPrint features.
+#define NDEBUG
+
+// To enable print debugging, comment out "#define NDEBUG". This allows
+// the various AGBPrint functions to be used. (See include/gba/isagbprint.h).
+// Some emulators support a debug console window: uncomment NoCashGBAPrint()
+// and NoCashGBAPrintf() in libisagbprn.c to use no$gba's own proprietary
+// printing system. Use NoCashGBAPrint() and NoCashGBAPrintf() like you
+// would normally use AGBPrint() and AGBPrintf().
+
+// NOTE: Don't try to enable assert right now as many pointers
+// still exist in defines and WILL likely result in a broken ROM.
+
 #define ENGLISH
 
 #ifdef ENGLISH

include/gba/gba.h

@@ -7,5 +7,6 @@
 #include "gba/multiboot.h"
 #include "gba/syscall.h"
 #include "gba/macro.h"
+#include "gba/isagbprint.h"
 
 #endif // GUARD_GBA_GBA_H

include/gba/isagbprint.h

@@ -0,0 +1,50 @@
+#ifndef GUARD_GBA_ISAGBPRINT_H
+#define GUARD_GBA_ISAGBPRINT_H
+
+#ifdef NDEBUG
+#define AGBPrintInit()
+#define AGBPutc(cChr)
+#define AGBPrint(pBuf)
+#define	AGBPrintf(pBuf, ...)
+#define AGBPrintFlush1Block()
+#define AGBPrintFlush()
+#define AGBAssert(pFile, nLine, pExpression, nStopProgram)
+#else
+void AGBPrintInit(void);
+void AGBPutc(const char cChr);
+void AGBPrint(const char *pBuf);
+void AGBPrintf(const char *pBuf, ...);
+void AGBPrintFlush1Block(void);
+void AGBPrintFlush(void);
+void AGBAssert(const char *pFile, int nLine, const char *pExpression, int nStopProgram);
+#endif
+
+#undef AGB_ASSERT
+#ifdef NDEBUG
+#define	AGB_ASSERT(exp)
+#else
+#define	AGB_ASSERT(exp) (exp) ? ((void*)0) : AGBAssert(__FILE__, __LINE__, #exp, 1);
+#endif
+
+#undef AGB_WARNING
+#ifdef NDEBUG
+#define	AGB_WARNING(exp)
+#else
+#define	AGB_WARNING(exp) (exp) ? ((void*)0) : AGBAssert(__FILE__, __LINE__, #exp, 0);
+#endif
+
+// for matching purposes
+
+#ifdef NDEBUG
+#define	AGB_ASSERT_EX(exp, file, line)
+#else
+#define	AGB_ASSERT_EX(exp, file, line) (exp) ? ((void*)0) : AGBAssert(file, line, #exp, 1);
+#endif
+
+#ifdef NDEBUG
+#define	AGB_WARNING_EX(exp, file, line)
+#else
+#define	AGB_WARNING_EX(exp, file, line) (exp) ? ((void*)0) : AGBAssert(file, line, #exp, 0);
+#endif
+
+#endif // GUARD_GBA_ISAGBPRINT_H

include/global.h

@@ -1,8 +1,8 @@
 #ifndef GUARD_GLOBAL_H
 #define GUARD_GLOBAL_H
 
+#include "config.h" // we need to define config before gba headers as print stuff needs the functions nulled before defines.
 #include "gba/gba.h"
-#include "config.h"
 
 // Prevent cross-jump optimization.
 #define BLOCK_CROSS_JUMP asm("");