July 24, 2008 update by theinternetftw

src/Globals.cpp

@@ -38,13 +38,13 @@ bool speedup = false;
 bool synchronize = true;
 bool cpuDisableSfx = false;
 bool cpuIsMultiBoot = false;
-bool parseDebug = true;
+bool parseDebug = false;
 int layerSettings = 0xff00;
 int layerEnable = 0xff00;
 bool speedHack = false;
 int cpuSaveType = 0;
 bool cpuEnhancedDetection = true;
-bool cheatsEnabled = true;
+bool cheatsEnabled = false;
 
 u8 *bios = NULL;
 u8 *rom = NULL;

src/ngc/gcpad.cpp

@@ -103,7 +103,6 @@ NGCPad()
 	{
 		float mag,ang;
 		int b = wpad->exp.classic.btns;
-	/* Stolen Shamelessly out of Falco's unofficial SNES9x update */
 		ang = wpad->exp.classic.ljs.ang;
 		mag = wpad->exp.classic.ljs.mag;
 
@@ -155,8 +154,7 @@ NGCPad()
 
 	}  
 	//user needs a GC remote  
-	else
+	     PAD_ScanPads();
-	{
 	     p = PAD_ButtonsHeld(0);
 	     x = PAD_StickX(0);
 	     y = PAD_StickY(0);
@@ -223,7 +221,7 @@ NGCPad()
 	       
 	     if((p & PAD_BUTTON_X) && (p & PAD_BUTTON_Y))
   		   menuCalled = 1;    
-	 }
+
 #endif     
 
 #ifdef GC_BUILD

src/ngc/gx_supp.c

@@ -44,7 +44,7 @@ static Mtx view;
 static int vwidth, vheight, oldvwidth, oldvheight;
 
 #define HASPECT 80
-#define VASPECT 60
+#define VASPECT 45
 
 /* New texture based scaler */
 typedef struct tagcamera
@@ -132,11 +132,11 @@ void GX_Start(int width, int height, int haspect, int vaspect)
 {
   Mtx p;
 
-  /*** Set new aspect ***/
+  /*** Set new aspect (now with crap AR hack!) ***/
-  square[0] = square[9] = -haspect;
+  square[0] = square[9] = (-haspect - 7);
-  square[3] = square[6] = haspect;
+  square[3] = square[6] = (haspect + 7);
-  square[1] = square[4] = vaspect;
+  square[1] = square[4] = (vaspect + 7);
-  square[7] = square[10] = -vaspect;
+  square[7] = square[10] = (-vaspect - 7);
 
   /*** Allocate 32byte aligned texture memory ***/
   texturesize = (width * height) * 2;

src/ngc/vba172.cpp

@@ -24,8 +24,8 @@ extern int isWiimoteAvailable;
 
 void setup_controllers()
 {	/*  Doesn't work, either always returns 
-	WiimoteAvailable or switches REALLY fast
+	WiimoteAvailable only or apparently switches 
-	between the two.  WTF.
+	REALLY fast between the two.  WTF.
 
 	WPAD_ScanPads();
 	WPADData pad;
@@ -69,6 +69,7 @@ extern "C"
   {
 #include "gx_supp.h"
 #include "tbtime.h"
+#include "sdfileio.h"
   }
 
 /** VBA **/
@@ -110,10 +111,13 @@ int srcHeight = 0;
 int destWidth = 0;
 int destHeight = 0;
 int srcPitch = 0;
+int saveExists = 0; 
 extern int menuCalled;
 #define WITHGX	1
 #define DEBUGON 0
 
+
+
 #if DEBUGON
 const char *dbg_local_ip = "192.168.1.32";
 const char *dbg_netmask = "255.255.255.0";
@@ -133,12 +137,7 @@ void (*dbgOutput)(char *, u32) = debuggerOutput;
 /**
  * Locals
  */
-extern "C"
+
-  {
-    void SDInit( void );
-    int gen_getdir( char *whichdir );
-  };
-extern char *direntries[1000];
 extern char *MENU_GetLoadFile( char *whichdir );
 extern void MENU_DrawString( int x, int y, char *msg, int style );
 
@@ -170,6 +169,13 @@ void doScan(u32 blah)
 	PAD_ScanPads();
 }
 
+
+int throttle = 100;
+u32 throttleLastTime = 0;
+
+char filename[1024];	//rom file name
+char batfilename[1024]; //battery save file name
+char statename[1024]; //savestate file name
 /****************************************************************************
 * Initialise Video
 *
@@ -192,6 +198,7 @@ Initialise (void)
 #ifdef WII_BUILD
   CONF_Init();
   WPAD_Init();
+  setup_controllers();
 #endif
   vmode = VIDEO_GetPreferredMode(NULL);
 
@@ -223,11 +230,11 @@ Initialise (void)
   /*** Get the PAD status updated by libogc ***/
   VIDEO_SetPreRetraceCallback (doScan);
   VIDEO_SetBlack (0);
-
+/*
   int i;
   u32 *vreg = (u32 *)0xCC002000;
   for ( i = 0; i < 64; i++ )
-	vreg[i] = vpal60[i];
+	vreg[i] = vpal60[i];   */
 
   /*** Update the video for next vblank ***/
   VIDEO_Flush ();
@@ -242,6 +249,16 @@ void systemMessage(int num, const char *msg, ...)
 {
 	  /*** For now ... do nothing ***/
 }
+
+void GC_Sleep(u32 dwMiliseconds)
+{
+	int nVBlanks = (dwMiliseconds / 16);
+	while (nVBlanks-- > 0)
+	{
+		VIDEO_WaitVSync();
+	}
+}
+
 void systemFrame()
 {}
 
@@ -252,48 +269,10 @@ void systemShowSpeed(int speed)
 {}
 static u32 autoFrameSkipLastTime = 0;
 static int frameskipadjust = 0;
-void system1Frame(int rate)
+
+void write_save()
 {
-/*	  if ( cartridgeType == 1 )
+emulator.emuWriteBattery(batfilename);
-	    return;
-	
-	  u32 time = systemGetClock();
-	  u32 diff = time - autoFrameSkipLastTime;
-	  int speed = 100;
-	
-	  if(diff)
-	    speed = (1000000/rate)/diff;
-	  char temp[512];
-	  sprintf(temp,"Speed: %i",speed);
-	  MENU_DrawString( -1, 450,temp , 1 );
-	  	
-	  if(speed >= 98)
-	    {
-	      frameskipadjust++;
-	
-	      if(frameskipadjust >= 3)
-	        {
-	          frameskipadjust=0;
-	          if(systemFrameSkip > 0)
-	            systemFrameSkip--;
-	        }
-	    }
-	  else
-	    {
-	      if(speed  < 80)
-	        frameskipadjust -= (90 - speed)/5;
-	      else if(systemFrameSkip < 9)
-	        frameskipadjust--;
-	
-	      if(frameskipadjust <= -2)
-	        {
-	          frameskipadjust += 2;
-	          if(systemFrameSkip < 9)
-	            systemFrameSkip++;
-	        }
-	    }
-	  autoFrameSkipLastTime = time;
-*/
 }
 
 void system10Frames(int rate)
@@ -307,10 +286,10 @@ void system10Frames(int rate)
 	
 	  if(diff)
 	    speed = (1000000/rate)/diff;
-/*	  char temp[512];
+  /*	  char temp[512];
 	  sprintf(temp,"Speed: %i",speed);
-	  MENU_DrawString( -1, 450,temp , 1 );
+	  MENU_DrawString( -1, 450,temp , 1 );   */
-*/	  	
+	  	
 	  if(speed >= 98)
 	    {
 	      frameskipadjust++;
@@ -336,10 +315,30 @@ void system10Frames(int rate)
 	            systemFrameSkip++;
 	        }
 	    }   
-	  autoFrameSkipLastTime = time;
 
+if ( cartridgeType == 1 )
+	    return;
+
+
+/*
+if(systemSaveUpdateCounter) {
+      char temp[512];
+	  sprintf(temp,"Writing Save To Disk");
+	    MENU_DrawString( -1, 450,temp , 1 );
+}     */
+
+  if(systemSaveUpdateCounter) {
+    if(--systemSaveUpdateCounter <= SYSTEM_SAVE_NOT_UPDATED) {
+      write_save();
+      systemSaveUpdateCounter = SYSTEM_SAVE_NOT_UPDATED;
+    }
+  }
+
+	  autoFrameSkipLastTime = time;   
 }
 
+
+
 void systemUpdateMotionSensor()
 {}
 
@@ -445,7 +444,9 @@ void systemDrawScreen()
   GX_Render( srcWidth, srcHeight, pix, srcPitch );
 #endif
 #ifdef WII_BUILD
+
 	VIDEO_WaitVSync ();
+
 #endif
 #ifdef GC_BUILD
   if ( cartridgeType == 1 )
@@ -470,10 +471,6 @@ int ShowDir( char *whichdir )
 	while(1);
 }
 
-char filename[1024];	//rom file name
-char batfilename[1024]; //battery save file name
-
-
 /*
 	Asks user to select a ROM
 */
@@ -490,11 +487,10 @@ void chooseRom() {
   	strncat(batfilename,fname,strlen(fname)-4);
   	strcat(batfilename,".SAV");
 
-}
+	// construct savestate name
-
+	strcpy(statename, "/VBA/SAVES/");
-void askSound() {
+	strncat(statename,fname,strlen(fname)-4);
-  soundOffFlag = false;
+	strcat(statename,".SGM");
-  soundLowPass =  true;
 }
 
 /*
@@ -502,33 +498,63 @@ void askSound() {
 	If it does, it prompts the user to load it or not
 */
 void checkSave() {
-	
+    FILE* f = gen_fopen(statename, "rb");
-}
+    if (f != NULL) {
-void GC_Sleep(u32 dwMiliseconds)
+    gen_fclose(f);
-{
-	int nVBlanks = (dwMiliseconds / 16);
-	while (nVBlanks-- > 0)
-	{
-		VIDEO_WaitVSync();
-	}
-}
-void write_save()
-{
-	VIDEO_ClearFrameBuffer (vmode, xfb[whichfb], COLOR_BLACK);
-   	MENU_DrawString( -1, 250,"Attempting to Save data ..." , 1 );
     whichfb^=1;
     VIDEO_ClearFrameBuffer (vmode, xfb[whichfb], COLOR_BLACK);
-    if(emulator.emuWriteBattery(batfilename) == true) 
+    MENU_DrawString( 140, 50,"Quick Save State Exists" , 1 );
-		MENU_DrawString( -1, 250,"Save OK!" , 1 );
+    MENU_DrawString( 140, 80,"Do you wish to load it?" , 1 );
-	else
+    MENU_DrawString( -1, 170,"(L) or  (+)       YES" , 1 );
-		MENU_DrawString( -1, 250,"Either no data to save yet or error!" , 1 );
+    MENU_DrawString( -1, 200,"(R) or  (-)       NO" , 1 );
     VIDEO_WaitVSync ();
     VIDEO_SetNextFramebuffer(xfb[whichfb]);
     VIDEO_Flush();
-	GC_Sleep(2000);
+    VIDEO_WaitVSync();
-	
+    while(1) {
+	WPADData *wpad;
+	WPAD_ScanPads();
+	wpad = WPAD_Data(0);
+	if (isWiimoteAvailable) {
+	  unsigned short b = wpad->btns_h;
+        if(b & WPAD_BUTTON_PLUS) {
+          saveExists = 1;
+          break;
+        }
+        if(b & WPAD_BUTTON_MINUS) break;
+      }
+      if (isClassicAvailable) {	  
+        unsigned short b = wpad->exp.classic.btns;
+        if(b & CLASSIC_CTRL_BUTTON_PLUS) {
+          saveExists = 1;
+          break;
+        }
+        if(b & CLASSIC_CTRL_BUTTON_MINUS) break;
+      }
+      u16 buttons = PAD_ButtonsHeld(0); 
+      if(buttons & PAD_TRIGGER_R){ 
+        break;
+    	}
+	if(buttons & PAD_TRIGGER_L){
+        saveExists = 1;   
+        break;
+    	}
+    }
+  VIDEO_ClearFrameBuffer (vmode, xfb[whichfb], COLOR_BLACK);
+  VIDEO_WaitVSync ();
+  VIDEO_SetNextFramebuffer(xfb[whichfb]);
+  VIDEO_Flush();
+  VIDEO_WaitVSync();
+  }
 }
 
+
+void askSound() {
+  soundOffFlag = false;
+  soundLowPass =  true;
+}
+
+
 int ingameMenu() {
 	tb_t start,end;
 	mftb(&start);
@@ -542,14 +568,14 @@ int ingameMenu() {
 #ifdef GC_BUILD
       MENU_DrawString( 140, 80,"Nintendo Gamecube Port" , 1 );
       MENU_DrawString( -1, 170,"(B)       - Resume play" , 1 );
-	  MENU_DrawString( -1, 200,"(L)       - Write save" , 1 );
+	MENU_DrawString( -1, 200,"(L)       - Write Quicksave" , 1 );
       MENU_DrawString( -1, 230,"(R)       - Reset game" , 1 );
 	MENU_DrawString( -1, 320,"(Z)       - Return to loader" , 1 );
 #endif
 #ifdef WII_BUILD
       MENU_DrawString( 140, 80,"Nintendo Wii Port" , 1 );
       MENU_DrawString( -1, 170,"(B) or (Home)    - Resume play" , 1 );
-	  MENU_DrawString( -1, 200,"(L) or  (+)      - Write save" , 1 );
+	MENU_DrawString( -1, 200,"(L) or  (+)      - Write Quicksave" , 1 );
 	MENU_DrawString( -1, 230,"(R) or  (-)      - Reset game" , 1 );
 	MENU_DrawString( -1, 320,"(Z) or (A+B)     - Return to loader" , 1 );
 #endif	  
@@ -563,15 +589,18 @@ int ingameMenu() {
 	VIDEO_WaitVSync();
 	 
 	  //wait for user to let go of menu calling button
-	  do{buttons = PAD_ButtonsHeld(0);}while((buttons & PAD_BUTTON_A)||(buttons & PAD_BUTTON_B));
+	  do{buttons = PAD_ButtonsHeld(0);}
+	    while((buttons & PAD_BUTTON_A)||(buttons & PAD_BUTTON_B));
 	  //wait for user to let go of home button
 #ifdef WII_BUILD
 		WPADData *wpad;
 		int btn;
 		if(isWiimoteAvailable)  
-			do{WPAD_ScanPads(); wpad = WPAD_Data(0); btn = wpad->btns_h;}while(btn & WPAD_BUTTON_HOME);
+		  do{WPAD_ScanPads(); wpad = WPAD_Data(0); btn = wpad->btns_h;}
+		    while(btn & WPAD_BUTTON_HOME);
 		if(isClassicAvailable)  
-			do{WPAD_ScanPads(); wpad = WPAD_Data(0); btn = wpad->exp.classic.btns;}while(btn & CLASSIC_CTRL_BUTTON_HOME);
+		  do{WPAD_ScanPads(); wpad = WPAD_Data(0); btn = wpad->exp.classic.btns;}
+		    while(btn & CLASSIC_CTRL_BUTTON_HOME);
 #endif
 
 	  while(1){
@@ -588,7 +617,8 @@ int ingameMenu() {
 		  break;
 	        }
 	      if(b & WPAD_BUTTON_PLUS) { //Write save
-		    	write_save();
+	    	  emulator.emuWriteState(statename);
+		  GC_Sleep(1500);
 		  break;
 	        }
 	    	if((b & WPAD_BUTTON_A) && (b & WPAD_BUTTON_B)) { //Return to loader
@@ -596,9 +626,13 @@ int ingameMenu() {
 		  reload();    		
 	    	  }
 	    	if(b & WPAD_BUTTON_HOME) {	//Resume play
-	    	do{WPAD_ScanPads(); wpad = WPAD_Data(0); b = wpad->btns_h;}while(b & WPAD_BUTTON_HOME);  //wait for home
+	    	  do{WPAD_ScanPads(); wpad = WPAD_Data(0); b = wpad->btns_h;}
+		    while(b & WPAD_BUTTON_HOME);  //wait for home
 		  break;
 	    	  }
+	/*	if(b & WPAD_BUTTON_2) { //back to menu
+			INSERT BACK-TO-MENU HERE	
+    		  }  */
 	    }
     	    if (isClassicAvailable)
     	    {
@@ -608,7 +642,7 @@ int ingameMenu() {
 		  break;
 	    	  }
 		if(b & CLASSIC_CTRL_BUTTON_PLUS) { //Write save
-		    	write_save();
+		  emulator.emuWriteState(statename);
 		  break;
 	    	  }
 	    	if((b & CLASSIC_CTRL_BUTTON_A) && (b & CLASSIC_CTRL_BUTTON_B)) { //Return to loader
@@ -630,7 +664,7 @@ int ingameMenu() {
 	    	break;
     	      }
 	    if(buttons & PAD_TRIGGER_L) { //Write save
-	    	write_save();
+		emulator.emuWriteState(statename);
             break;
     	      }
     	    if(buttons & PAD_TRIGGER_Z) { //Return to loader
@@ -645,9 +679,9 @@ int ingameMenu() {
 	mftb(&end);
       loadtimeradjust += tb_diff_msec(&end, &start);
 	return 0;	  
-		  
 }
 
+
 /****************************************************************************
 * main
 *
@@ -668,6 +702,7 @@ int main()
     /** Kick off SD Lib **/
     SDInit(); 
 	
+    
         /** Build GBPalette **/
 	  for( i = 0; i < 24; )
 	    {
@@ -688,9 +723,6 @@ int main()
 	                             (((i & 0x7c00) >> 10) << systemBlueShift);
 	    }
     
-#ifdef WII_BUILD
-	  setup_controllers();
-#endif	    
 	//Main loop
 	while(1) {
 		cartridgeType = 0;
@@ -701,14 +733,14 @@ int main()
 		srcPitch = 0;
 	
 		chooseRom();
-		//checkSave();
+		checkSave();
 
 	  IMAGE_TYPE type = utilFindType(filename);
 	
 	  switch( type )
 	    {
 	    case IMAGE_GBA:
-//	      printf("GameBoy Advance Image\n");
+	      printf("GameBoy Advance Image\n");
 	      cartridgeType = 2;
 	      emulator = GBASystem;
 	      srcWidth = 240;
@@ -724,7 +756,7 @@ int main()
 	      break;
 	
 	    case IMAGE_GB:
-//	      printf("GameBoy Image\n");
+	      printf("GameBoy Image\n");
 	      cartridgeType = 1;
 	      emulator = GBSystem;
 	      srcWidth = 160;
@@ -739,7 +771,7 @@ int main()
 	      break;
 	
 	    default:
-//	      printf("Unknown Image\n");
+	      printf("Unknown Image\n");
 	      while(1);
 	      break;
 	
@@ -756,6 +788,8 @@ int main()
 	  GX_Start( srcWidth, srcHeight, hAspect, vAspect );
 	#endif
  
+
+
 	  if ( cartridgeType == 1 )
 	    {
 	      gbSoundReset();
@@ -768,6 +802,12 @@ int main()
 	      CPUReset();
 	    }
 
+	  emulator.emuReadBattery(batfilename);	
+	  if (saveExists){ 
+	    emulator.emuReadState(statename);	
+	    saveExists = 0; 
+          }
+
 	  soundVolume = 0;
 	  systemSoundOn = true;
 	
@@ -778,7 +818,6 @@ int main()
 	  /** Start system clock **/
 	  mftb(&start);
 	  
-	  emulator.emuReadBattery(batfilename);
       while ( emulating )
 	  {
 	    emulator.emuMain(emulator.emuCount);
@@ -788,7 +827,6 @@ int main()
 	      menuCalled = 0;
   	    }
 	  }
-
 	}
 
   /** Never **/

src/zutil.h

@@ -0,0 +1,220 @@
+/* zutil.h -- internal interface and configuration of the compression library
+ * Copyright (C) 1995-1998 Jean-loup Gailly.
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+   part of the implementation of the compression library and is
+   subject to change. Applications should only use zlib.h.
+ */
+
+/* @(#) $Id: zutil.h,v 1.2 2004/01/17 23:07:32 kxu Exp $ */
+
+#ifndef _Z_UTIL_H
+#define _Z_UTIL_H
+
+#include <zlib.h>
+
+#ifdef STDC
+#  include <stddef.h>
+#  include <string.h>
+#  include <stdlib.h>
+#endif
+#ifdef NO_ERRNO_H
+extern int errno;
+#else
+#   include <errno.h>
+#endif
+
+#ifndef local
+#  define local static
+#endif
+/* compile with -Dlocal if your debugger can't find static symbols */
+
+typedef unsigned char  uch;
+typedef uch FAR uchf;
+typedef unsigned short ush;
+typedef ush FAR ushf;
+typedef unsigned long  ulg;
+
+extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */
+/* (size given to avoid silly warnings with Visual C++) */
+
+#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
+
+#define ERR_RETURN(strm,err) \
+  return (strm->msg = (char*)ERR_MSG(err), (err))
+/* To be used only when the state is known to be valid */
+
+/* common constants */
+
+#ifndef DEF_WBITS
+#  define DEF_WBITS MAX_WBITS
+#endif
+/* default windowBits for decompression. MAX_WBITS is for compression only */
+
+#if MAX_MEM_LEVEL >= 8
+#  define DEF_MEM_LEVEL 8
+#else
+#  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
+#endif
+/* default memLevel */
+
+#define STORED_BLOCK 0
+#define STATIC_TREES 1
+#define DYN_TREES    2
+/* The three kinds of block type */
+
+#define MIN_MATCH  3
+#define MAX_MATCH  258
+/* The minimum and maximum match lengths */
+
+#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
+
+/* target dependencies */
+
+#ifdef MSDOS
+#  define OS_CODE  0x00
+#  if defined(__TURBOC__) || defined(__BORLANDC__)
+#    if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
+/* Allow compilation with ANSI keywords only enabled */
+void _Cdecl farfree( void *block );
+void *_Cdecl farmalloc( unsigned long nbytes );
+#    else
+#     include <alloc.h>
+#    endif
+#  else /* MSC or DJGPP */
+#    include <malloc.h>
+#  endif
+#endif
+
+#ifdef OS2
+#  define OS_CODE  0x06
+#endif
+
+#ifdef WIN32 /* Window 95 & Windows NT */
+#  define OS_CODE  0x0b
+#endif
+
+#if defined(VAXC) || defined(VMS)
+#  define OS_CODE  0x02
+#  define F_OPEN(name, mode) \
+     fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
+#endif
+
+#ifdef AMIGA
+#  define OS_CODE  0x01
+#endif
+
+#if defined(ATARI) || defined(atarist)
+#  define OS_CODE  0x05
+#endif
+
+#if defined(MACOS) || defined(TARGET_OS_MAC)
+#  define OS_CODE  0x07
+#  if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
+#    include <unix.h> /* for fdopen */
+#  else
+#    ifndef fdopen
+#      define fdopen(fd,mode) NULL /* No fdopen() */
+#    endif
+#  endif
+#endif
+
+#ifdef __50SERIES /* Prime/PRIMOS */
+#  define OS_CODE  0x0F
+#endif
+
+#ifdef TOPS20
+#  define OS_CODE  0x0a
+#endif
+
+#if defined(_BEOS_) || defined(RISCOS)
+#  define fdopen(fd,mode) NULL /* No fdopen() */
+#endif
+
+#if (defined(_MSC_VER) && (_MSC_VER > 600))
+#  define fdopen(fd,type)  _fdopen(fd,type)
+#endif
+
+
+/* Common defaults */
+
+#ifndef OS_CODE
+#  define OS_CODE  0x03  /* assume Unix */
+#endif
+
+#ifndef F_OPEN
+#  define F_OPEN(name, mode) fopen((name), (mode))
+#endif
+
+/* functions */
+
+#ifdef HAVE_STRERROR
+extern char *strerror OF((int));
+#  define zstrerror(errnum) strerror(errnum)
+#else
+#  define zstrerror(errnum) ""
+#endif
+
+#if defined(pyr)
+#  define NO_MEMCPY
+#endif
+#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
+/* Use our own functions for small and medium model with MSC <= 5.0.
+ * You may have to use the same strategy for Borland C (untested).
+ * The __SC__ check is for Symantec.
+ */
+#  define NO_MEMCPY
+#endif
+#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
+#  define HAVE_MEMCPY
+#endif
+#ifdef HAVE_MEMCPY
+#  ifdef SMALL_MEDIUM /* MSDOS small or medium model */
+#    define zmemcpy _fmemcpy
+#    define zmemcmp _fmemcmp
+#    define zmemzero(dest, len) _fmemset(dest, 0, len)
+#  else
+#    define zmemcpy memcpy
+#    define zmemcmp memcmp
+#    define zmemzero(dest, len) memset(dest, 0, len)
+#  endif
+#else
+extern void zmemcpy  OF((Bytef* dest, const Bytef* source, uInt len));
+extern int  zmemcmp  OF((const Bytef* s1, const Bytef* s2, uInt len));
+extern void zmemzero OF((Bytef* dest, uInt len));
+#endif
+
+/* Diagnostic functions */
+#ifdef DEBUG
+#  include <stdio.h>
+extern int z_verbose;
+extern void z_error    OF((char *m));
+#  define Assert(cond,msg) {if(!(cond)) z_error(msg);}
+#  define Trace(x) {if (z_verbose>=0) fprintf x ;}
+#  define Tracev(x) {if (z_verbose>0) fprintf x ;}
+#  define Tracevv(x) {if (z_verbose>1) fprintf x ;}
+#  define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
+#  define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
+#else
+#  define Assert(cond,msg)
+#  define Trace(x)
+#  define Tracev(x)
+#  define Tracevv(x)
+#  define Tracec(c,x)
+#  define Tracecv(c,x)
+#endif
+
+
+typedef uLong (ZEXPORT *check_func) OF((uLong check, const Bytef *buf,
+                                        uInt len));
+voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
+void   zcfree  OF((voidpf opaque, voidpf ptr));
+
+#define ZALLOC(strm, items, size) \
+           (*((strm)->zalloc))((strm)->opaque, (items), (size))
+#define ZFREE(strm, addr)  (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
+#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
+
+#endif /* _Z_UTIL_H */