added 12-in-1 mapper to carthw

git-svn-id: file:///home/notaz/opt/svn/PicoDrive@369 be3aeb3a-fb24-0410-a615-afba39da0efa

Pico/Cart.c

@@ -640,20 +640,29 @@ void PicoCartDetect(void)
     SRam.eeprom_bit_out= 7;
   }
 
+  // SVP detection
+  else if (name_cmp("Virtua Racing") == 0 ||
+           name_cmp("VIRTUA RACING") == 0)
+  {
+    PicoSVPStartup();
+  }
+
+  // Detect 4-in-1 and 12-in-1
+  else if ((name_cmp("ROBOCOP 3") && Pico.romsize == 0x200000) ||
+    (rom_strcmp(0x160, "FLICKY") && Pico.romsize == 0x200000))
+  {
+    carthw_12in1_startup();
+  }
+
   // Some games malfunction if SRAM is not filled with 0xff
   if (name_cmp("DINO DINI'S SOCCER") == 0 ||
       name_cmp("MICRO MACHINES II") == 0)
+  {
     memset(SRam.data, 0xff, sram_size);
+  }
 
   // Unusual region 'code'
   if (rom_strcmp(0x1f0, "EUROPE") == 0)
     *(int *) (Pico.rom+0x1f0) = 0x20204520;
-
-  // SVP detection
-  if (name_cmp("Virtua Racing") == 0 ||
-      name_cmp("VIRTUA RACING") == 0)
-  {
-    PicoSVPStartup();
-  }
 }
 

Pico/Memory.c

@@ -303,19 +303,8 @@ static void OtherWrite8End(u32 a,u32 d,int realsize)
 #endif
   elprintf(EL_UIO, "strange w%i: %06x, %08x @%06x", realsize, a&0xffffff, d, SekPc);
 
-  if(a >= 0xA13004 && a < 0xA13040) {
-    // dumb 12-in-1 or 4-in-1 banking support
-    int len;
-    a &= 0x3f; a <<= 16;
-    len = Pico.romsize - a;
-    if (len <= 0) return; // invalid/missing bank
-    if (len > 0x200000) len = 0x200000; // 2 megs
-    memcpy(Pico.rom, Pico.rom+a, len); // code which does this is in RAM so this is safe.
-    return;
-  }
-
   // for games with simple protection devices, discovered by Haze
-  else if ((a>>22) == 1)
+  if ((a>>22) == 1)
     Pico.m.prot_bytes[(a>>2)&1] = (u8)d;
 }
 

Pico/carthw/carthw.c

@@ -0,0 +1,52 @@
+#include "../PicoInt.h"
+
+/* 12-in-1 */
+static unsigned int carthw_12in1_read16(unsigned int a, int realsize)
+{
+	// ??
+	elprintf(EL_UIO, "12-in-1: read [%06x] @ %06x", a, SekPc);
+	return 0;
+}
+
+static void carthw_12in1_write8(unsigned int a, unsigned int d, int realsize)
+{
+	int len;
+
+	if (a < 0xA13000 || a >= 0xA13040) {
+		elprintf(EL_ANOMALY, "12-in-1: unexpected write [%06x] %02x @ %06x", a, d, SekPc);
+	}
+
+	a &= 0x3f; a <<= 16;
+	len = Pico.romsize - a;
+	if (len <= 0) {
+		elprintf(EL_ANOMALY, "12-in-1: missing bank @ %06x", a);
+		return;
+	}
+
+	memcpy(Pico.rom, Pico.rom + 0x200000 + a, len);
+}
+
+static void carthw_12in1_reset(void)
+{
+	carthw_12in1_write8(0xA13000, 0, 0);
+}
+
+void carthw_12in1_startup(void)
+{
+	void *tmp;
+
+	elprintf(EL_STATUS, "12-in-1 mapper detected");
+
+	tmp = realloc(Pico.rom, 0x200000 + 0x200000);
+	if (tmp == NULL)
+	{
+		elprintf(EL_STATUS, "OOM");
+		return;
+	}
+	memcpy(Pico.rom + 0x200000, Pico.rom, 0x200000);
+
+	PicoRead16Hook = carthw_12in1_read16;
+	PicoWrite8Hook = carthw_12in1_write8;
+	PicoResetHook  = carthw_12in1_reset;
+}
+

Pico/carthw/carthw.h

@@ -17,3 +17,6 @@ unsigned int PicoSVPRead16(unsigned int a, int realsize);
 void PicoSVPWrite8 (unsigned int a, unsigned int d, int realsize);
 void PicoSVPWrite16(unsigned int a, unsigned int d, int realsize);
 
+/* 12-in-1 */
+void carthw_12in1_startup(void);
+

platform/linux/Makefile

@@ -44,7 +44,8 @@ OBJS += Pico/cd/Pico.o Pico/cd/Memory.o Pico/cd/Sek.o Pico/cd/LC89510.o \
 # Pico - sound
 OBJS += Pico/sound/sound.o Pico/sound/sn76496.o Pico/sound/ym2612.o Pico/sound/mix.o
 # Pico - carthw
-OBJS += Pico/carthw/svp/svp.o Pico/carthw/svp/Memory.o Pico/carthw/svp/ssp16.o Pico/carthw/svp/compiler.o
+OBJS += Pico/carthw/carthw.o Pico/carthw/svp/svp.o Pico/carthw/svp/Memory.o \
+		Pico/carthw/svp/ssp16.o Pico/carthw/svp/compiler.o
 # zlib
 OBJS += zlib/gzio.o zlib/inffast.o zlib/inflate.o zlib/inftrees.o zlib/trees.o \
 	zlib/deflate.o zlib/crc32.o zlib/adler32.o zlib/zutil.o zlib/compress.o zlib/uncompr.o

platform/win32/GenaDrive/Main.cpp

@@ -122,7 +122,8 @@ static LRESULT CALLBACK WndProc(HWND hwnd,UINT msg,WPARAM wparam,LPARAM lparam)
               "NJ: CZ80\n"
               "MAME devs: YM2612 and SN76496 cores\n"
               "Stéphane Dallongeville: Gens code, base of Fame/C (C68K), CZ80\n"
-              "Tasco Deluxe: SVP RE work\n",
+              "Tasco Deluxe: SVP RE work\n"
+              "Pierpaolo Prazzoli: info about SSP16 chips\n",
               "About", 0);
           return 0;
       }

platform/win32/GenaDrive/readme.txt

@@ -14,6 +14,14 @@ and the likes, as this emu was not meant to compete with them.
 For more info, visit http://notaz.gp2x.de/svp.php
 
 
+Releases
+--------
+
+1.40  - first release.
+1.40a - Tasco Deluxe's dithering fix.
+1.40b - Perspective fix thanks to Pierpaolo Prazzoli's info.
+
+
 Controls
 --------
 
@@ -32,7 +40,9 @@ Credits
 -------
 
 A lot of work on making SVP emulation happen was done by Tasco Deluxe, my
-stuff is a continuation of his.
+stuff is a continuation of his. Pierpaolo Prazzoli's information and his
+SSP1610 disassebler in MAME code helped a lot too.
+
 The original PicoDrive was written by fDave from finalburn.com
 
 This PicoDrive version uses bits and pieces of from other projects: