V6.7: 10-Apr-2022 by wavemotion-dave

* Casio PV-2000 support (.pv rom files) - all 11 games run fine.
* Improved emulated memory access to gain almost 1 frame of performance.
* Numerous small cleanups under the hood.

Makefile

@@ -9,7 +9,7 @@ include $(DEVKITARM)/ds_rules
 
 export TARGET		:=	ColecoDS
 export TOPDIR		:=	$(CURDIR)
-export VERSION		:=  6.6
+export VERSION		:=  6.7
 
 ICON 		:= -b $(CURDIR)/logo.bmp "ColecoDS $(VERSION);wavemotion-dave;https://github.com/wavemotion-dave/ColecoDS" 
 

README.md

@@ -13,8 +13,8 @@ to be very close to the CV in terms of hardware.
 Often only the IO/Memory was different. As such,
 ColecoDS also allows cartridge and sometimes tape
 games from "cousin" systems to be played - 
-namely the Sord M5, the Memotech MTX, the SG-1000
-and the MSX1.
+namely the Sord M5, the Memotech MTX, the SG-1000/3000,
+the Casio PV-2000 and the venerable MSX1.
 
 If you want to play Sord M5 games, you will
 also need an 8k sordm5.rom bios in the same
@@ -32,6 +32,8 @@ ADAM computer emulation requires eos.rom and writer.rom
 
 Spectravideo SVI emulation requires svi.rom BIOS
 
+Casio PV-2000 requires pv2000.rom BIOS
+
 Features :
 -----------------------
 * Colecovision game support (.rom or .col files)
@@ -42,6 +44,7 @@ Features :
 * Sega SC-3000 game support (.sc roms)
 * Sord M5 game support (.m5 roms) - requires sordm5.rom BIOS
 * Spectravideo SVI support (.cas) - requires svi.rom BIOS
+* Casio PV-2000 support (.pv roms) - requires pv2000.rom BIOS
 * MSX1 game support (.msx or .rom or.cas) up to 512K 
 * Memotech MTX game support (.mtx or .run) - single loader games only.
 * Full Controller button mapping and touch-screen input.
@@ -150,6 +153,10 @@ Sega SC-3000 Compatibility :
 -----------------------
 This emulator supports .sc files as ROM only (not cassettes) but ColecoDS will support the amazing SC-3000 Survivors Multi-Cart and MEGA-Cart. Strongly prefer the Multi-Cart as it's smaller and contains the same selection of tape games. Just rename the 2MB or 4MB binary as .sc to load in ColecoDS.
 
+Casio PV-2000 Compatibility :
+-----------------------
+This emulator supports .pv files as ROM only (not cassettes).  Rename any .bin files you find as .pv so the emulator will load them correctly.
+
 Controllers :
 -----------------------
 You can map buttons to either P1 or P2 controllers. 
@@ -224,6 +231,11 @@ would personally try them:
 
 Versions :
 -----------------------
+V6.7: 10-Apr-2022 by wavemotion-dave
+* Casio PV-2000 support (.pv rom files) - all 11 games run fine.
+* Improved emulated memory access to gain almost 1 frame of performance.
+* Numerous small cleanups under the hood.
+
 V6.6: 07-Apr-2022 by wavemotion-dave
 * CAS icon implemented to provide a menu of cassette-based actions including swapping tape/disk for multi-load games.
 * SC-3000 emulated more fully with support for the SC-3000 Survivors Multi-Cart.

arm9/source/colecoDS.c

@@ -108,6 +108,7 @@ u8 bSordBiosFound = false;
 u8 bMSXBiosFound = false;
 u8 bSVIBiosFound = false;
 u8 bAdamBiosFound = false;
+u8 bPV2000BiosFound = false;
 
 volatile u16 vusCptVBL = 0;    // We use this as a basic timer for the Mario sprite... could be removed if another timer can be utilized
 
@@ -1756,10 +1757,6 @@ void colecoDSInit(void)
   dmaVal  = *(bgGetMapPtr(bg0b)+24*32);
   dmaFillWords(dmaVal | (dmaVal<<16),(void*)  bgGetMapPtr(bg1b),32*24*2);
 
-  //  Put out the initial messages looking for a file system
-  AffChaine(2,6,0,"SEARCH FAT SYSTEM   ...   ");
-  AffChaine(2,7,0,"FAT  SYSTEM FOUND   !");
-
   //  Find the files
   colecoDSFindFiles();
 }
@@ -1975,6 +1972,7 @@ void LoadBIOSFiles(void)
     bMSXBiosFound = false;
     bSVIBiosFound = false;
     bAdamBiosFound = false;
+    bPV2000BiosFound = false;
 
     // -----------------------------------------------------------
     // First load Sord M5 bios - don't really care if this fails
@@ -1997,6 +1995,7 @@ void LoadBIOSFiles(void)
     if (fp == NULL) fp = fopen("/data/bios/pv2000.rom", "rb");
     if (fp != NULL)
     {
+        bPV2000BiosFound = true;
         fread(PV2000Bios, 0x4000, 1, fp);
         fclose(fp);
     }
@@ -2157,13 +2156,15 @@ int main(int argc, char **argv)
     // ---------------------------------------------------------------
     if (bColecoBiosFound)
     {
-        u8 idx = 9;
+        u8 idx = 6;
         AffChaine(2,idx++,0,"LOADING BIOS FILES ..."); idx++;
         AffChaine(2,idx++,0,"coleco.rom BIOS FOUND"); idx++;
         if (bMSXBiosFound) {AffChaine(2,idx++,0,"msx.rom BIOS FOUND"); idx++;}
         if (bSVIBiosFound) {AffChaine(2,idx++,0,"svi.rom BIOS FOUND"); idx++;}
         if (bSordBiosFound) {AffChaine(2,idx++,0,"sordm5.rom BIOS FOUND"); idx++;}
+        if (bPV2000BiosFound) {AffChaine(2,idx++,0,"pv2000.rom BIOS FOUND"); idx++;}        
         if (bAdamBiosFound) {AffChaine(2,idx++,0,"eos.rom and writer.rom FOUND"); idx++;}
+        AffChaine(2,idx++,0,"SG-1000/3000 AND MTX BUILT-IN"); idx++;
 
         AffChaine(2,idx++,0,"TOUCH SCREEN / KEY TO BEGIN"); idx++;
 

arm9/source/colecoDS.h

@@ -5,7 +5,7 @@
 #include <string.h>
 #include "cpu/z80/Z80_interface.h"
 
-#define VERSIONCLDS "6.6"
+#define VERSIONCLDS "6.7"
 
 //#define DEBUG_Z80   YES
 //#define FULL_DEBUG