messroms.txt ------------ information about * messroms utility * dumping roms * saving roms * transfering data to pc files ----- main.c, roms.h, comp.h messroms tool dumppc.c, dumppc.txt, dumppc.exe msdos utility for dumping pc rom area (also binary, because with djgpp you can't create a 8086 based pure msdos utility) dumpat.c, dumpat.txt, dumpat.exe msdos utility for dumping at boot area read6530.c contains the info for dumping mos rriot 6530 rddil24.c contains the info for dumping mos rom6332 or similar 24 pin roms read6332.c contains the info for dumping mos rom 6332 rddil32.c this is more a bugfix for my eprommer software cbm.txt info for dumping, saving, transfering commodore computers and devices c64savec.prg program to copy c64 character to basic area for later saving svision.txt info for building an adapter for supervision cartridge to 27c4001 eprom pinout pc1500.txt pinout of sharp pc1500/pc1500a/trs80pc2 rom tc.txt pinout of TC531000 (128k x 8 rom) TC571001 (128k x 8 eprom) cvhp48.c conversion utility for hp48 ascii/romdump dumps into binary messroms utility ---------------- motivation: help identifying already known roms, bad dumps, and give info to convert roms into the needed format. messroms --0x0000000 identify crc messroms directory identifies files in directory messroms zipfile.zip identifies files in zip archiv dumping roms ------------ most roms are dumped with eprom burners. There are many variations of eprom burners outside, each supported a large range of eprom chip types. I will give only a few tips for special chips: Always use the romcmp utility to identify bad dumps. Dump several times, and compare if the dumped data is the same. Weak dumps: had different dumps with watara supervision cartridges when oe, ce was not switched when reading MOS6332: rom 4 kbyte 8bit, DIL 24 package for pinout look into mess/messroms/rddil24.c or read6332.c to allow dumping as 2732 build an adapter exchanging pin 18 and 20 Signetics C19081, C19082 (24 pin dil) look into rddil24.c CN45048N look into rddil24.c Bally 9316 (24 pin dil) look into rddil24.c generic 24 pin dil: you might find an idea for dumping in rddil24.c EPROM DIL 32 PIN: dumping as 278001 should be save rom/eprom in epoxy: often you can see the wire into the epoxy. These are in the same ordering as the pinout of the chip (helped finding out watara super vision cartridge pinout) soldered roms/eproms, and you can't or want unsolder them: wire an adapter with 2 sockets (a cheap one to place on top of the eprom, and another one for the eprommer) cut 1 of the power lines with a sharp knife solder socket on 2 points over the eprom for mechanical stability now you should be able to read it out unsolder the piggyback socket reconnect the cut pin MOS6530: rom, ram, input, output timer difficult to read look into mess/messroms/read6530.c maybe you can wire an adapter for an eprommer and read it as 27128 (a0 simulating clock) you have to identify the rom, ram, io area in the usually 8kbyte dumped data ram 64 bytes 0xff, io 16 bytes misc data, rom 1kbyte, unused depends on your hardware in mine 0 PIC1655 info at www.microchip.com: technical reference manual and programming reference manual available could be protected (you read protected data, with info lost) reading of mask programmed chips? PIC16C55 and PIC1655(NMOS) differences? SC61860: Sharp Pocket Computer internal rom of the cpu not known if it is accessible on the pinout TC531000 (128k x 8 mask rom) look into mess/tools/messroms/tc.txt TC571001 (128k x 8 eprom ) look into mess/tools/messroms/tc.txt Sharp PC1500, PC1500A Tandy TRS80 PC-2 ---------------- look into mess/tools/messroms/pc1500.txt for rom pinout RCA Studio 2 and cartridges look at Paul Robson's Studio2 page at www.classicgaming.com/studio2 Watara Supervision Cartridges look into mess/tools/messroms/svision.txt for building an adapter Saving roms ----------- Some dump roms with the help of rom sockets in computer. E.g. pc network adapter to plug in an 8kbyte rom in its bootrom socket and read it. Sometimes it is not possible to get the single chips for reading. * you may not or can not open the appliances * roms are soldered directly into the board and you cannot unsolder them * roms are in a smd package with very small place between pins .... Many roms are complete visible to cpu. So you can read them out with programs. IBMPC ----- most bios, graphics, harddisk, ethernet bootroms are complete visible. Character roms in pre EGA graphics adapters are not visible. Flash roms of modern pcs not complete in the small 256 kbyte PC realmode area. Some special roms (deskmate of tandy1000) are not visible in the small 256kbyte area. You can used msdos debug, or any other debugger to save there roms: c0000-c7fff typical EGA,VGA c8000-c9fff typical PC harddisk controller f6000-fdfff BASIC fe000-fffff PC bios f0000-fffff bigger bios In dumppc.zip you find a msdos utility dumping the complete c0000-fffff area. VAMPIRE warning vampire extracts only the basic and the bios areas, and therefor does incomplete dumps on many pcs! (ibm pcjr, ibm xt, ibm at, tandy 1000hx, tandy 2500xl, at's ) IBMAT ----- This saves the boot area of intel 386 compatibles at's (0xfff00000-0xfffffffff) Should work with intel 286 compable at's (0xf00000-0xffffff). Hopefully works with those 286 based xt's and tandy's. Sharp Pocket Computer --------------------- look into src/cpu/sc61860/readpc.c Internal rom only accessible in machine language HP48S/SX/G/GX ------------- In some emulators (x48) you can find instructions and a tool for transmitting the rom to a computer with rs232 (9600 8N1 with kermit? protocoll). cvhp48.c converts this dump into a binary. Transfering data to another computer ------------------------------------ ?