Help assembling raw ROM dumps into an emulator image

[TheRedEye]

Jaguar is totally foreign to me, I need some help.

 

I just dumped EPROMs off of a couple Jag protos (of released games, don't get too excited), but I don't know how to assemble them into an image. Each has four EPROMs, and I tried combining the four in order and putting a .j64 extension at the end, but it just crashes Virtual Jaguar.

 

I can send the raw dumps if it's difficult/tricky to explain?

[+Mitch]

It's been a while but if I remember correctly the BINs are odd/even interleaved. I think there was an old Atari tool that handled that but your eprom programmer may have that functionality as well.

 

Mitch

[Zerosquare]

Yeah they're interleaved. Since the standard cartridge bus width is 32 bits, it's probably four 8-bit EPROMs, with one for bits 7..0, one for bits 15..8, one for bits 23..16 and the last one for bits 31..24.

 

Just post the raw dumps. There are several persons here who can figure out which EPROM stores which bits, and combine them.

Edited August 31, 2016 by Zerosquare

[omf]

there is a program that can merge the files that is with the atari jaguar dev kit

i think it ill only work on a 32 bit operating system however, so you may need to VM it to get it to run on 64 bit

                +-------------------------------------------+
                ¦ File Split/Merge Utility for ROM Creation ¦
                ¦       Copyright (c)1994 Atari Corp.       ¦
                ¦               Version: 1.1                ¦
                +-------------------------------------------+
+----------------------------------------------------------------------------+
¦                                  USAGE                                     ¦
+----------------------------------------------------------------------------+

To Split:
   romsplit filename[.rom] [-bw24pe]

     -b: Create four files U1-4 for 8-bit wide ROMs (default).
     -w: Create files LO/HI for 16-bit wide ROMs.
     -2: Create files for 2 Meg Cartridges (default).
     -4: Create files for 4 Meg Cartridges.
     -p: Pad first 8k bytes with $FF on split. Skip first 8192 bytes on merge.
     -e: Extend split output to full cartridge space.
         (default is to go to next higher power of two).
To Merge:
   romsplit filename[.u1|.u2|.u3|.u4|.hi|.lo]

remove the txt file extension to make an exe

RomSplit.Exe.txt

Edited August 31, 2016 by omf

[rayik]

Using romsplit to split to combine rom dumps:

 

Put the .hi / .lo files or .u1 / .u2 / .u3 / .u4 files into the romsplit directory. Command is:

 

romsplit.exe gamerom

No extension at end of gamerom name.

 

Omf is correct in that it only works on 32bit windows system. It does work on win10 32 bit.

[TheRedEye]

I'll post the raws in...about a week or so. Sorry, I forgot to get them off of my office computer before I left yesterday, and I'm flying out of town tonight.

[TheRedEye]

Okay I'm back! Here are the raw ROMs, I hope someone can put these together and check against the final versions.

 

https://www.dropbox.com/s/k470yf8jjogrsor/JaguarProtos.zip?dl=0

[Zerosquare]

The Tempest 2000 ROMs are bit-identical to the released version, so it's not a proto, sorry

 

The Club Drive ROMs are more interesting (it's 512 kB, the released version is 2 MB), but the v4.bin file is corrupted: all the bytes are 0x08. Can you try dumping it again?

 

There are some graphics in it:

[TheRedEye]

Redumped that ROM and re-uploaded the set: https://www.dropbox.com/s/k470yf8jjogrsor/JaguarProtos.zip?dl=0

[Zerosquare]

Here it is:

Club Drive proto.zip

 

Looks like it's indeed an early Club Drive proto

 

I've not tested it extensively, but it appears to run under emulation: