2 replies to this topic

[PiratSS]

Hi, I am writing an emulator on Z26 DirectX.

The problem is that I don't know the file structre of a simple Z26 cartrige.

Could somone give me a detailed information on this topic?

basically I am looking for file structure in bytes, here is example:

Byte 1=Game name
Byte 2=Game ver

etc.

Thanks in advance!

[liquid_sky]

z26?

[Nukey Shay]

Z26 is an emulator for 2600 rom files. I think that he's referring to the file structure of a 2600 cartridge. And the answer is: none. The cartridge dumps are just raw data written in 65xx binary (i.e. consisting of $00-$FF values). And unless a bankswitching scheme is used, you are limited to one 4k bank of rom (because the 6507 chip lacks the ability to use the high nybble of address high bytes).

I suggest examining existing source codes and disassemblies for examples...you can find many of them at The Dig (see 2600-Links). That site is undergoing maintenance...so it might be down at the moment.