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Old 29th March 2012, 11:05 PM
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spoondiddly spoondiddly is offline
Join Date: Jun 2004
Steve Ellis, who originally created the emulator, sent an email to clarify how the original Spectrum ROM was set up. Since it wasn't included and the copyright was lifted by Amstrad I've included the complete one with the patch.
Here's the letter though, and be certain to check out Crash Lab. Really!
Originally Posted by Steve Ellis

I see various posts about this on the web now. I thought I'd clarify the point about spec_rom.seg.rz - the contents of this file fill the bottom 16kb of the Spectrum's memory. On the original Spectrum, the bottom 16kb would have included the whole operating system (the BASIC programming language, functions for loading from and saving to cassettes, etc.). Since the ROM is copyrighted we weren't able to use it. However, some of the games that we were emulating wanted to call one or two Spectrum ROM functions. The solution to this was to create an empty ROM (99.9% filled with NOP's), but with newly-created (copyright-free) replacements for the few short functions that the games needed to call. The games should run with this minimal replacement ROM.

BTW, if you'd like to send any people in the direction of @CrashLab or, I'd be grateful. We're going to release something later this year that hopefully should appeal to fans of "old-school" games.


Steve Ellis
Crash Lab
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