simon-frankau / head-over-heels

A reverse-engineering of the classic isometric ZX Spectrum game "Head Over Heels"

Head Over Heels reverse engineered

This is my attempt to reverse engineer the ZX Spectrum version of Head Over Heels. I started with a memory image, disassembled it, and then tidied up the disassembly, at each stage checking that it will still recompile back to the original memory image.

For the sprites, etc., I've written tools to dump out the contents.

I don't expect the contents of this repo to be particularly intelligible to anyone else, being in-progress work of a project basically for my own amusement. Good luck!

Tools needed

This repo needs:

• GNU Make for the Makefile
• lua for the scripts
• gcc or the like for the modified Z80 dissassembler, diss.c
• zasm for the assembler
• scr2gif for the loading screen
• dot from GraphViz for the call graphs

License

I'm reverse-engineering someone else's code, and using someone else's disassembler to do it. I wouldn't worry about a license!