Interface 1bis file not found error

Purchased Interface 1 bis for the ZX Spectrum. There are plenty information about it and installing and preparing SD card on manufacturers site But I have encountered a problem – could not start it and was allways getting “file not found” error.Did all steps described in troubleshooting video Loaded OpSys from PC using LOAD command, program loads OK. But when I do NEW and […]

Some links for ZX Assemlby programming

Making games in ZX Spectrum assembly book ( russian lang.): How to write ZX Spectrum games tutorial in English: Spectrum ROM routines: Z80 instruction set: Group in FB dedicated for Z80 assembly programming: WOS forum link: Another forum (ru): Some more books (ru):