Spectrum Computing

i guess the absence of answers here is because nobody wants to be the first telling you that you abolutely have to learn CALL and RET to do what you want. ;-) the trick with loading the whole RAM is exactly that: it replaces return address on a stack with another one, so when loader code finally per...

tl;dr (here, so you don't have to decipher my wall of text ;-): yeah, i'd like to get in touch. i will hardly became a "full-featured" maintainer, but may try to add at least some simple API. i'd really like to step in, but i don't think that i'll have enough time and energy for that. i kn...

yeah, same here. for the worst case i have all review pages downloaded (and i am updating that archive once in a while, it is automatic process anyway), so most of the data can be restored. but with proper API we could show reviews in-place here, for example (or on any other site with ZXDB support)....

offtopic ;-) i really want to say "thank you alot!" to Lee and others in WoS website team. because i found this site (and ZXDB) only after they rolled up "new WoS", which can't even work with javascript turned off. really great work there. i stoped caring about WoS forums after t...

sorry for posting this here, but i couldn't find a better subforum for this. if this better fits for some another subforum, then please, move this topic to where it belongs. now, closer to the main business. is there some way to download and update Spectrum 2.0 (that site with user-written reviews ;...

and just for fun, i added ZXNext Z80N support to liburasm (and to UrAsm assembler).

sorry for shameless self-promotion (but nobody knows about my Z80 emulation core anyway, so i had to do it myself ;-) Well, not really to anyone :)) I know and remember. And I remember how you set up Linux for me 5-10 years ago by remote and the emulator started :) Since then, ownership of Linux ha...

so, i fixed SCF/CCF bug (it was actually a bug in interrupt acknowledge code) -- now Zymosis pass all z80test tests! i also removed C UBs (i hope), so the code should be standard-compliant. and replaced conditional checks in branch/call opcodes with branch-less computations. thank you all for this f...

upd: the bug with SCF/CCF was actually in interrupt acknowledgement code, so Zymosis passes all tests now.

Firefly is by far my favorite Joffa’s game. Pretty brilliant concept and implementation. yeah, i absolutely agree. and it aged very well: it still looks fantastic, and insanely addictive. i never really liked Cobra or Green Beret (excellent technical implementation, but the gameplay is not my cup o...

yeah, that may be added by me to have some more time to do things, it is hard to tell now. as i said, i lost most of my notes and oridinal disassemblies, there's only the "final" extracted engine left. if i'll find my original notes, i'll double-check. the blitter itself doesn't really nee...

sorry for necroposting, but i happened to stumble upon Joffa's name here, and simply couldn't stop myself. i reversed Firefly engine around 10 years ago (man, i'm old now!), extracted map blitting parts from it, and even made a simple editor. i intended to use that in my game, but never wrote it. it...

thank you! i'm basically just playing games with ZXEmuT these days (and as you can see i never really put my hands on fixing SCF/CCF emulation), so not much work is going into the code. but Zymosis is "feature complete" anyway, and ZXEmuT is pending Yet Another Rewrite (as i am not happy w...

hi. just found this site (yes, i am that slow), and thought that i can share my Z80 CPU Emulation library with you. libzymosis (Zymosis) is a standalone Z80 emulation library that can be used when you need to emulate one or more Z80 CPUs. it has almost-perfect emulation (the only test it failed is S...

sorry for shameless self-promotion (but nobody knows about my Z80 emulation core anyway, so i had to do it myself ;-): Zymosis (and ZXEmuT emulator based on it) only failing SCF/CCF tests. one test failed in "full", no failed tests in "memptr".