Search found 4 matches

by nitrofurano
Fri Aug 31, 2018 1:29 pm
Forum: General Discussions
Topic: How to make a BASIC compiler?
Replies: 28
Views: 35429

Re: How to make a BASIC compiler?

i was trying to help extending Boriel’s ZX-Basic Compiler to 6502 - my humble efforts are at https://gitlab.com/nitrofurano/6502basiccompiler - the official Boriel’s ZX-Basic Compiler git repository is at https://bitbucket.org/zxbasic/zxbasic - whatever help on this is indeed hugely appreciated ...
by nitrofurano
Tue Aug 28, 2018 2:21 pm
Forum: Programming
Topic: how can we define different org addresses on xa65?
Replies: 2
Views: 3380

how can we define different org addresses on xa65?

hi everyone!

on pasmo (z80) i use to define different org addresses along the code (like org $4000, org $5000, etc.) , and all the empty data lasts there in the exact addresses when compiled

i’m strugglng a lot to do the same on xa65 (6502) - when i set, for example *=$1000 , *=$1010, *=$F800 and ...
by nitrofurano
Tue Aug 28, 2018 1:22 pm
Forum: Newbies
Topic: trying to target classic 6502 arcade machines with xa65
Replies: 2
Views: 2161

Re: trying to target classic 6502 arcade machines with xa65

thanks! i’m really a 6502 newbie, and i had no idea what these vectors are - they are actually mentioned at https://raw.githubusercontent.com/mamedev/mame/master/src/mame/drivers/circus.cpp - and saying that the last rom placed at $1E00 is mirrored at $FE00 as well, having these vector bytes - now ...
by nitrofurano
Mon Aug 27, 2018 3:43 pm
Forum: Newbies
Topic: trying to target classic 6502 arcade machines with xa65
Replies: 2
Views: 2161

trying to target classic 6502 arcade machines with xa65

hi everyone! as i tried some experiences on over 100 z80-based classic arcade machines (using mame emulator), i started to do the same on 6502-based ones - for now i'm just trying to "poke" something in the display area, but nothing appears there - do anyone can see what is happening there? thanks ...