Search found 10 matches

by Overkill
Mon Apr 01, 2019 2:41 pm
Forum: NESdev
Topic: Macros that define visible labels in ca65 and ASM6
Replies: 4
Views: 5156

Re: Macros that define visible labels in ca65 and ASM6

Just tested here, but if you define the symbols you wish to use in the macro before the macro is run, changes made to that symbol with = will apply to the outside definition of that symbol, rather than being locals. According to the ASM6 readme documentation symbols created with '=' can be reused. a...
by Overkill
Sat Aug 01, 2015 9:11 pm
Forum: General Stuff
Topic: PC Engine dev - Memory Base 128?
Replies: 4
Views: 2434

Re: PC Engine dev - Memory Base 128?

Oh, thank you for sharing that! :D That thread gives enough idea of how to read/write to the MB128 through the joypad port, which is excellent. It seems the filesystem structure is still unknown, aside from the initial header after formatting. Still, you could probably just decide on your own format...
by Overkill
Sat Aug 01, 2015 3:50 pm
Forum: General Stuff
Topic: PC Engine dev - Memory Base 128?
Replies: 4
Views: 2434

PC Engine dev - Memory Base 128?

Hmm, recently I discovered the Memory Base 128 , an underutilized external memory device for the PC Engine / TurboGrafx-16. I know that it's a memory device that attaches through the controller port, which can hold up to 128 KB of save memory powered by AA batteries. This is ideal because it connect...
by Overkill
Tue Jul 14, 2015 6:44 pm
Forum: NESemdev
Topic: em-fceux - FCEUX for the web
Replies: 19
Views: 8335

Re: em-fceux - FCEUX for the web

This is very cool! I had actually discovered this earlier today while trying to see if someone had already made an emscripten port of FCEUX, and lo and behold, somebody did! If it's not too hard to get going, I'd be interested in contributing / making a fork with the following features: - more class...
by Overkill
Wed Apr 01, 2015 9:46 pm
Forum: GBDev
Topic: Can Everdrive-GB run homebrew?
Replies: 24
Views: 11745

Re: Can Everdrive-GB run homebrew?

If you need to reset the Game Boy CPU of the Super Game Boy from software, it should be possible. You could run code uploaded to the SNES RAM via SGB commands: DATA_TRN / DATA_SND ( DATA_SND is more efficient for small transfers, since you don't need to setup VRAM to send the message, you just use t...
by Overkill
Thu Aug 18, 2011 4:54 pm
Forum: NESdev
Topic: nel - Another 6502 compiler for the NES.
Replies: 15
Views: 7209

Alrighty, there have been a few updates to nel, as of late that will make it a little bit easier to use (hopefully). Recently started working on it again because a person that I know from online was recently trying to compile nel's compiler source in the most recent version of D2 (There were a few d...
by Overkill
Sun Mar 06, 2011 9:17 pm
Forum: NESdev
Topic: nel - Another 6502 compiler for the NES.
Replies: 15
Views: 7209

Okay, thanks for reporting that Gilbert, just made a critical fix to the nel 0.1 release, which fixes a dumb std.file.FileException being thrown. Download nel 0.1.1 and the program should actually run. Maybe a .bank 8K or .bank 16K or even more for bank-size changes? That way you can keep "bank...
by Overkill
Sun Mar 06, 2011 8:59 pm
Forum: NESdev
Topic: nel - Another 6502 compiler for the NES.
Replies: 15
Views: 7209

I am too lazy to read the manual at the moment (the non-assembly codes hurt my brain already but people unfamiliar with assembly may find this easier to handle) and I tried to assemble the test rom but failed, with some garbage error message: http://i488.photobucket.com/albums/rr249/gilbot/nel_erro...
by Overkill
Sun Mar 06, 2011 8:55 pm
Forum: NESdev
Topic: nel - Another 6502 compiler for the NES.
Replies: 15
Views: 7209

Hey guys, thanks for the replies. I'll try and answer them in time. Prepare for a large post. ManicGenius : I was inspired by Pascal and Python (although unlike Python, no indentation rules, or any high-levelness) to an extent, and some of it was just "creative decision". I can see how it ...
by Overkill
Sun Mar 06, 2011 3:11 pm
Forum: NESdev
Topic: nel - Another 6502 compiler for the NES.
Replies: 15
Views: 7209

nel - Another 6502 compiler for the NES.

Hey there, my name's Overkill. I've been lurking NESdev for a bit, hanging out on the IRC, and making a homebrew project. I think a few people on #nesdev may have heard about my assembler sideproject already, but I've recently made enough progress on it that I think it's probably okay to release. On...