Sorry, but I can personally only help if you assemble with the VASM assembler i use, and build with the scripts I provide.
otherwise, it could be any number of things I do not know about that is causing the problem.
Search found 473 matches
- Fri Feb 03, 2023 4:53 am
- Forum: ZX Spectrum Assembly Programming
- Topic: Tried getting a graphic to appear on the screen. Nothing appears.
- Replies: 3
- Views: 3503
- Sat Jan 14, 2023 1:10 pm
- Forum: Amstrad CPC Assembly Programming
- Topic: CPU Loop VBLANK/Raster Timing Synchronization
- Replies: 1
- Views: 5506
Re: CPU Loop VBLANK/Raster Timing Synchronization
Interrupts occur on the Amstrad CPC 6 times per frame, so if you want to do a mode/color switch for part of the screen that's your best option. If you want to do things with line level precision, then you need to calculate the time the beam is taking, I believe one 'NOP' takes the time of one Mode 1...
- Tue Jan 10, 2023 5:31 am
- Forum: General 6502 Programming
- Topic: Furby source code in 6502
- Replies: 0
- Views: 7476
Furby source code in 6502
The ASM source-code of the Furby has been released. (yes, that weird 90s noisy virtual pet thingy)
I believe the processor is a more limited version of the 6502, as all the code I've seen is 6502 compatible.
Have fun!
https://archive.org/details/furby-source
I believe the processor is a more limited version of the 6502, as all the code I've seen is 6502 compatible.
Have fun!
https://archive.org/details/furby-source
- Sat Dec 31, 2022 5:55 am
- Forum: General Off topic
- Topic: Questions about the book
- Replies: 2
- Views: 3034
Re: Questions about the book
No, the book does not cover game logic or platform specifics. The book is basically 3 examples from the simple series (hello world, Bitmap drawing, bitmap movement) on one platform (The simplest for each cpu), an introduction to the processor, and a description of each instruction in the processor, ...
- Wed Dec 14, 2022 9:37 am
- Forum: Master System & GameGear Assembly Programming
- Topic: Video: Lesson P29 - Hardware detection and Bank Switching on the Sega Mastersystem/GameGear
- Replies: 2
- Views: 9557
Re: Video: Lesson P29 - Hardware detection and Bank Switching on the Sega Mastersystem/GameGear
I don't think you'll be able to specify an org statement with a base over &FFFF You could try an Align statement to align to the next 16k boundary (align 14 should do it), The other alternative would be to split the project into multiple built binary files, and join the files using the binary co...
- Sun Nov 13, 2022 9:07 am
- Forum: Chibi-News!
- Topic: Book Update! I've released a few new versions of my existing books
- Replies: 0
- Views: 8263
Book Update! I've released a few new versions of my existing books
Firstly the second edition of 'Volume 1' is out now - this is basically the same as the 'Buyers Remorse' edition I've been distributing since around April, it contains the same updated Chapter 1 of 'Volume 2', and various tweaks to the content of the other chapters. No need to buy it if you have the...
- Tue Oct 25, 2022 7:58 am
- Forum: Amstrad CPC Assembly Programming
- Topic: Export RLE from akusprite editor
- Replies: 4
- Views: 4207
Re: Export RLE from akusprite editor
Sorry, but I don't think that RLE encoder is going to work for you, it was coded for ChibiAkumas, and designed to work at the pixel pair level in Mode 1 (for dithered images). It simply doesn't understand Mode 0, either from the point of view of encoding an image, or actually producing efficient res...
- Sat Oct 01, 2022 2:23 pm
- Forum: X68000 Assembly Programming
- Topic: How to restore text mode?
- Replies: 2
- Views: 4197
Re: How to restore text mode?
I think it's 768x512 high res mode. As I'm sure you know, there is no such thing as a text mode - all graphics modes have a text layer. The settings are on this page, but I think I made a mistake in the value for $E80028 before, which was causing the screen size to be wrong. https://www.chibiakumas....
- Thu Sep 29, 2022 11:12 pm
- Forum: Amstrad CPC Assembly Programming
- Topic: Double buffer demo
- Replies: 1
- Views: 3742
Re: Double buffer demo
That looks great! The animation looks really smooth, and there's lots going on on-screen. Out of interest, are you clearing the buffer and redrawing all objects each frame (how chibiakumas worked) or just what moved since the last buffer (I guess that could be faster) Anyway, It looks great! it remi...
- Sat Sep 24, 2022 1:22 am
- Forum: Amstrad CPC Assembly Programming
- Topic: Export RLE from akusprite editor
- Replies: 4
- Views: 4207
Re: Export RLE from akusprite editor
I don't really ever use 16 color mode so it's not had much testing.
If you provide the example source program, and the Akusprite file your trying to export, I can look and see what the problem is.
If you provide the example source program, and the Akusprite file your trying to export, I can look and see what the problem is.