#cc65 — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #cc65, aggregated by home.social.
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My #Linux hack for today:
alias bake='make'
Mmmmmmmm... baking assembler... (assembler crumble cake?)
#Programming #Coding #NoAI #Assembler #RetroProgramming #RetroComputing #FOSS #OpenSource #Baking #Cooking #gcc #ca65 #cc65 #make
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My #Linux hack for today:
alias bake='make'
Mmmmmmmm... baking assembler... (assembler crumble cake?)
#Programming #Coding #NoAI #Assembler #RetroProgramming #RetroComputing #FOSS #OpenSource #Baking #Cooking #gcc #ca65 #cc65 #make
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C64 Vibe Assembler: A C64 Game Built With AI Help
#Commodore64 #C64 #MOS6502 #Assembly #CC65 #VICEEmulator #RetroCoding #VSCodium #GameDev #8Bit
https://theoasisbbs.com/c64-vibe-assembler-a-c64-game-built-with-ai-help/?fsp_sid=781 -
C64 Vibe Assembler: A C64 Game Built With AI Help
#Commodore64 #C64 #MOS6502 #Assembly #CC65 #VICEEmulator #RetroCoding #VSCodium #GameDev #8Bit
https://theoasisbbs.com/c64-vibe-assembler-a-c64-game-built-with-ai-help/?fsp_sid=781 -
Advedit C64 Editor: Full-Screen Editing on the C64 Ultimate
#AdveditC64 #C64Ultimate #Commodore64 #cc65 #RetroDev #8bit #Homebrew #CProgramming
https://theoasisbbs.com/advedit-c64-editor-full-screen-editing-on-the-c64-ultimate/?feed_id=7341&_unique_id=69552ced10843 -
Advedit C64 Editor: Full-Screen Editing on the C64 Ultimate
#AdveditC64 #C64Ultimate #Commodore64 #cc65 #RetroDev #8bit #Homebrew #CProgramming
https://theoasisbbs.com/advedit-c64-editor-full-screen-editing-on-the-c64-ultimate/?feed_id=7341&_unique_id=69552ced10843 -
Retro Computing Nostalgia meet Open Source Software and Hardware with AgonLight and Neo6502, the incredible evolution of modern Retro computer projects https://olimex.wordpress.com/2025/07/23/retro-computing-nostalgia-meet-open-source-software-and-hardware/ #z80 #w65c02 #retrocomputing #retrogaming #pascal #cpm #forth #basic #cc65
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Retro Computing Nostalgia meet Open Source Software and Hardware with AgonLight and Neo6502, the incredible evolution of modern Retro computer projects https://olimex.wordpress.com/2025/07/23/retro-computing-nostalgia-meet-open-source-software-and-hardware/ #z80 #w65c02 #retrocomputing #retrogaming #pascal #cpm #forth #basic #cc65
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A little while ago I worked on making the Apple II cc65 runtime less dependant on the target. That work is now in cc65's git and it is possible to use 80 columns, lowercase characters and MouseText characters while building for `apple2` in addition to `apple2enh`.
This allows me to ship a single floppy image for most of my projects, with binaries running on anything from the ][+ to the IIgs, and still benefit from the extended features at runtime.
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A little while ago I worked on making the Apple II cc65 runtime less dependant on the target. That work is now in cc65's git and it is possible to use 80 columns, lowercase characters and MouseText characters while building for `apple2` in addition to `apple2enh`.
This allows me to ship a single floppy image for most of my projects, with binaries running on anything from the ][+ to the IIgs, and still benefit from the extended features at runtime.
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As of today, the #cc65 runtime now contains LZSA (1 and 2) and ZX02 decompressors: https://github.com/cc65/cc65/commit/333ac4b38317d9264f370178b44bc71cc8156272
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As of today, the #cc65 runtime now contains LZSA (1 and 2) and ZX02 decompressors: https://github.com/cc65/cc65/commit/333ac4b38317d9264f370178b44bc71cc8156272
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Visualizing Commander X16 User Port Signals with LEDs
#CommanderX16 #RetroComputing #UserPort #HardwareHacks #LEDprojects #cc65 #ModernRetro #LED #UserPort
https://theoasisbbs.com/visualizing-commander-x16-user-port-signals-with-leds/?feed_id=2853&_unique_id=6800fe2f2cac8 -
Visualizing Commander X16 User Port Signals with LEDs
#CommanderX16 #RetroComputing #UserPort #HardwareHacks #LEDprojects #cc65 #ModernRetro #LED #UserPort
https://theoasisbbs.com/visualizing-commander-x16-user-port-signals-with-leds/?feed_id=2853&_unique_id=6800fe2f2cac8 -
Разработка трёхмерного движка для Dendy/NES. Часть 1
В этой статье мы поговорим о разработке простого трёхмерного движка для консоли Dendy ( NES/Famicom ), который позволит выводить полигональные трёхмерные модели и проводить над ними базовые манипуляции (вращение, перемещение, трансформация, заливка полигонов и т. д.). В первом части мы обсудим реализацию вывода двумерных примитивов и организацию памяти в условиях ограничений NES.
https://habr.com/ru/companies/sberbank/articles/881056/
#c #python #разработка_игр #nes #dendy #gamedev #ретроконсоли #3dграфика #движок_игры #cc65
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Разработка трёхмерного движка для Dendy/NES. Часть 1
В этой статье мы поговорим о разработке простого трёхмерного движка для консоли Dendy ( NES/Famicom ), который позволит выводить полигональные трёхмерные модели и проводить над ними базовые манипуляции (вращение, перемещение, трансформация, заливка полигонов и т. д.). В первом части мы обсудим реализацию вывода двумерных примитивов и организацию памяти в условиях ограничений NES.
https://habr.com/ru/companies/sberbank/articles/881056/
#c #python #разработка_игр #nes #dendy #gamedev #ретроконсоли #3dграфика #движок_игры #cc65
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Forked the repo and commited my changes to get it to build with #cc65 in case anyone else is interested.
https://github.com/FozzTexx/reedsolomon/tree/cc65-compatible
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Forked the repo and commited my changes to get it to build with #cc65 in case anyone else is interested.
https://github.com/FozzTexx/reedsolomon/tree/cc65-compatible
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I’m so hooked to this, that I feel I waste my time on project, instead of doing something to earn money. At least I’m learning C as I go along. I wrote the interface part of a simple wifi manager for my serial card for #apple2 in #cc65. It is suppose to talk to zimodem firmware on the esp8266 in a way that seems native to the apple2. #retrocomputing
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I managed to rewrite my custom serial card firmware in #cc65 It’s way easier to work with strings in C compared to assembly. I had a minor hiccup with the pointers but I think finally got the grasp of them. Since I dont have any serial buffer but just one byte register, I found that using printf() with screen scroll actually cant catch up the serial speed. Using cputc() is doing well but no screen scroll. I ended up delaying the speed a bit on the esp8266 side and using printf(). #apple2
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I managed to rewrite my custom serial card firmware in #cc65 It’s way easier to work with strings in C compared to assembly. I had a minor hiccup with the pointers but I think finally got the grasp of them. Since I dont have any serial buffer but just one byte register, I found that using printf() with screen scroll actually cant catch up the serial speed. Using cputc() is doing well but no screen scroll. I ended up delaying the speed a bit on the esp8266 side and using printf(). #apple2
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@jos1264 Or you could just use any text editor you like (#vim works pretty fine with assembly code), one of the many cross-assemblers available (e.g. ca65 from #cc65 comes with an object-code format and a linker for that, which is awseome for organizing larger projects) and control your build with good old #make.
But hey, if using monsters based on #chromium and #javascript (vs-code) and a #java vm (kickassembler) feels "right" for you targeting this tiny old machine writing lean and efficient code ... 🤷♂️😏
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@jos1264 Or you could just use any text editor you like (#vim works pretty fine with assembly code), one of the many cross-assemblers available (e.g. ca65 from #cc65 comes with an object-code format and a linker for that, which is awseome for organizing larger projects) and control your build with good old #make.
But hey, if using monsters based on #chromium and #javascript (vs-code) and a #java vm (kickassembler) feels "right" for you targeting this tiny old machine writing lean and efficient code ... 🤷♂️😏
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@RogerBidon @root42 That makes sense to me. TBH, I didn't even know #GCC *could* target the #mos6502 until reading your toot.
Low-level optimization will always be hard, I mean, it's hard to map C to this architecture at all (e.g. because of the very small and "global" hardware stack and a complete lack of any sp-relative addressing).
I was tempted ever so often to use C for the #C64, but always ended up writing *everything* in assembly (just using #cc65's assembler and linker, having linkable object files is super nice!).
Will take this on my ideas list to try creating a "gcc-mos6502" port for #FreeBSD 😎
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@RogerBidon @root42 That makes sense to me. TBH, I didn't even know #GCC *could* target the #mos6502 until reading your toot.
Low-level optimization will always be hard, I mean, it's hard to map C to this architecture at all (e.g. because of the very small and "global" hardware stack and a complete lack of any sp-relative addressing).
I was tempted ever so often to use C for the #C64, but always ended up writing *everything* in assembly (just using #cc65's assembler and linker, having linkable object files is super nice!).
Will take this on my ideas list to try creating a "gcc-mos6502" port for #FreeBSD 😎
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@RogerBidon serious question, assuming you have to write mostly "targeted" code anyways (because a #mos6502 just won't reasonably run 98% of today's existing C code), what's the edge of a #GCC targeting this platform over e.g. #cc65?
If there's a real advantage, I might be tempted to bring this to #FreeBSD...
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@RogerBidon serious question, assuming you have to write mostly "targeted" code anyways (because a #mos6502 just won't reasonably run 98% of today's existing C code), what's the edge of a #GCC targeting this platform over e.g. #cc65?
If there's a real advantage, I might be tempted to bring this to #FreeBSD...
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Another learning breakthrough :ablobcatrave: I’ve managed to write a small ca65 assembly program which prints text on the screen. I burnt it onto an EEPROM and started it from the #apple2 slot 5 with ‘pr#5’. It took me some time to wrap my head around how to make the memory map of the ROM but it worked and I’m so happy #retrocomputing #cc65
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Just fixed my #cc65 boilerplate for #apple2 Now after compiling, the makefile inserts the new #ProDos image into Virtual][ emulator (MacOS) and “brun”s the project file. This speeds up the dev process quite a lot. #retrocomputing In case anyone needs it: https://github.com/varna9000/cc65-template-project
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@governa With the #CC65 compiler (#C only) already along for a long time, did anyone compare the results?
https://cc65.github.io/doc/cc65.html -
@governa With the #CC65 compiler (#C only) already along for a long time, did anyone compare the results?
https://cc65.github.io/doc/cc65.html -
Can’t believe I managed to rewrite this in C #cc65 😁😁😁 Never touched ansi C before, only some Arduino and mainly Python. #apple2 #retrocomputing #LoRa #weatherstation
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Holy fucking shit, folks! I have successfully tracked, found, understood and fixed a data corruption bug in #cc65!
This is absolutely one, maybe two new stamps on my #nerd card!
I'm so proud of myself right now 😊
I'll push a PR to cc65 later, and probably an explanation of the process on my blog for posterity, but first, celebration time 🙂
#RetroComputing -
Holy fucking shit, folks! I have successfully tracked, found, understood and fixed a data corruption bug in #cc65!
This is absolutely one, maybe two new stamps on my #nerd card!
I'm so proud of myself right now 😊
I'll push a PR to cc65 later, and probably an explanation of the process on my blog for posterity, but first, celebration time 🙂 -
@IPXFong Not sure if that's an option for you, but I very much prefer cross-development these days (actually, I didn't do anything else for many years).
There are several fine opensource cross-assemblers targeting the #C64 (or, more general, the #MOS6502 family). I personally prefer #ca65 which comes with the #cc65 cross-compiler package because it can assemble to object-code and the package contains a linker, IMHO very helpful for larger and more complex projects.
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@IPXFong Not sure if that's an option for you, but I very much prefer cross-development these days (actually, I didn't do anything else for many years).
There are several fine opensource cross-assemblers targeting the #C64 (or, more general, the #MOS6502 family). I personally prefer #ca65 which comes with the #cc65 cross-compiler package because it can assemble to object-code and the package contains a linker, IMHO very helpful for larger and more complex projects.
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Let me proudly present you this HGR (High Graphics Resolution - this is state of the art 280x192 pixels of awesomeness) rendering of a rose, courtesy of #cc65 sample images.
It has been selected from the TUI of #mastapple2c and should appear in all its glory in your #retrocomputing timelines! -
Let me proudly present you this HGR (High Graphics Resolution - this is state of the art 280x192 pixels of awesomeness) rendering of a rose, courtesy of #cc65 sample images.
It has been selected from the TUI of #mastapple2c and should appear in all its glory in your #retrocomputing timelines! -
I think I got obsessed with #cc65 compiler. I abandoned all work until I made a C program for my #apple2 clone which reads a contemporary, but converted image from the file system and shows it on the screen. I'm not even a C programmer. #prodos #pravetz8 #retrocomputing
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Spent hours yesterday to get a RL interrupt routine working in C for the #commodore #C128.
The code is .asm, but inside a C function, and the wedge function is also C.I am now at a point where I think it's not me, is #cc65. The routine did run nicely in pure (acme) assembly.
Next step: Raw .asm include, let's see if that works.Man, assembly programming is hard work.
#retroprogramming
