prog8
prog8 | woorm | |
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4 | 6 | |
135 | 3 | |
- | - | |
9.8 | 0.0 | |
16 days ago | over 1 year ago | |
Assembly | C | |
GNU General Public License v3.0 or later | - |
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prog8
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Are my projects too ambitious for this machine?
Prog8 language which uses 64tass under the hood
- Game Development Options on the Commodore 64
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Open Source library to compile some programming language to native code?
I've been writing Prog8 (in Kotlin) and it generates code for the 6502 cpu instead. I also find that generating reasonable efficient assembly is super hard. This is the first true compiler I've written that actually produces machine code. For now, it generates the assembly straight from the Ast (no intermediate representation yet), and the bulk of optimizations are done straight on the Ast.
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I made a turbo tape with some of my favorite games.
Prog8 is also nice, it is a close-to-assembly language for 6502-based systems: https://github.com/irmen/prog8
woorm
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FC8 – Faster 68K Decompression (2016)
I wrote a naive lz77 packer/unpacker in C for a c64 game. https://github.com/geon/woorm/blob/master/tools/lz77.c
Not fast, but the compression ratio was decent, and made it easy to fit a bunch of levels into the game.
- I got lz77 compression working for level data in my c64 worm game!
- Help! I get WEIRD bugs and crashes.
- I made a turbo tape with some of my favorite games.
- WIP snake game for C64, written in C.
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I got graphics working in my snake-game. Written in C with cc65.
I had to customize the .cfg for cl65 to place the custom charset in the proper location. Might be of interest: https://github.com/geon/woorm/blob/master/c64-c-gamedev.cfg
What are some alternatives?
millfork - Millfork: a middle-level programming language targeting 6502- and Z80-based microcomputers and home consoles
cc64 - cc64 is a small-C compiler written in Forth, hosted on the Commodore C64, Plus4 and C16 with 64k, and on the Commander X16. It is targeting the 6502 CPU.
64tass - 64tass - cross assembler for 6502 etc. microprocessors - by soci/singular - [git clone from the original sourceforge repo]
CROSS-LIB - CROSS LIB - A universal 8-bit library and some games built with it
Mad-Pascal - Mad Pascal Compiler for 6502 (Atari XE/XL, C64, C4Plus, Neo6502)
x16-hello-cc65 - "Hello World" examples using assembly and C with cc65 and the Commander X16
XC-BASIC - A compiling BASIC dialect for the Commodore-64
x16-docs - Commander X16 Documentation (CC BY-SA)
kotlin-native - Kotlin/Native infrastructure
j2z80 - Maven plugin to translate JVM bytecodes into Z80 commands