Cork for Visual Studio Code

Language support for Cork, a programming language for the Commodore 64.

Features

Syntax Highlighting

Full grammar for Cork source files including scenes, structs, enums, message-passing method calls, raster blocks, and inline sprite pixel art with colored #/./1/2/3 markers.

Build on Save

Compiles automatically when you save a .cork file. Errors appear in the Problems panel with file, line, and column. The status bar shows compilation status, error count, RAM usage, and peephole optimizer savings.

Build manually with the Cork: Build command.

VICE Integration

Cork: Run in VICE compiles the current file and launches it in the VICE x64sc emulator. Auto-detects VICE from common install locations or configure a custom path.

Sprite Preview and Editing

Hover over a sprite pattern to see a rendered preview
Code lens above sprite blocks shows dimensions and type (hi-res / multicolor)
Sprite editor panel for pixel-by-pixel editing that writes back to source

Smart Completions

Context-aware autocompletion for:

Color. — all 16 C64 colors
mode: — VIC-II graphics modes
go — scene names in the current file
hardware blocks — border, background, multicolor registers
sprite blocks — data, position, color, expand, priority

Outline — scenes, structs, enums, methods, sprites, raster blocks
Go to Definition — jump to scenes, methods, enums, imported files
Find References and Rename across the document

Hardware Documentation on Hover

Hover over VIC-II register addresses ($D000-$D02E) or SID registers for inline documentation.

Color Picker

Click the color swatch next to Color.red, Color.cyan, etc. to browse the C64 palette and insert a color.

Code Formatting

Formats Cork source files with proper indentation while preserving sprite pattern alignment.

PRG Viewer

Open compiled .prg files to see:

Load address, payload size, RAM usage
Memory layout visualization
Hex dump with ASCII
6510 disassembly

Snippets

Templates for common patterns: scene, entry, struct, enum, sprite, spritedata, spritemc, for, foreach, while, if, switch, method, poke, printAt, hardware.

Configuration

Setting	Default	Description
`cork.compilerPath`	(auto-detect)	Path to the Cork compiler
`cork.buildOnSave`	`true`	Compile on save
`cork.vicePath`	(auto-detect)	Path to VICE x64sc emulator

The extension auto-detects the compiler in this order: configured path, dotnet run against a detected Cork.Compiler project, then cork on PATH.

License

MIT

Cork

corklang