Eremey Valetov
ad21350003
Authentic GW-BASIC screen editor with 25x80 buffer, free cursor movement, enter-on-any-line, F1-F10 function keys, Insert/Overwrite toggle, KEY ON/OFF/LIST statement, and Ctrl+Break handling. HAL pointer swap routes all PRINT/LIST/error output through the TUI automatically. Piped mode unchanged (50/50 tests pass). Adds automated compatibility testing infrastructure: DOSBox-X headless config, PRINT-to-file transform script, and run_compat.sh with --generate and --compare modes for verifying output against real GWBASIC.EXE. Project renamed from gwbasic-c to GW-BASIC 2026.
1.1 KiB
1.1 KiB
GW-BASIC 2026
A portable C reimplementation of Microsoft GW-BASIC, using the original 8088 assembly source (released by Microsoft in 2020) as the authoritative reference.
This is not a transpilation — it reimplements the algorithms in clean C11
with modern data structures while targeting bug-compatible behavior.
Unlike the original assembly (43,771 lines across 43 .ASM files), this
version is structured as modular C suitable for new feature development.
Highlights
- Authentic full-screen editor — 25×80 screen buffer, free cursor movement, Enter-on-any-line, F1-F10 function keys, Insert/Overwrite toggle
- Sixel graphics —
SCREEN 1/SCREEN 2rendering in compatible terminals - Sound —
SOUND,BEEP,PLAY(MML) via PulseAudio - Full file I/O — sequential, random-access, SAVE/LOAD/MERGE/CHAIN
- 50 test programs with DOSBox-X compatibility testing against real GWBASIC.EXE
- MIT License
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getting-started
language-reference
architecture
development
roadmap