Phase 5: CI, terminal I/O, Sixel graphics, classic programs

evv/gw-basic-2026

Add GitHub Actions CI with automated build and test. Implement real
terminal I/O with raw mode (enable_raw/disable_raw, proper INKEY$
polling via VMIN=0/VTIME=0, INPUT$ function). Add Sixel graphics
engine with virtual framebuffer (SCREEN 1: 320x200, SCREEN 2:
640x200), Bresenham line drawing, midpoint circle, flood fill PAINT,
DRAW mini-language parser, and Sixel encoder with RLE. Replace all
graphics stubs with real implementations (PSET, LINE, CIRCLE, DRAW,
PAINT, COLOR, SCREEN, POINT). Fix AND/OR/XOR operator precedence
to be lower than relational operators. Add 13 classic test programs
(39 total). Bump version to 0.5.0.

This commit is contained in:

Eremey Valetov

2026-02-10 16:46:34 -05:00

parent df5c3083b1

commit 1f4c460f4f

24 changed files with 1094 additions and 36 deletions

									
										include/gwbasic.h
									
		+1
		-1
	
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				@@ -10,7 +10,7 @@

				#include "gw_math.h"

				#include "strings.h"

				#define GW_VERSION "0.4.0"

				#define GW_VERSION "0.5.0"

				#define GW_BANNER "GW-BASIC " GW_VERSION

				/* Tokenizer */