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* render: --shrink N - downscale the half-block live display (1-4)gbc dev3 days1-3/+42
| | | | | | | | | | | Decimates the LCD N x N before the half-block encode so the monitor pane takes 160/N cols x 72/N rows. Display-only: capture, recording and sixel still read the full-res framebuffer. Decimation is max-luma pick, not box-average: terminal fonts are 1px bright strokes on dark background, and averaging dims them into grey mush (the 'blurry font' regression). Keeping the brightest source pixel of each block preserves stroke brightness and hue.
* render: Game Boy chrome, LCD palette recolor, and frame capturegbc dev5 days1-39/+332
| | | | | | | | | | | | | - --chrome: draw a DMG-style 'sl0pboy' shell around the LCD in sixel mode, with a bitmap-font silk-screen (logo, labels), speaker grille, power LED, and buttons that light up while held. - LCD palette recolor (render_set_palette): remap the LCD to a 4-shade palette by luminance for the classic monochrome look ('dmg'/'green' pea green, 'pocket'/'gray'); applies to every render path. - Refactor the sixel encoder into generic build_palette_buf/encode_sixel_buf operating on any RGB888 buffer, shared by the bare LCD and the chrome canvas. - render_capture_size/frame: produce the exact displayed frame (recolor + chrome) as an RGB buffer, for screenshots and video recording.
* render: no status line in sixel mode (pure graphics output only)gbc dev7 days1-6/+2
| | | | | In --sixel mode the emulator drew a status line (title/skip/[f]ast/q:quit) under the image; drop it so sixel output is nothing but the game graphics.
* control: socket-based debug channel + gbctl CLI drivergbc dev7 days1-0/+135
| | | | | | | | | | | | | | Replace the input-only FIFO's limitations with a Unix-domain socket control channel (--sock) that is a superset of the button vocabulary plus emulator introspection: read/write bus memory, get/set CPU context, single-step, PC breakpoints, value-change watchpoints, run/pause. Being a socket it replies to each command and broadcasts async 'event stop ...' lines; a stored last-stop record (stopinfo) lets per-request clients recover a missed event. Add gbctl: a stdlib-python CLI that spawns a tmux pane running the emulator on a ROM, auto-resolves the socket, and drives it with terse verbs (cpu/read/write/ reg/step/break/watch/continue/pause/press/hold/screen/stop). The FIFO stays as legacy input-only.
* speed control: frame skipping to decouple terminal draw from emulationgbc dev2026-07-041-2/+27
| | | | | | | Emulation always runs at native rate (correct game speed); --frameskip N draws only 1 of every N+1 frames so a slow terminal no longer bottlenecks the loop. Adds --fps cap, --uncapped/--turbo, live [ ] and f keys, HUD readout, and an exit summary of emulated-vs-drawn fps. Replaces the confusing --render-fps.
* input: external control channel via FIFOgbc dev2026-07-041-22/+113
| | | | | | | Adds --fifo [path] opening a named pipe that accepts button commands from any process. Supports momentary taps (a, start, name:N), deterministic hold/release (+name / -name), and 'release'. Merges with keyboard input; held state carries true key-up semantics the terminal can't provide. GBC_INPUT_DEBUG traces state.
* renderer: inter-frame diffing to minimize terminal outputgbc dev2026-07-041-9/+51
| | | | | | | Only cells that changed since the previous frame are redrawn, using cursor positioning to skip unchanged runs. Static screens write nothing after the first frame (~108x reduction on acid2). SIGWINCH forces a full repaint. Verified pixel-exact against the framebuffer (11520/11520 cells, 0 mismatch).
* add status line HUD, README with architecture and test statusgbc dev2026-07-041-0/+3
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* terminal renderer (truecolor half-block), input, screenshot modegbc dev2026-07-041-0/+112