| Commit message (Collapse) | Author | Age | Files | Lines |
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A client that connects and closes before reading (e.g. the HUD's liveness
probe) made the greeting write() raise SIGPIPE, terminating the whole emulator
- this was behind much of the 'it keeps dying' this session. Also: gbhud now
re-resolves the live instance from the registry on every reconnect (skipping
stale sockets by test-connecting), so the HUD follows respawns, and its box
rendering is ANSI-width-correct.
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The APU was a black hole: reads returned 0xFF, writes were dropped. That hangs
any game that fades music out by decrementing the NR50/rAUDVOL volume register
until it reads 0 (Pokemon's StopMusic spin-wait) - the write never stuck, the
read never hit 0, infinite loop. Store the 48 sound registers and return them
with the standard hardware read-back OR-masks (NR50 mask 0x00 = exact readback).
No synthesis, just correct register behavior.
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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.
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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.
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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.
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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).
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Passes blargg cpu_instrs (all 11), instr_timing, mem_timing.
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