sl0pboy - a Game Boy Color emulator (companion to the gbos OS) https://git.sl0p.foo/sl0pboy.git/atom/.gitignore?h=master 2026-07-18T20:45:06Z 2026-07-18T20:45:06Z gbc dev gbc@localhost 2026-07-18T20:45:06Z urn:sha1:79c8551c0599ea087502ae59bbe72d1ae8bbabf1 The stock CGB boot ROM draws its GAME BOY wordmark from a 192-byte blob at $0607 (routine $03F0 copies it to VRAM tiles $08-$37: 48 tiles, 4 bytes each, every byte a row doubled vertically). This re-encodes that blob with a bold-italic SL0PBOY bitmap of the same size and patches it in place over a local bios/gbc_bios.bin -> bios/sl0pboy_bios.bin. No code moves; the cart's own Nintendo logo ($104) is untouched so the integrity check still passes and the boot hands off normally. bios/ stays gitignored (copyrighted boot ROM); run this to produce the fork locally. Verified end to end: logo drop + color + chime -> gbos. 2026-07-16T22:27:46Z gbc dev gbc@localhost 2026-07-16T22:27:46Z urn:sha1:6c906a750675910323710b293f939a5f26dadd58 - Rewrite argument handling: the ROM is now the final argument and options precede it (parsed in argv[1..argc-2] so optional-value flags never swallow the ROM). Add grouped --help/-h, unknown-option errors, and clear 'missing value'/'no ROM' diagnostics. - Add --chrome, --palette/--green, and --bios flags; set the display/capture options before the --shot and recording paths so screenshots and recordings honor them. Make --shot dump the composited capture frame. - gbctl: pass the ROM last when spawning the emulator. - gitignore the (copyrighted) bios/ directory; document all new flags. 2026-07-04T20:05:31Z gbc dev gbc@localhost 2026-07-04T20:05:31Z urn:sha1:0d0f4f1d23851c0c34e518834f7d316e61dec1f3