gbos.git/c/irc.c, branch master

refactor: c/ -> usr/, compiled program blobs out of the source tree

2026-07-17T22:38:38Z

Userland sources live in usr/ (fits the Unix theme better than 'c'). SDCC output .bin blobs land in build/usr/ with the other build artifacts instead of littering the source dir; programs.asm INCBINs them from there. Byte-identical ROM.

irc: keep the keyboard live during RX floods (poll input every pass)

2026-07-17T21:20:55Z

'/join #sl0p right after connect' looked broken: the main loop only polled input when net_recv_nb returned nothing, and 'continue'd on every received segment. During a big MOTD (irc.sl0p.foo's is ~60 lines of color art) that starved input for the whole ~20s flood - the OSK wouldn't even open, and keystrokes were dropped. gbtype input fared a bit better (buffered in the 64-byte console ring) but still wasn't serviced until the flood ended. Poll pollin()/pollcon() once every loop iteration regardless of RX, and only idle-sleep when a pass both received nothing and read no key. The protocol/join logic was already correct (verified: JOIN #sl0p is sent, accepted, and the client switches to [#sl0p] with topic + names) - this just makes typing responsive while messages are streaming. Verified against the live server: injecting /join #sl0p *during* the MOTD flood now joins immediately instead of waiting it out. (Note: '#' is on the OSK - third row, second from the end: 10,8,":;,=+*_!?()[]<>@#~" - just not obvious.)

irc: strip mIRC formatting, drop 004/005 noise, fix a RAM-bank-swap landmine

2026-07-17T21:03:43Z

Against the real irc.sl0p.foo (via a TLS-stripping socat proxy) the client's screen filled with garbage after connect. Two causes: 1. Color/format codes. The MOTD is a mIRC-color ASCII-art logo. We dropped the \x03 control byte (term ignores <32) but left its numeric *arguments*, so the logo rendered as digit soup ('09> stream the work', '030903 030903 ...'). strip_fmt() now removes \x03 color (+its fg[,bg] digits), \x04 hex color, and the \x02/\x0f/\x11/\x16/\x1d/ \x1e/\x1f toggles, applied to the trailing text of every line (leaving \x01 for CTCP). Standalone digits like '3 apples' are untouched. 2. The real bug: handle() defaulted pfx/txt to a read-only "" literal, and both bang(pfx) and strip_fmt(txt) write a NUL terminator into it. That literal lives in ROM (000-FFF); on MBC5 a write there is a RAM-bank-select, silently swapping the cart-RAM bank - where every static lives - out from under the program. One prefix-less or empty-trailing server line (real ircds send them: NOTICE AUTH, ERROR, registration PING) and all state turns to garbage. Fixed with a writable 1-byte 'empty' default (zeroed in main; gbos doesn't clear BSS). Also suppress 004 (MYINFO) and 005 (ISUPPORT) - pure noise on 40 cols, and InspIRCd splits ISUPPORT across several lines. Verified end to end against the live server: full InspIRCd MOTD (logo, LUSERS, links) renders clean and stable; host unit tests cover color/ bold/CTCP-action stripping and prefix-less NOTICE/ERROR/PING.

irc: a bitchx/irssi-style IRC client

2026-07-17T18:22:48Z

irc HOST [NICK] - connects over the kernel TCP stack (DNS-resolves the host), registers, and runs a live client on the 40x18 LCD. UI, within the terminal's means (no cursor addressing - just \r + \b): messages scroll above a fixed irssi-style input line '[#chan] text_' redrawn in place; long input scrolls horizontally. The elders' formats: msg, off-channel, *nick* private, -nick- notice, * nick action, >target< outbound, -!- server/status. Keys come from both the OSK (SELECT) and the console ring (pollcon), so a hub can drive it. Commands: /join /part /msg /me /nick /quit /raw, plus bare text to the current channel. Handles PING (PONG + a wink), CTCP ACTION/VERSION, JOIN/PART/QUIT/KICK/NICK, 332/353 topic+names, and 433 nick-in-use (auto-appends _). Registers on bank 32 as program id 30. Note: gbos doesn't zero C statics, so main() inits its state explicitly; the local TCP port is randomized (DIV) to dodge a stale server-side half-open from an unclean prior exit. Tested end to end against a small ircd through gbhub: full MOTD burst, join, channel + private messages, actions, and bot replies all render correctly.