gbos - a tiny Unix-flavored OS for the Game Boy Color (kernel, shell, coreutils in C, RAM filesystem) https://git.sl0p.foo/gbos.git/atom/usr/clear.c?h=master 2026-09-24T21:08:46Z 2026-09-24T21:08:46Z user user@clank 2026-09-24T21:08:46Z urn:sha1:0ed3787ce6182a9198d67bb2b6ce556d21c7b1ad The terminal understood SGR and nothing else, so there was no way to erase the screen - printing 18 newlines only scrolls the history up out of sight. term_erase_all blanks the buffer, resets the colours, homes the cursor and repaints; the CSI parser routes 'J' to it, and clear(1) is four putc calls.