gbos.git - gbos - a tiny Unix-flavored OS for the Game Boy Color (kernel, shell, coreutils in C, RAM filesystem)

	Commit message (Collapse)	Author	Files	Lines
4 days	refactor: c/ -> usr/, compiled program blobs out of the source tree	user	1	-0/+0
	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.
6 days	tools: wc, head, and an argc/argv demo (args) + libc.c helpers	user	1	-7/+0
	- c/libc.c: shared C helpers linked into every program - putu (print decimal), atou (parse decimal), argv_parse (tokenize getargs() into argc/argv). - wc: count lines/words/chars of stdin. head [n]: first n lines (drains rest to EOF). args: argc/argv demo. - pid now uses libc putu; build.sh links libc.c; Makefile CBLOBS + libc dep. - README: document the new tools + argv_parse. - verified: 'args one two three' -> argc=3/argv[..]; wc '2 3 16'; head 2.
6 days	libc + CLI tools: a small C userland	user	1	-0/+9
	- libc: add putc, puts, strlen, getargs (args string), EOF (=4) for readc. - args: shell splits the command line at the first space ("cmd\0args\0" at $A000, inherited by the child via fork); getargs() returns the arg string. - shell: exit on Ctrl-D/EOF; $ prompt over a clean read loop. - tools (c/): echo (argv), cat (stdin->stdout to EOF), uname, pid (decimal print), true, false. Each built to a ROM-bank blob and registered. - Makefile: CBLOBS list builds all C programs. - README: document libc + the tool set.