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

	Commit message (Collapse)	Author	Age	Files	Lines
*	kernel: implement exec()	user	11 days	1	-0/+52
	- sys_exec(B=program id): look up ProgramTable, point PROC_ROMB at the program's ROM text bank, map it into $4000-$7FFF, reset stack, jp to entry (no return) - programs.asm: two demo programs (ping/pong) ORG'd at the SAME $4000 in banks 2 and 3 - proves execution is driven purely by PROC_ROMB - demo: init forks; parent execs PROG_PING (bank2, '1'), child execs PROG_PONG (bank3, '2') -> '1212...', 2000/2000 balanced, zero garbage - README: document exec + text-in-ROM model