diff options
| author | user <user@clank> | 2026-07-16 00:04:09 +0200 |
|---|---|---|
| committer | user <user@clank> | 2026-07-16 00:04:09 +0200 |
| commit | 0a77a11e17f697bf797655c4ae87b927432b1f88 (patch) | |
| tree | 97cafaa103aec412f692daff9e068fc63f0496bf /src/syscall.asm | |
| parent | kernel: implement fork() (diff) | |
| download | gbos-0a77a11e17f697bf797655c4ae87b927432b1f88.tar.gz gbos-0a77a11e17f697bf797655c4ae87b927432b1f88.tar.xz gbos-0a77a11e17f697bf797655c4ae87b927432b1f88.zip | |
kernel: implement exec()
- 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
Diffstat (limited to 'src/syscall.asm')
| -rw-r--r-- | src/syscall.asm | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/syscall.asm b/src/syscall.asm index ca2857c..fd1b213 100644 --- a/src/syscall.asm +++ b/src/syscall.asm @@ -40,7 +40,7 @@ SyscallTable: dw sys_write ; 3 WRITE dw sys_nosys ; 4 OPEN (TODO) dw sys_nosys ; 5 CLOSE (TODO) - dw sys_nosys ; 6 EXEC (TODO) + dw sys_exec ; 6 EXEC dw sys_nosys ; 7 WAIT (TODO) dw sys_getpid ; 8 GETPID dw sys_nosys ; 9 KILL (TODO) |