30 lines
373 B
Plaintext

import io
import mem
import sys
main() {
length := 256
command := mem.alloc(length)
argv := mem.alloc(1)
envp := mem.alloc(1)
info := mem.alloc(24)
loop {
io.out("$ ")
n := io.in(command)
if n <= 0 {
return
}
command[n-1] = '\0'
pid := sys.fork()
if pid == 0 {
sys.execve(command, argv, envp)
return
}
sys.waitid(0, pid, info, 4)
}
}