Files
unix-v6/source/s5/open.s
T
2018-01-27 22:35:41 +09:00

23 lines
246 B
ArmAsm

/ C library -- open
/ file = open(string, mode)
/
/ file == -1 means error
.globl _open, cerror
_open:
mov r5,-(sp)
mov sp,r5
mov 4(r5),0f
mov 6(r5),0f+2
sys 0; 9f
bec 1f
jmp cerror
1:
mov (sp)+,r5
rts pc
.data
9:
sys open; 0:..; ..