ack/plat/pdpv7/libsys/_wait.s
David Given 4b5a7fee14 Made the cgg and the cg code generator work; use this to beat the PDP/11
backend into shape. It now generates binaries --- no idea whether they work or
not.
2018-02-23 22:31:46 +01:00

17 lines
157 B
ArmAsm

#include "sys.h"
.define __wait
.extern _errno
__wait:
sys wait
bcc 1f
mov r0,_errno
mov $-1,r0
rts pc
1:
tst 2(sp)
beq 1f
mov r1,*2(sp)
1:
rts pc