USG_PG3/usr/source/clib4/msg.s

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/ c library - message functions
/
/ msgenab()
/ msgdisab()
/
/ send(buffer,size,topid,type)		conditional send
/ sendw(buffer,size,topid,type)		unconditional send
/
/ recv(buffer,size,&structure,type)	conditional receive
/ recvw(buffer,size,&structure,type)	unconditional receive
/
.globl _msgenab,_msgdisab
.globl _send,_sendw
.globl _recv,_recvw
.globl cerror

INDIR = 0
MSG = 49.

DISAB =	0
ENAB =	1
SEND =	2
SENDW =	3
RECV =	4
RECVW =	5

.text
_msgdisab:
	mov	$DISAB,func
	br	1f

_msgenab:
	mov	$ENAB,func
1:
	mov	r5,-(sp)
	mov	sp,r5
	sys	INDIR; 9f
	bec	1f
	jmp	cerror
1:
	clr	r0
	mov	(sp)+,r5
	rts	pc

_send:
	mov	$SEND,func
	br	1f

_sendw:
	mov	$SENDW,func
	br	1f

_recv:
	mov	$RECV,func
	br	1f

_recvw:
	mov	$RECVW,func
1:
	mov	r5,-(sp)
	mov	sp,r5
	mov	4(r5),buf
	mov	6(r5),r0
	mov	8.(r5),arg3
	mov	10.(r5),type
	sys	INDIR; 9f
	bec	1f
	jmp	cerror
1:
	mov	(sp)+,r5
	rts	pc

.data
9:
	sys	MSG; func:..; buf:..; arg3:..; type:..