1! Copyright (C) 2012 by Imagination Technologies Ltd.
2!
3! 64-bit signed compare routine.
4!
5
6	.text
7	.global ___cmpdi2
8	.type   ___cmpdi2,function
9
10!         low    high
11! s64 a  (D0Ar2, D1Ar1)
12! s64 b  (D0Ar4, D1Ar3)
13___cmpdi2:
14	! start at 1 (equal) and conditionally increment or decrement
15	MOV	D0Re0,#1
16
17	! high words differ?
18	CMP	D1Ar1,D1Ar3
19	BNE	$Lhigh_differ
20
21	! unsigned compare low words
22	CMP	D0Ar2,D0Ar4
23	SUBLO	D0Re0,D0Re0,#1
24	ADDHI	D0Re0,D0Re0,#1
25	MOV	PC,D1RtP
26
27$Lhigh_differ:
28	! signed compare high words
29	SUBLT	D0Re0,D0Re0,#1
30	ADDGT	D0Re0,D0Re0,#1
31	MOV	PC,D1RtP
32	.size ___cmpdi2,.-___cmpdi2
33