1! Copyright (C) 2012 Imagination Technologies Ltd.
  2!
  3! Signed/unsigned 64-bit division routines.
  4!
  5
  6	.text
  7	.global _div_u64
  8	.type   _div_u64,function
  9
 10_div_u64:
 11$L1:
 12	ORS     A0.3,D1Ar3,D0Ar4
 13	BNE     $L3
 14$L2:
 15	MOV     D0Re0,D0Ar2
 16	MOV     D1Re0,D1Ar1
 17	MOV     PC,D1RtP
 18$L3:
 19	CMP     D1Ar3,D1Ar1
 20	CMPEQ   D0Ar4,D0Ar2
 21	MOV     D0Re0,#1
 22	MOV     D1Re0,#0
 23	BHS     $L6
 24$L4:
 25	ADDS    D0Ar6,D0Ar4,D0Ar4
 26	ADD     D1Ar5,D1Ar3,D1Ar3
 27	ADDCS   D1Ar5,D1Ar5,#1
 28	CMP     D1Ar5,D1Ar3
 29	CMPEQ   D0Ar6,D0Ar4
 30	BLO     $L6
 31$L5:
 32	MOV     D0Ar4,D0Ar6
 33	MOV     D1Ar3,D1Ar5
 34	ADDS    D0Re0,D0Re0,D0Re0
 35	ADD     D1Re0,D1Re0,D1Re0
 36	ADDCS   D1Re0,D1Re0,#1
 37	CMP     D1Ar3,D1Ar1
 38	CMPEQ   D0Ar4,D0Ar2
 39	BLO     $L4
 40$L6:
 41	ORS     A0.3,D1Re0,D0Re0
 42	MOV     D0Ar6,#0
 43	MOV     D1Ar5,D0Ar6
 44	BEQ     $L10
 45$L7:
 46	CMP     D1Ar1,D1Ar3
 47	CMPEQ   D0Ar2,D0Ar4
 48	BLO     $L9
 49$L8:
 50	ADDS    D0Ar6,D0Ar6,D0Re0
 51	ADD     D1Ar5,D1Ar5,D1Re0
 52	ADDCS   D1Ar5,D1Ar5,#1
 53
 54	SUBS    D0Ar2,D0Ar2,D0Ar4
 55	SUB     D1Ar1,D1Ar1,D1Ar3
 56	SUBCS   D1Ar1,D1Ar1,#1
 57$L9:
 58	LSL     A0.3,D1Re0,#31
 59	LSR     D0Re0,D0Re0,#1
 60	LSR     D1Re0,D1Re0,#1
 61	OR      D0Re0,D0Re0,A0.3
 62	LSL     A0.3,D1Ar3,#31
 63	LSR     D0Ar4,D0Ar4,#1
 64	LSR     D1Ar3,D1Ar3,#1
 65	OR      D0Ar4,D0Ar4,A0.3
 66	ORS     A0.3,D1Re0,D0Re0
 67	BNE     $L7
 68$L10:
 69	MOV     D0Re0,D0Ar6
 70	MOV     D1Re0,D1Ar5
 71	MOV     PC,D1RtP
 72	.size _div_u64,.-_div_u64
 73
 74	.text
 75	.global _div_s64
 76	.type   _div_s64,function
 77_div_s64:
 78	MSETL   [A0StP],D0FrT,D0.5
 79	XOR     D0.5,D0Ar2,D0Ar4
 80	XOR     D1.5,D1Ar1,D1Ar3
 81	TSTT    D1Ar1,#HI(0x80000000)
 82	BZ      $L25
 83
 84	NEGS    D0Ar2,D0Ar2
 85	NEG     D1Ar1,D1Ar1
 86	SUBCS   D1Ar1,D1Ar1,#1
 87$L25:
 88	TSTT    D1Ar3,#HI(0x80000000)
 89	BZ      $L27
 90
 91	NEGS    D0Ar4,D0Ar4
 92	NEG     D1Ar3,D1Ar3
 93	SUBCS   D1Ar3,D1Ar3,#1
 94$L27:
 95	CALLR   D1RtP,_div_u64
 96	TSTT    D1.5,#HI(0x80000000)
 97	BZ      $L29
 98
 99	NEGS    D0Re0,D0Re0
100	NEG     D1Re0,D1Re0
101	SUBCS   D1Re0,D1Re0,#1
102$L29:
103
104	GETL    D0FrT,D1RtP,[A0StP+#(-16)]
105	GETL    D0.5,D1.5,[A0StP+#(-8)]
106	SUB     A0StP,A0StP,#16
107	MOV     PC,D1RtP
108	.size _div_s64,.-_div_s64