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-rw-r--r--arch/metag/lib/div64.S109
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diff --git a/arch/metag/lib/div64.S b/arch/metag/lib/div64.S
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-! SPDX-License-Identifier: GPL-2.0
-! Copyright (C) 2012 Imagination Technologies Ltd.
-!
-! Signed/unsigned 64-bit division routines.
-!
-
- .text
- .global _div_u64
- .type _div_u64,function
-
-_div_u64:
-$L1:
- ORS A0.3,D1Ar3,D0Ar4
- BNE $L3
-$L2:
- MOV D0Re0,D0Ar2
- MOV D1Re0,D1Ar1
- MOV PC,D1RtP
-$L3:
- CMP D1Ar3,D1Ar1
- CMPEQ D0Ar4,D0Ar2
- MOV D0Re0,#1
- MOV D1Re0,#0
- BHS $L6
-$L4:
- ADDS D0Ar6,D0Ar4,D0Ar4
- ADD D1Ar5,D1Ar3,D1Ar3
- ADDCS D1Ar5,D1Ar5,#1
- CMP D1Ar5,D1Ar3
- CMPEQ D0Ar6,D0Ar4
- BLO $L6
-$L5:
- MOV D0Ar4,D0Ar6
- MOV D1Ar3,D1Ar5
- ADDS D0Re0,D0Re0,D0Re0
- ADD D1Re0,D1Re0,D1Re0
- ADDCS D1Re0,D1Re0,#1
- CMP D1Ar3,D1Ar1
- CMPEQ D0Ar4,D0Ar2
- BLO $L4
-$L6:
- ORS A0.3,D1Re0,D0Re0
- MOV D0Ar6,#0
- MOV D1Ar5,D0Ar6
- BEQ $L10
-$L7:
- CMP D1Ar1,D1Ar3
- CMPEQ D0Ar2,D0Ar4
- BLO $L9
-$L8:
- ADDS D0Ar6,D0Ar6,D0Re0
- ADD D1Ar5,D1Ar5,D1Re0
- ADDCS D1Ar5,D1Ar5,#1
-
- SUBS D0Ar2,D0Ar2,D0Ar4
- SUB D1Ar1,D1Ar1,D1Ar3
- SUBCS D1Ar1,D1Ar1,#1
-$L9:
- LSL A0.3,D1Re0,#31
- LSR D0Re0,D0Re0,#1
- LSR D1Re0,D1Re0,#1
- OR D0Re0,D0Re0,A0.3
- LSL A0.3,D1Ar3,#31
- LSR D0Ar4,D0Ar4,#1
- LSR D1Ar3,D1Ar3,#1
- OR D0Ar4,D0Ar4,A0.3
- ORS A0.3,D1Re0,D0Re0
- BNE $L7
-$L10:
- MOV D0Re0,D0Ar6
- MOV D1Re0,D1Ar5
- MOV PC,D1RtP
- .size _div_u64,.-_div_u64
-
- .text
- .global _div_s64
- .type _div_s64,function
-_div_s64:
- MSETL [A0StP],D0FrT,D0.5
- XOR D0.5,D0Ar2,D0Ar4
- XOR D1.5,D1Ar1,D1Ar3
- TSTT D1Ar1,#HI(0x80000000)
- BZ $L25
-
- NEGS D0Ar2,D0Ar2
- NEG D1Ar1,D1Ar1
- SUBCS D1Ar1,D1Ar1,#1
-$L25:
- TSTT D1Ar3,#HI(0x80000000)
- BZ $L27
-
- NEGS D0Ar4,D0Ar4
- NEG D1Ar3,D1Ar3
- SUBCS D1Ar3,D1Ar3,#1
-$L27:
- CALLR D1RtP,_div_u64
- TSTT D1.5,#HI(0x80000000)
- BZ $L29
-
- NEGS D0Re0,D0Re0
- NEG D1Re0,D1Re0
- SUBCS D1Re0,D1Re0,#1
-$L29:
-
- GETL D0FrT,D1RtP,[A0StP+#(-16)]
- GETL D0.5,D1.5,[A0StP+#(-8)]
- SUB A0StP,A0StP,#16
- MOV PC,D1RtP
- .size _div_s64,.-_div_s64