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-! SPDX-License-Identifier: GPL-2.0
-! Copyright (C) 2012 by Imagination Technologies Ltd.
-!
-! 64-bit arithmetic shift left routine.
-!
-
- .text
- .global ___ashldi3
- .type ___ashldi3,function
-
-___ashldi3:
- MOV D0Re0,D0Ar2
- MOV D1Re0,D1Ar1
- CMP D1Ar3,#0 ! COUNT == 0
- MOVEQ PC,D1RtP ! Yes, return
-
- SUBS D0Ar4,D1Ar3,#32 ! N = COUNT - 32
- BGE $L10
-
-!! Shift < 32
- NEG D0Ar4,D0Ar4 ! N = - N
- LSL D1Re0,D1Re0,D1Ar3 ! HI = HI << COUNT
- LSR D0Ar6,D0Re0,D0Ar4 ! TMP= LO >> -(COUNT - 32)
- OR D1Re0,D1Re0,D0Ar6 ! HI = HI | TMP
- SWAP D0Ar4,D1Ar3
- LSL D0Re0,D0Re0,D0Ar4 ! LO = LO << COUNT
- MOV PC,D1RtP
-
-$L10:
-!! Shift >= 32
- LSL D1Re0,D0Re0,D0Ar4 ! HI = LO << N
- MOV D0Re0,#0 ! LO = 0
- MOV PC,D1RtP
- .size ___ashldi3,.-___ashldi3
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