1! Copyright (C) 2012 by Imagination Technologies Ltd. 2! 3! 64-bit arithmetic shift left routine. 4! 5 6 .text 7 .global ___ashldi3 8 .type ___ashldi3,function 9 10___ashldi3: 11 MOV D0Re0,D0Ar2 12 MOV D1Re0,D1Ar1 13 CMP D1Ar3,#0 ! COUNT == 0 14 MOVEQ PC,D1RtP ! Yes, return 15 16 SUBS D0Ar4,D1Ar3,#32 ! N = COUNT - 32 17 BGE $L10 18 19!! Shift < 32 20 NEG D0Ar4,D0Ar4 ! N = - N 21 LSL D1Re0,D1Re0,D1Ar3 ! HI = HI << COUNT 22 LSR D0Ar6,D0Re0,D0Ar4 ! TMP= LO >> -(COUNT - 32) 23 OR D1Re0,D1Re0,D0Ar6 ! HI = HI | TMP 24 SWAP D0Ar4,D1Ar3 25 LSL D0Re0,D0Re0,D0Ar4 ! LO = LO << COUNT 26 MOV PC,D1RtP 27 28$L10: 29!! Shift >= 32 30 LSL D1Re0,D0Re0,D0Ar4 ! HI = LO << N 31 MOV D0Re0,#0 ! LO = 0 32 MOV PC,D1RtP 33 .size ___ashldi3,.-___ashldi3 34