1 dnl Alpha EV5 __gmpn_lshift -- Shift a number left.
3 dnl Copyright (C) 1994, 1995, 2000 Free Software Foundation, Inc.
5 dnl This file is part of the GNU MP Library.
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8 dnl it under the terms of the GNU Lesser General Public License as published by
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15 dnl License for more details.
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22 include(`../config.m4')
30 dnl This code runs at 3.25 cycles/limb on the EV5.
34 s8addq r18,r17,r17 C make r17 point at end of s1
35 ldq r4,-8(r17) C load first limb
37 s8addq r18,r16,r16 C make r16 point at end of RES
39 and r18,4-1,r28 C number of limbs in first loop
40 srl r4,r20,r0 C compute function result
46 $Loop0: ldq r3,-16(r17)
93 unop C ldq r31,-96(r17)
106 unop C ldq r31,-96(r17)
117 C cool down phase 2/1
118 $Lend2: stq r7,-8(r16)
134 C cool down phase 2/2
141 C cool down phase 2/3
145 C cool down phase 1/1
146 $Lend1: srl r1,r20,r7
156 C cool down phase 1/2
166 $Lend: stq r24,-8(r16)