78 lines
1.8 KiB
ArmAsm
78 lines
1.8 KiB
ArmAsm
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/* Copyright (C) 2008-2021 Free Software Foundation, Inc.
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Contributor: Joern Rennecke <joern.rennecke@embecosm.com>
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on behalf of Synopsys Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#include "arc-ieee-754.h"
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#if 0 /* DEBUG */
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.global __floatsidf
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.balign 4
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FUNC(__floatsidf)
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__floatsidf:
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push_s blink
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bl.d __floatsidf_c
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push_s r0
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ld_s r2,[sp]
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st_s r1,[sp]
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push_s r0
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bl.d __floatsidf_asm
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mov_s r0,r2
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pop_s r2
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pop_s r3
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pop_s blink
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cmp r0,r2
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cmp.eq r1,r3
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jeq_s [blink]
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bl abort
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ENDFUNC(__floatsidf)
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#define __floatsidf __floatsidf_asm
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#endif /* DEBUG */
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.global __floatsidf
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.balign 4
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FUNC(__floatsidf)
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__floatsidf:
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abs.f r1,r0
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jeq_s [blink]
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lsr r2,r1
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mov r12,-0x41d ; -(0x3ff+31-1)
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norm r2,r2
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bclr.cs r12,r12,11
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rsub.f r3,r2,11
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add_s r12,r2,r12
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add_s r2,r2,21
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#ifdef __LITTLE_ENDIAN__
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asl DBL0L,r1,r2
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lsr_s DBL0H,r1,r3
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#else
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lsr DBL0H,r1,r3
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asl_s DBL0L,r1,r2
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#endif
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asl_s r12,r12,20
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mov.lo DBL0H,DBL0L
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sub_s DBL0H,DBL0H,r12
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j_s.d [blink]
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mov.ls DBL0L,0
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ENDFUNC(__floatsidf)
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