123 lines
2.6 KiB
ArmAsm
123 lines
2.6 KiB
ArmAsm
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/* Copyright (C) 2006-2021 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 __extendsfdf2
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.balign 4
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FUNC(__extendsfdf2)
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__extendsfdf2:
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push_s blink
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bl.d __extendsfdf2_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 __extendsfdf2_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(__extendsfdf2)
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#define __extendsfdf2 __extendsfdf2_asm
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#endif /* DEBUG */
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#if 0 /* ARC600 */
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__extendsfdf2:
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lsr r2,r0,23
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tst r2,0xff
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bic.ne.f r2,0xff
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beq_s .Linf_nan_denorm_0
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..
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.Linf_nan_denorm:
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bbit1 r0,30,.Linf_nan
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#endif
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.global __extendsfdf2
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.balign 4
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FUNC(__extendsfdf2)
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__extendsfdf2:
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add.f r1,r0,r0
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norm r3,r1
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#ifdef __LITTLE_ENDIAN__
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lsr_s DBL0H,r1,4
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brhs r3,7,.Linf_nan_denorm_0
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asl_s DBL0L,r0,29
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add_s DBL0H,DBL0H, \
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0x38000000
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#else
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lsr r2,r1,4
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brhs r3,7,.Linf_nan_denorm_0
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asl_s DBL0L,r1,28
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add DBL0H,r2, \
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0x38000000
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#endif
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j_s.d [blink]
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bxor.cs DBL0H,DBL0H,31
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.balign 4
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.Linf_nan_denorm_0:
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#ifdef __LITTLE_ENDIAN__
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mov_s DBL0H,r0
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jeq.d [blink]
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mov.eq DBL0L,0
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#else
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jeq_s [blink]
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#endif
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bmi .Linf_nan
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asl_s r0,r0,r3
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rsub r3,r3,0x380+6
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#ifdef __LITTLE_ENDIAN__
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asl_s r3,r3,20
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lsr DBL0H,r0,9
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asl_s DBL0L,r0,23
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add_s DBL0H,DBL0H,r3
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j_s.d [blink]
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bxor.cs DBL0H,DBL0H,31
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#else
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asl DBL0L,r0,23
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lsr_s DBL0H,r0,9
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asl_s r3,r3,20
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bxor.cs DBL0H,DBL0H,31
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j_s.d [blink]
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add_l DBL0H,DBL0H,r3
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#endif
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.Linf_nan:
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#ifdef __LITTLE_ENDIAN__
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lsr DBL0H,r0,3
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or_s DBL0H,DBL0H,r0
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j_s.d [blink]
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mov_l DBL0L,0
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#else
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lsr r3,r0,3
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mov_s DBL0L,0
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j_s.d [blink]
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or_l DBL0H,r0,r3
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#endif
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ENDFUNC(__extendsfdf2)
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