270 lines
5.7 KiB
ArmAsm
270 lines
5.7 KiB
ArmAsm
/* Library functions.
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Copyright (C) 2000-2017 Free Software Foundation, Inc.
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Contributed by Red Hat, 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
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY ; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License 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 <frv-asm.h>
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#ifdef L_cmpll
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/* icc0 = __cmpll (long long a, long long b) */
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.globl EXT(__cmpll)
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.type EXT(__cmpll),@function
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.text
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.p2align 4
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EXT(__cmpll):
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cmp gr8, gr10, icc0
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ckeq icc0, cc4
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P(ccmp) gr9, gr11, cc4, 1
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ret
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.Lend:
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.size EXT(__cmpll),.Lend-EXT(__cmpll)
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#endif /* L_cmpll */
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#ifdef L_cmpf
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/* icc0 = __cmpf (float a, float b) */
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/* Note, because this function returns the result in ICC0, it means it can't
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handle NaNs. */
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.globl EXT(__cmpf)
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.type EXT(__cmpf),@function
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.text
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.p2align 4
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EXT(__cmpf):
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#ifdef __FRV_HARD_FLOAT__ /* floating point instructions available */
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movgf gr8, fr0
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P(movgf) gr9, fr1
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setlos #1, gr8
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fcmps fr0, fr1, fcc0
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P(fcklt) fcc0, cc0
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fckeq fcc0, cc1
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csub gr0, gr8, gr8, cc0, 1
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cmov gr0, gr8, cc1, 1
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cmpi gr8, 0, icc0
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ret
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#else /* no floating point instructions available */
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movsg lr, gr4
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addi sp, #-16, sp
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sti gr4, @(sp, 8)
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st fp, @(sp, gr0)
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mov sp, fp
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call EXT(__cmpsf2)
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cmpi gr8, #0, icc0
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ldi @(sp, 8), gr4
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movgs gr4, lr
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ld @(sp,gr0), fp
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addi sp, #16, sp
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ret
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#endif
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.Lend:
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.size EXT(__cmpf),.Lend-EXT(__cmpf)
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#endif
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#ifdef L_cmpd
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/* icc0 = __cmpd (double a, double b) */
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/* Note, because this function returns the result in ICC0, it means it can't
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handle NaNs. */
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.globl EXT(__cmpd)
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.type EXT(__cmpd),@function
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.text
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.p2align 4
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EXT(__cmpd):
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movsg lr, gr4
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addi sp, #-16, sp
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sti gr4, @(sp, 8)
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st fp, @(sp, gr0)
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mov sp, fp
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call EXT(__cmpdf2)
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cmpi gr8, #0, icc0
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ldi @(sp, 8), gr4
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movgs gr4, lr
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ld @(sp,gr0), fp
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addi sp, #16, sp
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ret
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.Lend:
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.size EXT(__cmpd),.Lend-EXT(__cmpd)
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#endif
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#ifdef L_addll
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/* gr8,gr9 = __addll (long long a, long long b) */
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/* Note, gcc will never call this function, but it is present in case an
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ABI program calls it. */
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.globl EXT(__addll)
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.type EXT(__addll),@function
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.text
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.p2align
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EXT(__addll):
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addcc gr9, gr11, gr9, icc0
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addx gr8, gr10, gr8, icc0
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ret
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.Lend:
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.size EXT(__addll),.Lend-EXT(__addll)
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#endif
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#ifdef L_subll
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/* gr8,gr9 = __subll (long long a, long long b) */
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/* Note, gcc will never call this function, but it is present in case an
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ABI program calls it. */
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.globl EXT(__subll)
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.type EXT(__subll),@function
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.text
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.p2align 4
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EXT(__subll):
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subcc gr9, gr11, gr9, icc0
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subx gr8, gr10, gr8, icc0
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ret
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.Lend:
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.size EXT(__subll),.Lend-EXT(__subll)
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#endif
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#ifdef L_andll
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/* gr8,gr9 = __andll (long long a, long long b) */
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/* Note, gcc will never call this function, but it is present in case an
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ABI program calls it. */
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.globl EXT(__andll)
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.type EXT(__andll),@function
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.text
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.p2align 4
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EXT(__andll):
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P(and) gr9, gr11, gr9
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P2(and) gr8, gr10, gr8
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ret
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.Lend:
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.size EXT(__andll),.Lend-EXT(__andll)
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#endif
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#ifdef L_orll
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/* gr8,gr9 = __orll (long long a, long long b) */
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/* Note, gcc will never call this function, but it is present in case an
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ABI program calls it. */
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.globl EXT(__orll)
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.type EXT(__orll),@function
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.text
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.p2align 4
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EXT(__orll):
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P(or) gr9, gr11, gr9
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P2(or) gr8, gr10, gr8
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ret
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.Lend:
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.size EXT(__orll),.Lend-EXT(__orll)
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#endif
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#ifdef L_xorll
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/* gr8,gr9 = __xorll (long long a, long long b) */
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/* Note, gcc will never call this function, but it is present in case an
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ABI program calls it. */
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.globl EXT(__xorll)
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.type EXT(__xorll),@function
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.text
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.p2align 4
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EXT(__xorll):
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P(xor) gr9, gr11, gr9
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P2(xor) gr8, gr10, gr8
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ret
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.Lend:
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.size EXT(__xorll),.Lend-EXT(__xorll)
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#endif
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#ifdef L_notll
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/* gr8,gr9 = __notll (long long a) */
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/* Note, gcc will never call this function, but it is present in case an
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ABI program calls it. */
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.globl EXT(__notll)
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.type EXT(__notll),@function
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.text
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.p2align 4
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EXT(__notll):
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P(not) gr9, gr9
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P2(not) gr8, gr8
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ret
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.Lend:
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.size EXT(__notll),.Lend-EXT(__notll)
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#endif
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#ifdef L_cmov
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/* (void) __cmov (char *dest, const char *src, size_t len) */
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/*
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* void __cmov (char *dest, const char *src, size_t len)
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* {
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* size_t i;
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*
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* if (dest < src || dest > src+len)
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* {
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* for (i = 0; i < len; i++)
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* dest[i] = src[i];
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* }
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* else
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* {
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* while (len-- > 0)
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* dest[len] = src[len];
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* }
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* }
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*/
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.globl EXT(__cmov)
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.type EXT(__cmov),@function
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.text
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.p2align 4
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EXT(__cmov):
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P(cmp) gr8, gr9, icc0
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add gr9, gr10, gr4
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P(cmp) gr8, gr4, icc1
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bc icc0, 0, .Lfwd
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bls icc1, 0, .Lback
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.Lfwd:
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/* move bytes in a forward direction */
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P(setlos) #0, gr5
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cmp gr0, gr10, icc0
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P(subi) gr9, #1, gr9
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P2(subi) gr8, #1, gr8
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bnc icc0, 0, .Lret
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.Lfloop:
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/* forward byte move loop */
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addi gr5, #1, gr5
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P(ldsb) @(gr9, gr5), gr4
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cmp gr5, gr10, icc0
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P(stb) gr4, @(gr8, gr5)
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bc icc0, 0, .Lfloop
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ret
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.Lbloop:
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/* backward byte move loop body */
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ldsb @(gr9,gr10),gr4
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stb gr4,@(gr8,gr10)
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.Lback:
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P(cmpi) gr10, #0, icc0
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addi gr10, #-1, gr10
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bne icc0, 0, .Lbloop
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.Lret:
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ret
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.Lend:
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.size EXT(__cmov),.Lend-EXT(__cmov)
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#endif
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