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/* Library functions.
   Copyright (C) 2000, 2003 Free Software Foundation, Inc.
   Contributed by Red Hat, Inc.
  
   This file is part of GCC.
  
   GCC is free software ; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation * either version 2, or (at your option)
   any later version.
  
   GCC is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY ; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
  
   You should have received a copy of the GNU General Public License
   along with GCC; see the file COPYING.  If not, write to
   the Free Software Foundation, 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.  */

/* As a special exception, if you link this library with other files,
   some of which are compiled with GCC, to produce an executable,
   this library does not by itself cause the resulting executable
   to be covered by the GNU General Public License.
   This exception does not however invalidate any other reasons why
   the executable file might be covered by the GNU General Public License.  */

#include <frv-asm.h>


#ifdef L_cmpll
/* icc0 = __cmpll (long long a, long long b)  */

        .file   "_cmpll.s"
        .globl  EXT(__cmpll)
        .type   EXT(__cmpll),@function
        .text
        .p2align 4
EXT(__cmpll):
        cmp     gr8, gr10, icc0
        ckeq    icc0, cc4
        P(ccmp) gr9, gr11, cc4, 1
        ret
.Lend:
        .size   EXT(__cmpll),.Lend-EXT(__cmpll)
#endif /* L_cmpll */

#ifdef L_cmpf
/* icc0 = __cmpf (float a, float b) */
/* Note, because this function returns the result in ICC0, it means it can't
   handle NaNs.  */

        .file   "_cmpf.s"
        .globl  EXT(__cmpf)
        .type   EXT(__cmpf),@function
        .text
        .p2align 4
EXT(__cmpf):
#ifdef __FRV_HARD_FLOAT__       /* floating point instructions available */
        movgf   gr8, fr0
        P(movgf) gr9, fr1
        setlos  #1, gr8
        fcmps   fr0, fr1, fcc0
        P(fcklt) fcc0, cc0
        fckeq   fcc0, cc1
        csub    gr0, gr8, gr8, cc0, 1
        cmov    gr0, gr8, cc1, 1
        cmpi    gr8, 0, icc0
        ret
#else                           /* no floating point instructions available */
        movsg   lr, gr4
        addi    sp, #-16, sp
        sti     gr4, @(sp, 8)
        st      fp, @(sp, gr0)
        mov     sp, fp
        call    EXT(__cmpsf2)
        cmpi    gr8, #0, icc0
        ldi     @(sp, 8), gr4
        movgs   gr4, lr
        ld      @(sp,gr0), fp
        addi    sp, #16, sp
        ret
#endif
.Lend:
        .size   EXT(__cmpf),.Lend-EXT(__cmpf)
#endif

#ifdef L_cmpd
/* icc0 = __cmpd (double a, double b) */
/* Note, because this function returns the result in ICC0, it means it can't
   handle NaNs.  */

        .file   "_cmpd.s"
        .globl  EXT(__cmpd)
        .type   EXT(__cmpd),@function
        .text
        .p2align 4
EXT(__cmpd):
        movsg   lr, gr4
        addi    sp, #-16, sp
        sti     gr4, @(sp, 8)
        st      fp, @(sp, gr0)
        mov     sp, fp
        call    EXT(__cmpdf2)
        cmpi    gr8, #0, icc0
        ldi     @(sp, 8), gr4
        movgs   gr4, lr
        ld      @(sp,gr0), fp
        addi    sp, #16, sp
        ret
.Lend:
        .size   EXT(__cmpd),.Lend-EXT(__cmpd)
#endif

#ifdef L_addll
/* gr8,gr9 = __addll (long long a, long long b) */
/* Note, gcc will never call this function, but it is present in case an
   ABI program calls it.  */

        .file   "_addll.s"
        .globl  EXT(__addll)
        .type   EXT(__addll),@function
        .text
        .p2align
EXT(__addll):
        addcc   gr9, gr11, gr9, icc0
        addx    gr8, gr10, gr8, icc0
        ret
.Lend:
        .size   EXT(__addll),.Lend-EXT(__addll)
#endif

#ifdef L_subll
/* gr8,gr9 = __subll (long long a, long long b) */
/* Note, gcc will never call this function, but it is present in case an
   ABI program calls it.  */

        .file   "_subll.s"
        .globl  EXT(__subll)
        .type   EXT(__subll),@function
        .text
        .p2align 4
EXT(__subll):
        subcc   gr9, gr11, gr9, icc0
        subx    gr8, gr10, gr8, icc0
        ret
.Lend:
        .size   EXT(__subll),.Lend-EXT(__subll)
#endif

#ifdef L_andll
/* gr8,gr9 = __andll (long long a, long long b) */
/* Note, gcc will never call this function, but it is present in case an
   ABI program calls it.  */

        .file   "_andll.s"
        .globl  EXT(__andll)
        .type   EXT(__andll),@function
        .text
        .p2align 4
EXT(__andll):
        P(and)  gr9, gr11, gr9
        P2(and) gr8, gr10, gr8
        ret
.Lend:
        .size   EXT(__andll),.Lend-EXT(__andll)
#endif

#ifdef L_orll
/* gr8,gr9 = __orll (long long a, long long b) */
/* Note, gcc will never call this function, but it is present in case an
   ABI program calls it.  */

        .file   "_orll.s"
        .globl  EXT(__orll)
        .type   EXT(__orll),@function
        .text
        .p2align 4
EXT(__orll):
        P(or)   gr9, gr11, gr9
        P2(or)  gr8, gr10, gr8
        ret
.Lend:
        .size   EXT(__orll),.Lend-EXT(__orll)
#endif

#ifdef L_xorll
/* gr8,gr9 = __xorll (long long a, long long b) */
/* Note, gcc will never call this function, but it is present in case an
   ABI program calls it.  */

        .file   "_xorll.s"
        .globl  EXT(__xorll)
        .type   EXT(__xorll),@function
        .text
        .p2align 4
EXT(__xorll):
        P(xor)  gr9, gr11, gr9
        P2(xor) gr8, gr10, gr8
        ret
.Lend:
        .size   EXT(__xorll),.Lend-EXT(__xorll)
#endif

#ifdef L_notll
/* gr8,gr9 = __notll (long long a) */
/* Note, gcc will never call this function, but it is present in case an
   ABI program calls it.  */

        .file   "_notll.s"
        .globl  EXT(__notll)
        .type   EXT(__notll),@function
        .text
        .p2align 4
EXT(__notll):
        P(not)  gr9, gr9
        P2(not) gr8, gr8
        ret
.Lend:
        .size   EXT(__notll),.Lend-EXT(__notll)
#endif

#ifdef L_cmov
/* (void) __cmov (char *dest, const char *src, size_t len) */
/*
 * void __cmov (char *dest, const char *src, size_t len)
 * {
 *   size_t i;
 * 
 *   if (dest < src || dest > src+len)
 *     {
 *       for (i = 0; i < len; i++)
 *       dest[i] = src[i];
 *     }
 *   else
 *     {
 *       while (len-- > 0)
 *       dest[len] = src[len];
 *     }
 * }
 */

        .file   "_cmov.s"
        .globl  EXT(__cmov)
        .type   EXT(__cmov),@function
        .text
        .p2align 4
EXT(__cmov):
        P(cmp)  gr8, gr9, icc0
        add     gr9, gr10, gr4
        P(cmp)  gr8, gr4, icc1
        bc      icc0, 0, .Lfwd
        bls     icc1, 0, .Lback
.Lfwd:
        /* move bytes in a forward direction */
        P(setlos) #0, gr5
        cmp     gr0, gr10, icc0
        P(subi) gr9, #1, gr9
        P2(subi) gr8, #1, gr8
        bnc     icc0, 0, .Lret
.Lfloop:
        /* forward byte move loop */
        addi    gr5, #1, gr5
        P(ldsb) @(gr9, gr5), gr4
        cmp     gr5, gr10, icc0
        P(stb)  gr4, @(gr8, gr5)
        bc      icc0, 0, .Lfloop
        ret
.Lbloop:
        /* backward byte move loop body */
        ldsb    @(gr9,gr10),gr4
        stb     gr4,@(gr8,gr10)
.Lback:
        P(cmpi) gr10, #0, icc0
        addi    gr10, #-1, gr10
        bne     icc0, 0, .Lbloop
.Lret:
        ret
.Lend:
        .size    EXT(__cmov),.Lend-EXT(__cmov)
#endif