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-rw-r--r--sysdeps/sparc/sparc32/sub_n.S328
1 files changed, 0 insertions, 328 deletions
diff --git a/sysdeps/sparc/sparc32/sub_n.S b/sysdeps/sparc/sparc32/sub_n.S
deleted file mode 100644
index 22ca71fa93..0000000000
--- a/sysdeps/sparc/sparc32/sub_n.S
+++ /dev/null
@@ -1,328 +0,0 @@
-! SPARC __mpn_sub_n -- Subtract two limb vectors of the same length > 0 and
-! store difference in a third limb vector.
-!
-! Copyright (C) 1995-2017 Free Software Foundation, Inc.
-!
-! This file is part of the GNU MP Library.
-!
-! The GNU MP Library is free software; you can redistribute it and/or modify
-! it under the terms of the GNU Lesser General Public License as published by
-! the Free Software Foundation; either version 2.1 of the License, or (at your
-! option) any later version.
-!
-! The GNU MP Library 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 Lesser General Public
-! License for more details.
-!
-! You should have received a copy of the GNU Lesser General Public License
-! along with the GNU MP Library; see the file COPYING.LIB. If not,
-! see <http://www.gnu.org/licenses/>.
-
-
-! INPUT PARAMETERS
-#define RES_PTR %o0
-#define S1_PTR %o1
-#define S2_PTR %o2
-#define SIZE %o3
-
-#include <sysdep.h>
-
-ENTRY(__mpn_sub_n)
- xor S2_PTR,RES_PTR,%g1
- andcc %g1,4,%g0
- bne LOC(1) ! branch if alignment differs
- nop
-! ** V1a **
- andcc RES_PTR,4,%g0 ! RES_PTR unaligned? Side effect: cy=0
- be LOC(v1) ! if no, branch
- nop
-/* Add least significant limb separately to align RES_PTR and S2_PTR */
- ld [S1_PTR],%g4
- add S1_PTR,4,S1_PTR
- ld [S2_PTR],%g2
- add S2_PTR,4,S2_PTR
- add SIZE,-1,SIZE
- subcc %g4,%g2,%o4
- st %o4,[RES_PTR]
- add RES_PTR,4,RES_PTR
-LOC(v1):
- addx %g0,%g0,%o4 ! save cy in register
- cmp SIZE,2 ! if SIZE < 2 ...
- bl LOC(end2) ! ... branch to tail code
- subcc %g0,%o4,%g0 ! restore cy
-
- ld [S1_PTR+0],%g4
- addcc SIZE,-10,SIZE
- ld [S1_PTR+4],%g1
- ldd [S2_PTR+0],%g2
- blt LOC(fin1)
- subcc %g0,%o4,%g0 ! restore cy
-/* Add blocks of 8 limbs until less than 8 limbs remain */
-LOC(loop1):
- subxcc %g4,%g2,%o4
- ld [S1_PTR+8],%g4
- subxcc %g1,%g3,%o5
- ld [S1_PTR+12],%g1
- ldd [S2_PTR+8],%g2
- std %o4,[RES_PTR+0]
- subxcc %g4,%g2,%o4
- ld [S1_PTR+16],%g4
- subxcc %g1,%g3,%o5
- ld [S1_PTR+20],%g1
- ldd [S2_PTR+16],%g2
- std %o4,[RES_PTR+8]
- subxcc %g4,%g2,%o4
- ld [S1_PTR+24],%g4
- subxcc %g1,%g3,%o5
- ld [S1_PTR+28],%g1
- ldd [S2_PTR+24],%g2
- std %o4,[RES_PTR+16]
- subxcc %g4,%g2,%o4
- ld [S1_PTR+32],%g4
- subxcc %g1,%g3,%o5
- ld [S1_PTR+36],%g1
- ldd [S2_PTR+32],%g2
- std %o4,[RES_PTR+24]
- addx %g0,%g0,%o4 ! save cy in register
- addcc SIZE,-8,SIZE
- add S1_PTR,32,S1_PTR
- add S2_PTR,32,S2_PTR
- add RES_PTR,32,RES_PTR
- bge LOC(loop1)
- subcc %g0,%o4,%g0 ! restore cy
-
-LOC(fin1):
- addcc SIZE,8-2,SIZE
- blt LOC(end1)
- subcc %g0,%o4,%g0 ! restore cy
-/* Add blocks of 2 limbs until less than 2 limbs remain */
-LOC(loope1):
- subxcc %g4,%g2,%o4
- ld [S1_PTR+8],%g4
- subxcc %g1,%g3,%o5
- ld [S1_PTR+12],%g1
- ldd [S2_PTR+8],%g2
- std %o4,[RES_PTR+0]
- addx %g0,%g0,%o4 ! save cy in register
- addcc SIZE,-2,SIZE
- add S1_PTR,8,S1_PTR
- add S2_PTR,8,S2_PTR
- add RES_PTR,8,RES_PTR
- bge LOC(loope1)
- subcc %g0,%o4,%g0 ! restore cy
-LOC(end1):
- subxcc %g4,%g2,%o4
- subxcc %g1,%g3,%o5
- std %o4,[RES_PTR+0]
- addx %g0,%g0,%o4 ! save cy in register
-
- andcc SIZE,1,%g0
- be LOC(ret1)
- subcc %g0,%o4,%g0 ! restore cy
-/* Add last limb */
- ld [S1_PTR+8],%g4
- ld [S2_PTR+8],%g2
- subxcc %g4,%g2,%o4
- st %o4,[RES_PTR+8]
-
-LOC(ret1):
- retl
- addx %g0,%g0,%o0 ! return carry-out from most sign. limb
-
-LOC(1): xor S1_PTR,RES_PTR,%g1
- andcc %g1,4,%g0
- bne LOC(2)
- nop
-! ** V1b **
- andcc RES_PTR,4,%g0 ! RES_PTR unaligned? Side effect: cy=0
- be LOC(v1b) ! if no, branch
- nop
-/* Add least significant limb separately to align RES_PTR and S1_PTR */
- ld [S2_PTR],%g4
- add S2_PTR,4,S2_PTR
- ld [S1_PTR],%g2
- add S1_PTR,4,S1_PTR
- add SIZE,-1,SIZE
- subcc %g2,%g4,%o4
- st %o4,[RES_PTR]
- add RES_PTR,4,RES_PTR
-LOC(v1b):
- addx %g0,%g0,%o4 ! save cy in register
- cmp SIZE,2 ! if SIZE < 2 ...
- bl LOC(end2) ! ... branch to tail code
- subcc %g0,%o4,%g0 ! restore cy
-
- ld [S2_PTR+0],%g4
- addcc SIZE,-10,SIZE
- ld [S2_PTR+4],%g1
- ldd [S1_PTR+0],%g2
- blt LOC(fin1b)
- subcc %g0,%o4,%g0 ! restore cy
-/* Add blocks of 8 limbs until less than 8 limbs remain */
-LOC(loop1b):
- subxcc %g2,%g4,%o4
- ld [S2_PTR+8],%g4
- subxcc %g3,%g1,%o5
- ld [S2_PTR+12],%g1
- ldd [S1_PTR+8],%g2
- std %o4,[RES_PTR+0]
- subxcc %g2,%g4,%o4
- ld [S2_PTR+16],%g4
- subxcc %g3,%g1,%o5
- ld [S2_PTR+20],%g1
- ldd [S1_PTR+16],%g2
- std %o4,[RES_PTR+8]
- subxcc %g2,%g4,%o4
- ld [S2_PTR+24],%g4
- subxcc %g3,%g1,%o5
- ld [S2_PTR+28],%g1
- ldd [S1_PTR+24],%g2
- std %o4,[RES_PTR+16]
- subxcc %g2,%g4,%o4
- ld [S2_PTR+32],%g4
- subxcc %g3,%g1,%o5
- ld [S2_PTR+36],%g1
- ldd [S1_PTR+32],%g2
- std %o4,[RES_PTR+24]
- addx %g0,%g0,%o4 ! save cy in register
- addcc SIZE,-8,SIZE
- add S1_PTR,32,S1_PTR
- add S2_PTR,32,S2_PTR
- add RES_PTR,32,RES_PTR
- bge LOC(loop1b)
- subcc %g0,%o4,%g0 ! restore cy
-
-LOC(fin1b):
- addcc SIZE,8-2,SIZE
- blt LOC(end1b)
- subcc %g0,%o4,%g0 ! restore cy
-/* Add blocks of 2 limbs until less than 2 limbs remain */
-LOC(loope1b):
- subxcc %g2,%g4,%o4
- ld [S2_PTR+8],%g4
- subxcc %g3,%g1,%o5
- ld [S2_PTR+12],%g1
- ldd [S1_PTR+8],%g2
- std %o4,[RES_PTR+0]
- addx %g0,%g0,%o4 ! save cy in register
- addcc SIZE,-2,SIZE
- add S1_PTR,8,S1_PTR
- add S2_PTR,8,S2_PTR
- add RES_PTR,8,RES_PTR
- bge LOC(loope1b)
- subcc %g0,%o4,%g0 ! restore cy
-LOC(end1b):
- subxcc %g2,%g4,%o4
- subxcc %g3,%g1,%o5
- std %o4,[RES_PTR+0]
- addx %g0,%g0,%o4 ! save cy in register
-
- andcc SIZE,1,%g0
- be LOC(ret1b)
- subcc %g0,%o4,%g0 ! restore cy
-/* Add last limb */
- ld [S2_PTR+8],%g4
- ld [S1_PTR+8],%g2
- subxcc %g2,%g4,%o4
- st %o4,[RES_PTR+8]
-
-LOC(ret1b):
- retl
- addx %g0,%g0,%o0 ! return carry-out from most sign. limb
-
-! ** V2 **
-/* If we come here, the alignment of S1_PTR and RES_PTR as well as the
- alignment of S2_PTR and RES_PTR differ. Since there are only two ways
- things can be aligned (that we care about) we now know that the alignment
- of S1_PTR and S2_PTR are the same. */
-
-LOC(2): cmp SIZE,1
- be LOC(jone)
- nop
- andcc S1_PTR,4,%g0 ! S1_PTR unaligned? Side effect: cy=0
- be LOC(v2) ! if no, branch
- nop
-/* Add least significant limb separately to align S1_PTR and S2_PTR */
- ld [S1_PTR],%g4
- add S1_PTR,4,S1_PTR
- ld [S2_PTR],%g2
- add S2_PTR,4,S2_PTR
- add SIZE,-1,SIZE
- subcc %g4,%g2,%o4
- st %o4,[RES_PTR]
- add RES_PTR,4,RES_PTR
-
-LOC(v2):
- addx %g0,%g0,%o4 ! save cy in register
- addcc SIZE,-8,SIZE
- blt LOC(fin2)
- subcc %g0,%o4,%g0 ! restore cy
-/* Add blocks of 8 limbs until less than 8 limbs remain */
-LOC(loop2):
- ldd [S1_PTR+0],%g2
- ldd [S2_PTR+0],%o4
- subxcc %g2,%o4,%g2
- st %g2,[RES_PTR+0]
- subxcc %g3,%o5,%g3
- st %g3,[RES_PTR+4]
- ldd [S1_PTR+8],%g2
- ldd [S2_PTR+8],%o4
- subxcc %g2,%o4,%g2
- st %g2,[RES_PTR+8]
- subxcc %g3,%o5,%g3
- st %g3,[RES_PTR+12]
- ldd [S1_PTR+16],%g2
- ldd [S2_PTR+16],%o4
- subxcc %g2,%o4,%g2
- st %g2,[RES_PTR+16]
- subxcc %g3,%o5,%g3
- st %g3,[RES_PTR+20]
- ldd [S1_PTR+24],%g2
- ldd [S2_PTR+24],%o4
- subxcc %g2,%o4,%g2
- st %g2,[RES_PTR+24]
- subxcc %g3,%o5,%g3
- st %g3,[RES_PTR+28]
- addx %g0,%g0,%o4 ! save cy in register
- addcc SIZE,-8,SIZE
- add S1_PTR,32,S1_PTR
- add S2_PTR,32,S2_PTR
- add RES_PTR,32,RES_PTR
- bge LOC(loop2)
- subcc %g0,%o4,%g0 ! restore cy
-
-LOC(fin2):
- addcc SIZE,8-2,SIZE
- blt LOC(end2)
- subcc %g0,%o4,%g0 ! restore cy
-LOC(loope2):
- ldd [S1_PTR+0],%g2
- ldd [S2_PTR+0],%o4
- subxcc %g2,%o4,%g2
- st %g2,[RES_PTR+0]
- subxcc %g3,%o5,%g3
- st %g3,[RES_PTR+4]
- addx %g0,%g0,%o4 ! save cy in register
- addcc SIZE,-2,SIZE
- add S1_PTR,8,S1_PTR
- add S2_PTR,8,S2_PTR
- add RES_PTR,8,RES_PTR
- bge LOC(loope2)
- subcc %g0,%o4,%g0 ! restore cy
-LOC(end2):
- andcc SIZE,1,%g0
- be LOC(ret2)
- subcc %g0,%o4,%g0 ! restore cy
-/* Add last limb */
-LOC(jone):
- ld [S1_PTR],%g4
- ld [S2_PTR],%g2
- subxcc %g4,%g2,%o4
- st %o4,[RES_PTR]
-
-LOC(ret2):
- retl
- addx %g0,%g0,%o0 ! return carry-out from most sign. limb
-
-END(__mpn_sub_n)
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-25 21:53:28 +0000