diff options
Diffstat (limited to 'sysdeps/alpha/alphaev5/sub_n.s')
| -rw-r--r-- | sysdeps/alpha/alphaev5/sub_n.s | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/sysdeps/alpha/alphaev5/sub_n.s b/sysdeps/alpha/alphaev5/sub_n.s deleted file mode 100644 index 3c706cf237..0000000000 --- a/sysdeps/alpha/alphaev5/sub_n.s +++ /dev/null @@ -1,149 +0,0 @@ - # Alpha __mpn_sub_n -- Subtract two limb vectors of the same length > 0 and - # store difference in a third limb vector. - - # Copyright (C) 1995 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, write to - # the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, - # MA 02111-1307, USA. - - - # INPUT PARAMETERS - # res_ptr $16 - # s1_ptr $17 - # s2_ptr $18 - # size $19 - - .set noreorder - .set noat -.text - .align 3 - .globl __mpn_sub_n - .ent __mpn_sub_n -__mpn_sub_n: - .frame $30,0,$26,0 - - or $31,$31,$25 # clear cy - subq $19,4,$19 # decr loop cnt - blt $19,.Lend2 # if less than 4 limbs, goto 2nd loop - # Start software pipeline for 1st loop - ldq $0,0($18) - ldq $1,8($18) - ldq $4,0($17) - ldq $5,8($17) - addq $17,32,$17 # update s1_ptr - ldq $2,16($18) - subq $4,$0,$20 # 1st main sub - ldq $3,24($18) - subq $19,4,$19 # decr loop cnt - ldq $6,-16($17) - cmpult $4,$20,$25 # compute cy from last sub - ldq $7,-8($17) - addq $1,$25,$28 # cy add - addq $18,32,$18 # update s2_ptr - subq $5,$28,$21 # 2nd main sub - cmpult $28,$25,$8 # compute cy from last add - blt $19,.Lend1 # if less than 4 limbs remain, jump - # 1st loop handles groups of 4 limbs in a software pipeline - .align 4 -.Loop: cmpult $5,$21,$25 # compute cy from last add - ldq $0,0($18) - or $8,$25,$25 # combine cy from the two adds - ldq $1,8($18) - addq $2,$25,$28 # cy add - ldq $4,0($17) - subq $6,$28,$22 # 3rd main sub - ldq $5,8($17) - cmpult $28,$25,$8 # compute cy from last add - cmpult $6,$22,$25 # compute cy from last add - stq $20,0($16) - or $8,$25,$25 # combine cy from the two adds - stq $21,8($16) - addq $3,$25,$28 # cy add - subq $7,$28,$23 # 4th main sub - cmpult $28,$25,$8 # compute cy from last add - cmpult $7,$23,$25 # compute cy from last add - addq $17,32,$17 # update s1_ptr - or $8,$25,$25 # combine cy from the two adds - addq $16,32,$16 # update res_ptr - addq $0,$25,$28 # cy add - ldq $2,16($18) - subq $4,$28,$20 # 1st main sub - ldq $3,24($18) - cmpult $28,$25,$8 # compute cy from last add - ldq $6,-16($17) - cmpult $4,$20,$25 # compute cy from last add - ldq $7,-8($17) - or $8,$25,$25 # combine cy from the two adds - subq $19,4,$19 # decr loop cnt - stq $22,-16($16) - addq $1,$25,$28 # cy add - stq $23,-8($16) - subq $5,$28,$21 # 2nd main sub - addq $18,32,$18 # update s2_ptr - cmpult $28,$25,$8 # compute cy from last add - bge $19,.Loop - # Finish software pipeline for 1st loop -.Lend1: cmpult $5,$21,$25 # compute cy from last add - or $8,$25,$25 # combine cy from the two adds - addq $2,$25,$28 # cy add - subq $6,$28,$22 # 3rd main sub - cmpult $28,$25,$8 # compute cy from last add - cmpult $6,$22,$25 # compute cy from last add - stq $20,0($16) - or $8,$25,$25 # combine cy from the two adds - stq $21,8($16) - addq $3,$25,$28 # cy add - subq $7,$28,$23 # 4th main sub - cmpult $28,$25,$8 # compute cy from last add - cmpult $7,$23,$25 # compute cy from last add - or $8,$25,$25 # combine cy from the two adds - addq $16,32,$16 # update res_ptr - stq $22,-16($16) - stq $23,-8($16) -.Lend2: addq $19,4,$19 # restore loop cnt - beq $19,.Lret - # Start software pipeline for 2nd loop - ldq $0,0($18) - ldq $4,0($17) - subq $19,1,$19 - beq $19,.Lend0 - # 2nd loop handles remaining 1-3 limbs - .align 4 -.Loop0: addq $0,$25,$28 # cy add - ldq $0,8($18) - subq $4,$28,$20 # main sub - ldq $1,8($17) - addq $18,8,$18 - cmpult $28,$25,$8 # compute cy from last add - addq $17,8,$17 - stq $20,0($16) - cmpult $4,$20,$25 # compute cy from last add - subq $19,1,$19 # decr loop cnt - or $8,$25,$25 # combine cy from the two adds - addq $16,8,$16 - or $1,$31,$4 - bne $19,.Loop0 -.Lend0: addq $0,$25,$28 # cy add - subq $4,$28,$20 # main sub - cmpult $28,$25,$8 # compute cy from last add - cmpult $4,$20,$25 # compute cy from last add - stq $20,0($16) - or $8,$25,$25 # combine cy from the two adds - -.Lret: or $25,$31,$0 # return cy - ret $31,($26),1 - .end __mpn_sub_n |