diff options
Diffstat (limited to 'sysdeps/rs6000')
| -rw-r--r-- | sysdeps/rs6000/add_n.s | 54 | ||||
| -rw-r--r-- | sysdeps/rs6000/addmul_1.s | 122 | ||||
| -rw-r--r-- | sysdeps/rs6000/lshift.s | 58 | ||||
| -rw-r--r-- | sysdeps/rs6000/mul_1.s | 109 | ||||
| -rw-r--r-- | sysdeps/rs6000/rshift.s | 56 | ||||
| -rw-r--r-- | sysdeps/rs6000/sub_n.s | 55 | ||||
| -rw-r--r-- | sysdeps/rs6000/submul_1.s | 127 |
7 files changed, 581 insertions, 0 deletions
diff --git a/sysdeps/rs6000/add_n.s b/sysdeps/rs6000/add_n.s new file mode 100644 index 0000000000..34ad9e1d2d --- /dev/null +++ b/sysdeps/rs6000/add_n.s @@ -0,0 +1,54 @@ +# IBM POWER __mpn_add_n -- Add two limb vectors of equal, non-zero length. + +# Copyright (C) 1992, 1994 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 Library General Public License as published by +# the Free Software Foundation; either version 2 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 Library General Public +# License for more details. + +# You should have received a copy of the GNU Library General Public License +# along with the GNU MP Library; see the file COPYING.LIB. If not, write to +# the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + +# INPUT PARAMETERS +# res_ptr r3 +# s1_ptr r4 +# s2_ptr r5 +# size r6 + + .toc + .extern __mpn_add_n[DS] + .extern .__mpn_add_n +.csect [PR] + .align 2 + .globl __mpn_add_n + .globl .__mpn_add_n + .csect __mpn_add_n[DS] +__mpn_add_n: + .long .__mpn_add_n, TOC[tc0], 0 + .csect [PR] +.__mpn_add_n: + mtctr 6 # copy size into CTR + l 8,0(4) # load least significant s1 limb + l 0,0(5) # load least significant s2 limb + cal 3,-4(3) # offset res_ptr, it's updated before used + a 7,0,8 # add least significant limbs, set cy + bdz Lend # If done, skip loop +Loop: lu 8,4(4) # load s1 limb and update s1_ptr + lu 0,4(5) # load s2 limb and update s2_ptr + stu 7,4(3) # store previous limb in load latecny slot + ae 7,0,8 # add new limbs with cy, set cy + bdn Loop # decrement CTR and loop back +Lend: st 7,4(3) # store ultimate result limb + lil 3,0 # load cy into ... + aze 3,3 # ... return value register + br diff --git a/sysdeps/rs6000/addmul_1.s b/sysdeps/rs6000/addmul_1.s new file mode 100644 index 0000000000..862b6139fe --- /dev/null +++ b/sysdeps/rs6000/addmul_1.s @@ -0,0 +1,122 @@ +# IBM POWER __mpn_addmul_1 -- Multiply a limb vector with a limb and add +# the result to a second limb vector. + +# Copyright (C) 1992, 1994 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 Library General Public License as published by +# the Free Software Foundation; either version 2 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 Library General Public +# License for more details. + +# You should have received a copy of the GNU Library General Public License +# along with the GNU MP Library; see the file COPYING.LIB. If not, write to +# the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + +# INPUT PARAMETERS +# res_ptr r3 +# s1_ptr r4 +# size r5 +# s2_limb r6 + +# The RS/6000 has no unsigned 32x32->64 bit multiplication instruction. To +# obtain that operation, we have to use the 32x32->64 signed multiplication +# instruction, and add the appropriate compensation to the high limb of the +# result. We add the multiplicand if the multiplier has its most significant +# bit set, and we add the multiplier if the multiplicand has its most +# significant bit set. We need to preserve the carry flag between each +# iteration, so we have to compute the compensation carefully (the natural, +# srai+and doesn't work). Since the POWER architecture has a branch unit +# we can branch in zero cycles, so that's how we perform the additions. + + .toc + .csect .__mpn_addmul_1[PR] + .align 2 + .globl __mpn_addmul_1 + .globl .__mpn_addmul_1 + .csect __mpn_addmul_1[DS] +__mpn_addmul_1: + .long .__mpn_addmul_1[PR], TOC[tc0], 0 + .csect .__mpn_addmul_1[PR] +.__mpn_addmul_1: + + cal 3,-4(3) + l 0,0(4) + cmpi 0,6,0 + mtctr 5 + mul 9,0,6 + srai 7,0,31 + and 7,7,6 + mfmq 8 + cax 9,9,7 + l 7,4(3) + a 8,8,7 # add res_limb + blt Lneg +Lpos: bdz Lend + +Lploop: lu 0,4(4) + stu 8,4(3) + cmpi 0,0,0 + mul 10,0,6 + mfmq 0 + ae 8,0,9 # low limb + old_cy_limb + old cy + l 7,4(3) + aze 10,10 # propagate cy to new cy_limb + a 8,8,7 # add res_limb + bge Lp0 + cax 10,10,6 # adjust high limb for negative limb from s1 +Lp0: bdz Lend0 + lu 0,4(4) + stu 8,4(3) + cmpi 0,0,0 + mul 9,0,6 + mfmq 0 + ae 8,0,10 + l 7,4(3) + aze 9,9 + a 8,8,7 + bge Lp1 + cax 9,9,6 # adjust high limb for negative limb from s1 +Lp1: bdn Lploop + + b Lend + +Lneg: cax 9,9,0 + bdz Lend +Lnloop: lu 0,4(4) + stu 8,4(3) + cmpi 0,0,0 + mul 10,0,6 + mfmq 7 + ae 8,7,9 + l 7,4(3) + ae 10,10,0 # propagate cy to new cy_limb + a 8,8,7 # add res_limb + bge Ln0 + cax 10,10,6 # adjust high limb for negative limb from s1 +Ln0: bdz Lend0 + lu 0,4(4) + stu 8,4(3) + cmpi 0,0,0 + mul 9,0,6 + mfmq 7 + ae 8,7,10 + l 7,4(3) + ae 9,9,0 # propagate cy to new cy_limb + a 8,8,7 # add res_limb + bge Ln1 + cax 9,9,6 # adjust high limb for negative limb from s1 +Ln1: bdn Lnloop + b Lend + +Lend0: cal 9,0(10) +Lend: st 8,4(3) + aze 3,9 + br diff --git a/sysdeps/rs6000/lshift.s b/sysdeps/rs6000/lshift.s new file mode 100644 index 0000000000..69c7502061 --- /dev/null +++ b/sysdeps/rs6000/lshift.s @@ -0,0 +1,58 @@ +# IBM POWER __mpn_lshift -- + +# Copyright (C) 1992, 1994 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 Library General Public License as published by +# the Free Software Foundation; either version 2 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 Library General Public +# License for more details. + +# You should have received a copy of the GNU Library General Public License +# along with the GNU MP Library; see the file COPYING.LIB. If not, write to +# the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + +# INPUT PARAMETERS +# res_ptr r3 +# s_ptr r4 +# size r5 +# cnt r6 + + .toc + .extern __mpn_lshift[DS] + .extern .__mpn_lshift +.csect [PR] + .align 2 + .globl __mpn_lshift + .globl .__mpn_lshift + .csect __mpn_lshift[DS] +__mpn_lshift: + .long .__mpn_lshift, TOC[tc0], 0 + .csect [PR] +.__mpn_lshift: + sli 0,5,2 + cax 9,3,0 + cax 4,4,0 + sfi 8,6,32 + mtctr 5 # put limb count in CTR loop register + lu 0,-4(4) # read most significant limb + sre 3,0,8 # compute carry out limb, and init MQ register + bdz Lend2 # if just one limb, skip loop + lu 0,-4(4) # read 2:nd most significant limb + sreq 7,0,8 # compute most significant limb of result + bdz Lend # if just two limb, skip loop +Loop: lu 0,-4(4) # load next lower limb + stu 7,-4(9) # store previous result during read latency + sreq 7,0,8 # compute result limb + bdn Loop # loop back until CTR is zero +Lend: stu 7,-4(9) # store 2:nd least significant limb +Lend2: sle 7,0,6 # compute least significant limb + st 7,-4(9) # store it" \ + br diff --git a/sysdeps/rs6000/mul_1.s b/sysdeps/rs6000/mul_1.s new file mode 100644 index 0000000000..f4fa894339 --- /dev/null +++ b/sysdeps/rs6000/mul_1.s @@ -0,0 +1,109 @@ +# IBM POWER __mpn_mul_1 -- Multiply a limb vector with a limb and store +# the result in a second limb vector. + +# Copyright (C) 1992, 1994 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 Library General Public License as published by +# the Free Software Foundation; either version 2 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 Library General Public +# License for more details. + +# You should have received a copy of the GNU Library General Public License +# along with the GNU MP Library; see the file COPYING.LIB. If not, write to +# the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + +# INPUT PARAMETERS +# res_ptr r3 +# s1_ptr r4 +# size r5 +# s2_limb r6 + +# The RS/6000 has no unsigned 32x32->64 bit multiplication instruction. To +# obtain that operation, we have to use the 32x32->64 signed multiplication +# instruction, and add the appropriate compensation to the high limb of the +# result. We add the multiplicand if the multiplier has its most significant +# bit set, and we add the multiplier if the multiplicand has its most +# significant bit set. We need to preserve the carry flag between each +# iteration, so we have to compute the compensation carefully (the natural, +# srai+and doesn't work). Since the POWER architecture has a branch unit +# we can branch in zero cycles, so that's how we perform the additions. + + .toc + .csect .__mpn_mul_1[PR] + .align 2 + .globl __mpn_mul_1 + .globl .__mpn_mul_1 + .csect __mpn_mul_1[DS] +__mpn_mul_1: + .long .__mpn_mul_1[PR], TOC[tc0], 0 + .csect .__mpn_mul_1[PR] +.__mpn_mul_1: + + cal 3,-4(3) + l 0,0(4) + cmpi 0,6,0 + mtctr 5 + mul 9,0,6 + srai 7,0,31 + and 7,7,6 + mfmq 8 + ai 0,0,0 # reset carry + cax 9,9,7 + blt Lneg +Lpos: bdz Lend +Lploop: lu 0,4(4) + stu 8,4(3) + cmpi 0,0,0 + mul 10,0,6 + mfmq 0 + ae 8,0,9 + bge Lp0 + cax 10,10,6 # adjust high limb for negative limb from s1 +Lp0: bdz Lend0 + lu 0,4(4) + stu 8,4(3) + cmpi 0,0,0 + mul 9,0,6 + mfmq 0 + ae 8,0,10 + bge Lp1 + cax 9,9,6 # adjust high limb for negative limb from s1 +Lp1: bdn Lploop + b Lend + +Lneg: cax 9,9,0 + bdz Lend +Lnloop: lu 0,4(4) + stu 8,4(3) + cmpi 0,0,0 + mul 10,0,6 + cax 10,10,0 # adjust high limb for negative s2_limb + mfmq 0 + ae 8,0,9 + bge Ln0 + cax 10,10,6 # adjust high limb for negative limb from s1 +Ln0: bdz Lend0 + lu 0,4(4) + stu 8,4(3) + cmpi 0,0,0 + mul 9,0,6 + cax 9,9,0 # adjust high limb for negative s2_limb + mfmq 0 + ae 8,0,10 + bge Ln1 + cax 9,9,6 # adjust high limb for negative limb from s1 +Ln1: bdn Lnloop + b Lend + +Lend0: cal 9,0(10) +Lend: st 8,4(3) + aze 3,9 + br diff --git a/sysdeps/rs6000/rshift.s b/sysdeps/rs6000/rshift.s new file mode 100644 index 0000000000..6056acc753 --- /dev/null +++ b/sysdeps/rs6000/rshift.s @@ -0,0 +1,56 @@ +# IBM POWER __mpn_rshift -- + +# Copyright (C) 1992, 1994 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 Library General Public License as published by +# the Free Software Foundation; either version 2 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 Library General Public +# License for more details. + +# You should have received a copy of the GNU Library General Public License +# along with the GNU MP Library; see the file COPYING.LIB. If not, write to +# the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + +# INPUT PARAMETERS +# res_ptr r3 +# s_ptr r4 +# size r5 +# cnt r6 + + .toc + .extern __mpn_rshift[DS] + .extern .__mpn_rshift +.csect [PR] + .align 2 + .globl __mpn_rshift + .globl .__mpn_rshift + .csect __mpn_rshift[DS] +__mpn_rshift: + .long .__mpn_rshift, TOC[tc0], 0 + .csect [PR] +.__mpn_rshift: + sfi 8,6,32 + mtctr 5 # put limb count in CTR loop register + l 0,0(4) # read least significant limb + ai 9,3,-4 # adjust res_ptr since it's offset in the stu:s + sle 3,0,8 # compute carry limb, and init MQ register + bdz Lend2 # if just one limb, skip loop + lu 0,4(4) # read 2:nd least significant limb + sleq 7,0,8 # compute least significant limb of result + bdz Lend # if just two limb, skip loop +Loop: lu 0,4(4) # load next higher limb + stu 7,4(9) # store previous result during read latency + sleq 7,0,8 # compute result limb + bdn Loop # loop back until CTR is zero +Lend: stu 7,4(9) # store 2:nd most significant limb +Lend2: sre 7,0,6 # compute most significant limb + st 7,4(9) # store it" \ + br diff --git a/sysdeps/rs6000/sub_n.s b/sysdeps/rs6000/sub_n.s new file mode 100644 index 0000000000..402fdcefc4 --- /dev/null +++ b/sysdeps/rs6000/sub_n.s @@ -0,0 +1,55 @@ +# IBM POWER __mpn_sub_n -- Subtract two limb vectors of the same length > 0 and +# store difference in a third limb vector. + +# Copyright (C) 1992, 1994 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 Library General Public License as published by +# the Free Software Foundation; either version 2 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 Library General Public +# License for more details. + +# You should have received a copy of the GNU Library General Public License +# along with the GNU MP Library; see the file COPYING.LIB. If not, write to +# the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + +# INPUT PARAMETERS +# res_ptr r3 +# s1_ptr r4 +# s2_ptr r5 +# size r6 + + .toc + .extern __mpn_sub_n[DS] + .extern .__mpn_sub_n +.csect [PR] + .align 2 + .globl __mpn_sub_n + .globl .__mpn_sub_n + .csect __mpn_sub_n[DS] +__mpn_sub_n: + .long .__mpn_sub_n, TOC[tc0], 0 + .csect [PR] +.__mpn_sub_n: + mtctr 6 # copy size into CTR + l 8,0(4) # load least significant s1 limb + l 0,0(5) # load least significant s2 limb + cal 3,-4(3) # offset res_ptr, it's updated before used + sf 7,0,8 # add least significant limbs, set cy + bdz Lend # If done, skip loop +Loop: lu 8,4(4) # load s1 limb and update s1_ptr + lu 0,4(5) # load s2 limb and update s2_ptr + stu 7,4(3) # store previous limb in load latecny slot + sfe 7,0,8 # add new limbs with cy, set cy + bdn Loop # decrement CTR and loop back +Lend: st 7,4(3) # store ultimate result limb + sfe 3,0,0 # load !cy into ... + sfi 3,3,0 # ... return value register + br diff --git a/sysdeps/rs6000/submul_1.s b/sysdeps/rs6000/submul_1.s new file mode 100644 index 0000000000..252633261d --- /dev/null +++ b/sysdeps/rs6000/submul_1.s @@ -0,0 +1,127 @@ +# IBM POWER __mpn_submul_1 -- Multiply a limb vector with a limb and subtract +# the result from a second limb vector. + +# Copyright (C) 1992, 1994 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 Library General Public License as published by +# the Free Software Foundation; either version 2 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 Library General Public +# License for more details. + +# You should have received a copy of the GNU Library General Public License +# along with the GNU MP Library; see the file COPYING.LIB. If not, write to +# the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + +# INPUT PARAMETERS +# res_ptr r3 +# s1_ptr r4 +# size r5 +# s2_limb r6 + +# The RS/6000 has no unsigned 32x32->64 bit multiplication instruction. To +# obtain that operation, we have to use the 32x32->64 signed multiplication +# instruction, and add the appropriate compensation to the high limb of the +# result. We add the multiplicand if the multiplier has its most significant +# bit set, and we add the multiplier if the multiplicand has its most +# significant bit set. We need to preserve the carry flag between each +# iteration, so we have to compute the compensation carefully (the natural, +# srai+and doesn't work). Since the POWER architecture has a branch unit +# we can branch in zero cycles, so that's how we perform the additions. + + .toc + .csect .__mpn_submul_1[PR] + .align 2 + .globl __mpn_submul_1 + .globl .__mpn_submul_1 + .csect __mpn_submul_1[DS] +__mpn_submul_1: + .long .__mpn_submul_1[PR], TOC[tc0], 0 + .csect .__mpn_submul_1[PR] +.__mpn_submul_1: + + cal 3,-4(3) + l 0,0(4) + cmpi 0,6,0 + mtctr 5 + mul 9,0,6 + srai 7,0,31 + and 7,7,6 + mfmq 11 + cax 9,9,7 + l 7,4(3) + sf 8,11,7 # add res_limb + a 11,8,11 # invert cy (r11 is junk) + blt Lneg +Lpos: bdz Lend + +Lploop: lu 0,4(4) + stu 8,4(3) + cmpi 0,0,0 + mul 10,0,6 + mfmq 0 + ae 11,0,9 # low limb + old_cy_limb + old cy + l 7,4(3) + aze 10,10 # propagate cy to new cy_limb + sf 8,11,7 # add res_limb + a 11,8,11 # invert cy (r11 is junk) + bge Lp0 + cax 10,10,6 # adjust high limb for negative limb from s1 +Lp0: bdz Lend0 + lu 0,4(4) + stu 8,4(3) + cmpi 0,0,0 + mul 9,0,6 + mfmq 0 + ae 11,0,10 + l 7,4(3) + aze 9,9 + sf 8,11,7 + a 11,8,11 # invert cy (r11 is junk) + bge Lp1 + cax 9,9,6 # adjust high limb for negative limb from s1 +Lp1: bdn Lploop + + b Lend + +Lneg: cax 9,9,0 + bdz Lend +Lnloop: lu 0,4(4) + stu 8,4(3) + cmpi 0,0,0 + mul 10,0,6 + mfmq 7 + ae 11,7,9 + l 7,4(3) + ae 10,10,0 # propagate cy to new cy_limb + sf 8,11,7 # add res_limb + a 11,8,11 # invert cy (r11 is junk) + bge Ln0 + cax 10,10,6 # adjust high limb for negative limb from s1 +Ln0: bdz Lend0 + lu 0,4(4) + stu 8,4(3) + cmpi 0,0,0 + mul 9,0,6 + mfmq 7 + ae 11,7,10 + l 7,4(3) + ae 9,9,0 # propagate cy to new cy_limb + sf 8,11,7 # add res_limb + a 11,8,11 # invert cy (r11 is junk) + bge Ln1 + cax 9,9,6 # adjust high limb for negative limb from s1 +Ln1: bdn Lnloop + b Lend + +Lend0: cal 9,0(10) +Lend: st 8,4(3) + aze 3,9 + br |