diff options
Diffstat (limited to 'sysdeps/hppa/udiv_qrnnd.s')
| -rw-r--r-- | sysdeps/hppa/udiv_qrnnd.s | 82 |
1 files changed, 41 insertions, 41 deletions
diff --git a/sysdeps/hppa/udiv_qrnnd.s b/sysdeps/hppa/udiv_qrnnd.s index 9b45eb4..0532057 100644 --- a/sysdeps/hppa/udiv_qrnnd.s +++ b/sysdeps/hppa/udiv_qrnnd.s @@ -1,45 +1,45 @@ -; HP-PA __udiv_qrnnd division support, used from longlong.h. -; This version runs fast on pre-PA7000 CPUs. +;! HP-PA __udiv_qrnnd division support, used from longlong.h. +;! This version runs fast on pre-PA7000 CPUs. -; Copyright (C) 1993, 1994 Free Software Foundation, Inc. +;! Copyright (C) 1993, 1994 Free Software Foundation, Inc. -; This file is part of the GNU MP Library. +;! 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 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. +;! 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., 59 Temple Place - Suite 330, Boston, -; MA 02111-1307, USA. +;! 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., 59 Temple Place - Suite 330, Boston, +;! MA 02111-1307, USA. -; INPUT PARAMETERS -; rem_ptr gr26 -; n1 gr25 -; n0 gr24 -; d gr23 +;! INPUT PARAMETERS +;! rem_ptr gr26 +;! n1 gr25 +;! n0 gr24 +;! d gr23 -; The code size is a bit excessive. We could merge the last two ds;addc -; sequences by simply moving the "bb,< Odd" instruction down. The only -; trouble is the FFFFFFFF code that would need some hacking. +;! The code size is a bit excessive. We could merge the last two ds;addc +;! sequences by simply moving the "bb,< Odd" instruction down. The only +;! trouble is the FFFFFFFF code that would need some hacking. - .code + .text .export __udiv_qrnnd -__udiv_qrnnd +__udiv_qrnnd: .proc .callinfo frame=0,no_calls .entry comb,< %r23,0,L$largedivisor - sub %r0,%r23,%r1 ; clear cy as side-effect + sub %r0,%r23,%r1 ;! clear cy as side-effect ds %r0,%r1,%r0 addc %r24,%r24,%r24 ds %r25,%r23,%r25 @@ -111,12 +111,12 @@ __udiv_qrnnd bv 0(%r2) addc %r28,%r28,%r28 -L$largedivisor - extru %r24,31,1,%r19 ; r19 = n0 & 1 +L$largedivisor: + extru %r24,31,1,%r20 ;! r20 = n0 & 1 bb,< %r23,31,L$odd - extru %r23,30,31,%r22 ; r22 = d >> 1 - shd %r25,%r24,1,%r24 ; r24 = new n0 - extru %r25,30,31,%r25 ; r25 = new n1 + extru %r23,30,31,%r22 ;! r22 = d >> 1 + shd %r25,%r24,1,%r24 ;! r24 = new n0 + extru %r25,30,31,%r25 ;! r25 = new n1 sub %r0,%r22,%r21 ds %r0,%r21,%r0 addc %r24,%r24,%r24 @@ -185,14 +185,14 @@ L$largedivisor ds %r25,%r22,%r25 comclr,>= %r25,%r0,%r0 addl %r25,%r22,%r25 - sh1addl %r25,%r19,%r25 + sh1addl %r25,%r20,%r25 stws %r25,0(0,%r26) bv 0(%r2) addc %r24,%r24,%r28 -L$odd addib,sv,n 1,%r22,L$FF.. ; r22 = (d / 2 + 1) - shd %r25,%r24,1,%r24 ; r24 = new n0 - extru %r25,30,31,%r25 ; r25 = new n1 +L$odd: addib,sv,n 1,%r22,L$FF.. ;! r22 = (d / 2 + 1) + shd %r25,%r24,1,%r24 ;! r24 = new n0 + extru %r25,30,31,%r25 ;! r25 = new n1 sub %r0,%r22,%r21 ds %r0,%r21,%r0 addc %r24,%r24,%r24 @@ -262,8 +262,8 @@ L$odd addib,sv,n 1,%r22,L$FF.. ; r22 = (d / 2 + 1) addc %r24,%r24,%r28 comclr,>= %r25,%r0,%r0 addl %r25,%r22,%r25 - sh1addl %r25,%r19,%r25 -; We have computed (n1,,n0) / (d + 1), q' = r28, r' = r25 + sh1addl %r25,%r20,%r25 +;! We have computed (n1,,n0) / (d + 1), q' = r28, r' = r25 add,nuv %r28,%r25,%r25 addl %r25,%r1,%r25 addc %r0,%r28,%r28 @@ -273,9 +273,9 @@ L$odd addib,sv,n 1,%r22,L$FF.. ; r22 = (d / 2 + 1) bv 0(%r2) addc %r0,%r28,%r28 -; This is just a special case of the code above. -; We come here when d == 0xFFFFFFFF -L$FF.. add,uv %r25,%r24,%r24 +;! This is just a special case of the code above. +;! We come here when d == 0xFFFFFFFF +L$FF..: add,uv %r25,%r24,%r24 sub,<< %r24,%r23,%r0 ldo 1(%r24),%r24 stws %r24,0(0,%r26) |