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Initialize quotient' and mask'.

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This commit is contained in:
Ulrich Drepper 1997-03-20 19:33:28 +00:00
parent 1059fb7661
commit cb23ff1f57
2 changed files with 19 additions and 21 deletions
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21
sysdeps/alpha/div.S
View File

@ -1,7 +1,6 @@
/* Copyright (C) 1996 Free Software Foundation, Inc. /* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
Contributed by Richard Henderson (rth@tamu.edu)
This file is part of the GNU C Library. This file is part of the GNU C Library.
Contributed by Richard Henderson <rth@tamu.edu>.
The GNU C Library is free software; you can redistribute it and/or The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as modify it under the terms of the GNU Library General Public License as
@ -14,10 +13,9 @@
Library General Public License for more details. Library General Public License for more details.
You should have received a copy of the GNU Library General Public You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If License along with the GNU C Library; see the file COPYING.LIB. If not,
not, write to the Free Software Foundation, Inc., 675 Mass Ave, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Cambridge, MA 02139, USA. */ Boston, MA 02111-1307, USA. */
#include <sysdep.h> #include <sysdep.h>
@ -44,7 +42,6 @@ div:
.prologue 0 .prologue 0
#endif #endif
#define dividend t0
#define divisor t1 #define divisor t1
#define mask t2 #define mask t2
#define quotient t3 #define quotient t3
@ -54,11 +51,13 @@ div:
#define compare t7 #define compare t7
/* find correct sign for input to unsigned divide loop. */ /* find correct sign for input to unsigned divide loop. */
negl a1, modulus # e0 :
negl a2, divisor # .. e1 :
sextl a1, a1 # e0 : sextl a1, a1 # e0 :
sextl a2, a2 # .. e1 : sextl a2, a2 # .. e1 :
negl a1, dividend # e0 : mov zero, quotient # e0 :
negl a2, divisor # .. e1 : mov 1, mask # .. e1 :
cmovge a1, a1, dividend # e0 : cmovge a1, a1, modulus # e0 :
cmovge a2, a2, divisor # .. e1 : cmovge a2, a2, divisor # .. e1 :
beq a2, $divbyzero # e1 : beq a2, $divbyzero # e1 :
unop # : unop # :

19
sysdeps/alpha/ldiv.S
View File

@ -1,7 +1,6 @@
/* Copyright (C) 1996 Free Software Foundation, Inc. /* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
Contributed by Richard Henderson (rth@tamu.edu)
This file is part of the GNU C Library. This file is part of the GNU C Library.
Contributed by Richard Henderson <rth@tamu.edu>.
The GNU C Library is free software; you can redistribute it and/or The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as modify it under the terms of the GNU Library General Public License as
@ -14,10 +13,9 @@
Library General Public License for more details. Library General Public License for more details.
You should have received a copy of the GNU Library General Public You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If License along with the GNU C Library; see the file COPYING.LIB. If not,
not, write to the Free Software Foundation, Inc., 675 Mass Ave, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Cambridge, MA 02139, USA. */ Boston, MA 02111-1307, USA. */
#include <sysdep.h> #include <sysdep.h>
@ -44,7 +42,6 @@ ldiv:
.prologue 0 .prologue 0
#endif #endif
#define dividend t0
#define divisor t1 #define divisor t1
#define mask t2 #define mask t2
#define quotient t3 #define quotient t3
@ -54,11 +51,13 @@ ldiv:
#define compare t7 #define compare t7
/* find correct sign for input to unsigned divide loop. */ /* find correct sign for input to unsigned divide loop. */
mov a1, dividend # e0 : mov a1, modulus # e0 :
mov a2, divisor # .. e1 : mov a2, divisor # .. e1 :
negq a1, tmp1 # e0 : negq a1, tmp1 # e0 :
negq a2, tmp2 # .. e1 : negq a2, tmp2 # .. e1 :
cmovlt a1, tmp1, dividend # e0 : mov zero, quotient # e0 :
mov 1, mask # .. e1 :
cmovlt a1, tmp1, modulus # e0 :
cmovlt a2, tmp2, divisor # .. e1 : cmovlt a2, tmp2, divisor # .. e1 :
beq a2, $divbyzero # e1 : beq a2, $divbyzero # e1 :
unop # : unop # :