diff options
Diffstat (limited to 'sysdeps/alpha/div.S')
| -rw-r--r-- | sysdeps/alpha/div.S | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/sysdeps/alpha/div.S b/sysdeps/alpha/div.S new file mode 100644 index 0000000000..65573e6676 --- /dev/null +++ b/sysdeps/alpha/div.S @@ -0,0 +1,87 @@ +/* Copyright (C) 1996-2014 Free Software Foundation, Inc. + 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 + 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 C 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 C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#include "div_libc.h" + +#undef FRAME +#ifdef __alpha_fix__ +#define FRAME 0 +#else +#define FRAME 16 +#endif + + .set noat + + .align 4 + .globl div + .ent div +div: + .frame sp, FRAME, ra +#if FRAME > 0 + lda sp, -FRAME(sp) +#endif +#ifdef PROF + .set macro + ldgp gp, 0(pv) + lda AT, _mcount + jsr AT, (AT), _mcount + .set nomacro + .prologue 1 +#else + .prologue 0 +#endif + + beq $18, $divbyzero + excb + mf_fpcr $f10 + + _ITOFT2 $17, $f0, 0, $18, $f1, 8 + + cvtqt $f0, $f0 + cvtqt $f1, $f1 + divt/c $f0, $f1, $f0 + cvttq/c $f0, $f0 + excb + mt_fpcr $f10 + _FTOIT $f0, $0, 0 + + mull $0, $18, $1 + subl $17, $1, $1 + + stl $0, 0(a0) + stl $1, 4(a0) + mov a0, v0 + +#if FRAME > 0 + lda sp, FRAME(sp) +#endif + ret + +$divbyzero: + mov a0, v0 + lda a0, GEN_INTDIV + call_pal PAL_gentrap + stl zero, 0(v0) + stl zero, 4(v0) + +#if FRAME > 0 + lda sp, FRAME(sp) +#endif + ret + + .end div |