| /* Copyright (C) 2004-2016 Free Software Foundation, Inc. |
| Contributed by Richard Henderson <rth@twiddle.net> |
| This file is part of the GNU C Library. |
| |
| 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" |
| |
| /* 32-bit signed int remainder. This is not a normal C function. Argument |
| registers are t10 and t11, the result goes in t12. Only t12 and AT may |
| be clobbered. |
| |
| The FPU can handle the division for all input values except zero. |
| All we have to do is compute the remainder via multiply-and-subtract. |
| |
| The FPCR save/restore is due to the fact that the EV6 _will_ set FPCR_INE |
| for cvttq/c even without /sui being set. It will not, however, properly |
| raise the exception, so we don't have to worry about FPCR_INED being clear |
| and so dying by SIGFPE. */ |
| |
| #ifndef EXTEND |
| #define EXTEND(S,D) sextl S, D |
| #endif |
| |
| .text |
| .align 4 |
| .globl __reml |
| .type __reml, @funcnoplt |
| .usepv __reml, no |
| |
| cfi_startproc |
| cfi_return_column (RA) |
| __reml: |
| lda sp, -FRAME(sp) |
| cfi_def_cfa_offset (FRAME) |
| CALL_MCOUNT |
| stt $f0, 0(sp) |
| excb |
| beq Y, DIVBYZERO |
| |
| stt $f1, 8(sp) |
| stt $f2, 16(sp) |
| cfi_rel_offset ($f0, 0) |
| cfi_rel_offset ($f1, 8) |
| cfi_rel_offset ($f2, 16) |
| mf_fpcr $f2 |
| |
| EXTEND (X, RV) |
| EXTEND (Y, AT) |
| _ITOFT2 RV, $f0, 24, AT, $f1, 32 |
| cvtqt $f0, $f0 |
| cvtqt $f1, $f1 |
| divt/c $f0, $f1, $f0 |
| cvttq/c $f0, $f0 |
| excb |
| mt_fpcr $f2 |
| _FTOIT $f0, RV, 24 |
| |
| ldt $f0, 0(sp) |
| mull RV, Y, RV |
| ldt $f1, 8(sp) |
| ldt $f2, 16(sp) |
| lda sp, FRAME(sp) |
| cfi_restore ($f0) |
| cfi_restore ($f1) |
| cfi_restore ($f2) |
| cfi_def_cfa_offset (0) |
| subl X, RV, RV |
| ret $31, (RA), 1 |
| |
| cfi_endproc |
| .size __reml, .-__reml |
| |
| DO_DIVBYZERO |