/*
* fp_util.S
*
* Copyright Roman Zippel, 1997. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, and the entire permission notice in its entirety,
* including the disclaimer of warranties.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* ALTERNATIVELY, this product may be distributed under the terms of
* the GNU General Public License, in which case the provisions of the GPL are
* required INSTEAD OF the above restrictions. (This clause is
* necessary due to a potential bad interaction between the GPL and
* the restrictions contained in a BSD-style copyright.)
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "fp_emu.h"
/*
* Here are lots of conversion and normalization functions mainly
* used by fp_scan.S
* Note that these functions are optimized for "normal" numbers,
* these are handled first and exit as fast as possible, this is
* especially important for fp_normalize_ext/fp_conv_ext2ext, as
* it's called very often.
* The register usage is optimized for fp_scan.S and which register
* is currently at that time unused, be careful if you want change
* something here. %d0 and %d1 is always usable, sometimes %d2 (or
* only the lower half) most function have to return the %a0
* unmodified, so that the caller can immediately reuse it.
*/
.globl fp_ill, fp_end
| exits from fp_scan:
| illegal instruction
fp_ill:
printf ,"fp_illegal\n"
rts
| completed instruction
fp_end:
tst.l (TASK_MM-8,%a2)
jmi 1f
tst.l (TASK_MM-4,%a2)
jmi 1f
tst.l (TASK_MM,%a2)
jpl 2f
1: printf ,"oops:%p,%p,%p\
