| /* Copyright (c) 2002 Michael Stumpf <mistumpf@de.pepperl-fuchs.com> |
| Copyright (c) 2006 Dmitry Xmelkov |
| All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions are met: |
| |
| * Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| * 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. |
| * Neither the name of the copyright holders nor the names of |
| contributors may be used to endorse or promote products derived |
| from this software without specific prior written permission. |
| |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR CONTRIBUTORS 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. */ |
| |
| /* $Id: fp_powsodd.S 1173 2007-01-14 15:04:40Z dmix $ */ |
| |
| #include "fp32def.h" |
| #include "asmdef.h" |
| |
| /* float __fp_powsodd (float A, ZH.ZL); |
| The __fp_powsodd() function calculates a polynom with only odd |
| powers of x. Result is rounded. |
| |
| Input: |
| rA3.rA2.rA1.rA0 - an 'x' arg |
| ZH.ZL - table address (in flash low 64K memory) |
| |
| Notes: |
| * As __fp_powsodd() is one of base function, square() is't used. |
| */ |
| |
| ENTRY __fp_powsodd |
| |
| push rA3 |
| push rA2 |
| push rA1 |
| push rA0 |
| |
| push ZH |
| push ZL |
| |
| X_movw rB0, rA0 |
| X_movw rB2, rA2 |
| rcall _U(__mulsf3) |
| |
| pop ZL |
| pop ZH |
| rcall _U(__fp_powser) |
| |
| pop rB0 |
| pop rB1 |
| pop rB2 |
| pop rB3 |
| rjmp _U(__mulsf3) |
| ENDFUNC |