| 1 | /** @file
|
|---|
| 2 | * innotek Portable Runtime / No-CRT - math.h, x86 inlined functions.
|
|---|
| 3 | */
|
|---|
| 4 |
|
|---|
| 5 | /*
|
|---|
| 6 | * Copyright (C) 2006-2007 innotek GmbH
|
|---|
| 7 | *
|
|---|
| 8 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 9 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 10 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 11 | * General Public License as published by the Free Software Foundation,
|
|---|
| 12 | * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
|
|---|
| 13 | * distribution. VirtualBox OSE is distributed in the hope that it will
|
|---|
| 14 | * be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 15 | */
|
|---|
| 16 |
|
|---|
| 17 | #ifndef ___iprt_nocrt_x86_math_h
|
|---|
| 18 | #define ___iprt_nocrt_x86_math_h
|
|---|
| 19 |
|
|---|
| 20 | #include <iprt/asm.h>
|
|---|
| 21 |
|
|---|
| 22 | #if RT_INLINE_ASM_GNU_STYLE
|
|---|
| 23 |
|
|---|
| 24 | DECLINLINE(long double) inline_atan2l(long double lrd1, long double lrd2)
|
|---|
| 25 | {
|
|---|
| 26 | long double lrdResult;
|
|---|
| 27 | __asm__ __volatile__("fpatan"
|
|---|
| 28 | : "=t" (lrdResult)
|
|---|
| 29 | : "u" (lrd1),
|
|---|
| 30 | "0" (lrd2)
|
|---|
| 31 | : "st(1)");
|
|---|
| 32 | return lrdResult;
|
|---|
| 33 | }
|
|---|
| 34 |
|
|---|
| 35 | DECLINLINE(long double) inline_rintl(long double lrd)
|
|---|
| 36 | {
|
|---|
| 37 | long double lrdResult;
|
|---|
| 38 | __asm__ __volatile__("frndint"
|
|---|
| 39 | : "=t" (lrdResult)
|
|---|
| 40 | : "0" (lrd));
|
|---|
| 41 | return lrdResult;
|
|---|
| 42 | }
|
|---|
| 43 |
|
|---|
| 44 | DECLINLINE(float) inline_rintf(float rf)
|
|---|
| 45 | {
|
|---|
| 46 | return (float)inline_rintl(rf);
|
|---|
| 47 | }
|
|---|
| 48 |
|
|---|
| 49 | DECLINLINE(double) inline_rint(double rd)
|
|---|
| 50 | {
|
|---|
| 51 | return (double)inline_rintl(rd);
|
|---|
| 52 | }
|
|---|
| 53 |
|
|---|
| 54 | DECLINLINE(long double) inline_sqrtl(long double lrd)
|
|---|
| 55 | {
|
|---|
| 56 | long double lrdResult;
|
|---|
| 57 | __asm__ __volatile__("fsqrt"
|
|---|
| 58 | : "=t" (lrdResult)
|
|---|
| 59 | : "0" (lrd));
|
|---|
| 60 | return lrdResult;
|
|---|
| 61 | }
|
|---|
| 62 |
|
|---|
| 63 | DECLINLINE(float) inline_sqrtf(float rf)
|
|---|
| 64 | {
|
|---|
| 65 | return (float)inline_sqrtl(rf);
|
|---|
| 66 | }
|
|---|
| 67 |
|
|---|
| 68 | DECLINLINE(double) inline_sqrt(double rd)
|
|---|
| 69 | {
|
|---|
| 70 | return (double)inline_sqrt(rd);
|
|---|
| 71 | }
|
|---|
| 72 |
|
|---|
| 73 |
|
|---|
| 74 | # undef atan2l
|
|---|
| 75 | # define atan2l(lrd1, lrd2) inline_atan2l(lrd1, lrd2)
|
|---|
| 76 | # undef rint
|
|---|
| 77 | # define rint(rd) inline_rint(rd)
|
|---|
| 78 | # undef rintf
|
|---|
| 79 | # define rintf(rf) inline_rintf(rf)
|
|---|
| 80 | # undef rintl
|
|---|
| 81 | # define rintl(lrd) inline_rintl(lrd)
|
|---|
| 82 | # undef sqrt
|
|---|
| 83 | # define sqrt(rd) inline_sqrt(rd)
|
|---|
| 84 | # undef sqrtf
|
|---|
| 85 | # define sqrtf(rf) inline_sqrtf(rf)
|
|---|
| 86 | # undef sqrtl
|
|---|
| 87 | # define sqrtl(lrd) inline_sqrtl(lrd)
|
|---|
| 88 |
|
|---|
| 89 | #endif /* RT_INLINE_ASM_GNU_STYLE */
|
|---|
| 90 |
|
|---|
| 91 | #endif
|
|---|
| 92 |
|
|---|
