diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/nwfpe/fpa11_cpdo.c')
| -rw-r--r-- | ANDROID_3.4.5/arch/arm/nwfpe/fpa11_cpdo.c | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/ANDROID_3.4.5/arch/arm/nwfpe/fpa11_cpdo.c b/ANDROID_3.4.5/arch/arm/nwfpe/fpa11_cpdo.c deleted file mode 100644 index 2cebb152..00000000 --- a/ANDROID_3.4.5/arch/arm/nwfpe/fpa11_cpdo.c +++ /dev/null @@ -1,137 +0,0 @@ -/* - NetWinder Floating Point Emulator - (c) Rebel.COM, 1998,1999 - (c) Philip Blundell, 2001 - - Direct questions, comments to Scott Bambrough <scottb@netwinder.org> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program 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 General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#include "fpa11.h" -#include "fpopcode.h" - -unsigned int SingleCPDO(struct roundingData *roundData, const unsigned int opcode, FPREG * rFd); -unsigned int DoubleCPDO(struct roundingData *roundData, const unsigned int opcode, FPREG * rFd); -unsigned int ExtendedCPDO(struct roundingData *roundData, const unsigned int opcode, FPREG * rFd); - -unsigned int EmulateCPDO(const unsigned int opcode) -{ - FPA11 *fpa11 = GET_FPA11(); - FPREG *rFd; - unsigned int nType, nDest, nRc; - struct roundingData roundData; - - /* Get the destination size. If not valid let Linux perform - an invalid instruction trap. */ - nDest = getDestinationSize(opcode); - if (typeNone == nDest) - return 0; - - roundData.mode = SetRoundingMode(opcode); - roundData.precision = SetRoundingPrecision(opcode); - roundData.exception = 0; - - /* Compare the size of the operands in Fn and Fm. - Choose the largest size and perform operations in that size, - in order to make use of all the precision of the operands. - If Fm is a constant, we just grab a constant of a size - matching the size of the operand in Fn. */ - if (MONADIC_INSTRUCTION(opcode)) - nType = nDest; - else - nType = fpa11->fType[getFn(opcode)]; - - if (!CONSTANT_FM(opcode)) { - register unsigned int Fm = getFm(opcode); - if (nType < fpa11->fType[Fm]) { - nType = fpa11->fType[Fm]; - } - } - - rFd = &fpa11->fpreg[getFd(opcode)]; - - switch (nType) { - case typeSingle: - nRc = SingleCPDO(&roundData, opcode, rFd); - break; - case typeDouble: - nRc = DoubleCPDO(&roundData, opcode, rFd); - break; -#ifdef CONFIG_FPE_NWFPE_XP - case typeExtended: - nRc = ExtendedCPDO(&roundData, opcode, rFd); - break; -#endif - default: - nRc = 0; - } - - /* The CPDO functions used to always set the destination type - to be the same as their working size. */ - - if (nRc != 0) { - /* If the operation succeeded, check to see if the result in the - destination register is the correct size. If not force it - to be. */ - - fpa11->fType[getFd(opcode)] = nDest; - -#ifdef CONFIG_FPE_NWFPE_XP - if (nDest != nType) { - switch (nDest) { - case typeSingle: - { - if (typeDouble == nType) - rFd->fSingle = float64_to_float32(&roundData, rFd->fDouble); - else - rFd->fSingle = floatx80_to_float32(&roundData, rFd->fExtended); - } - break; - - case typeDouble: - { - if (typeSingle == nType) - rFd->fDouble = float32_to_float64(rFd->fSingle); - else - rFd->fDouble = floatx80_to_float64(&roundData, rFd->fExtended); - } - break; - - case typeExtended: - { - if (typeSingle == nType) - rFd->fExtended = float32_to_floatx80(rFd->fSingle); - else - rFd->fExtended = float64_to_floatx80(rFd->fDouble); - } - break; - } - } -#else - if (nDest != nType) { - if (nDest == typeSingle) - rFd->fSingle = float64_to_float32(&roundData, rFd->fDouble); - else - rFd->fDouble = float32_to_float64(rFd->fSingle); - } -#endif - } - - if (roundData.exception) - float_raise(roundData.exception); - - return nRc; -} |