summaryrefslogtreecommitdiffstats
path: root/qemu/linux-user/arm/nwfpe/fpa11_cpdo.c
diff options
context:
space:
mode:
Diffstat (limited to 'qemu/linux-user/arm/nwfpe/fpa11_cpdo.c')
-rw-r--r--qemu/linux-user/arm/nwfpe/fpa11_cpdo.c113
1 files changed, 0 insertions, 113 deletions
diff --git a/qemu/linux-user/arm/nwfpe/fpa11_cpdo.c b/qemu/linux-user/arm/nwfpe/fpa11_cpdo.c
deleted file mode 100644
index 94ac98aef..000000000
--- a/qemu/linux-user/arm/nwfpe/fpa11_cpdo.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- NetWinder Floating Point Emulator
- (c) Rebel.COM, 1998,1999
-
- 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, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "qemu/osdep.h"
-#include "fpa11.h"
-#include "fpopcode.h"
-
-unsigned int EmulateCPDO(const unsigned int opcode)
-{
- FPA11 *fpa11 = GET_FPA11();
- unsigned int Fd, nType, nDest, nRc = 1;
-
- //printk("EmulateCPDO(0x%08x)\n",opcode);
-
- /* Get the destination size. If not valid let Linux perform
- an invalid instruction trap. */
- nDest = getDestinationSize(opcode);
- if (typeNone == nDest) return 0;
-
- SetRoundingMode(opcode);
-
- /* 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];
- }
- }
-
- switch (nType)
- {
- case typeSingle : nRc = SingleCPDO(opcode); break;
- case typeDouble : nRc = DoubleCPDO(opcode); break;
- case typeExtended : nRc = ExtendedCPDO(opcode); break;
- default : 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. */
- Fd = getFd(opcode);
- nType = fpa11->fType[Fd];
- if ((0 != nRc) && (nDest != nType))
- {
- switch (nDest)
- {
- case typeSingle:
- {
- if (typeDouble == nType)
- fpa11->fpreg[Fd].fSingle =
- float64_to_float32(fpa11->fpreg[Fd].fDouble, &fpa11->fp_status);
- else
- fpa11->fpreg[Fd].fSingle =
- floatx80_to_float32(fpa11->fpreg[Fd].fExtended, &fpa11->fp_status);
- }
- break;
-
- case typeDouble:
- {
- if (typeSingle == nType)
- fpa11->fpreg[Fd].fDouble =
- float32_to_float64(fpa11->fpreg[Fd].fSingle, &fpa11->fp_status);
- else
- fpa11->fpreg[Fd].fDouble =
- floatx80_to_float64(fpa11->fpreg[Fd].fExtended, &fpa11->fp_status);
- }
- break;
-
- case typeExtended:
- {
- if (typeSingle == nType)
- fpa11->fpreg[Fd].fExtended =
- float32_to_floatx80(fpa11->fpreg[Fd].fSingle, &fpa11->fp_status);
- else
- fpa11->fpreg[Fd].fExtended =
- float64_to_floatx80(fpa11->fpreg[Fd].fDouble, &fpa11->fp_status);
- }
- break;
- }
-
- fpa11->fType[Fd] = nDest;
- }
-
- return nRc;
-}