MIPS: math-emu: Add support for the MIPS R6 MSUBF FPU instruction

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MIPS R6 introduced the following instruction:
Floating Point Fused Multiply Subtract:
MSUBF.fmt To perform a fused multiply-subtract of FP values.

MSUBF.fmt: FPR[fd] = FPR[fd] - (FPR[fs] x FPR[ft])

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10957/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

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Markos Chandras 2015-08-13 09:56:32 +02:00 • committed by Ralf Baechle

parent e24c3bec3e

commit 83d43305a1

5 changed files with 559 additions and 2 deletions

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4

arch/mips/math-emu/Makefile

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26

arch/mips/math-emu/cp1emu.c

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269

arch/mips/math-emu/dp_msubf.c

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4

arch/mips/math-emu/ieee754.h

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258

arch/mips/math-emu/sp_msubf.c

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