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[0/2] target/arm: Support single-precision only FPUs

Message ID 20190614104457.24703-1-peter.maydell@linaro.org
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Series target/arm: Support single-precision only FPUs | expand

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Peter Maydell June 14, 2019, 10:44 a.m. UTC 
The Arm architecture permits FPUs which have only single-precision
support, not double-precision; Cortex-M4 and Cortex-M33 are
both like that. Now that we've refactored the VFP code to use
decodetree it's fairly easy to add the necessary checks on the
MVFR0 FPDP field so that we UNDEF any double-precision instructions
on CPUs like this.

The first patch fixes some no-visible-effect typos in the
names of struct arguments to some functions (caused by
cut-n-paste errors); not really related but I noticed them
while I was working on this.

thanks
-- PMM

Peter Maydell (2):
  target/arm: Fix typos in trans function prototypes
  target/arm: Only implement doubles if the FPU supports them

 target/arm/cpu.h               |   6 ++
 target/arm/translate-vfp.inc.c | 112 ++++++++++++++++++++++++++++-----
 2 files changed, 104 insertions(+), 14 deletions(-)

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2.20.1