On 11/19/20 3:56 PM, Peter Maydell wrote: > v8.1M adds new encodings of VLLDM and VLSTM (where bit 7 is set). > The only difference is that: > * the old T1 encodings UNDEF if the implementation implements 32 > Dregs (this is currently architecturally impossible for M-profile) > * the new T2 encodings have the implementation-defined option to > read from memory (discarding the data) or write UNKNOWN values to > memory for the stack slots that would be D16-D31 > > We choose not to make those accesses, so for us the two > instructions behave identically assuming they don't UNDEF. > > Signed-off-by: Peter Maydell <peter.mayd...@linaro.org> > --- > target/arm/m-nocp.decode | 2 +- > target/arm/translate-vfp.c.inc | 25 +++++++++++++++++++++++++ > 2 files changed, 26 insertions(+), 1 deletion(-)
Reviewed-by: Richard Henderson <richard.hender...@linaro.org> r~
