This patchseries implements various minor v8.1M new features,
notably the branch-future and low-overhead-loop extensions.
(None of this will get enabled until we have enough to implement
a CPU model which has v8.1M, which will be the Cortex-M55, but
as usual we can get stuff into the tree gradually.)
Patch 1 is a decodetree fix suggested by Richard that is
necessary to avoid wrong-decode of the changes to t32.decode
by later patches.
(Apologies for the accidental mailbombing of the list with
stale patches due to a mangled command line on my first attempt
at sending this :-( )
thanks
-- PMM
Peter Maydell (10):
decodetree: Fix codegen for non-overlapping group inside overlapping
group
target/arm: Implement v8.1M NOCP handling
target/arm: Implement v8.1M conditional-select insns
target/arm: Make the t32 insn[25:23]=111 group non-overlapping
target/arm: Don't allow BLX imm for M-profile
target/arm: Implement v8.1M branch-future insns (as NOPs)
target/arm: Implement v8.1M low-overhead-loop instructions
target/arm: Fix has_vfp/has_neon ID reg squashing for M-profile
target/arm: Implement FPSCR.LTPSIZE for M-profile LOB extension
target/arm: Fix writing to FPSCR.FZ16 on M-profile
target/arm/cpu.h | 7 ++
target/arm/m-nocp.decode | 10 ++-
target/arm/t32.decode | 50 +++++++----
target/arm/cpu.c | 34 ++++---
target/arm/translate.c | 157 +++++++++++++++++++++++++++++++++
target/arm/vfp_helper.c | 30 +++++--
scripts/decodetree.py | 2 +-
target/arm/translate-vfp.c.inc | 17 +++-
8 files changed, 268 insertions(+), 39 deletions(-)
--
2.20.1
