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[Qemu-devel] [PATCH 0/3] target/xtensa: add basic FLIX support
From: |
Max Filippov |
Subject: |
[Qemu-devel] [PATCH 0/3] target/xtensa: add basic FLIX support |
Date: |
Wed, 30 Jan 2019 15:54:39 -0800 |
Hello,
this series adds limited support for FLIX instructions.
FLIX (flexible length instruction extensions) allows bundling multiple
opcodes in a single instruction. Each opcode is executed as if it was
the only opcode in the instruction. Opcodes may not simultaneously
modify same resource (register or state). Multiple branches, even
non-taken, are also not allowed in one instruction.
Instructions with opcodes that have circular dependencies between used
resources (e.g. opcode A uses resource U and modifies resource M, while
opcode B uses resource M and modifies resource U) are not supported in
this series.
Max Filippov (3):
target/xtensa: sort FLIX instruction opcodes
target/xtensa: add generic instruction post-processing
target/xtensa: move WINDOW_BASE SR update to postprocessing
target/xtensa/cpu.h | 5 +
target/xtensa/helper.h | 3 +-
target/xtensa/translate.c | 265 +++++++++++++++++++++++++++++++++++++++++----
target/xtensa/win_helper.c | 14 +--
4 files changed, 251 insertions(+), 36 deletions(-)
--
2.11.0
- [Qemu-devel] [PATCH 0/3] target/xtensa: add basic FLIX support,
Max Filippov <=