diff options
| author | Taylor Simpson <ltaylorsimpson@gmail.com> | 2024-01-15 15:14:41 -0700 |
|---|---|---|
| committer | Brian Cain <bcain@quicinc.com> | 2024-01-21 22:02:33 -0800 |
| commit | 1547a2d3394d7ec87350ab8ca4022d5e0f20db01 (patch) | |
| tree | e6e271042c41bdbaa767e8c5fc4336fcf4f24aaf /target/hexagon/decode.h | |
| parent | 7ee328804c66d93f8ab0fde35384c4f01eb7844a (diff) | |
Hexagon (target/hexagon) Use QEMU decodetree (32-bit instructions)
The Decodetree Specification can be found here
https://www.qemu.org/docs/master/devel/decodetree.html
Covers all 32-bit instructions, including HVX
We generate separate decoders for each instruction class. The reason
will be more apparent in the next patch in this series.
We add 2 new scripts
gen_decodetree.py Generate the input to decodetree.py
gen_trans_funcs.py Generate the trans_* functions used by the
output of decodetree.py
Since the functions generated by decodetree.py take DisasContext * as an
argument, we add the argument to a couple of functions that didn't need
it previously. We also set the insn field in DisasContext during decode
because it is used by the trans_* functions.
There is a g_assert_not_reached() in decode_insns() in decode.c to
verify we never try to use the old decoder on 32-bit instructions
Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240115221443.365287-2-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
Diffstat (limited to 'target/hexagon/decode.h')
| -rw-r--r-- | target/hexagon/decode.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/target/hexagon/decode.h b/target/hexagon/decode.h index c66f5ea64d..3f3012b978 100644 --- a/target/hexagon/decode.h +++ b/target/hexagon/decode.h @@ -21,12 +21,13 @@ #include "cpu.h" #include "opcodes.h" #include "insn.h" +#include "translate.h" void decode_init(void); void decode_send_insn_to(Packet *packet, int start, int newloc); -int decode_packet(int max_words, const uint32_t *words, Packet *pkt, - bool disas_only); +int decode_packet(DisasContext *ctx, int max_words, const uint32_t *words, + Packet *pkt, bool disas_only); #endif |