Bit 7 of L4_loadw_phys is valid through v81 but reserved starting with v83. Decode it as a legacy don't-care bit, then reject it for v83 and later.
Signed-off-by: Brian Cain <[email protected]> --- target/hexagon/decode.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/target/hexagon/decode.c b/target/hexagon/decode.c index 89e961331ff..9e8ff5d608c 100644 --- a/target/hexagon/decode.c +++ b/target/hexagon/decode.c @@ -721,6 +721,11 @@ int decode_packet(DisasContext *ctx, int max_words, const uint32_t *words, /* Invalid instruction encoding */ return 0; } + /* Bit 7 of L4_loadw_phys became reserved in v83. */ + if (ctx->hex_def->hex_version >= HEX_VER_V83 && + insn->opcode == L4_loadw_phys && (encoding32 & 0x80)) { + return 0; + } /* * If we saw an extender, mark next word extended so immediate * decode works -- 2.34.1
