xemu/target/mips/msa32.decode
Philippe Mathieu-Daudé 5f21f30d85 target/mips: Introduce decodetree helpers for MSA LSA/DLSA opcodes
Add the LSA opcode to the MSA32 decodetree config, add DLSA
to a new config for the MSA64 ASE, and call decode_msa64()
in the main decode_opc() loop.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201215225757.764263-23-f4bug@amsat.org>
2021-01-14 17:13:53 +01:00

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# MIPS SIMD Architecture Module instruction set
#
# Copyright (C) 2020 Philippe Mathieu-Daudé
#
# SPDX-License-Identifier: LGPL-2.1-or-later
#
# Reference:
# MIPS Architecture for Programmers Volume IV-j
# The MIPS32 SIMD Architecture Module, Revision 1.12
# (Document Number: MD00866-2B-MSA32-AFP-01.12)
#
&rtype rs rt rd sa
&msa_bz df wt s16
@lsa ...... rs:5 rt:5 rd:5 ... sa:2 ...... &rtype
@bz ...... ... .. wt:5 s16:16 &msa_bz df=3
@bz_df ...... ... df:2 wt:5 s16:16 &msa_bz
LSA 000000 ..... ..... ..... 000 .. 000101 @lsa
BZ_V 010001 01011 ..... ................ @bz
BNZ_V 010001 01111 ..... ................ @bz
BZ_x 010001 110 .. ..... ................ @bz_df
BNZ_x 010001 111 .. ..... ................ @bz_df
MSA 011110 --------------------------