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qemu/target/mips/tx79.decode

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target/mips/tx79: Move MFHI1 / MFLO1 opcodes to decodetree Introduce decodetree structure to decode the tx79 opcodes. Start it by moving the existing MFHI1 and MFLO1 opcodes. Remove unnecessary comments. As the TX79 share opcodes with the TX19/TX39/TX49 CPUs, we introduce the decode_ext_txx9() dispatcher where we will add the other decoders later. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210214175912.732946-9-f4bug@amsat.org>
2021-02-14 19:57:24 +03:00
# Toshiba C790's instruction set
#
# Copyright (C) 2021 Philippe Mathieu-Daudé
#
# SPDX-License-Identifier: LGPL-2.1-or-later
#
# Toshiba Appendix B C790-Specific Instruction Set Details
###########################################################################
# Named attribute sets. These are used to make nice(er) names
# when creating helpers common to those for the individual
# instruction patterns.
&rtype rs rt rd sa
###########################################################################
# Named instruction formats. These are generally used to
# reduce the amount of duplication between instruction patterns.
target/mips/tx79: Move PCPYLD / PCPYUD opcodes to decodetree Move PCPYLD (Parallel Copy Lower Doubleword) and PCPYUD (Parallel Copy Upper Doubleword) to decodetree. Remove unnecessary code / comments. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210214175912.732946-13-f4bug@amsat.org>
2021-02-13 14:04:43 +03:00
@rs_rt_rd ...... rs:5 rt:5 rd:5 ..... ...... &rtype sa=0
target/mips/tx79: Move PCPYH opcode to decodetree Move the existing PCPYH opcode (Parallel Copy Halfword) to decodetree. Remove unnecessary code / comments. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210214175912.732946-12-f4bug@amsat.org>
2021-02-13 13:57:56 +03:00
@rt_rd ...... ..... rt:5 rd:5 ..... ...... &rtype rs=0 sa=0
target/mips/tx79: Move MTHI1 / MTLO1 opcodes to decodetree Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210214175912.732946-10-f4bug@amsat.org>
2021-02-14 19:20:19 +03:00
@rs ...... rs:5 ..... .......... ...... &rtype rt=0 rd=0 sa=0
target/mips/tx79: Move MFHI1 / MFLO1 opcodes to decodetree Introduce decodetree structure to decode the tx79 opcodes. Start it by moving the existing MFHI1 and MFLO1 opcodes. Remove unnecessary comments. As the TX79 share opcodes with the TX19/TX39/TX49 CPUs, we introduce the decode_ext_txx9() dispatcher where we will add the other decoders later. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210214175912.732946-9-f4bug@amsat.org>
2021-02-14 19:57:24 +03:00
@rd ...... .......... rd:5 ..... ...... &rtype rs=0 rt=0 sa=0
###########################################################################
MFHI1 011100 0000000000 ..... 00000 010000 @rd
target/mips/tx79: Move MTHI1 / MTLO1 opcodes to decodetree Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210214175912.732946-10-f4bug@amsat.org>
2021-02-14 19:20:19 +03:00
MTHI1 011100 ..... 0000000000 00000 010001 @rs
target/mips/tx79: Move MFHI1 / MFLO1 opcodes to decodetree Introduce decodetree structure to decode the tx79 opcodes. Start it by moving the existing MFHI1 and MFLO1 opcodes. Remove unnecessary comments. As the TX79 share opcodes with the TX19/TX39/TX49 CPUs, we introduce the decode_ext_txx9() dispatcher where we will add the other decoders later. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210214175912.732946-9-f4bug@amsat.org>
2021-02-14 19:57:24 +03:00
MFLO1 011100 0000000000 ..... 00000 010010 @rd
target/mips/tx79: Move MTHI1 / MTLO1 opcodes to decodetree Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210214175912.732946-10-f4bug@amsat.org>
2021-02-14 19:20:19 +03:00
MTLO1 011100 ..... 0000000000 00000 010011 @rs
target/mips/tx79: Move PCPYH opcode to decodetree Move the existing PCPYH opcode (Parallel Copy Halfword) to decodetree. Remove unnecessary code / comments. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210214175912.732946-12-f4bug@amsat.org>
2021-02-13 13:57:56 +03:00
target/mips/tx79: Move PCPYLD / PCPYUD opcodes to decodetree Move PCPYLD (Parallel Copy Lower Doubleword) and PCPYUD (Parallel Copy Upper Doubleword) to decodetree. Remove unnecessary code / comments. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210214175912.732946-13-f4bug@amsat.org>
2021-02-13 14:04:43 +03:00
# MMI2
PCPYLD 011100 ..... ..... ..... 01110 001001 @rs_rt_rd
target/mips/tx79: Move PCPYH opcode to decodetree Move the existing PCPYH opcode (Parallel Copy Halfword) to decodetree. Remove unnecessary code / comments. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210214175912.732946-12-f4bug@amsat.org>
2021-02-13 13:57:56 +03:00
# MMI3
target/mips/tx79: Move PCPYLD / PCPYUD opcodes to decodetree Move PCPYLD (Parallel Copy Lower Doubleword) and PCPYUD (Parallel Copy Upper Doubleword) to decodetree. Remove unnecessary code / comments. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210214175912.732946-13-f4bug@amsat.org>
2021-02-13 14:04:43 +03:00
PCPYUD 011100 ..... ..... ..... 01110 101001 @rs_rt_rd
target/mips/tx79: Move PCPYH opcode to decodetree Move the existing PCPYH opcode (Parallel Copy Halfword) to decodetree. Remove unnecessary code / comments. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210214175912.732946-12-f4bug@amsat.org>
2021-02-13 13:57:56 +03:00
PCPYH 011100 00000 ..... ..... 11011 101001 @rt_rd
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