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5 Commits

Author SHA1 Message Date
Philippe Mathieu-Daudé
d27fadddc6 target/mips/tx79: Salvage instructions description comment 
This comment describing the tx79 opcodes is helpful. As we
will implement these instructions in tx79_translate.c, move
the comment there.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210214175912.732946-15-f4bug@amsat.org>
 2021-03-13 23:43:30 +01:00
Philippe Mathieu-Daudé
94c882f7d1 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>
 2021-03-13 23:43:24 +01:00
Philippe Mathieu-Daudé
5a976c0025 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>
 2021-03-13 23:43:20 +01:00
Philippe Mathieu-Daudé
1f9408d550 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>
 2021-03-13 23:43:11 +01:00
Philippe Mathieu-Daudé
ffc672aa97 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>
 2021-03-13 23:43:07 +01:00