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2021-01-14target/mips: Introduce decodetree helpers for Release6 LSA/DLSA opcodesPhilippe Mathieu-Daudé
LSA and LDSA opcodes are also available with MIPS release 6. Introduce the decodetree config files and call the decode() helpers 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: <20201215225757.764263-24-f4bug@amsat.org>
2021-01-14target/mips: Extract LSA/DLSA translation generatorsPhilippe Mathieu-Daudé
Extract gen_lsa() from translate.c and explode it as gen_LSA() and gen_DLSA(). Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201215225757.764263-22-f4bug@amsat.org>
2021-01-14target/mips: Use decode_ase_msa() generated from decodetreePhilippe Mathieu-Daudé
Now that we can decode the MSA ASE with decode_ase_msa(), use it and remove the previous code, now unreachable. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201215225757.764263-21-f4bug@amsat.org> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
2021-01-14target/mips: Introduce decode tree bindings for MSA ASEPhilippe Mathieu-Daudé
Introduce the 'msa32' decodetree config for the 32-bit MSA ASE. We start by decoding: - the branch instructions, - all instructions based on the MSA opcode. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201215225757.764263-20-f4bug@amsat.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
2021-01-14target/mips: Declare gen_msa/_branch() in 'translate.h'Philippe Mathieu-Daudé
Make gen_msa() and gen_msa_branch() public declarations so we can keep calling them once extracted from the big translate.c in the next commit. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201215225757.764263-18-f4bug@amsat.org> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
2021-01-14target/mips: Extract msa_translate_init() from mips_tcg_init()Philippe Mathieu-Daudé
The msa_wr_d[] registers are only initialized/used by MSA. They are declared static. We want to move them to the new 'msa_translate.c' unit in few commits, without having to declare them global (with extern). Extract first the logic initialization of the MSA registers from the generic initialization. We will later move this function along with the MSA registers to the new C unit. Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20201208003702.4088927-8-f4bug@amsat.org>
2021-01-14target/mips/translate: Expose check_mips_64() to 32-bit modePhilippe Mathieu-Daudé
To allow compiling 64-bit specific translation code more generically (and removing #ifdef'ry), allow compiling check_mips_64() on 32-bit targets. If ever called on 32-bit, we obviously emit a reserved instruction exception. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20201215225757.764263-3-f4bug@amsat.org>
2021-01-14target/mips: Extract FPU specific definitions to translate.hPhilippe Mathieu-Daudé
Extract FPU specific definitions that can be used by ISA / ASE / extensions to translate.h header. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201214183739.500368-16-f4bug@amsat.org>
2021-01-14target/mips: Declare generic FPU / Coprocessor functions in translate.hPhilippe Mathieu-Daudé
Some FPU / Coprocessor translation functions / registers can be used by ISA / ASE / extensions out of the big translate.c file. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201214183739.500368-15-f4bug@amsat.org>
2021-01-14target/mips: Replace gen_exception_end(EXCP_RI) by gen_rsvd_instructionPhilippe Mathieu-Daudé
gen_reserved_instruction() is easier to read than generate_exception_end(ctx, EXCP_RI), replace it. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201214183739.500368-12-f4bug@amsat.org>
2021-01-14target/mips/translate: Add declarations for generic codePhilippe Mathieu-Daudé
Some CPU translation functions / registers / macros and definitions can be used by ISA / ASE / extensions out of the big translate.c file. Declare them in "translate.h". Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201207235539.4070364-3-f4bug@amsat.org>
2021-01-14target/mips/translate: Extract DisasContext structurePhilippe Mathieu-Daudé
Extract DisasContext to a new 'translate.h' header so different translation files (ISA, ASE, extensions) can use it. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201207235539.4070364-2-f4bug@amsat.org>
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