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| author | Yongbok Kim <yongbok.kim@mips.com> | 2018-08-02 16:16:18 +0200 |
|---|---|---|
| committer | Aleksandar Markovic <amarkovic@wavecomp.com> | 2018-08-24 17:51:59 +0200 |
| commit | 642241870a029da1525ad1641e1c99d434580817 (patch) | |
| tree | a480fe2c6e043c8d0db1be51e17a46e0c19a58b3 | |
| parent | e0cf0e6586d6a2c7e56b58bdfb5a67cec04c2999 (diff) | |
| download | qemu-642241870a029da1525ad1641e1c99d434580817.zip qemu-642241870a029da1525ad1641e1c99d434580817.tar.gz qemu-642241870a029da1525ad1641e1c99d434580817.tar.bz2 | |
target/mips: Add emulation of misc nanoMIPS instructions (pool32axf)
Add emulation of misc nanoMIPS instructions situated in pool32axf.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Yongbok Kim <yongbok.kim@mips.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
| -rw-r--r-- | target/mips/translate.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/target/mips/translate.c b/target/mips/translate.c index 429ad23..c26ea68 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -17034,6 +17034,89 @@ static void gen_pool32a0_nanomips_insn(DisasContext *ctx) } } +static void gen_pool32axf_nanomips_insn(CPUMIPSState *env, DisasContext *ctx) +{ +#ifndef CONFIG_USER_ONLY + int rt = extract32(ctx->opcode, 21, 5); + int rs = extract32(ctx->opcode, 16, 5); +#endif + + switch (extract32(ctx->opcode, 6, 3)) { + case NM_POOL32AXF_4: + case NM_POOL32AXF_5: + switch (extract32(ctx->opcode, 9, 7)) { +#ifndef CONFIG_USER_ONLY + case NM_TLBP: + gen_cp0(env, ctx, OPC_TLBP, 0, 0); + break; + case NM_TLBR: + gen_cp0(env, ctx, OPC_TLBR, 0, 0); + break; + case NM_TLBWI: + gen_cp0(env, ctx, OPC_TLBWI, 0, 0); + break; + case NM_TLBWR: + gen_cp0(env, ctx, OPC_TLBWR, 0, 0); + break; + case NM_TLBINV: + gen_cp0(env, ctx, OPC_TLBINV, 0, 0); + break; + case NM_TLBINVF: + gen_cp0(env, ctx, OPC_TLBINVF, 0, 0); + break; + case NM_DI: + check_cp0_enabled(ctx); + { + TCGv t0 = tcg_temp_new(); + + save_cpu_state(ctx, 1); + gen_helper_di(t0, cpu_env); + gen_store_gpr(t0, rt); + /* Stop translation as we may have switched the execution mode */ + ctx->base.is_jmp = DISAS_STOP; + tcg_temp_free(t0); + } + break; + case NM_EI: + check_cp0_enabled(ctx); + { + TCGv t0 = tcg_temp_new(); + + save_cpu_state(ctx, 1); + gen_helper_ei(t0, cpu_env); + gen_store_gpr(t0, rt); + /* Stop translation as we may have switched the execution mode */ + ctx->base.is_jmp = DISAS_STOP; + tcg_temp_free(t0); + } + break; + case NM_RDPGPR: + gen_load_srsgpr(rs, rt); + break; + case NM_WRPGPR: + gen_store_srsgpr(rs, rt); + break; + case NM_WAIT: + gen_cp0(env, ctx, OPC_WAIT, 0, 0); + break; + case NM_DERET: + gen_cp0(env, ctx, OPC_DERET, 0, 0); + break; + case NM_ERETX: + gen_cp0(env, ctx, OPC_ERET, 0, 0); + break; +#endif + default: + generate_exception_end(ctx, EXCP_RI); + break; + } + break; + default: + generate_exception_end(ctx, EXCP_RI); + break; + } +} + static void gen_pool32f_nanomips_insn(DisasContext *ctx) { int rt, rs, rd; @@ -17404,6 +17487,14 @@ static int decode_nanomips_32_48_opc(CPUMIPSState *env, DisasContext *ctx) gen_pool32a0_nanomips_insn(ctx); break; case NM_POOL32A7: + switch (extract32(ctx->opcode, 3, 3)) { + case NM_POOL32AXF: + gen_pool32axf_nanomips_insn(env, ctx); + break; + default: + generate_exception_end(ctx, EXCP_RI); + break; + } break; default: generate_exception_end(ctx, EXCP_RI); |