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author | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2021-10-19 10:09:42 +0200 |
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committer | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2021-11-02 14:32:32 +0100 |
commit | 7acb5c78a75421851b778b463c88c232ce1dc184 (patch) | |
tree | b3ab5e7ff25cf6aea10c73064b604e5ead2e10b2 /target/mips | |
parent | adcff99a6b41c029841aee30582606e6ae196507 (diff) | |
download | qemu-7acb5c78a75421851b778b463c88c232ce1dc184.zip qemu-7acb5c78a75421851b778b463c88c232ce1dc184.tar.gz qemu-7acb5c78a75421851b778b463c88c232ce1dc184.tar.bz2 |
target/mips: Convert MSA VEC instruction format to decodetree
Convert 3-register instructions with implicit data formats
to decodetree.
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>
Message-Id: <20211028210843.2120802-18-f4bug@amsat.org>
Diffstat (limited to 'target/mips')
-rw-r--r-- | target/mips/tcg/msa.decode | 8 | ||||
-rw-r--r-- | target/mips/tcg/msa_translate.c | 98 |
2 files changed, 31 insertions, 75 deletions
diff --git a/target/mips/tcg/msa.decode b/target/mips/tcg/msa.decode index b6ac805..afcb868 100644 --- a/target/mips/tcg/msa.decode +++ b/target/mips/tcg/msa.decode @@ -27,6 +27,7 @@ @ldst ...... sa:s10 ws:5 wd:5 .... df:2 &msa_i @bz_v ...... ... .. wt:5 sa:16 &msa_bz df=3 @bz ...... ... df:2 wt:5 sa:16 &msa_bz +@vec ...... ..... wt:5 ws:5 wd:5 ...... &msa_r df=0 @2r ...... ........ df:2 ws:5 wd:5 ...... &msa_r wt=0 @2rf ...... ......... . ws:5 wd:5 ...... &msa_r wt=0 df=%2r_df_w @u5 ...... ... df:2 sa:5 ws:5 wd:5 ...... &msa_i @@ -83,6 +84,13 @@ BNZ 010001 111 .. ..... ................ @bz SRARI 011110 010 ....... ..... ..... 001010 @bit SRLRI 011110 011 ....... ..... ..... 001010 @bit + AND_V 011110 00000 ..... ..... ..... 011110 @vec + OR_V 011110 00001 ..... ..... ..... 011110 @vec + NOR_V 011110 00010 ..... ..... ..... 011110 @vec + XOR_V 011110 00011 ..... ..... ..... 011110 @vec + BMNZ_V 011110 00100 ..... ..... ..... 011110 @vec + BMZ_V 011110 00101 ..... ..... ..... 011110 @vec + BSEL_V 011110 00110 ..... ..... ..... 011110 @vec FILL 011110 11000000 .. ..... ..... 011110 @2r PCNT 011110 11000001 .. ..... ..... 011110 @2r NLOC 011110 11000010 .. ..... ..... 011110 @2r diff --git a/target/mips/tcg/msa_translate.c b/target/mips/tcg/msa_translate.c index c6e3828..45a6b60 100644 --- a/target/mips/tcg/msa_translate.c +++ b/target/mips/tcg/msa_translate.c @@ -45,19 +45,9 @@ enum { OPC_MSA_3RF_1A = 0x1A | OPC_MSA, OPC_MSA_3RF_1B = 0x1B | OPC_MSA, OPC_MSA_3RF_1C = 0x1C | OPC_MSA, - OPC_MSA_VEC = 0x1E | OPC_MSA, }; enum { - /* VEC instruction */ - OPC_AND_V = (0x00 << 21) | OPC_MSA_VEC, - OPC_OR_V = (0x01 << 21) | OPC_MSA_VEC, - OPC_NOR_V = (0x02 << 21) | OPC_MSA_VEC, - OPC_XOR_V = (0x03 << 21) | OPC_MSA_VEC, - OPC_BMNZ_V = (0x04 << 21) | OPC_MSA_VEC, - OPC_BMZ_V = (0x05 << 21) | OPC_MSA_VEC, - OPC_BSEL_V = (0x06 << 21) | OPC_MSA_VEC, - /* 3R instruction df(bits 22..21) = _b, _h, _w, d */ OPC_SLL_df = (0x0 << 23) | OPC_MSA_3R_0D, OPC_ADDV_df = (0x0 << 23) | OPC_MSA_3R_0E, @@ -517,6 +507,29 @@ TRANS(SAT_U, trans_msa_bit, gen_helper_msa_sat_u_df); TRANS(SRARI, trans_msa_bit, gen_helper_msa_srari_df); TRANS(SRLRI, trans_msa_bit, gen_helper_msa_srlri_df); +static bool trans_msa_3r(DisasContext *ctx, arg_msa_r *a, + gen_helper_piii *gen_msa_3r) +{ + if (!check_msa_enabled(ctx)) { + return true; + } + + gen_msa_3r(cpu_env, + tcg_constant_i32(a->wd), + tcg_constant_i32(a->ws), + tcg_constant_i32(a->wt)); + + return true; +} + +TRANS(AND_V, trans_msa_3r, gen_helper_msa_and_v); +TRANS(OR_V, trans_msa_3r, gen_helper_msa_or_v); +TRANS(NOR_V, trans_msa_3r, gen_helper_msa_nor_v); +TRANS(XOR_V, trans_msa_3r, gen_helper_msa_xor_v); +TRANS(BMNZ_V, trans_msa_3r, gen_helper_msa_bmnz_v); +TRANS(BMZ_V, trans_msa_3r, gen_helper_msa_bmz_v); +TRANS(BSEL_V, trans_msa_3r, gen_helper_msa_bsel_v); + static void gen_msa_3r(DisasContext *ctx) { #define MASK_MSA_3R(op) (MASK_MSA_MINOR(op) | (op & (0x7 << 23))) @@ -1899,68 +1912,6 @@ TRANS(FTINT_U, trans_msa_2rf, gen_helper_msa_ftint_u_df); TRANS(FFINT_S, trans_msa_2rf, gen_helper_msa_ffint_s_df); TRANS(FFINT_U, trans_msa_2rf, gen_helper_msa_ffint_u_df); -static void gen_msa_vec_v(DisasContext *ctx) -{ -#define MASK_MSA_VEC(op) (MASK_MSA_MINOR(op) | (op & (0x1f << 21))) - uint8_t wt = (ctx->opcode >> 16) & 0x1f; - uint8_t ws = (ctx->opcode >> 11) & 0x1f; - uint8_t wd = (ctx->opcode >> 6) & 0x1f; - TCGv_i32 twd = tcg_const_i32(wd); - TCGv_i32 tws = tcg_const_i32(ws); - TCGv_i32 twt = tcg_const_i32(wt); - - switch (MASK_MSA_VEC(ctx->opcode)) { - case OPC_AND_V: - gen_helper_msa_and_v(cpu_env, twd, tws, twt); - break; - case OPC_OR_V: - gen_helper_msa_or_v(cpu_env, twd, tws, twt); - break; - case OPC_NOR_V: - gen_helper_msa_nor_v(cpu_env, twd, tws, twt); - break; - case OPC_XOR_V: - gen_helper_msa_xor_v(cpu_env, twd, tws, twt); - break; - case OPC_BMNZ_V: - gen_helper_msa_bmnz_v(cpu_env, twd, tws, twt); - break; - case OPC_BMZ_V: - gen_helper_msa_bmz_v(cpu_env, twd, tws, twt); - break; - case OPC_BSEL_V: - gen_helper_msa_bsel_v(cpu_env, twd, tws, twt); - break; - default: - MIPS_INVAL("MSA instruction"); - gen_reserved_instruction(ctx); - break; - } - - tcg_temp_free_i32(twd); - tcg_temp_free_i32(tws); - tcg_temp_free_i32(twt); -} - -static void gen_msa_vec(DisasContext *ctx) -{ - switch (MASK_MSA_VEC(ctx->opcode)) { - case OPC_AND_V: - case OPC_OR_V: - case OPC_NOR_V: - case OPC_XOR_V: - case OPC_BMNZ_V: - case OPC_BMZ_V: - case OPC_BSEL_V: - gen_msa_vec_v(ctx); - break; - default: - MIPS_INVAL("MSA instruction"); - gen_reserved_instruction(ctx); - break; - } -} - static bool trans_MSA(DisasContext *ctx, arg_MSA *a) { uint32_t opcode = ctx->opcode; @@ -1989,9 +1940,6 @@ static bool trans_MSA(DisasContext *ctx, arg_MSA *a) case OPC_MSA_3RF_1C: gen_msa_3rf(ctx); break; - case OPC_MSA_VEC: - gen_msa_vec(ctx); - break; default: MIPS_INVAL("MSA instruction"); gen_reserved_instruction(ctx); |