diff options
author | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2021-10-28 22:38:21 +0200 |
---|---|---|
committer | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2021-11-02 14:32:32 +0100 |
commit | 5c5b64000c751ed3f3535c17095161fea02db660 (patch) | |
tree | b50e9bbc02f34a16d98a94bda6cdcab52cf01b25 /target/mips/tcg/msa_translate.c | |
parent | ce121fe23443fbf885b3c0a583a91efd2efa6e10 (diff) |
target/mips: Convert MSA 2RF instruction format to decodetree
Convert 2-register floating-point operations 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: <20211028210843.2120802-15-f4bug@amsat.org>
Diffstat (limited to 'target/mips/tcg/msa_translate.c')
-rw-r--r-- | target/mips/tcg/msa_translate.c | 118 |
1 files changed, 33 insertions, 85 deletions
diff --git a/target/mips/tcg/msa_translate.c b/target/mips/tcg/msa_translate.c index 2a7fb925b0..704273dfd2 100644 --- a/target/mips/tcg/msa_translate.c +++ b/target/mips/tcg/msa_translate.c @@ -20,6 +20,11 @@ static int bit_m(DisasContext *ctx, int x); static int bit_df(DisasContext *ctx, int x); +static inline int plus_2(DisasContext *s, int x) +{ + return x + 2; +} + /* Include the auto-generated decoder. */ #include "decode-msa.c.inc" @@ -44,7 +49,7 @@ enum { }; enum { - /* VEC/2R/2RF instruction */ + /* VEC/2R 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, @@ -54,7 +59,6 @@ enum { OPC_BSEL_V = (0x06 << 21) | OPC_MSA_VEC, OPC_MSA_2R = (0x18 << 21) | OPC_MSA_VEC, - OPC_MSA_2RF = (0x19 << 21) | OPC_MSA_VEC, /* 2R instruction df(bits 17..16) = _b, _h, _w, _d */ OPC_FILL_df = (0x00 << 18) | OPC_MSA_2R, @@ -62,24 +66,6 @@ enum { OPC_NLOC_df = (0x02 << 18) | OPC_MSA_2R, OPC_NLZC_df = (0x03 << 18) | OPC_MSA_2R, - /* 2RF instruction df(bit 16) = _w, _d */ - OPC_FCLASS_df = (0x00 << 17) | OPC_MSA_2RF, - OPC_FTRUNC_S_df = (0x01 << 17) | OPC_MSA_2RF, - OPC_FTRUNC_U_df = (0x02 << 17) | OPC_MSA_2RF, - OPC_FSQRT_df = (0x03 << 17) | OPC_MSA_2RF, - OPC_FRSQRT_df = (0x04 << 17) | OPC_MSA_2RF, - OPC_FRCP_df = (0x05 << 17) | OPC_MSA_2RF, - OPC_FRINT_df = (0x06 << 17) | OPC_MSA_2RF, - OPC_FLOG2_df = (0x07 << 17) | OPC_MSA_2RF, - OPC_FEXUPL_df = (0x08 << 17) | OPC_MSA_2RF, - OPC_FEXUPR_df = (0x09 << 17) | OPC_MSA_2RF, - OPC_FFQL_df = (0x0A << 17) | OPC_MSA_2RF, - OPC_FFQR_df = (0x0B << 17) | OPC_MSA_2RF, - OPC_FTINT_S_df = (0x0C << 17) | OPC_MSA_2RF, - OPC_FTINT_U_df = (0x0D << 17) | OPC_MSA_2RF, - OPC_FFINT_S_df = (0x0E << 17) | OPC_MSA_2RF, - OPC_FFINT_U_df = (0x0F << 17) | OPC_MSA_2RF, - /* 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, @@ -1930,73 +1916,38 @@ static void gen_msa_2r(DisasContext *ctx) tcg_temp_free_i32(tws); } -static void gen_msa_2rf(DisasContext *ctx) +static bool trans_msa_2rf(DisasContext *ctx, arg_msa_r *a, + gen_helper_piii *gen_msa_2rf) { -#define MASK_MSA_2RF(op) (MASK_MSA_MINOR(op) | (op & (0x1f << 21)) | \ - (op & (0xf << 17))) - uint8_t ws = (ctx->opcode >> 11) & 0x1f; - uint8_t wd = (ctx->opcode >> 6) & 0x1f; - uint8_t df = (ctx->opcode >> 16) & 0x1; - TCGv_i32 twd = tcg_const_i32(wd); - TCGv_i32 tws = tcg_const_i32(ws); - /* adjust df value for floating-point instruction */ - TCGv_i32 tdf = tcg_constant_i32(DF_WORD + df); - - switch (MASK_MSA_2RF(ctx->opcode)) { - case OPC_FCLASS_df: - gen_helper_msa_fclass_df(cpu_env, tdf, twd, tws); - break; - case OPC_FTRUNC_S_df: - gen_helper_msa_ftrunc_s_df(cpu_env, tdf, twd, tws); - break; - case OPC_FTRUNC_U_df: - gen_helper_msa_ftrunc_u_df(cpu_env, tdf, twd, tws); - break; - case OPC_FSQRT_df: - gen_helper_msa_fsqrt_df(cpu_env, tdf, twd, tws); - break; - case OPC_FRSQRT_df: - gen_helper_msa_frsqrt_df(cpu_env, tdf, twd, tws); - break; - case OPC_FRCP_df: - gen_helper_msa_frcp_df(cpu_env, tdf, twd, tws); - break; - case OPC_FRINT_df: - gen_helper_msa_frint_df(cpu_env, tdf, twd, tws); - break; - case OPC_FLOG2_df: - gen_helper_msa_flog2_df(cpu_env, tdf, twd, tws); - break; - case OPC_FEXUPL_df: - gen_helper_msa_fexupl_df(cpu_env, tdf, twd, tws); - break; - case OPC_FEXUPR_df: - gen_helper_msa_fexupr_df(cpu_env, tdf, twd, tws); - break; - case OPC_FFQL_df: - gen_helper_msa_ffql_df(cpu_env, tdf, twd, tws); - break; - case OPC_FFQR_df: - gen_helper_msa_ffqr_df(cpu_env, tdf, twd, tws); - break; - case OPC_FTINT_S_df: - gen_helper_msa_ftint_s_df(cpu_env, tdf, twd, tws); - break; - case OPC_FTINT_U_df: - gen_helper_msa_ftint_u_df(cpu_env, tdf, twd, tws); - break; - case OPC_FFINT_S_df: - gen_helper_msa_ffint_s_df(cpu_env, tdf, twd, tws); - break; - case OPC_FFINT_U_df: - gen_helper_msa_ffint_u_df(cpu_env, tdf, twd, tws); - break; + if (!check_msa_enabled(ctx)) { + return true; } - tcg_temp_free_i32(twd); - tcg_temp_free_i32(tws); + gen_msa_2rf(cpu_env, + tcg_constant_i32(a->df), + tcg_constant_i32(a->wd), + tcg_constant_i32(a->ws)); + + return true; } +TRANS(FCLASS, trans_msa_2rf, gen_helper_msa_fclass_df); +TRANS(FTRUNC_S, trans_msa_2rf, gen_helper_msa_fclass_df); +TRANS(FTRUNC_U, trans_msa_2rf, gen_helper_msa_ftrunc_s_df); +TRANS(FSQRT, trans_msa_2rf, gen_helper_msa_fsqrt_df); +TRANS(FRSQRT, trans_msa_2rf, gen_helper_msa_frsqrt_df); +TRANS(FRCP, trans_msa_2rf, gen_helper_msa_frcp_df); +TRANS(FRINT, trans_msa_2rf, gen_helper_msa_frint_df); +TRANS(FLOG2, trans_msa_2rf, gen_helper_msa_flog2_df); +TRANS(FEXUPL, trans_msa_2rf, gen_helper_msa_fexupl_df); +TRANS(FEXUPR, trans_msa_2rf, gen_helper_msa_fexupr_df); +TRANS(FFQL, trans_msa_2rf, gen_helper_msa_ffql_df); +TRANS(FFQR, trans_msa_2rf, gen_helper_msa_ffqr_df); +TRANS(FTINT_S, trans_msa_2rf, gen_helper_msa_ftint_s_df); +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))) @@ -2055,9 +2006,6 @@ static void gen_msa_vec(DisasContext *ctx) case OPC_MSA_2R: gen_msa_2r(ctx); break; - case OPC_MSA_2RF: - gen_msa_2rf(ctx); - break; default: MIPS_INVAL("MSA instruction"); gen_reserved_instruction(ctx); |