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authorPhilippe Mathieu-Daudé <f4bug@amsat.org>2021-10-19 10:09:42 +0200
committerPhilippe Mathieu-Daudé <f4bug@amsat.org>2021-11-02 14:32:32 +0100
commit7acb5c78a75421851b778b463c88c232ce1dc184 (patch)
treeb3ab5e7ff25cf6aea10c73064b604e5ead2e10b2 /target/mips
parentadcff99a6b41c029841aee30582606e6ae196507 (diff)
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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.decode8
-rw-r--r--target/mips/tcg/msa_translate.c98
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);