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From: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
To: qemu-devel@nongnu.org
Cc: "Aleksandar Rikalo" <aleksandar.rikalo@syrmia.com>,
	"Luis Pires" <luis.pires@eldorado.org.br>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Philippe Mathieu-Daudé" <f4bug@amsat.org>
Subject: [PATCH 12/33] target/mips: Convert MSA BIT instruction format to decodetree
Date: Sat, 23 Oct 2021 23:47:42 +0200	[thread overview]
Message-ID: <20211023214803.522078-13-f4bug@amsat.org> (raw)
In-Reply-To: <20211023214803.522078-1-f4bug@amsat.org>

Convert instructions with an immediate bit index and
data format df/m to decodetree.

Since the 'data format' field is a constant value, use
tcg_constant_i32() instead of a TCG temporary.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 target/mips/tcg/msa.decode      | 15 +++++
 target/mips/tcg/msa_translate.c | 98 ++++++++-------------------------
 2 files changed, 39 insertions(+), 74 deletions(-)

diff --git a/target/mips/tcg/msa.decode b/target/mips/tcg/msa.decode
index 5aaa85456da..91d71ff560c 100644
--- a/target/mips/tcg/msa.decode
+++ b/target/mips/tcg/msa.decode
@@ -22,6 +22,7 @@
 @u5                 ...... ... df:2 sa:5  ws:5 wd:5 ......  &msa_ldst
 @s5                 ...... ... df:2 sa:s5 ws:5 wd:5 ......  &msa_ldst
 @ldi                ...... ... df:2 sa:s10     wd:5 ......  &msa_ldst ws=0
+@bit                ...... ... df:7       ws:5 wd:5 ......  &msa_ldst sa=0
 
 LSA                 000000 ..... ..... ..... 000 .. 000101  @lsa
 DLSA                000000 ..... ..... ..... 000 .. 010101  @lsa
@@ -47,5 +48,19 @@ BNZ                 010001 111 .. ..... ................    @bz
 
   LDI               011110 110 .. ..........  ..... 000111  @ldi
 
+  SLLI              011110 000 ....... ..... .....  001001  @bit
+  SRAI              011110 001 ....... ..... .....  001001  @bit
+  SRLI              011110 010 ....... ..... .....  001001  @bit
+  BCLRI             011110 011 ....... ..... .....  001001  @bit
+  BSETI             011110 100 ....... ..... .....  001001  @bit
+  BNEGI             011110 101 ....... ..... .....  001001  @bit
+  BINSLI            011110 110 ....... ..... .....  001001  @bit
+  BINSRI            011110 111 ....... ..... .....  001001  @bit
+
+  SAT_S             011110 000 ....... ..... .....  001010  @bit
+  SAT_U             011110 001 ....... ..... .....  001010  @bit
+  SRARI             011110 010 ....... ..... .....  001010  @bit
+  SRLRI             011110 011 ....... ..... .....  001010  @bit
+
   MSA               011110 --------------------------
 }
diff --git a/target/mips/tcg/msa_translate.c b/target/mips/tcg/msa_translate.c
index 962aef601cb..10bbe25172a 100644
--- a/target/mips/tcg/msa_translate.c
+++ b/target/mips/tcg/msa_translate.c
@@ -27,8 +27,6 @@ enum {
     OPC_MSA_I8_00   = 0x00 | OPC_MSA,
     OPC_MSA_I8_01   = 0x01 | OPC_MSA,
     OPC_MSA_I8_02   = 0x02 | OPC_MSA,
-    OPC_MSA_BIT_09  = 0x09 | OPC_MSA,
-    OPC_MSA_BIT_0A  = 0x0A | OPC_MSA,
     OPC_MSA_3R_0D   = 0x0D | OPC_MSA,
     OPC_MSA_3R_0E   = 0x0E | OPC_MSA,
     OPC_MSA_3R_0F   = 0x0F | OPC_MSA,
@@ -222,20 +220,6 @@ enum {
     OPC_MSUBR_Q_df  = (0xE << 22) | OPC_MSA_3RF_1C,
     OPC_FSULE_df    = (0xF << 22) | OPC_MSA_3RF_1A,
     OPC_FMAX_A_df   = (0xF << 22) | OPC_MSA_3RF_1B,
-
-    /* BIT instruction df(bits 22..16) = _B _H _W _D */
-    OPC_SLLI_df     = (0x0 << 23) | OPC_MSA_BIT_09,
-    OPC_SAT_S_df    = (0x0 << 23) | OPC_MSA_BIT_0A,
-    OPC_SRAI_df     = (0x1 << 23) | OPC_MSA_BIT_09,
-    OPC_SAT_U_df    = (0x1 << 23) | OPC_MSA_BIT_0A,
-    OPC_SRLI_df     = (0x2 << 23) | OPC_MSA_BIT_09,
-    OPC_SRARI_df    = (0x2 << 23) | OPC_MSA_BIT_0A,
-    OPC_BCLRI_df    = (0x3 << 23) | OPC_MSA_BIT_09,
-    OPC_SRLRI_df    = (0x3 << 23) | OPC_MSA_BIT_0A,
-    OPC_BSETI_df    = (0x4 << 23) | OPC_MSA_BIT_09,
-    OPC_BNEGI_df    = (0x5 << 23) | OPC_MSA_BIT_09,
-    OPC_BINSLI_df   = (0x6 << 23) | OPC_MSA_BIT_09,
-    OPC_BINSRI_df   = (0x7 << 23) | OPC_MSA_BIT_09,
 };
 
 static const char msaregnames[][6] = {
@@ -547,78 +531,48 @@ static bool trans_LDI(DisasContext *ctx, arg_msa_ldst *a)
     return true;
 }
 
-static void gen_msa_bit(DisasContext *ctx)
+static bool trans_msa_bit(DisasContext *ctx, arg_msa_ldst *a,
+                          void (*gen_msa_bit)(TCGv_ptr, TCGv_i32, TCGv_i32,
+                                              TCGv_i32, TCGv_i32))
 {
-#define MASK_MSA_BIT(op)    (MASK_MSA_MINOR(op) | (op & (0x7 << 23)))
-    uint8_t dfm = (ctx->opcode >> 16) & 0x7f;
-    uint8_t ws = (ctx->opcode >> 11) & 0x1f;
-    uint8_t wd = (ctx->opcode >> 6) & 0x1f;
-
     TCGv_i32 tdf;
     TCGv_i32 tm;
     TCGv_i32 twd;
     TCGv_i32 tws;
     uint32_t df, m;
 
-    if (!df_extract(df_bit, dfm, &df, &m)) {
+    if (!df_extract(df_bit, a->df, &df, &m)) {
         gen_reserved_instruction(ctx);
-        return;
+        return true;
     }
 
-    tdf = tcg_const_i32(df);
+    tdf = tcg_constant_i32(df);
     tm  = tcg_const_i32(m);
-    twd = tcg_const_i32(wd);
-    tws = tcg_const_i32(ws);
+    twd = tcg_const_i32(a->wd);
+    tws = tcg_const_i32(a->ws);
 
-    switch (MASK_MSA_BIT(ctx->opcode)) {
-    case OPC_SLLI_df:
-        gen_helper_msa_slli_df(cpu_env, tdf, twd, tws, tm);
-        break;
-    case OPC_SRAI_df:
-        gen_helper_msa_srai_df(cpu_env, tdf, twd, tws, tm);
-        break;
-    case OPC_SRLI_df:
-        gen_helper_msa_srli_df(cpu_env, tdf, twd, tws, tm);
-        break;
-    case OPC_BCLRI_df:
-        gen_helper_msa_bclri_df(cpu_env, tdf, twd, tws, tm);
-        break;
-    case OPC_BSETI_df:
-        gen_helper_msa_bseti_df(cpu_env, tdf, twd, tws, tm);
-        break;
-    case OPC_BNEGI_df:
-        gen_helper_msa_bnegi_df(cpu_env, tdf, twd, tws, tm);
-        break;
-    case OPC_BINSLI_df:
-        gen_helper_msa_binsli_df(cpu_env, tdf, twd, tws, tm);
-        break;
-    case OPC_BINSRI_df:
-        gen_helper_msa_binsri_df(cpu_env, tdf, twd, tws, tm);
-        break;
-    case OPC_SAT_S_df:
-        gen_helper_msa_sat_s_df(cpu_env, tdf, twd, tws, tm);
-        break;
-    case OPC_SAT_U_df:
-        gen_helper_msa_sat_u_df(cpu_env, tdf, twd, tws, tm);
-        break;
-    case OPC_SRARI_df:
-        gen_helper_msa_srari_df(cpu_env, tdf, twd, tws, tm);
-        break;
-    case OPC_SRLRI_df:
-        gen_helper_msa_srlri_df(cpu_env, tdf, twd, tws, tm);
-        break;
-    default:
-        MIPS_INVAL("MSA instruction");
-        gen_reserved_instruction(ctx);
-        break;
-    }
+    gen_msa_bit(cpu_env, tdf, twd, tws, tm);
 
-    tcg_temp_free_i32(tdf);
     tcg_temp_free_i32(tm);
     tcg_temp_free_i32(twd);
     tcg_temp_free_i32(tws);
+
+    return true;
 }
 
+TRANS_MSA(SLLI,     trans_msa_bit, gen_helper_msa_slli_df);
+TRANS_MSA(SRAI,     trans_msa_bit, gen_helper_msa_srai_df);
+TRANS_MSA(SRLI,     trans_msa_bit, gen_helper_msa_srli_df);
+TRANS_MSA(BCLRI,    trans_msa_bit, gen_helper_msa_bclri_df);
+TRANS_MSA(BSETI,    trans_msa_bit, gen_helper_msa_bseti_df);
+TRANS_MSA(BNEGI,    trans_msa_bit, gen_helper_msa_bnegi_df);
+TRANS_MSA(BINSLI,   trans_msa_bit, gen_helper_msa_binsli_df);
+TRANS_MSA(BINSRI,   trans_msa_bit, gen_helper_msa_binsri_df);
+TRANS_MSA(SAT_S,    trans_msa_bit, gen_helper_msa_sat_u_df);
+TRANS_MSA(SAT_U,    trans_msa_bit, gen_helper_msa_sat_u_df);
+TRANS_MSA(SRARI,    trans_msa_bit, gen_helper_msa_srari_df);
+TRANS_MSA(SRLRI,    trans_msa_bit, gen_helper_msa_srlri_df);
+
 static void gen_msa_3r(DisasContext *ctx)
 {
 #define MASK_MSA_3R(op)    (MASK_MSA_MINOR(op) | (op & (0x7 << 23)))
@@ -2151,10 +2105,6 @@ static bool trans_MSA(DisasContext *ctx, arg_MSA *a)
     case OPC_MSA_I8_02:
         gen_msa_i8(ctx);
         break;
-    case OPC_MSA_BIT_09:
-    case OPC_MSA_BIT_0A:
-        gen_msa_bit(ctx);
-        break;
     case OPC_MSA_3R_0D:
     case OPC_MSA_3R_0E:
     case OPC_MSA_3R_0F:
-- 
2.31.1



  parent reply	other threads:[~2021-10-23 21:57 UTC|newest]

Thread overview: 78+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-23 21:47 [PATCH 00/33] target/mips: Fully convert MSA opcodes " Philippe Mathieu-Daudé
2021-10-23 21:47 ` [PATCH 01/33] tests/tcg: Fix some targets default cross compiler path Philippe Mathieu-Daudé
2021-10-23 23:24   ` Richard Henderson
2021-10-23 21:47 ` [PATCH 02/33] target/mips: Fix MSA MADDV.B opcode Philippe Mathieu-Daudé
2021-10-23 21:47 ` [PATCH 03/33] target/mips: Fix MSA MSUBV.B opcode Philippe Mathieu-Daudé
2021-10-23 21:47 ` [PATCH 04/33] tests/tcg/mips: Run MSA opcodes tests on user-mode emulation Philippe Mathieu-Daudé
2021-10-27 10:38   ` Philippe Mathieu-Daudé
2021-10-23 21:47 ` [PATCH 05/33] target/mips: Have check_msa_access() return a boolean Philippe Mathieu-Daudé
2021-10-24  1:02   ` Richard Henderson
2021-10-24 12:48     ` Philippe Mathieu-Daudé
2021-10-23 21:47 ` [PATCH 06/33] target/mips: Use enum definitions from CPUMIPSMSADataFormat enum Philippe Mathieu-Daudé
2021-10-24  1:03   ` Richard Henderson
2021-10-23 21:47 ` [PATCH 07/33] target/mips: Rename sa16 -> sa, bz_df -> bz -> bz_v Philippe Mathieu-Daudé
2021-10-24  1:05   ` Richard Henderson
2021-10-23 21:47 ` [PATCH 08/33] target/mips: Convert MSA LDI opcode to decodetree Philippe Mathieu-Daudé
2021-10-24  1:53   ` Richard Henderson
2021-10-23 21:47 ` [PATCH 09/33] target/mips: Introduce generic TRANS_CHECK() for decodetree helpers Philippe Mathieu-Daudé
2021-10-24  1:58   ` Richard Henderson
2021-10-23 21:47 ` [PATCH 10/33] target/mips: Extract df_extract() helper Philippe Mathieu-Daudé
2021-10-24  2:26   ` Richard Henderson
2021-10-23 21:47 ` [PATCH 11/33] target/mips: Convert MSA I5 instruction format to decodetree Philippe Mathieu-Daudé
2021-10-24  2:10   ` Richard Henderson
2021-10-23 21:47 ` Philippe Mathieu-Daudé [this message]
2021-10-24  2:45   ` [PATCH 12/33] target/mips: Convert MSA BIT " Richard Henderson
2021-10-23 21:47 ` [PATCH 13/33] target/mips: Convert MSA SHF opcode " Philippe Mathieu-Daudé
2021-10-24  3:40   ` Richard Henderson
2021-10-23 21:47 ` [PATCH 14/33] target/mips: Convert MSA I8 instruction format " Philippe Mathieu-Daudé
2021-10-24  3:45   ` Richard Henderson
2021-10-23 21:47 ` [PATCH 15/33] target/mips: Convert MSA load/store " Philippe Mathieu-Daudé
2021-10-24  4:53   ` Richard Henderson
2021-10-24 11:18     ` Philippe Mathieu-Daudé
2021-10-23 21:47 ` [PATCH 16/33] target/mips: Convert MSA 2RF " Philippe Mathieu-Daudé
2021-10-24  5:01   ` Richard Henderson
2021-10-23 21:47 ` [PATCH 17/33] target/mips: Convert MSA FILL opcode " Philippe Mathieu-Daudé
2021-10-24  5:04   ` Richard Henderson
2021-10-24 16:44     ` Philippe Mathieu-Daudé
2021-10-24 17:26       ` Richard Henderson
2021-10-25 16:43         ` Philippe Mathieu-Daudé
2021-10-23 21:47 ` [PATCH 18/33] target/mips: Convert MSA 2R instruction format " Philippe Mathieu-Daudé
2021-10-24  5:14   ` Richard Henderson
2021-10-23 21:47 ` [PATCH 19/33] target/mips: Convert MSA VEC " Philippe Mathieu-Daudé
2021-10-24  5:17   ` Richard Henderson
2021-10-23 21:47 ` [PATCH 20/33] target/mips: Convert MSA 3RF instruction format to decodetree (DF_HALF) Philippe Mathieu-Daudé
2021-10-24 17:37   ` Richard Henderson
2021-10-24 17:42     ` Richard Henderson
2021-10-23 21:47 ` [PATCH 21/33] target/mips: Convert MSA 3RF instruction format to decodetree (DF_WORD) Philippe Mathieu-Daudé
2021-10-24 17:42   ` Richard Henderson
2021-10-23 21:47 ` [PATCH 22/33] target/mips: Convert MSA 3R instruction format to decodetree (part 1/4) Philippe Mathieu-Daudé
2021-10-24 17:51   ` Richard Henderson
2021-10-24 17:52   ` Richard Henderson
2021-10-24 18:57     ` Philippe Mathieu-Daudé
2021-10-24 20:27       ` Richard Henderson
2021-10-23 21:47 ` [PATCH 23/33] target/mips: Convert MSA 3R instruction format to decodetree (part 2/4) Philippe Mathieu-Daudé
2021-10-24 17:55   ` Richard Henderson
2021-10-23 21:47 ` [PATCH 24/33] target/mips: Convert MSA 3R instruction format to decodetree (part 3/4) Philippe Mathieu-Daudé
2021-10-24 18:09   ` Richard Henderson
2021-10-23 21:47 ` [PATCH 25/33] target/mips: Convert MSA 3R instruction format to decodetree (part 4/4) Philippe Mathieu-Daudé
2021-10-24 18:12   ` Richard Henderson
2021-10-23 21:47 ` [PATCH 26/33] target/mips: Convert MSA ELM instruction format to decodetree Philippe Mathieu-Daudé
2021-10-24 20:52   ` Richard Henderson
2021-10-27 17:27     ` Philippe Mathieu-Daudé
2021-10-23 21:47 ` [PATCH 27/33] target/mips: Convert MSA COPY_U opcode " Philippe Mathieu-Daudé
2021-10-24 21:01   ` Richard Henderson
2021-10-27 17:40     ` Philippe Mathieu-Daudé
2021-10-23 21:47 ` [PATCH 28/33] target/mips: Convert MSA COPY_S and INSERT opcodes " Philippe Mathieu-Daudé
2021-10-24 21:02   ` Richard Henderson
2021-10-23 21:47 ` [PATCH 29/33] target/mips: Convert MSA MOVE.V opcode " Philippe Mathieu-Daudé
2021-10-24 21:09   ` Richard Henderson
2021-10-23 21:48 ` [PATCH 30/33] target/mips: Convert CFCMSA and CTCMSA opcodes " Philippe Mathieu-Daudé
2021-10-24 21:15   ` Richard Henderson
2021-10-23 21:48 ` [PATCH 31/33] target/mips: Remove generic MSA opcode Philippe Mathieu-Daudé
2021-10-24 21:16   ` Richard Henderson
2021-10-23 21:48 ` [PATCH 32/33] target/mips: Remove one MSA unnecessary decodetree overlap group Philippe Mathieu-Daudé
2021-10-24 21:17   ` Richard Henderson
2021-10-23 21:48 ` [PATCH 33/33] target/mips: Adjust style in msa_translate_init() Philippe Mathieu-Daudé
2021-10-24 21:18   ` Richard Henderson
2021-10-24 18:26 ` [PATCH 00/33] target/mips: Fully convert MSA opcodes to decodetree Jiaxun Yang
2021-10-24 19:01   ` Philippe Mathieu-Daudé

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