Convert instructions with an immediate element index
and data format df/n to decodetree.
Since the 'data format' and 'n' fields are constant values,
use tcg_constant_i32() instead of a TCG temporaries.
Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org>
---
target/mips/tcg/msa.decode | 6 +++++
target/mips/tcg/msa_translate.c | 46 +++++++++++++++++++++++----------
2 files changed, 39 insertions(+), 13 deletions(-)
diff --git a/target/mips/tcg/msa.decode b/target/mips/tcg/msa.decode
index 3d0d9a52675..0f1674cd318 100644
--- a/target/mips/tcg/msa.decode
+++ b/target/mips/tcg/msa.decode
@@ -15,12 +15,14 @@
&msa_r df wd ws wt
&msa_bz df wt sa
+&msa_elm df wd ws
&msa_ldst df wd ws sa
@lsa ...... rs:5 rt:5 rd:5 ... sa:2 ...... &r
@ldst ...... sa:s10 ws:5 wd:5 .... df:2 &msa_ldst
@bz_v ...... ... .. wt:5 sa:16 &msa_bz df=3
@bz ...... ... df:2 wt:5 sa:16 &msa_bz
+@elm_df ...... .... df:6 ws:5 wd:5 ...... &msa_elm
@vec ...... ..... wt:5 ws:5 wd:5 ...... &msa_r df=0
@2r ...... ........ df:2 ws:5 wd:5 ...... &msa_r wt=0
@2rf ...... ......... df:1 ws:5 wd:5 ...... &msa_r wt=0
@@ -152,6 +154,10 @@ BNZ 010001 111 .. ..... ................
@bz
HSUB_S 011110 110.. ..... ..... ..... 010101 @3r
HSUB_U 011110 111.. ..... ..... ..... 010101 @3r
+ SLDI 011110 0000 ...... ..... ..... 011001 @elm_df
+ SPLATI 011110 0001 ...... ..... ..... 011001 @elm_df
+ INSVE 011110 0101 ...... ..... ..... 011001 @elm_df
+
FCAF 011110 0000 . ..... ..... ..... 011010 @3rf
FCUN 011110 0001 . ..... ..... ..... 011010 @3rf
FCEQ 011110 0010 . ..... ..... ..... 011010 @3rf
diff --git a/target/mips/tcg/msa_translate.c b/target/mips/tcg/msa_translate.c
index 7813c126069..95dcd4b5b06 100644
--- a/target/mips/tcg/msa_translate.c
+++ b/target/mips/tcg/msa_translate.c
@@ -29,15 +29,12 @@ enum {
enum {
/* ELM instructions df(bits 21..16) = _b, _h, _w, _d */
- OPC_SLDI_df = (0x0 << 22) | (0x00 << 16) | OPC_MSA_ELM,
OPC_CTCMSA = (0x0 << 22) | (0x3E << 16) | OPC_MSA_ELM,
- OPC_SPLATI_df = (0x1 << 22) | (0x00 << 16) | OPC_MSA_ELM,
OPC_CFCMSA = (0x1 << 22) | (0x3E << 16) | OPC_MSA_ELM,
OPC_COPY_S_df = (0x2 << 22) | (0x00 << 16) | OPC_MSA_ELM,
OPC_MOVE_V = (0x2 << 22) | (0x3E << 16) | OPC_MSA_ELM,
OPC_COPY_U_df = (0x3 << 22) | (0x00 << 16) | OPC_MSA_ELM,
OPC_INSERT_df = (0x4 << 22) | (0x00 << 16) | OPC_MSA_ELM,
- OPC_INSVE_df = (0x5 << 22) | (0x00 << 16) | OPC_MSA_ELM,
};
static const char msaregnames[][6] = {
@@ -561,6 +558,39 @@ static void gen_msa_elm_3e(DisasContext *ctx)
tcg_temp_free_i32(tsr);
}
+static bool trans_msa_elm_df(DisasContext *ctx, arg_msa_elm *a,
+ void (*gen_msa_elm_df)(TCGv_ptr, TCGv_i32,
+ TCGv_i32, TCGv_i32,
+ TCGv_i32))
+{
+ TCGv_i32 twd;
+ TCGv_i32 tws;
+ TCGv_i32 tdf;
+ TCGv_i32 tn;
+ uint32_t df, n;
+
+ if (!df_extract(df_elm, a->df, &df, &n)) {
+ gen_reserved_instruction(ctx);
+ return true;
+ }
+
+ twd = tcg_const_i32(a->wd);
+ tws = tcg_const_i32(a->ws);
+ tdf = tcg_constant_i32(df);
+ tn = tcg_constant_i32(n);
+
+ gen_msa_elm_df(cpu_env, tdf, twd, tws, tn);
+
+ tcg_temp_free_i32(tws);
+ tcg_temp_free_i32(twd);
+
+ return true;
+}
+
+TRANS_MSA(SLDI, trans_msa_elm_df, gen_helper_msa_sldi_df);
+TRANS_MSA(SPLATI, trans_msa_elm_df, gen_helper_msa_splati_df);
+TRANS_MSA(INSVE, trans_msa_elm_df, gen_helper_msa_insve_df);
+
static void gen_msa_elm_df(DisasContext *ctx, uint32_t df, uint32_t n)
{
#define MASK_MSA_ELM(op) (MASK_MSA_MINOR(op) | (op & (0xf << 22)))
@@ -570,18 +600,8 @@ static void gen_msa_elm_df(DisasContext *ctx, uint32_t df,
uint32_t n)
TCGv_i32 tws = tcg_const_i32(ws);
TCGv_i32 twd = tcg_const_i32(wd);
TCGv_i32 tn = tcg_const_i32(n);
- TCGv_i32 tdf = tcg_constant_i32(df);
switch (MASK_MSA_ELM(ctx->opcode)) {
- case OPC_SLDI_df:
- gen_helper_msa_sldi_df(cpu_env, tdf, twd, tws, tn);
- break;
- case OPC_SPLATI_df:
- gen_helper_msa_splati_df(cpu_env, tdf, twd, tws, tn);
- break;
- case OPC_INSVE_df:
- gen_helper_msa_insve_df(cpu_env, tdf, twd, tws, tn);
- break;
case OPC_COPY_S_df:
case OPC_COPY_U_df:
case OPC_INSERT_df:
--
2.31.1
