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-rw-r--r--target/mips/tcg/tx79.decode1
-rw-r--r--target/mips/tcg/tx79_translate.c28
2 files changed, 29 insertions, 0 deletions
diff --git a/target/mips/tcg/tx79.decode b/target/mips/tcg/tx79.decode
index 653910371d..2f65dce243 100644
--- a/target/mips/tcg/tx79.decode
+++ b/target/mips/tcg/tx79.decode
@@ -54,6 +54,7 @@ PEXTUW 011100 ..... ..... ..... 10010 101000 @rs_rt_rd
PCPYLD 011100 ..... ..... ..... 01110 001001 @rs_rt_rd
PAND 011100 ..... ..... ..... 10010 001001 @rs_rt_rd
PXOR 011100 ..... ..... ..... 10011 001001 @rs_rt_rd
+PROT3W 011100 00000 ..... ..... 11111 001001 @rt_rd
# MMI3
diff --git a/target/mips/tcg/tx79_translate.c b/target/mips/tcg/tx79_translate.c
index 90c33d26a9..402790249f 100644
--- a/target/mips/tcg/tx79_translate.c
+++ b/target/mips/tcg/tx79_translate.c
@@ -593,3 +593,31 @@ static bool trans_PCPYUD(DisasContext *s, arg_rtype *a)
return true;
}
+
+/* Parallel Rotate 3 Words Left */
+static bool trans_PROT3W(DisasContext *ctx, arg_rtype *a)
+{
+ TCGv_i64 ax;
+
+ if (a->rd == 0) {
+ /* nop */
+ return true;
+ }
+ if (a->rt == 0) {
+ tcg_gen_movi_i64(cpu_gpr[a->rd], 0);
+ tcg_gen_movi_i64(cpu_gpr_hi[a->rd], 0);
+ return true;
+ }
+
+ ax = tcg_temp_new_i64();
+
+ tcg_gen_mov_i64(ax, cpu_gpr_hi[a->rt]);
+ tcg_gen_deposit_i64(cpu_gpr_hi[a->rd], ax, cpu_gpr[a->rt], 0, 32);
+
+ tcg_gen_deposit_i64(cpu_gpr[a->rd], cpu_gpr[a->rt], ax, 0, 32);
+ tcg_gen_rotri_i64(cpu_gpr[a->rd], cpu_gpr[a->rd], 32);
+
+ tcg_temp_free(ax);
+
+ return true;
+}