Introduce the PPACW opcode (Parallel Pack to Word).
Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org>
---
target/mips/tx79.decode | 1 +
target/mips/tx79_translate.c | 30 ++++++++++++++++++++++++++++++
2 files changed, 31 insertions(+)
diff --git a/target/mips/tx79.decode b/target/mips/tx79.decode
index 63fbe9694bb..653910371d2 100644
--- a/target/mips/tx79.decode
+++ b/target/mips/tx79.decode
@@ -38,6 +38,7 @@ PCGTH 011100 ..... ..... ..... 00110 001000
@rs_rt_rd
PSUBB 011100 ..... ..... ..... 01001 001000 @rs_rt_rd
PCGTB 011100 ..... ..... ..... 01010 001000 @rs_rt_rd
PEXTLW 011100 ..... ..... ..... 10010 001000 @rs_rt_rd
+PPACW 011100 ..... ..... ..... 10011 001000 @rs_rt_rd
PEXTLH 011100 ..... ..... ..... 10110 001000 @rs_rt_rd
PEXTLB 011100 ..... ..... ..... 11010 001000 @rs_rt_rd
diff --git a/target/mips/tx79_translate.c b/target/mips/tx79_translate.c
index 04249b0c20a..ac75d95b82b 100644
--- a/target/mips/tx79_translate.c
+++ b/target/mips/tx79_translate.c
@@ -416,6 +416,36 @@ static bool trans_PCEQW(DisasContext *ctx, arg_rtype *a)
* PEXTLW rd, rs, rt Parallel Extend Lower from Word
*/
+/* Parallel Pack to Word */
+static bool trans_PPACW(DisasContext *ctx, arg_rtype *a)
+{
+ TCGv_i64 a0, b0, t0;
+
+ if (a->rd == 0) {
+ /* nop */
+ return true;
+ }
+
+ a0 = tcg_temp_new_i64();
+ b0 = tcg_temp_new_i64();
+ t0 = tcg_temp_new_i64();
+
+ gen_load_gpr(a0, a->rs);
+ gen_load_gpr(b0, a->rt);
+
+ gen_load_gpr_hi(t0, a->rt); /* b1 */
+ tcg_gen_deposit_i64(cpu_gpr[a->rd], b0, t0, 32, 32);
+
+ gen_load_gpr_hi(t0, a->rs); /* a1 */
+ tcg_gen_deposit_i64(cpu_gpr_hi[a->rd], a0, t0, 32, 32);
+
+ tcg_temp_free(t0);
+ tcg_temp_free(b0);
+ tcg_temp_free(a0);
+
+ return true;
+}
+
static bool trans_PEXTLx(DisasContext *ctx, arg_rtype *a, unsigned wlen)
{
TCGv_i64 ax, bx;
--
2.26.2
