Signed-off-by: Bastian Koppelmann <kbast...@mail.uni-paderborn.de>
---
v1 -> v2:
- optimize OPC2_32_RRPW_EXTR by using only two shifts, instead of four.
- OPC1_32_RRPW_DEXTR now has r1 == r2 as a special case.
target-tricore/translate.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 70 insertions(+)
diff --git a/target-tricore/translate.c b/target-tricore/translate.c
index 8f9679e..aa70f61 100644
--- a/target-tricore/translate.c
+++ b/target-tricore/translate.c
@@ -4990,6 +4990,57 @@ static void decode_rr2_mul(CPUTriCoreState *env,
DisasContext *ctx)
}
}
+/* RRPW format */
+static void decode_rrpw_extract_insert(CPUTriCoreState *env, DisasContext *ctx)
+{
+ uint32_t op2;
+ int r1, r2, r3;
+ int32_t pos, width;
+
+ op2 = MASK_OP_RRPW_OP2(ctx->opcode);
+ r1 = MASK_OP_RRPW_S1(ctx->opcode);
+ r2 = MASK_OP_RRPW_S2(ctx->opcode);
+ r3 = MASK_OP_RRPW_D(ctx->opcode);
+ pos = MASK_OP_RRPW_POS(ctx->opcode);
+ width = MASK_OP_RRPW_WIDTH(ctx->opcode);
+
+ switch (op2) {
+ case OPC2_32_RRPW_EXTR:
+ if (pos + width <= 31) {
+ /* optimize special cases */
+ if ((pos == 0) && (width == 8)){
+ tcg_gen_ext8s_tl(cpu_gpr_d[r3], cpu_gpr_d[r1]);
+ } else if ((pos == 0) && (width == 16)) {
+ tcg_gen_ext16s_tl(cpu_gpr_d[r3], cpu_gpr_d[r1]);
+ } else {
+ tcg_gen_shli_tl(cpu_gpr_d[r3], cpu_gpr_d[r1], 32 - pos -
width);
+ tcg_gen_sari_tl(cpu_gpr_d[r3], cpu_gpr_d[r3], 32 - width);
+ }
+ }
+ break;
+ case OPC2_32_RRPW_EXTR_U:
+ if (width == 0) {
+ tcg_gen_movi_tl(cpu_gpr_d[r3], 0);
+ } else {
+ tcg_gen_shri_tl(cpu_gpr_d[r3], cpu_gpr_d[r1], pos);
+ tcg_gen_andi_tl(cpu_gpr_d[r3], cpu_gpr_d[r3], ~0u >> (32-width));
+ }
+ break;
+ case OPC2_32_RRPW_IMASK:
+ if (pos + width <= 31) {
+ tcg_gen_movi_tl(cpu_gpr_d[r3+1], ((1u << width) - 1) << pos);
+ tcg_gen_shli_tl(cpu_gpr_d[r3], cpu_gpr_d[r2], pos);
+ }
+ break;
+ case OPC2_32_RRPW_INSERT:
+ if (pos + width <= 31) {
+ tcg_gen_deposit_tl(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ width, pos);
+ }
+ break;
+ }
+}
+
static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
{
int op1;
@@ -5254,6 +5305,25 @@ static void decode_32Bit_opc(CPUTriCoreState *env,
DisasContext *ctx)
case OPCM_32_RR2_MUL:
decode_rr2_mul(env, ctx);
break;
+/* RRPW format */
+ case OPCM_32_RRPW_EXTRACT_INSERT:
+ decode_rrpw_extract_insert(env, ctx);
+ break;
+ case OPC1_32_RRPW_DEXTR:
+ r1 = MASK_OP_RRPW_S1(ctx->opcode);
+ r2 = MASK_OP_RRPW_S2(ctx->opcode);
+ r3 = MASK_OP_RRPW_D(ctx->opcode);
+ const16 = MASK_OP_RRPW_POS(ctx->opcode);
+ if (r1 == r2) {
+ tcg_gen_rotli_tl(cpu_gpr_d[r3], cpu_gpr_d[r1], const16);
+ } else {
+ temp = tcg_temp_new();
+ tcg_gen_shli_tl(cpu_gpr_d[r3], cpu_gpr_d[r2], const16);
+ tcg_gen_shri_tl(temp, cpu_gpr_d[r1], 32 - const16);
+ tcg_gen_or_tl(cpu_gpr_d[r3], cpu_gpr_d[r3], temp);
+ tcg_temp_free(temp);
+ }
+ break;
}
}
--
2.2.2
