[Qemu-devel] [PATCH 07/15] target-tricore: Add instructions of SRR opcode format

[Bastian Koppelmann]

Add instructions of SRR opcode format.
Add micro-op generator function for ssov.

Signed-off-by: Bastian Koppelmann <address@hidden>
---
 target-tricore/translate.c | 140 ++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 139 insertions(+), 1 deletion(-)

diff --git a/target-tricore/translate.c b/target-tricore/translate.c
index ad595b2..108619c 100644
--- a/target-tricore/translate.c
+++ b/target-tricore/translate.c
@@ -203,14 +203,34 @@ static void gen_shaci(TCGv ret, TCGv r1, int32_t con)
     tcg_temp_free(temp);
 }
 
+static inline void gen_ssov(TCGv ret, TCGv arg, int32_t cons)
+{
+    int l1 = gen_new_label();
+    TCGv temp = tcg_temp_local_new();
+    int32_t max_pos = (0x1u << (cons - 1)) - 1;
+    int32_t max_neg = -(0x1u << (cons - 1));
+
+    tcg_gen_movi_tl(temp, max_pos);
+    tcg_gen_brcondi_tl(TCG_COND_GT, arg, max_pos, l1);
+    tcg_gen_movi_tl(temp, max_neg);
+    tcg_gen_brcondi_tl(TCG_COND_LT, arg, max_neg, l1);
+    tcg_gen_mov_tl(temp, arg);
+    gen_set_label(l1);
+    tcg_gen_mov_tl(ret, temp);
+
+    tcg_temp_free(temp);
+}
+
 /*
  * Functions for decoding instructions
  */
 static void decode_16Bit_opc(CPUTRICOREState *env, DisasContext *ctx)
 {
     target_ulong op1;
-    int r1;
+    int r1, r2;
     uint16_t const16;
+    TCGv temp;
+
     op1 = MASK_OP_MAJOR(ctx->opcode);
 
     switch (op1) {
@@ -294,6 +314,124 @@ static void decode_16Bit_opc(CPUTRICOREState *env, 
DisasContext *ctx)
         /* FIXME: const too long */
         gen_shaci(cpu_gpr_d[r1], cpu_gpr_d[r1], const16 & 0x1f);
         break;
+/* SRR-Format */
+    case OPC1_16_SRR_ADD:
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+        tcg_gen_add_tl(cpu_gpr_d[r1], cpu_gpr_d[r1], cpu_gpr_d[r2]);
+        break;
+    case OPC1_16_SRR_ADD_A15:
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+        tcg_gen_add_tl(cpu_gpr_d[r1], cpu_gpr_d[15], cpu_gpr_d[r2]);
+        break;
+    case OPC1_16_SRR_ADD_15A:
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+        tcg_gen_add_tl(cpu_gpr_d[15], cpu_gpr_d[r1], cpu_gpr_d[r2]);
+        break;
+    case OPC1_16_SRR_ADD_A:
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+        tcg_gen_add_tl(cpu_gpr_a[r1], cpu_gpr_a[r1], cpu_gpr_a[r2]);
+        break;
+    case OPC1_16_SRR_ADDS:
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+
+        temp = tcg_temp_local_new();
+        tcg_gen_add_tl(temp, cpu_gpr_d[r1], cpu_gpr_d[r2]);
+        gen_ssov(cpu_gpr_d[r1], temp, 32);
+        tcg_temp_free(temp);
+        break;
+    case OPC1_16_SRR_AND:
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+        tcg_gen_and_tl(cpu_gpr_d[r1], cpu_gpr_d[r1], cpu_gpr_d[r2]);
+        break;
+    case OPC1_16_SRR_CMOV:
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+        gen_cond_mov(TCG_COND_EQ, cpu_gpr_d[r1], cpu_gpr_d[r2],
+                     cpu_gpr_d[r1], cpu_gpr_d[15]);
+        break;
+    case OPC1_16_SRR_CMOVN:
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+        gen_cond_mov(TCG_COND_NE, cpu_gpr_d[r1], cpu_gpr_d[r2],
+                     cpu_gpr_d[r1], cpu_gpr_d[15]);
+        break;
+    case OPC1_16_SRR_EQ:
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+
+        tcg_gen_setcond_tl(TCG_COND_EQ, cpu_gpr_d[15], cpu_gpr_d[r1],
+                           cpu_gpr_d[r2]);
+        break;
+    case OPC1_16_SRR_LT:
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        tcg_gen_setcond_tl(TCG_COND_LT, cpu_gpr_d[15], cpu_gpr_d[r1],
+                           cpu_gpr_d[r2]);
+        break;
+    case OPC1_16_SRR_MOV:
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+        tcg_gen_mov_tl(cpu_gpr_d[r1], cpu_gpr_d[r2]);
+        break;
+    case OPC1_16_SRR_MOV_A:
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+        tcg_gen_mov_tl(cpu_gpr_a[r1], cpu_gpr_d[r2]);
+        break;
+    case OPC1_16_SRR_MOV_AA:
+        r1 = MASK_OP_SRR_S2(ctx->opcode);
+        r2 = MASK_OP_SRR_S1D(ctx->opcode);
+        tcg_gen_mov_tl(cpu_gpr_a[r2], cpu_gpr_a[r1]);
+        break;
+    case OPC1_16_SRR_MOV_D:
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+        tcg_gen_mov_tl(cpu_gpr_d[r1], cpu_gpr_a[r2]);
+        break;
+    case OPC1_16_SRR_MUL:
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        tcg_gen_mul_tl(cpu_gpr_d[r1], cpu_gpr_d[r1], cpu_gpr_d[r2]);
+        break;
+    case OPC1_16_SRR_OR:
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+        tcg_gen_or_tl(cpu_gpr_d[r1], cpu_gpr_d[r1], cpu_gpr_d[r2]);
+        break;
+    case OPC1_16_SRR_SUB:
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+        tcg_gen_sub_tl(cpu_gpr_d[r1], cpu_gpr_d[r1], cpu_gpr_d[r2]);
+        break;
+    case OPC1_16_SRR_SUB_A15B:
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        tcg_gen_sub_tl(cpu_gpr_d[r1], cpu_gpr_d[15], cpu_gpr_d[r2]);
+        break;
+    case OPC1_16_SRR_SUB_15AB:
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+        tcg_gen_sub_tl(cpu_gpr_d[15], cpu_gpr_d[r1], cpu_gpr_d[r2]);
+        break;
+    case OPC1_16_SRR_SUBS:
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        temp = tcg_temp_local_new();
+        tcg_gen_sub_tl(temp, cpu_gpr_d[r1], cpu_gpr_d[r2]);
+        gen_ssov(cpu_gpr_d[r1], temp, 32);
+        tcg_temp_free(temp);
+        break;
+    case OPC1_16_SRR_XOR:
+        r1 = MASK_OP_SRR_S1D(ctx->opcode);
+        r2 = MASK_OP_SRR_S2(ctx->opcode);
+        tcg_gen_xor_tl(cpu_gpr_d[r1], cpu_gpr_d[r1], cpu_gpr_d[r2]);
+        break;
     }
 }
 
-- 
2.0.1