target/tricore: Add LHA insn

reported in https://gitlab.com/qemu-project/qemu/-/issues/1667 Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Message-Id: <20230614100039.1337971-4-kbastian@mail.uni-paderborn.de>
qemu · Jun 21, 2023 · 73f874d · 73f874d
1 parent fd6f446
commit 73f874d
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Showing 2 changed files with 20 additions and 3 deletions.
diff --git a/target/tricore/translate.c b/target/tricore/translate.c
@@ -7931,7 +7931,7 @@ static void decode_sys_interrupts(DisasContext *ctx)
 
 static void decode_32Bit_opc(DisasContext *ctx)
 {
-    int op1;
+    int op1, op2;
     int32_t r1, r2, r3;
     int32_t address, const16;
     int8_t b, const4;
@@ -7982,9 +7982,19 @@ static void decode_32Bit_opc(DisasContext *ctx)
         tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], temp, ctx->mem_idx, MO_LEUW);
         tcg_gen_shli_tl(cpu_gpr_d[r1], cpu_gpr_d[r1], 16);
         break;
-    case OPC1_32_ABS_LEA:
+    case OPCM_32_ABS_LEA_LHA:
         address = MASK_OP_ABS_OFF18(ctx->opcode);
         r1 = MASK_OP_ABS_S1D(ctx->opcode);
+
+        if (has_feature(ctx, TRICORE_FEATURE_162)) {
+            op2 = MASK_OP_ABS_OP2(ctx->opcode);
+            if (op2 == OPC2_32_ABS_LHA) {
+                tcg_gen_movi_tl(cpu_gpr_a[r1], address << 14);
+                break;
+            }
+            /* otherwise translate regular LEA */
+        }
+
         tcg_gen_movi_tl(cpu_gpr_a[r1], EA_ABS_FORMAT(address));
         break;
 /* ABSB-format */

diff --git a/target/tricore/tricore-opcodes.h b/target/tricore/tricore-opcodes.h
@@ -430,7 +430,7 @@ enum {
     OPCM_32_ABS_STOREB_H                             = 0x25,
     OPC1_32_ABS_STOREQ                               = 0x65,
     OPC1_32_ABS_LD_Q                                 = 0x45,
-    OPC1_32_ABS_LEA                                  = 0xc5,
+    OPCM_32_ABS_LEA_LHA                              = 0xc5,
 /* ABSB Format */
     OPC1_32_ABSB_ST_T                                = 0xd5,
 /* B Format */
@@ -592,6 +592,13 @@ enum {
     OPC2_32_ABS_ST_B                             = 0x00,
     OPC2_32_ABS_ST_H                             = 0x02,
 };
+
+/* OPCM_32_ABS_LEA_LHA */
+enum {
+    OPC2_32_ABS_LEA                              = 0x00,
+    OPC2_32_ABS_LHA                              = 0x01,
+};
+
 /*
  * Bit Format
  */