target-s390: Convert SHIFT DOUBLE

Signed-off-by: Richard Henderson <rth@twiddle.net>
qemu · Jan 5, 2013 · a79ba33 · a79ba33
1 parent cbe24bf
commit a79ba33
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Showing 2 changed files with 8 additions and 30 deletions.
diff --git a/target-s390x/insn-data.def b/target-s390x/insn-data.def
@@ -335,6 +335,14 @@
     C(0x8800, SRL,     RS_a,  Z,   r1_32u, sh32, new, r1_32, srl, 0)
     C(0xebde, SRLK,    RSY_a, DO,  r3_32u, sh32, new, r1_32, srl, 0)
     C(0xeb0c, SRLG,    RSY_a, Z,   r3_o, sh64, r1, 0, srl, 0)
+/* SHIFT LEFT DOUBLE */
+    D(0x8f00, SLDA,    RS_a,  Z,   r1_D32, sh64, new, r1_D32, sla, 0, 31)
+/* SHIFT LEFT DOUBLE LOGICAL */
+    C(0x8d00, SLDL,    RS_a,  Z,   r1_D32, sh64, new, r1_D32, sll, 0)
+/* SHIFT RIGHT DOUBLE */
+    C(0x8e00, SRDA,    RS_a,  Z,   r1_D32, sh64, new, r1_D32, sra, s64)
+/* SHIFT RIGHT DOUBLE LOGICAL */
+    C(0x8c00, SRDL,    RS_a,  Z,   r1_D32, sh64, new, r1_D32, srl, 0)
 
 /* STORE */
     C(0x5000, ST,      RX_a,  Z,   r1_o, a2, 0, 0, st32, 0)

diff --git a/target-s390x/translate.c b/target-s390x/translate.c
@@ -2288,36 +2288,6 @@ static void disas_s390_insn(CPUS390XState *env, DisasContext *s)
     LOG_DISAS("opc 0x%x\n", opc);
 
     switch (opc) {
-    case 0x8c: /* SRDL   R1,D2(B2)        [RS] */
-    case 0x8d: /* SLDL   R1,D2(B2)        [RS] */
-    case 0x8e: /* SRDA   R1,D2(B2)        [RS] */
-        insn = ld_code4(env, s->pc);
-        decode_rs(s, insn, &r1, &r3, &b2, &d2);
-        tmp = get_address(s, 0, b2, d2); /* shift */
-        tmp2 = tcg_temp_new_i64();
-        tmp32_1 = load_reg32(r1);
-        tmp32_2 = load_reg32(r1 + 1);
-        tcg_gen_concat_i32_i64(tmp2, tmp32_2, tmp32_1); /* operand */
-        switch (opc) {
-        case 0x8c:
-            tcg_gen_shr_i64(tmp2, tmp2, tmp);
-            break;
-        case 0x8d:
-            tcg_gen_shl_i64(tmp2, tmp2, tmp);
-            break;
-        case 0x8e:
-            tcg_gen_sar_i64(tmp2, tmp2, tmp);
-            set_cc_s64(s, tmp2);
-            break;
-        }
-        tcg_gen_shri_i64(tmp, tmp2, 32);
-        tcg_gen_trunc_i64_i32(tmp32_1, tmp);
-        store_reg32(r1, tmp32_1);
-        tcg_gen_trunc_i64_i32(tmp32_2, tmp2);
-        store_reg32(r1 + 1, tmp32_2);
-        tcg_temp_free_i64(tmp);
-        tcg_temp_free_i64(tmp2);
-        break;
     case 0x98: /* LM     R1,R3,D2(B2)     [RS] */
     case 0x90: /* STM    R1,R3,D2(B2)     [RS] */
         insn = ld_code4(env, s->pc);