[Qemu-devel] [PATCH 017/126] target-s390: Convert LOAD, LOAD LOGICAL

[Richard Henderson <rth@twiddle.net>]

Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 target-s390x/insn-data.def |  20 +++++++++
 target-s390x/translate.c   | 100 ++++++++++++++++++---------------------------
 2 files changed, 60 insertions(+), 60 deletions(-)

diff --git a/target-s390x/insn-data.def b/target-s390x/insn-data.def
index 45c3913..2590f83 100644
--- a/target-s390x/insn-data.def
+++ b/target-s390x/insn-data.def
@@ -107,6 +107,26 @@
     C(0xb9e7, XGRK,    RRF_a, DO,  r2, r3, r1, 0, xor, nz64)
     C(0xe382, XG,      RXY_a, Z,   r1, m2_64, r1, 0, xor, nz64)
 
+/* LOAD */
+    C(0x1800, LR,      RR_a,  Z,   0, r2_o, 0, cond_r1r2_32, mov2, 0)
+    C(0x5800, L,       RX_a,  Z,   0, a2, new, r1_32, ld32s, 0)
+    C(0xe358, LY,      RXY_a, Z,   0, a2, new, r1_32, ld32s, 0)
+    C(0xb904, LGR,     RRE,   Z,   0, r2_o, 0, r1, mov2, 0)
+    C(0xb914, LGFR,    RRE,   Z,   0, r2_32s, 0, r1, mov2, 0)
+    C(0xe304, LG,      RXY_a, Z,   0, a2, r1, 0, ld64, 0)
+    C(0xe314, LGF,     RXY_a, Z,   0, a2, r1, 0, ld32s, 0)
+/* LOAD IMMEDIATE */
+    C(0xc001, LGFI,    RIL_a, EI,  0, i2, 0, r1, mov2, 0)
+/* LOAD RELATIVE LONG */
+    C(0xc40d, LRL,     RIL_b, GIE, 0, ri2, new, r1_32, ld32s, 0)
+    C(0xc408, LGRL,    RIL_b, GIE, 0, ri2, r1, 0, ld64, 0)
+    C(0xc40c, LGFRL,   RIL_b, GIE, 0, ri2, r1, 0, ld32s, 0)
+/* LOAD LOGICAL */
+    C(0xb916, LLGFR,   RRE,   Z,   0, r2_32u, 0, r1, mov2, 0)
+    C(0xe316, LLGF,    RXY_a, Z,   0, a2, r1, 0, ld32u, 0)
+/* LOAD LOGICAL RELATIVE LONG */
+    C(0xc40e, LLGFRL,  RIL_b, GIE, 0, ri2, r1, 0, ld32u, 0)
+
 /* MULTIPLY */
     C(0x1c00, MR,      RR_a,  Z,   r1p1_32s, r2_32s, new, r1_D32, mul, 0)
     C(0x5c00, M,       RX_a,  Z,   r1p1_32s, m2_32s, new, r1_D32, mul, 0)
diff --git a/target-s390x/translate.c b/target-s390x/translate.c
index 01beb24..82dda8b 100644
--- a/target-s390x/translate.c
+++ b/target-s390x/translate.c
@@ -1345,7 +1345,7 @@ static void disas_e3(DisasContext* s, int op, int r1, int x2, int b2, int d2)
     addr = get_address(s, x2, b2, d2);
     switch (op) {
     case 0x2: /* LTG R1,D2(X2,B2) [RXY] */
-    case 0x4: /* lg r1,d2(x2,b2) */
+    case 0x4: /* LG r1,d2(x2,b2) */
         tcg_gen_qemu_ld64(regs[r1], addr, get_mem_index(s));
         if (op == 0x2) {
             set_cc_s64(s, regs[r1]);
@@ -1386,16 +1386,6 @@ static void disas_e3(DisasContext* s, int op, int r1, int x2, int b2, int d2)
         store_reg(r1, tmp2);
         tcg_temp_free_i64(tmp2);
         break;
-    case 0x14: /* LGF      R1,D2(X2,B2)     [RXY] */
-    case 0x16: /* LLGF      R1,D2(X2,B2)     [RXY] */
-        tmp2 = tcg_temp_new_i64();
-        tcg_gen_qemu_ld32u(tmp2, addr, get_mem_index(s));
-        if (op == 0x14) {
-            tcg_gen_ext32s_i64(tmp2, tmp2);
-        }
-        store_reg(r1, tmp2);
-        tcg_temp_free_i64(tmp2);
-        break;
     case 0x15: /* LGH     R1,D2(X2,B2)     [RXY] */
         tmp2 = tcg_temp_new_i64();
         tcg_gen_qemu_ld16s(tmp2, addr, get_mem_index(s));
@@ -1449,12 +1439,6 @@ static void disas_e3(DisasContext* s, int op, int r1, int x2, int b2, int d2)
         tcg_gen_qemu_st32(tmp2, addr, get_mem_index(s));
         tcg_temp_free_i64(tmp2);
         break;
-    case 0x58: /* LY R1,D2(X2,B2) [RXY] */
-        tmp3 = tcg_temp_new_i64();
-        tcg_gen_qemu_ld32u(tmp3, addr, get_mem_index(s));
-        store_reg32_i64(r1, tmp3);
-        tcg_temp_free_i64(tmp3);
-        break;
     case 0x71: /* LAY R1,D2(X2,B2) [RXY] */
         store_reg(r1, addr);
         break;
@@ -2919,9 +2903,6 @@ static void disas_b9(DisasContext *s, int op, int r1, int r2)
         }
         tcg_temp_free_i64(tmp);
         break;
-    case 0x4: /* LGR R1,R2 [RRE] */
-        store_reg(r1, regs[r2]);
-        break;
     case 0x6: /* LGBR R1,R2 [RRE] */
         tmp2 = load_reg(r2);
         tcg_gen_ext8s_i64(tmp2, tmp2);
@@ -2948,22 +2929,6 @@ static void disas_b9(DisasContext *s, int op, int r1, int r2)
         tcg_temp_free_i64(tmp2);
         tcg_temp_free_i64(tmp3);
         break;
-    case 0x14: /* LGFR     R1,R2     [RRE] */
-        tmp32_1 = load_reg32(r2);
-        tmp = tcg_temp_new_i64();
-        tcg_gen_ext_i32_i64(tmp, tmp32_1);
-        store_reg(r1, tmp);
-        tcg_temp_free_i32(tmp32_1);
-        tcg_temp_free_i64(tmp);
-        break;
-    case 0x16: /* LLGFR      R1,R2     [RRE] */
-        tmp32_1 = load_reg32(r2);
-        tmp = tcg_temp_new_i64();
-        tcg_gen_extu_i32_i64(tmp, tmp32_1);
-        store_reg(r1, tmp);
-        tcg_temp_free_i32(tmp32_1);
-        tcg_temp_free_i64(tmp);
-        break;
     case 0x17: /* LLGTR      R1,R2     [RRE] */
         tmp32_1 = load_reg32(r2);
         tmp = tcg_temp_new_i64();
@@ -3123,11 +3088,6 @@ static void disas_c0(DisasContext *s, int op, int r1, int i2)
         store_reg(r1, tmp);
         tcg_temp_free_i64(tmp);
         break;
-    case 0x1: /* LGFI R1,I2 [RIL] */
-        tmp = tcg_const_i64((int64_t)i2);
-        store_reg(r1, tmp);
-        tcg_temp_free_i64(tmp);
-        break;
     case 0x4: /* BRCL     M1,I2     [RIL] */
         /* m1 & (1 << (3 - cc)) */
         tmp32_1 = tcg_const_i32(3);
@@ -3343,13 +3303,6 @@ static void disas_s390_insn(DisasContext *s)
         set_cc_comp32(s, tmp32_1);
         tcg_temp_free_i32(tmp32_1);
         break;
-    case 0x18: /* LR     R1,R2     [RR] */
-        insn = ld_code2(s->pc);
-        decode_rr(s, insn, &r1, &r2);
-        tmp32_1 = load_reg32(r2);
-        store_reg32(r1, tmp32_1);
-        tcg_temp_free_i32(tmp32_1);
-        break;
     case 0x1d: /* DR     R1,R2               [RR] */
         insn = ld_code2(s->pc);
         decode_rr(s, insn, &r1, &r2);
@@ -3513,18 +3466,6 @@ static void disas_s390_insn(DisasContext *s)
         tcg_temp_free_i64(tmp);
         tcg_temp_free_i64(tmp2);
         break;
-    case 0x58: /* l r1, d2(x2, b2) */
-        insn = ld_code4(s->pc);
-        tmp = decode_rx(s, insn, &r1, &x2, &b2, &d2);
-        tmp2 = tcg_temp_new_i64();
-        tmp32_1 = tcg_temp_new_i32();
-        tcg_gen_qemu_ld32u(tmp2, tmp, get_mem_index(s));
-        tcg_gen_trunc_i64_i32(tmp32_1, tmp2);
-        store_reg32(r1, tmp32_1);
-        tcg_temp_free_i64(tmp);
-        tcg_temp_free_i64(tmp2);
-        tcg_temp_free_i32(tmp32_1);
-        break;
     case 0x5d: /* D      R1,D2(X2,B2)        [RX] */
         insn = ld_code4(s->pc);
         tmp3 = decode_rx(s, insn, &r1, &x2, &b2, &d2);
@@ -4427,6 +4368,33 @@ static ExitStatus op_and(DisasContext *s, DisasOps *o)
     return NO_EXIT;
 }
 
+static ExitStatus op_ld32s(DisasContext *s, DisasOps *o)
+{
+    tcg_gen_qemu_ld32s(o->out, o->in2, get_mem_index(s));
+    return NO_EXIT;
+}
+
+static ExitStatus op_ld32u(DisasContext *s, DisasOps *o)
+{
+    tcg_gen_qemu_ld32u(o->out, o->in2, get_mem_index(s));
+    return NO_EXIT;
+}
+
+static ExitStatus op_ld64(DisasContext *s, DisasOps *o)
+{
+    tcg_gen_qemu_ld64(o->out, o->in2, get_mem_index(s));
+    return NO_EXIT;
+}
+
+static ExitStatus op_mov2(DisasContext *s, DisasOps *o)
+{
+    o->out = o->in2;
+    o->g_out = o->g_in2;
+    TCGV_UNUSED_I64(o->in2);
+    o->g_in2 = false;
+    return NO_EXIT;
+}
+
 static ExitStatus op_mul(DisasContext *s, DisasOps *o)
 {
     tcg_gen_mul_i64(o->out, o->in1, o->in2);
@@ -4566,6 +4534,11 @@ static void prep_r1_P(DisasContext *s, DisasFields *f, DisasOps *o)
    generally handled by having a "prep" generator install the TCG global
    as the destination of the operation.  */
 
+static void wout_r1(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+    store_reg(get_field(f, r1), o->out);
+}
+
 static void wout_r1_32(DisasContext *s, DisasFields *f, DisasOps *o)
 {
     store_reg32_i64(get_field(f, r1), o->out);
@@ -4580,6 +4553,13 @@ static void wout_r1_D32(DisasContext *s, DisasFields *f, DisasOps *o)
     store_reg32_i64(r1, o->out);
 }
 
+static void wout_cond_r1r2_32(DisasContext *s, DisasFields *f, DisasOps *o)
+{
+    if (get_field(f, r1) != get_field(f, r2)) {
+        store_reg32_i64(get_field(f, r1), o->out);
+    }
+}
+
 static void wout_m1_32(DisasContext *s, DisasFields *f, DisasOps *o)
 {
     tcg_gen_qemu_st32(o->out, o->addr1, get_mem_index(s));
-- 
1.7.11.4