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[Qemu-devel] [PATCH v3 07/30] target/s390x: implement LOAD PAIR FROM QUA
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [PATCH v3 07/30] target/s390x: implement LOAD PAIR FROM QUADWORD |
Date: |
Thu, 1 Jun 2017 00:01:06 +0200 |
Signed-off-by: Aurelien Jarno <address@hidden>
---
target/s390x/helper.h | 1 +
target/s390x/insn-data.def | 2 ++
target/s390x/mem_helper.c | 13 +++++++++++++
target/s390x/translate.c | 7 +++++++
4 files changed, 23 insertions(+)
diff --git a/target/s390x/helper.h b/target/s390x/helper.h
index c6fbc3b949..ca78d1b162 100644
--- a/target/s390x/helper.h
+++ b/target/s390x/helper.h
@@ -87,6 +87,7 @@ DEF_HELPER_FLAGS_2(sfas, TCG_CALL_NO_WG, void, env, i64)
DEF_HELPER_FLAGS_1(popcnt, TCG_CALL_NO_RWG_SE, i64, i64)
DEF_HELPER_FLAGS_1(stfl, TCG_CALL_NO_RWG, void, env)
DEF_HELPER_2(stfle, i32, env, i64)
+DEF_HELPER_FLAGS_2(lpq, TCG_CALL_NO_WG, i64, env, i64)
#ifndef CONFIG_USER_ONLY
DEF_HELPER_3(servc, i32, env, i64, i64)
diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def
index f92bfde4f8..53c86d5832 100644
--- a/target/s390x/insn-data.def
+++ b/target/s390x/insn-data.def
@@ -507,6 +507,8 @@
/* LOAD PAIR DISJOINT */
D(0xc804, LPD, SSF, ILA, 0, 0, new_P, r3_P32, lpd, 0, MO_TEUL)
D(0xc805, LPDG, SSF, ILA, 0, 0, new_P, r3_P64, lpd, 0, MO_TEQ)
+/* LOAD PAIR FROM QUADWORD */
+ C(0xe38f, LPQ, RXY_a, Z, 0, a2, r1_P, 0, lpq, 0)
/* LOAD POSITIVE */
C(0x1000, LPR, RR_a, Z, 0, r2_32s, new, r1_32, abs, abs32)
C(0xb900, LPGR, RRE, Z, 0, r2, r1, 0, abs, abs64)
diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c
index 850472e9ff..4f34f873c7 100644
--- a/target/s390x/mem_helper.c
+++ b/target/s390x/mem_helper.c
@@ -1237,6 +1237,19 @@ uint64_t HELPER(lra)(CPUS390XState *env, uint64_t addr)
}
#endif
+/* load pair from quadword */
+uint64_t HELPER(lpq)(CPUS390XState *env, uint64_t addr)
+{
+ uintptr_t ra = GETPC();
+ int mem_idx = cpu_mmu_index(env, false);
+ TCGMemOpIdx oi = make_memop_idx(MO_TEQ | MO_ALIGN_16, mem_idx);
+
+ Int128 v = helper_atomic_ldo_be_mmu(env, addr, oi, ra);
+
+ env->retxl = int128_getlo(v);
+ return int128_gethi(v);
+}
+
/* Execute instruction. This instruction executes an insn modified with
the contents of r1. It does not change the executed instruction in memory;
it does not change the program counter.
diff --git a/target/s390x/translate.c b/target/s390x/translate.c
index 00b91c4f3a..ec61590e50 100644
--- a/target/s390x/translate.c
+++ b/target/s390x/translate.c
@@ -2830,6 +2830,13 @@ static ExitStatus op_lpd(DisasContext *s, DisasOps *o)
return NO_EXIT;
}
+static ExitStatus op_lpq(DisasContext *s, DisasOps *o)
+{
+ gen_helper_lpq(o->out, cpu_env, o->in2);
+ return_low128(o->out2);
+ return NO_EXIT;
+}
+
#ifndef CONFIG_USER_ONLY
static ExitStatus op_lura(DisasContext *s, DisasOps *o)
{
--
2.11.0
- [Qemu-devel] [PATCH v3 13/30] target/s390x: implement MOVE ZONES, (continued)
- [Qemu-devel] [PATCH v3 13/30] target/s390x: implement MOVE ZONES, Aurelien Jarno, 2017/05/31
- [Qemu-devel] [PATCH v3 11/30] target/s390x: implement MOVE NUMERICS, Aurelien Jarno, 2017/05/31
- [Qemu-devel] [PATCH v3 12/30] target/s390x: implement MOVE WITH OFFSET, Aurelien Jarno, 2017/05/31
- [Qemu-devel] [PATCH v3 06/30] target/s390x: implement PACK, Aurelien Jarno, 2017/05/31
- [Qemu-devel] [PATCH v3 14/30] target/s390x: improve 24-bit and 31-bit addresses read, Aurelien Jarno, 2017/05/31
- [Qemu-devel] [PATCH v3 20/30] target/s390x: improve MOVE LONG and MOVE LONG EXTENDED, Aurelien Jarno, 2017/05/31
- [Qemu-devel] [PATCH v3 08/30] target/s390x: implement STORE PAIR TO QUADWORD, Aurelien Jarno, 2017/05/31
- [Qemu-devel] [PATCH v3 03/30] target/s390x: implement local-TLB-clearing in IPTE, Aurelien Jarno, 2017/05/31
- [Qemu-devel] [PATCH v3 02/30] target/s390x: remove some Linux assumptions from IPTE, Aurelien Jarno, 2017/05/31
- [Qemu-devel] [PATCH v3 17/30] target/s390x: fix COMPARE LOGICAL LONG EXTENDED, Aurelien Jarno, 2017/05/31
- [Qemu-devel] [PATCH v3 07/30] target/s390x: implement LOAD PAIR FROM QUADWORD,
Aurelien Jarno <=