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[Qemu-devel] [PATCH 08/26] target/s390x: implement MOVE INVERSE
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [PATCH 08/26] target/s390x: implement MOVE INVERSE |
Date: |
Thu, 25 May 2017 23:04:50 +0200 |
Signed-off-by: Aurelien Jarno <address@hidden>
---
target/s390x/helper.h | 1 +
target/s390x/insn-data.def | 2 ++
target/s390x/mem_helper.c | 12 ++++++++++++
target/s390x/translate.c | 8 ++++++++
4 files changed, 23 insertions(+)
diff --git a/target/s390x/helper.h b/target/s390x/helper.h
index fdd6e76410..7d6f11abe8 100644
--- a/target/s390x/helper.h
+++ b/target/s390x/helper.h
@@ -3,6 +3,7 @@ DEF_HELPER_FLAGS_4(nc, TCG_CALL_NO_WG, i32, env, i32, i64, i64)
DEF_HELPER_FLAGS_4(oc, TCG_CALL_NO_WG, i32, env, i32, i64, i64)
DEF_HELPER_FLAGS_4(xc, TCG_CALL_NO_WG, i32, env, i32, i64, i64)
DEF_HELPER_FLAGS_4(mvc, TCG_CALL_NO_WG, void, env, i32, i64, i64)
+DEF_HELPER_FLAGS_4(mvcin, TCG_CALL_NO_WG, void, env, i32, i64, i64)
DEF_HELPER_FLAGS_4(clc, TCG_CALL_NO_WG, i32, env, i32, i64, i64)
DEF_HELPER_3(mvcl, i32, env, i32, i32)
DEF_HELPER_FLAGS_4(clm, TCG_CALL_NO_WG, i32, env, i32, i32, i64)
diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def
index 751e3164dd..52f943c71e 100644
--- a/target/s390x/insn-data.def
+++ b/target/s390x/insn-data.def
@@ -566,6 +566,8 @@
C(0xe548, MVGHI, SIL, GIE, la1, i2, 0, m1_64, mov2, 0)
C(0x9200, MVI, SI, Z, la1, i2, 0, m1_8, mov2, 0)
C(0xeb52, MVIY, SIY, LD, la1, i2, 0, m1_8, mov2, 0)
+/* MOVE INVERSE */
+ C(0xe800, MVCIN, SS_a, Z, la1, a2, 0, 0, mvcin, 0)
/* MOVE LONG */
C(0x0e00, MVCL, RR_a, Z, 0, 0, 0, 0, mvcl, 0)
/* MOVE LONG EXTENDED */
diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c
index f650b08779..7faaf588a5 100644
--- a/target/s390x/mem_helper.c
+++ b/target/s390x/mem_helper.c
@@ -232,6 +232,18 @@ void HELPER(mvc)(CPUS390XState *env, uint32_t l, uint64_t
dest, uint64_t src)
do_helper_mvc(env, l, dest, src, GETPC());
}
+/* move inverse */
+void HELPER(mvcin)(CPUS390XState *env, uint32_t l, uint64_t dest, uint64_t src)
+{
+ uintptr_t ra = GETPC();
+ int i;
+
+ for (i = 0; i <= l; i++) {
+ uint8_t v = cpu_ldub_data_ra(env, src - i, ra);
+ cpu_stb_data_ra(env, dest + i, v, ra);
+ }
+}
+
/* compare unsigned byte arrays */
static uint32_t do_helper_clc(CPUS390XState *env, uint32_t l, uint64_t s1,
uint64_t s2, uintptr_t ra)
diff --git a/target/s390x/translate.c b/target/s390x/translate.c
index 231b51c313..b939c5a39f 100644
--- a/target/s390x/translate.c
+++ b/target/s390x/translate.c
@@ -2925,6 +2925,14 @@ static ExitStatus op_mvc(DisasContext *s, DisasOps *o)
return NO_EXIT;
}
+static ExitStatus op_mvcin(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
+ gen_helper_mvcin(cpu_env, l, o->addr1, o->in2);
+ tcg_temp_free_i32(l);
+ return NO_EXIT;
+}
+
static ExitStatus op_mvcl(DisasContext *s, DisasOps *o)
{
TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
--
2.11.0
- [Qemu-devel] [PATCH 00/26] target/s390x: fix, improve and implement some more instructions, Aurelien Jarno, 2017/05/25
- [Qemu-devel] [PATCH 03/26] target/s390x: implement TEST AND SET, Aurelien Jarno, 2017/05/25
- [Qemu-devel] [PATCH 05/26] target/s390x: implement PACK, Aurelien Jarno, 2017/05/25
- [Qemu-devel] [PATCH 01/26] target/s390x: remove dead code in translate.c, Aurelien Jarno, 2017/05/25
- [Qemu-devel] [PATCH 08/26] target/s390x: implement MOVE INVERSE,
Aurelien Jarno <=
- [Qemu-devel] [PATCH 09/26] target/s390x: implement MOVE NUMERICS, Aurelien Jarno, 2017/05/25
- [Qemu-devel] [PATCH 14/26] target/s390x: improve 24-bit and 31-bit lengths read/write, Aurelien Jarno, 2017/05/25
- [Qemu-devel] [PATCH 26/26] target/s390x: update maximum TCG model to z800, Aurelien Jarno, 2017/05/25
- [Qemu-devel] [PATCH 15/26] target/s390x: fix COMPARE LOGICAL LONG EXTENDED, Aurelien Jarno, 2017/05/25
- [Qemu-devel] [PATCH 16/26] target/s390x: implement COMPARE LOGICAL LONG, Aurelien Jarno, 2017/05/25