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[Qemu-devel] [PATCH v2 28/29] target/s390x: implement TRANSLATE ONE/TWO
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [PATCH v2 28/29] target/s390x: implement TRANSLATE ONE/TWO TO ONE/TWO |
Date: |
Mon, 29 May 2017 21:24:39 +0200 |
Signed-off-by: Aurelien Jarno <address@hidden>
---
target/s390x/helper.h | 1 +
target/s390x/insn-data.def | 9 +++++++++
target/s390x/mem_helper.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
target/s390x/translate.c | 13 +++++++++++++
4 files changed, 69 insertions(+)
diff --git a/target/s390x/helper.h b/target/s390x/helper.h
index c14268494e..38b3ab8196 100644
--- a/target/s390x/helper.h
+++ b/target/s390x/helper.h
@@ -92,6 +92,7 @@ DEF_HELPER_FLAGS_3(tp, TCG_CALL_NO_WG, i32, env, i64, i32)
DEF_HELPER_FLAGS_4(tr, TCG_CALL_NO_WG, void, env, i32, i64, i64)
DEF_HELPER_4(tre, i64, env, i64, i64, i64)
DEF_HELPER_4(trt, i32, env, i32, i64, i64)
+DEF_HELPER_4(trXX, i32, env, i32, i32, i32)
DEF_HELPER_4(cksm, i64, env, i64, i64, i64)
DEF_HELPER_FLAGS_5(calc_cc, TCG_CALL_NO_RWG_SE, i32, env, i32, i64, i64, i64)
DEF_HELPER_FLAGS_2(sfpc, TCG_CALL_NO_RWG, void, env, i64)
diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def
index 7f554ab133..73dd05daf0 100644
--- a/target/s390x/insn-data.def
+++ b/target/s390x/insn-data.def
@@ -874,6 +874,15 @@
/* TRANSLATE EXTENDED */
C(0xb2a5, TRE, RRE, Z, 0, r2, r1_P, 0, tre, 0)
+/* TRANSLATE ONE TO ONE */
+ C(0xb993, TROO, RRF_c, E2, 0, 0, 0, 0, trXX, 0)
+/* TRANSLATE ONE TO TWO */
+ C(0xb992, TROT, RRF_c, E2, 0, 0, 0, 0, trXX, 0)
+/* TRANSLATE TWO TO ONE */
+ C(0xb991, TRTO, RRF_c, E2, 0, 0, 0, 0, trXX, 0)
+/* TRANSLATE TWO TO TWO */
+ C(0xb990, TRTT, RRF_c, E2, 0, 0, 0, 0, trXX, 0)
+
/* UNPACK */
/* Really format SS_b, but we pack both lengths into one argument
for the helper call, so we might as well leave one 8-bit field. */
diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c
index 73a64bdda3..e7338679e9 100644
--- a/target/s390x/mem_helper.c
+++ b/target/s390x/mem_helper.c
@@ -1196,6 +1196,52 @@ uint32_t HELPER(trt)(CPUS390XState *env, uint32_t len,
uint64_t array,
return do_helper_trt(env, len, array, trans, GETPC());
}
+/* Translate one/two to one/two */
+uint32_t HELPER(trXX)(CPUS390XState *env, uint32_t r1, uint32_t r2,
+ uint32_t sizes)
+{
+ uintptr_t ra = GETPC();
+ int dsize = (sizes & 1) ? 1 : 2;
+ int ssize = (sizes & 2) ? 1 : 2;
+ uint16_t tst = env->regs[0] & ((1 << (8 * dsize)) - 1);
+ uint64_t tbl = get_address(env, 1) & ~7;
+ uint64_t dst = get_address(env, r1);
+ uint64_t len = get_length(env, r1 + 1);
+ uint64_t src = get_address(env, r2);
+ uint32_t cc = 3;
+ int i;
+
+ check_alignment(env, len, ssize, ra);
+
+ /* Lest we fail to service interrupts in a timely manner, */
+ /* limit the amount of work we're willing to do. */
+ for (i = 0; i < 0x2000; i++) {
+ uint16_t sval = cpu_ldusize_data_ra(env, src, ssize, ra);
+ uint64_t tble = tbl + (sval * dsize);
+ uint16_t dval = cpu_ldusize_data_ra(env, tble, dsize, ra);
+ if (dval == tst) {
+ cc = 1;
+ break;
+ }
+ cpu_stsize_data_ra(env, dst, dval, dsize, ra);
+
+ len -= ssize;
+ src += ssize;
+ dst += dsize;
+
+ if (len == 0) {
+ cc = 0;
+ break;
+ }
+ }
+
+ set_address(env, r1, dst);
+ set_length(env, r1 + 1, len);
+ set_address(env, r2, src);
+
+ return cc;
+}
+
void HELPER(cdsg)(CPUS390XState *env, uint64_t addr,
uint32_t r1, uint32_t r3)
{
diff --git a/target/s390x/translate.c b/target/s390x/translate.c
index a7c564fa93..fb6c57fbec 100644
--- a/target/s390x/translate.c
+++ b/target/s390x/translate.c
@@ -4348,6 +4348,19 @@ static ExitStatus op_trt(DisasContext *s, DisasOps *o)
return NO_EXIT;
}
+static ExitStatus op_trXX(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));
+ TCGv_i32 r2 = tcg_const_i32(get_field(s->fields, r2));
+ TCGv_i32 sizes = tcg_const_i32(s->insn->opc & 3);
+ gen_helper_trXX(cc_op, cpu_env, r1, r2, sizes);
+ tcg_temp_free_i32(r1);
+ tcg_temp_free_i32(r2);
+ tcg_temp_free_i32(sizes);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
static ExitStatus op_ts(DisasContext *s, DisasOps *o)
{
TCGv_i32 t1 = tcg_const_i32(0xff);
--
2.11.0
- [Qemu-devel] [PATCH v2 16/29] target/s390x: improve 24-bit and 31-bit lengths read/write, (continued)
- [Qemu-devel] [PATCH v2 10/29] target/s390x: implement MOVE INVERSE, Aurelien Jarno, 2017/05/29
- [Qemu-devel] [PATCH v2 20/29] target/s390x: improve MOVE LONG and MOVE LONG EXTENDED, Aurelien Jarno, 2017/05/29
- [Qemu-devel] [PATCH v2 11/29] target/s390x: implement MOVE NUMERICS, Aurelien Jarno, 2017/05/29
- [Qemu-devel] [PATCH v2 28/29] target/s390x: implement TRANSLATE ONE/TWO TO ONE/TWO,
Aurelien Jarno <=
- [Qemu-devel] [PATCH v2 13/29] target/s390x: implement MOVE ZONES, Aurelien Jarno, 2017/05/29
- [Qemu-devel] [PATCH v2 02/29] target/s390x: remove some Linux assumptions from IPTE, Aurelien Jarno, 2017/05/29
- [Qemu-devel] [PATCH v2 27/29] target/s390x: implement TEST DECIMAL, Aurelien Jarno, 2017/05/29
- [Qemu-devel] [PATCH v2 25/29] target/s390x: implement UNPACK ASCII, Aurelien Jarno, 2017/05/29
- [Qemu-devel] [PATCH v2 21/29] target/s390x: implement COMPARE LOGICAL LONG UNICODE, Aurelien Jarno, 2017/05/29
- [Qemu-devel] [PATCH v2 23/29] target/s390x: implement PACK ASCII, Aurelien Jarno, 2017/05/29
- [Qemu-devel] [PATCH v2 15/29] target/s390x: improve 24-bit and 31-bit addresses write, Aurelien Jarno, 2017/05/29