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[Qemu-devel] [PULL 24/34] target-s390x: implement TRANSLATE AND TEST ins
From: |
Alexander Graf |
Subject: |
[Qemu-devel] [PULL 24/34] target-s390x: implement TRANSLATE AND TEST instruction |
Date: |
Fri, 5 Jun 2015 01:41:54 +0200 |
From: Aurelien Jarno <address@hidden>
It is part of the basic zArchitecture instructions. Allow it to be call
from EXECUTE.
Reviewed-by: Richard Henderson <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>
Signed-off-by: Alexander Graf <address@hidden>
---
target-s390x/helper.h | 1 +
target-s390x/insn-data.def | 2 ++
target-s390x/mem_helper.c | 24 ++++++++++++++++++++++++
target-s390x/translate.c | 10 ++++++++++
4 files changed, 37 insertions(+)
diff --git a/target-s390x/helper.h b/target-s390x/helper.h
index cb0b421..48b015e 100644
--- a/target-s390x/helper.h
+++ b/target-s390x/helper.h
@@ -77,6 +77,7 @@ DEF_HELPER_FLAGS_3(sqxb, TCG_CALL_NO_WG, i64, env, i64, i64)
DEF_HELPER_FLAGS_1(cvd, TCG_CALL_NO_RWG_SE, i64, s32)
DEF_HELPER_FLAGS_4(unpk, TCG_CALL_NO_WG, void, env, i32, i64, i64)
DEF_HELPER_FLAGS_4(tr, TCG_CALL_NO_WG, void, env, i32, i64, i64)
+DEF_HELPER_4(trt, i32, env, i32, i64, i64)
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 a12939d..e401754 100644
--- a/target-s390x/insn-data.def
+++ b/target-s390x/insn-data.def
@@ -759,6 +759,8 @@
/* TRANSLATE */
C(0xdc00, TR, SS_a, Z, la1, a2, 0, 0, tr, 0)
+/* TRANSLATE AND TEST */
+ C(0xdd00, TRT, SS_a, Z, la1, a2, 0, 0, trt, 0)
/* UNPACK */
/* Really format SS_b, but we pack both lengths into one argument
diff --git a/target-s390x/mem_helper.c b/target-s390x/mem_helper.c
index 0e8cd0f..e19e1aa 100644
--- a/target-s390x/mem_helper.c
+++ b/target-s390x/mem_helper.c
@@ -509,6 +509,9 @@ uint32_t HELPER(ex)(CPUS390XState *env, uint32_t cc,
uint64_t v1,
case 0xc00:
helper_tr(env, l, get_address(env, 0, b1, d1),
get_address(env, 0, b2, d2));
+ case 0xd00:
+ cc = helper_trt(env, l, get_address(env, 0, b1, d1),
+ get_address(env, 0, b2, d2));
break;
default:
goto abort;
@@ -801,6 +804,27 @@ void HELPER(tr)(CPUS390XState *env, uint32_t len, uint64_t
array,
}
}
+uint32_t HELPER(trt)(CPUS390XState *env, uint32_t len, uint64_t array,
+ uint64_t trans)
+{
+ uint32_t cc = 0;
+ int i;
+
+ for (i = 0; i <= len; i++) {
+ uint8_t byte = cpu_ldub_data(env, array + i);
+ uint8_t sbyte = cpu_ldub_data(env, trans + byte);
+
+ if (sbyte != 0) {
+ env->regs[1] = array + i;
+ env->regs[2] = (env->regs[2] & ~0xff) | sbyte;
+ cc = (i == len) ? 2 : 1;
+ break;
+ }
+ }
+
+ return cc;
+}
+
#if !defined(CONFIG_USER_ONLY)
void HELPER(lctlg)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3)
{
diff --git a/target-s390x/translate.c b/target-s390x/translate.c
index b0dbfe8..003598d 100644
--- a/target-s390x/translate.c
+++ b/target-s390x/translate.c
@@ -3787,6 +3787,16 @@ static ExitStatus op_tr(DisasContext *s, DisasOps *o)
return NO_EXIT;
}
+static ExitStatus op_trt(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
+ potential_page_fault(s);
+ gen_helper_trt(cc_op, cpu_env, l, o->addr1, o->in2);
+ tcg_temp_free_i32(l);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
static ExitStatus op_unpk(DisasContext *s, DisasOps *o)
{
TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
--
1.7.12.4
- [Qemu-devel] [PULL 09/34] target-s390x: implement STPT helper, (continued)
- [Qemu-devel] [PULL 09/34] target-s390x: implement STPT helper, Alexander Graf, 2015/06/04
- [Qemu-devel] [PULL 14/34] target-s390x: silence NaNs for LOAD LENGTHENED and LOAD ROUNDED, Alexander Graf, 2015/06/04
- [Qemu-devel] [PULL 16/34] target-s390x: move a few instructions to the correct facility, Alexander Graf, 2015/06/04
- [Qemu-devel] [PULL 20/34] target-s390x: change CHRL and CGHRL format to RIL-b, Alexander Graf, 2015/06/04
- [Qemu-devel] [PULL 30/34] target-s390x: add a cpu_mmu_idx_to_asc function, Alexander Graf, 2015/06/04
- [Qemu-devel] [PULL 12/34] target-s390x: fix MMU index computation, Alexander Graf, 2015/06/04
- [Qemu-devel] [PULL 11/34] target-s390x: fix PSW value on dynamical exception from helpers, Alexander Graf, 2015/06/04
- [Qemu-devel] [PULL 15/34] target-s390x: detect tininess before rounding for FP operations, Alexander Graf, 2015/06/04
- [Qemu-devel] [PULL 03/34] target-s390x: optimize (negative-) abs computation, Alexander Graf, 2015/06/04
- [Qemu-devel] [PULL 01/34] target-s390x: fix CC computation for EX instruction, Alexander Graf, 2015/06/04
- [Qemu-devel] [PULL 24/34] target-s390x: implement TRANSLATE AND TEST instruction,
Alexander Graf <=
- [Qemu-devel] [PULL 13/34] target-s390x: define default NaN values, Alexander Graf, 2015/06/04
- [Qemu-devel] [PULL 33/34] target-s390x: fix MVC instruction when areas overlap, Alexander Graf, 2015/06/04
- [Qemu-devel] [PULL 22/34] target-s390x: move SET DFP ROUNDING MODE to the correct facility, Alexander Graf, 2015/06/04
- [Qemu-devel] [PULL 10/34] target-s390x: fix LOAD MULTIPLE instruction on page boundary, Alexander Graf, 2015/06/04
- [Qemu-devel] [PULL 18/34] target-s390x: fix exception for invalid operation code, Alexander Graf, 2015/06/04
- [Qemu-devel] [PULL 27/34] target-s390x: implement miscellaneous-instruction-extensions facility, Alexander Graf, 2015/06/04
- [Qemu-devel] [PULL 23/34] target-s390x: implement LOAD FP INTEGER instructions, Alexander Graf, 2015/06/04
- [Qemu-devel] [PULL 21/34] target-s390x: move STORE CLOCK FAST to the correct facility, Alexander Graf, 2015/06/04