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authorRajithaY <rajithax.yerrumsetty@intel.com>2017-04-25 03:31:15 -0700
committerRajitha Yerrumchetty <rajithax.yerrumsetty@intel.com>2017-05-22 06:48:08 +0000
commitbb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch)
treeca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/target-s390x/int_helper.c
parenta14b48d18a9ed03ec191cf16b162206998a895ce (diff)
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to kvmfornfv repo and make use of the updated latest qemu for the execution of all testcase Change-Id: I1280af507a857675c7f81d30c95255635667bdd7 Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/target-s390x/int_helper.c')
-rw-r--r--qemu/target-s390x/int_helper.c155
1 files changed, 0 insertions, 155 deletions
diff --git a/qemu/target-s390x/int_helper.c b/qemu/target-s390x/int_helper.c
deleted file mode 100644
index cc1071eea..000000000
--- a/qemu/target-s390x/int_helper.c
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- * S/390 integer helper routines
- *
- * Copyright (c) 2009 Ulrich Hecht
- * Copyright (c) 2009 Alexander Graf
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "qemu/osdep.h"
-#include "cpu.h"
-#include "qemu/host-utils.h"
-#include "exec/helper-proto.h"
-
-/* #define DEBUG_HELPER */
-#ifdef DEBUG_HELPER
-#define HELPER_LOG(x...) qemu_log(x)
-#else
-#define HELPER_LOG(x...)
-#endif
-
-/* 64/32 -> 32 signed division */
-int64_t HELPER(divs32)(CPUS390XState *env, int64_t a, int64_t b64)
-{
- int32_t ret, b = b64;
- int64_t q;
-
- if (b == 0) {
- runtime_exception(env, PGM_FIXPT_DIVIDE, GETPC());
- }
-
- ret = q = a / b;
- env->retxl = a % b;
-
- /* Catch non-representable quotient. */
- if (ret != q) {
- runtime_exception(env, PGM_FIXPT_DIVIDE, GETPC());
- }
-
- return ret;
-}
-
-/* 64/32 -> 32 unsigned division */
-uint64_t HELPER(divu32)(CPUS390XState *env, uint64_t a, uint64_t b64)
-{
- uint32_t ret, b = b64;
- uint64_t q;
-
- if (b == 0) {
- runtime_exception(env, PGM_FIXPT_DIVIDE, GETPC());
- }
-
- ret = q = a / b;
- env->retxl = a % b;
-
- /* Catch non-representable quotient. */
- if (ret != q) {
- runtime_exception(env, PGM_FIXPT_DIVIDE, GETPC());
- }
-
- return ret;
-}
-
-/* 64/64 -> 64 signed division */
-int64_t HELPER(divs64)(CPUS390XState *env, int64_t a, int64_t b)
-{
- /* Catch divide by zero, and non-representable quotient (MIN / -1). */
- if (b == 0 || (b == -1 && a == (1ll << 63))) {
- runtime_exception(env, PGM_FIXPT_DIVIDE, GETPC());
- }
- env->retxl = a % b;
- return a / b;
-}
-
-/* 128 -> 64/64 unsigned division */
-uint64_t HELPER(divu64)(CPUS390XState *env, uint64_t ah, uint64_t al,
- uint64_t b)
-{
- uint64_t ret;
- /* Signal divide by zero. */
- if (b == 0) {
- runtime_exception(env, PGM_FIXPT_DIVIDE, GETPC());
- }
- if (ah == 0) {
- /* 64 -> 64/64 case */
- env->retxl = al % b;
- ret = al / b;
- } else {
- /* ??? Move i386 idivq helper to host-utils. */
-#ifdef CONFIG_INT128
- __uint128_t a = ((__uint128_t)ah << 64) | al;
- __uint128_t q = a / b;
- env->retxl = a % b;
- ret = q;
- if (ret != q) {
- runtime_exception(env, PGM_FIXPT_DIVIDE, GETPC());
- }
-#else
- S390CPU *cpu = s390_env_get_cpu(env);
- /* 32-bit hosts would need special wrapper functionality - just abort if
- we encounter such a case; it's very unlikely anyways. */
- cpu_abort(CPU(cpu), "128 -> 64/64 division not implemented\n");
-#endif
- }
- return ret;
-}
-
-/* count leading zeros, for find leftmost one */
-uint64_t HELPER(clz)(uint64_t v)
-{
- return clz64(v);
-}
-
-uint64_t HELPER(cvd)(int32_t reg)
-{
- /* positive 0 */
- uint64_t dec = 0x0c;
- int64_t bin = reg;
- int shift;
-
- if (bin < 0) {
- bin = -bin;
- dec = 0x0d;
- }
-
- for (shift = 4; (shift < 64) && bin; shift += 4) {
- dec |= (bin % 10) << shift;
- bin /= 10;
- }
-
- return dec;
-}
-
-uint64_t HELPER(popcnt)(uint64_t r2)
-{
- uint64_t ret = 0;
- int i;
-
- for (i = 0; i < 64; i += 8) {
- uint64_t t = ctpop32((r2 >> i) & 0xff);
- ret |= t << i;
- }
- return ret;
-}