Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

1 files changed, 2695 insertions, 0 deletions

diff --git a/qemu/target-tricore/op_helper.c b/qemu/target-tricore/op_helper.c
new file mode 100644
index 000000000..53edbdae1
--- /dev/null
+++ b/qemu/target-tricore/op_helper.c
@@ -0,0 +1,2695 @@
+/*
+ *  Copyright (c) 2012-2014 Bastian Koppelmann C-Lab/University Paderborn
+ *
+ * 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 <stdlib.h>
+#include "cpu.h"
+#include "qemu/host-utils.h"
+#include "exec/helper-proto.h"
+#include "exec/cpu_ldst.h"
+#include <zlib.h> /* for crc32 */
+
+/* Addressing mode helper */
+
+static uint16_t reverse16(uint16_t val)
+{
+    uint8_t high = (uint8_t)(val >> 8);
+    uint8_t low  = (uint8_t)(val & 0xff);
+
+    uint16_t rh, rl;
+
+    rl = (uint16_t)((high * 0x0202020202ULL & 0x010884422010ULL) % 1023);
+    rh = (uint16_t)((low * 0x0202020202ULL & 0x010884422010ULL) % 1023);
+
+    return (rh << 8) | rl;
+}
+
+uint32_t helper_br_update(uint32_t reg)
+{
+    uint32_t index = reg & 0xffff;
+    uint32_t incr  = reg >> 16;
+    uint32_t new_index = reverse16(reverse16(index) + reverse16(incr));
+    return reg - index + new_index;
+}
+
+uint32_t helper_circ_update(uint32_t reg, uint32_t off)
+{
+    uint32_t index = reg & 0xffff;
+    uint32_t length = reg >> 16;
+    int32_t new_index = index + off;
+    if (new_index < 0) {
+        new_index += length;
+    } else {
+        new_index %= length;
+    }
+    return reg - index + new_index;
+}
+
+static uint32_t ssov32(CPUTriCoreState *env, int64_t arg)
+{
+    uint32_t ret;
+    int64_t max_pos = INT32_MAX;
+    int64_t max_neg = INT32_MIN;
+    if (arg > max_pos) {
+        env->PSW_USB_V = (1 << 31);
+        env->PSW_USB_SV = (1 << 31);
+        ret = (target_ulong)max_pos;
+    } else {
+        if (arg < max_neg) {
+            env->PSW_USB_V = (1 << 31);
+            env->PSW_USB_SV = (1 << 31);
+            ret = (target_ulong)max_neg;
+        } else {
+            env->PSW_USB_V = 0;
+            ret = (target_ulong)arg;
+        }
+    }
+    env->PSW_USB_AV = arg ^ arg * 2u;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+    return ret;
+}
+
+static uint32_t suov32_pos(CPUTriCoreState *env, uint64_t arg)
+{
+    uint32_t ret;
+    uint64_t max_pos = UINT32_MAX;
+    if (arg > max_pos) {
+        env->PSW_USB_V = (1 << 31);
+        env->PSW_USB_SV = (1 << 31);
+        ret = (target_ulong)max_pos;
+    } else {
+        env->PSW_USB_V = 0;
+        ret = (target_ulong)arg;
+     }
+    env->PSW_USB_AV = arg ^ arg * 2u;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+    return ret;
+}
+
+static uint32_t suov32_neg(CPUTriCoreState *env, int64_t arg)
+{
+    uint32_t ret;
+
+    if (arg < 0) {
+        env->PSW_USB_V = (1 << 31);
+        env->PSW_USB_SV = (1 << 31);
+        ret = 0;
+    } else {
+        env->PSW_USB_V = 0;
+        ret = (target_ulong)arg;
+    }
+    env->PSW_USB_AV = arg ^ arg * 2u;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+    return ret;
+}
+
+static uint32_t ssov16(CPUTriCoreState *env, int32_t hw0, int32_t hw1)
+{
+    int32_t max_pos = INT16_MAX;
+    int32_t max_neg = INT16_MIN;
+    int32_t av0, av1;
+
+    env->PSW_USB_V = 0;
+    av0 = hw0 ^ hw0 * 2u;
+    if (hw0 > max_pos) {
+        env->PSW_USB_V = (1 << 31);
+        hw0 = max_pos;
+    } else if (hw0 < max_neg) {
+        env->PSW_USB_V = (1 << 31);
+        hw0 = max_neg;
+    }
+
+    av1 = hw1 ^ hw1 * 2u;
+    if (hw1 > max_pos) {
+        env->PSW_USB_V = (1 << 31);
+        hw1 = max_pos;
+    } else if (hw1 < max_neg) {
+        env->PSW_USB_V = (1 << 31);
+        hw1 = max_neg;
+    }
+
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = (av0 | av1) << 16;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+    return (hw0 & 0xffff) | (hw1 << 16);
+}
+
+static uint32_t suov16(CPUTriCoreState *env, int32_t hw0, int32_t hw1)
+{
+    int32_t max_pos = UINT16_MAX;
+    int32_t av0, av1;
+
+    env->PSW_USB_V = 0;
+    av0 = hw0 ^ hw0 * 2u;
+    if (hw0 > max_pos) {
+        env->PSW_USB_V = (1 << 31);
+        hw0 = max_pos;
+    } else if (hw0 < 0) {
+        env->PSW_USB_V = (1 << 31);
+        hw0 = 0;
+    }
+
+    av1 = hw1 ^ hw1 * 2u;
+    if (hw1 > max_pos) {
+        env->PSW_USB_V = (1 << 31);
+        hw1 = max_pos;
+    } else if (hw1 < 0) {
+        env->PSW_USB_V = (1 << 31);
+        hw1 = 0;
+    }
+
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = (av0 | av1) << 16;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+    return (hw0 & 0xffff) | (hw1 << 16);
+}
+
+target_ulong helper_add_ssov(CPUTriCoreState *env, target_ulong r1,
+                             target_ulong r2)
+{
+    int64_t t1 = sextract64(r1, 0, 32);
+    int64_t t2 = sextract64(r2, 0, 32);
+    int64_t result = t1 + t2;
+    return ssov32(env, result);
+}
+
+uint64_t helper_add64_ssov(CPUTriCoreState *env, uint64_t r1, uint64_t r2)
+{
+    uint64_t result;
+    int64_t ovf;
+
+    result = r1 + r2;
+    ovf = (result ^ r1) & ~(r1 ^ r2);
+    env->PSW_USB_AV = (result ^ result * 2u) >> 32;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+    if (ovf < 0) {
+        env->PSW_USB_V = (1 << 31);
+        env->PSW_USB_SV = (1 << 31);
+        /* ext_ret > MAX_INT */
+        if ((int64_t)r1 >= 0) {
+            result = INT64_MAX;
+        /* ext_ret < MIN_INT */
+        } else {
+            result = INT64_MIN;
+        }
+    } else {
+        env->PSW_USB_V = 0;
+    }
+    return result;
+}
+
+target_ulong helper_add_h_ssov(CPUTriCoreState *env, target_ulong r1,
+                               target_ulong r2)
+{
+    int32_t ret_hw0, ret_hw1;
+
+    ret_hw0 = sextract32(r1, 0, 16) + sextract32(r2, 0, 16);
+    ret_hw1 = sextract32(r1, 16, 16) + sextract32(r2, 16, 16);
+    return ssov16(env, ret_hw0, ret_hw1);
+}
+
+uint32_t helper_addr_h_ssov(CPUTriCoreState *env, uint64_t r1, uint32_t r2_l,
+                            uint32_t r2_h)
+{
+    int64_t mul_res0 = sextract64(r1, 0, 32);
+    int64_t mul_res1 = sextract64(r1, 32, 32);
+    int64_t r2_low = sextract64(r2_l, 0, 32);
+    int64_t r2_high = sextract64(r2_h, 0, 32);
+    int64_t result0, result1;
+    uint32_t ovf0, ovf1;
+    uint32_t avf0, avf1;
+
+    ovf0 = ovf1 = 0;
+
+    result0 = r2_low + mul_res0 + 0x8000;
+    result1 = r2_high + mul_res1 + 0x8000;
+
+    avf0 = result0 * 2u;
+    avf0 = result0 ^ avf0;
+    avf1 = result1 * 2u;
+    avf1 = result1 ^ avf1;
+
+    if (result0 > INT32_MAX) {
+        ovf0 = (1 << 31);
+        result0 = INT32_MAX;
+    } else if (result0 < INT32_MIN) {
+        ovf0 = (1 << 31);
+        result0 = INT32_MIN;
+    }
+
+    if (result1 > INT32_MAX) {
+        ovf1 = (1 << 31);
+        result1 = INT32_MAX;
+    } else if (result1 < INT32_MIN) {
+        ovf1 = (1 << 31);
+        result1 = INT32_MIN;
+    }
+
+    env->PSW_USB_V = ovf0 | ovf1;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+
+    env->PSW_USB_AV = avf0 | avf1;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return (result1 & 0xffff0000ULL) | ((result0 >> 16) & 0xffffULL);
+}
+
+uint32_t helper_addsur_h_ssov(CPUTriCoreState *env, uint64_t r1, uint32_t r2_l,
+                              uint32_t r2_h)
+{
+    int64_t mul_res0 = sextract64(r1, 0, 32);
+    int64_t mul_res1 = sextract64(r1, 32, 32);
+    int64_t r2_low = sextract64(r2_l, 0, 32);
+    int64_t r2_high = sextract64(r2_h, 0, 32);
+    int64_t result0, result1;
+    uint32_t ovf0, ovf1;
+    uint32_t avf0, avf1;
+
+    ovf0 = ovf1 = 0;
+
+    result0 = r2_low - mul_res0 + 0x8000;
+    result1 = r2_high + mul_res1 + 0x8000;
+
+    avf0 = result0 * 2u;
+    avf0 = result0 ^ avf0;
+    avf1 = result1 * 2u;
+    avf1 = result1 ^ avf1;
+
+    if (result0 > INT32_MAX) {
+        ovf0 = (1 << 31);
+        result0 = INT32_MAX;
+    } else if (result0 < INT32_MIN) {
+        ovf0 = (1 << 31);
+        result0 = INT32_MIN;
+    }
+
+    if (result1 > INT32_MAX) {
+        ovf1 = (1 << 31);
+        result1 = INT32_MAX;
+    } else if (result1 < INT32_MIN) {
+        ovf1 = (1 << 31);
+        result1 = INT32_MIN;
+    }
+
+    env->PSW_USB_V = ovf0 | ovf1;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+
+    env->PSW_USB_AV = avf0 | avf1;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return (result1 & 0xffff0000ULL) | ((result0 >> 16) & 0xffffULL);
+}
+
+
+target_ulong helper_add_suov(CPUTriCoreState *env, target_ulong r1,
+                             target_ulong r2)
+{
+    int64_t t1 = extract64(r1, 0, 32);
+    int64_t t2 = extract64(r2, 0, 32);
+    int64_t result = t1 + t2;
+    return suov32_pos(env, result);
+}
+
+target_ulong helper_add_h_suov(CPUTriCoreState *env, target_ulong r1,
+                               target_ulong r2)
+{
+    int32_t ret_hw0, ret_hw1;
+
+    ret_hw0 = extract32(r1, 0, 16) + extract32(r2, 0, 16);
+    ret_hw1 = extract32(r1, 16, 16) + extract32(r2, 16, 16);
+    return suov16(env, ret_hw0, ret_hw1);
+}
+
+target_ulong helper_sub_ssov(CPUTriCoreState *env, target_ulong r1,
+                             target_ulong r2)
+{
+    int64_t t1 = sextract64(r1, 0, 32);
+    int64_t t2 = sextract64(r2, 0, 32);
+    int64_t result = t1 - t2;
+    return ssov32(env, result);
+}
+
+uint64_t helper_sub64_ssov(CPUTriCoreState *env, uint64_t r1, uint64_t r2)
+{
+    uint64_t result;
+    int64_t ovf;
+
+    result = r1 - r2;
+    ovf = (result ^ r1) & (r1 ^ r2);
+    env->PSW_USB_AV = (result ^ result * 2u) >> 32;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+    if (ovf < 0) {
+        env->PSW_USB_V = (1 << 31);
+        env->PSW_USB_SV = (1 << 31);
+        /* ext_ret > MAX_INT */
+        if ((int64_t)r1 >= 0) {
+            result = INT64_MAX;
+        /* ext_ret < MIN_INT */
+        } else {
+            result = INT64_MIN;
+        }
+    } else {
+        env->PSW_USB_V = 0;
+    }
+    return result;
+}
+
+target_ulong helper_sub_h_ssov(CPUTriCoreState *env, target_ulong r1,
+                             target_ulong r2)
+{
+    int32_t ret_hw0, ret_hw1;
+
+    ret_hw0 = sextract32(r1, 0, 16) - sextract32(r2, 0, 16);
+    ret_hw1 = sextract32(r1, 16, 16) - sextract32(r2, 16, 16);
+    return ssov16(env, ret_hw0, ret_hw1);
+}
+
+uint32_t helper_subr_h_ssov(CPUTriCoreState *env, uint64_t r1, uint32_t r2_l,
+                            uint32_t r2_h)
+{
+    int64_t mul_res0 = sextract64(r1, 0, 32);
+    int64_t mul_res1 = sextract64(r1, 32, 32);
+    int64_t r2_low = sextract64(r2_l, 0, 32);
+    int64_t r2_high = sextract64(r2_h, 0, 32);
+    int64_t result0, result1;
+    uint32_t ovf0, ovf1;
+    uint32_t avf0, avf1;
+
+    ovf0 = ovf1 = 0;
+
+    result0 = r2_low - mul_res0 + 0x8000;
+    result1 = r2_high - mul_res1 + 0x8000;
+
+    avf0 = result0 * 2u;
+    avf0 = result0 ^ avf0;
+    avf1 = result1 * 2u;
+    avf1 = result1 ^ avf1;
+
+    if (result0 > INT32_MAX) {
+        ovf0 = (1 << 31);
+        result0 = INT32_MAX;
+    } else if (result0 < INT32_MIN) {
+        ovf0 = (1 << 31);
+        result0 = INT32_MIN;
+    }
+
+    if (result1 > INT32_MAX) {
+        ovf1 = (1 << 31);
+        result1 = INT32_MAX;
+    } else if (result1 < INT32_MIN) {
+        ovf1 = (1 << 31);
+        result1 = INT32_MIN;
+    }
+
+    env->PSW_USB_V = ovf0 | ovf1;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+
+    env->PSW_USB_AV = avf0 | avf1;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return (result1 & 0xffff0000ULL) | ((result0 >> 16) & 0xffffULL);
+}
+
+uint32_t helper_subadr_h_ssov(CPUTriCoreState *env, uint64_t r1, uint32_t r2_l,
+                              uint32_t r2_h)
+{
+    int64_t mul_res0 = sextract64(r1, 0, 32);
+    int64_t mul_res1 = sextract64(r1, 32, 32);
+    int64_t r2_low = sextract64(r2_l, 0, 32);
+    int64_t r2_high = sextract64(r2_h, 0, 32);
+    int64_t result0, result1;
+    uint32_t ovf0, ovf1;
+    uint32_t avf0, avf1;
+
+    ovf0 = ovf1 = 0;
+
+    result0 = r2_low + mul_res0 + 0x8000;
+    result1 = r2_high - mul_res1 + 0x8000;
+
+    avf0 = result0 * 2u;
+    avf0 = result0 ^ avf0;
+    avf1 = result1 * 2u;
+    avf1 = result1 ^ avf1;
+
+    if (result0 > INT32_MAX) {
+        ovf0 = (1 << 31);
+        result0 = INT32_MAX;
+    } else if (result0 < INT32_MIN) {
+        ovf0 = (1 << 31);
+        result0 = INT32_MIN;
+    }
+
+    if (result1 > INT32_MAX) {
+        ovf1 = (1 << 31);
+        result1 = INT32_MAX;
+    } else if (result1 < INT32_MIN) {
+        ovf1 = (1 << 31);
+        result1 = INT32_MIN;
+    }
+
+    env->PSW_USB_V = ovf0 | ovf1;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+
+    env->PSW_USB_AV = avf0 | avf1;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return (result1 & 0xffff0000ULL) | ((result0 >> 16) & 0xffffULL);
+}
+
+target_ulong helper_sub_suov(CPUTriCoreState *env, target_ulong r1,
+                             target_ulong r2)
+{
+    int64_t t1 = extract64(r1, 0, 32);
+    int64_t t2 = extract64(r2, 0, 32);
+    int64_t result = t1 - t2;
+    return suov32_neg(env, result);
+}
+
+target_ulong helper_sub_h_suov(CPUTriCoreState *env, target_ulong r1,
+                               target_ulong r2)
+{
+    int32_t ret_hw0, ret_hw1;
+
+    ret_hw0 = extract32(r1, 0, 16) - extract32(r2, 0, 16);
+    ret_hw1 = extract32(r1, 16, 16) - extract32(r2, 16, 16);
+    return suov16(env, ret_hw0, ret_hw1);
+}
+
+target_ulong helper_mul_ssov(CPUTriCoreState *env, target_ulong r1,
+                             target_ulong r2)
+{
+    int64_t t1 = sextract64(r1, 0, 32);
+    int64_t t2 = sextract64(r2, 0, 32);
+    int64_t result = t1 * t2;
+    return ssov32(env, result);
+}
+
+target_ulong helper_mul_suov(CPUTriCoreState *env, target_ulong r1,
+                             target_ulong r2)
+{
+    int64_t t1 = extract64(r1, 0, 32);
+    int64_t t2 = extract64(r2, 0, 32);
+    int64_t result = t1 * t2;
+
+    return suov32_pos(env, result);
+}
+
+target_ulong helper_sha_ssov(CPUTriCoreState *env, target_ulong r1,
+                             target_ulong r2)
+{
+    int64_t t1 = sextract64(r1, 0, 32);
+    int32_t t2 = sextract64(r2, 0, 6);
+    int64_t result;
+    if (t2 == 0) {
+        result = t1;
+    } else if (t2 > 0) {
+        result = t1 << t2;
+    } else {
+        result = t1 >> -t2;
+    }
+    return ssov32(env, result);
+}
+
+uint32_t helper_abs_ssov(CPUTriCoreState *env, target_ulong r1)
+{
+    target_ulong result;
+    result = ((int32_t)r1 >= 0) ? r1 : (0 - r1);
+    return ssov32(env, result);
+}
+
+uint32_t helper_abs_h_ssov(CPUTriCoreState *env, target_ulong r1)
+{
+    int32_t ret_h0, ret_h1;
+
+    ret_h0 = sextract32(r1, 0, 16);
+    ret_h0 = (ret_h0 >= 0) ? ret_h0 : (0 - ret_h0);
+
+    ret_h1 = sextract32(r1, 16, 16);
+    ret_h1 = (ret_h1 >= 0) ? ret_h1 : (0 - ret_h1);
+
+    return ssov16(env, ret_h0, ret_h1);
+}
+
+target_ulong helper_absdif_ssov(CPUTriCoreState *env, target_ulong r1,
+                                target_ulong r2)
+{
+    int64_t t1 = sextract64(r1, 0, 32);
+    int64_t t2 = sextract64(r2, 0, 32);
+    int64_t result;
+
+    if (t1 > t2) {
+        result = t1 - t2;
+    } else {
+        result = t2 - t1;
+    }
+    return ssov32(env, result);
+}
+
+uint32_t helper_absdif_h_ssov(CPUTriCoreState *env, target_ulong r1,
+                              target_ulong r2)
+{
+    int32_t t1, t2;
+    int32_t ret_h0, ret_h1;
+
+    t1 = sextract32(r1, 0, 16);
+    t2 = sextract32(r2, 0, 16);
+    if (t1 > t2) {
+        ret_h0 = t1 - t2;
+    } else {
+        ret_h0 = t2 - t1;
+    }
+
+    t1 = sextract32(r1, 16, 16);
+    t2 = sextract32(r2, 16, 16);
+    if (t1 > t2) {
+        ret_h1 = t1 - t2;
+    } else {
+        ret_h1 = t2 - t1;
+    }
+
+    return ssov16(env, ret_h0, ret_h1);
+}
+
+target_ulong helper_madd32_ssov(CPUTriCoreState *env, target_ulong r1,
+                                target_ulong r2, target_ulong r3)
+{
+    int64_t t1 = sextract64(r1, 0, 32);
+    int64_t t2 = sextract64(r2, 0, 32);
+    int64_t t3 = sextract64(r3, 0, 32);
+    int64_t result;
+
+    result = t2 + (t1 * t3);
+    return ssov32(env, result);
+}
+
+target_ulong helper_madd32_suov(CPUTriCoreState *env, target_ulong r1,
+                                target_ulong r2, target_ulong r3)
+{
+    uint64_t t1 = extract64(r1, 0, 32);
+    uint64_t t2 = extract64(r2, 0, 32);
+    uint64_t t3 = extract64(r3, 0, 32);
+    int64_t result;
+
+    result = t2 + (t1 * t3);
+    return suov32_pos(env, result);
+}
+
+uint64_t helper_madd64_ssov(CPUTriCoreState *env, target_ulong r1,
+                            uint64_t r2, target_ulong r3)
+{
+    uint64_t ret, ovf;
+    int64_t t1 = sextract64(r1, 0, 32);
+    int64_t t3 = sextract64(r3, 0, 32);
+    int64_t mul;
+
+    mul = t1 * t3;
+    ret = mul + r2;
+    ovf = (ret ^ mul) & ~(mul ^ r2);
+
+    t1 = ret >> 32;
+    env->PSW_USB_AV = t1 ^ t1 * 2u;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    if ((int64_t)ovf < 0) {
+        env->PSW_USB_V = (1 << 31);
+        env->PSW_USB_SV = (1 << 31);
+        /* ext_ret > MAX_INT */
+        if (mul >= 0) {
+            ret = INT64_MAX;
+        /* ext_ret < MIN_INT */
+        } else {
+            ret = INT64_MIN;
+        }
+    } else {
+        env->PSW_USB_V = 0;
+    }
+
+    return ret;
+}
+
+uint32_t
+helper_madd32_q_add_ssov(CPUTriCoreState *env, uint64_t r1, uint64_t r2)
+{
+    int64_t result;
+
+    result = (r1 + r2);
+
+    env->PSW_USB_AV = (result ^ result * 2u);
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    /* we do the saturation by hand, since we produce an overflow on the host
+       if the mul before was (0x80000000 * 0x80000000) << 1). If this is the
+       case, we flip the saturated value. */
+    if (r2 == 0x8000000000000000LL) {
+        if (result > 0x7fffffffLL) {
+            env->PSW_USB_V = (1 << 31);
+            env->PSW_USB_SV = (1 << 31);
+            result = INT32_MIN;
+        } else if (result < -0x80000000LL) {
+            env->PSW_USB_V = (1 << 31);
+            env->PSW_USB_SV = (1 << 31);
+            result = INT32_MAX;
+        } else {
+            env->PSW_USB_V = 0;
+        }
+    } else {
+        if (result > 0x7fffffffLL) {
+            env->PSW_USB_V = (1 << 31);
+            env->PSW_USB_SV = (1 << 31);
+            result = INT32_MAX;
+        } else if (result < -0x80000000LL) {
+            env->PSW_USB_V = (1 << 31);
+            env->PSW_USB_SV = (1 << 31);
+            result = INT32_MIN;
+        } else {
+            env->PSW_USB_V = 0;
+        }
+    }
+    return (uint32_t)result;
+}
+
+uint64_t helper_madd64_q_ssov(CPUTriCoreState *env, uint64_t r1, uint32_t r2,
+                              uint32_t r3, uint32_t n)
+{
+    int64_t t1 = (int64_t)r1;
+    int64_t t2 = sextract64(r2, 0, 32);
+    int64_t t3 = sextract64(r3, 0, 32);
+    int64_t result, mul;
+    int64_t ovf;
+
+    mul = (t2 * t3) << n;
+    result = mul + t1;
+
+    env->PSW_USB_AV = (result ^ result * 2u) >> 32;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    ovf = (result ^ mul) & ~(mul ^ t1);
+    /* we do the saturation by hand, since we produce an overflow on the host
+       if the mul was (0x80000000 * 0x80000000) << 1). If this is the
+       case, we flip the saturated value. */
+    if ((r2 == 0x80000000) && (r3 == 0x80000000) && (n == 1)) {
+        if (ovf >= 0) {
+            env->PSW_USB_V = (1 << 31);
+            env->PSW_USB_SV = (1 << 31);
+            /* ext_ret > MAX_INT */
+            if (mul < 0) {
+                result = INT64_MAX;
+            /* ext_ret < MIN_INT */
+            } else {
+               result = INT64_MIN;
+            }
+        } else {
+            env->PSW_USB_V = 0;
+        }
+    } else {
+        if (ovf < 0) {
+            env->PSW_USB_V = (1 << 31);
+            env->PSW_USB_SV = (1 << 31);
+            /* ext_ret > MAX_INT */
+            if (mul >= 0) {
+                result = INT64_MAX;
+            /* ext_ret < MIN_INT */
+            } else {
+               result = INT64_MIN;
+            }
+        } else {
+            env->PSW_USB_V = 0;
+        }
+    }
+    return (uint64_t)result;
+}
+
+uint32_t helper_maddr_q_ssov(CPUTriCoreState *env, uint32_t r1, uint32_t r2,
+                             uint32_t r3, uint32_t n)
+{
+    int64_t t1 = sextract64(r1, 0, 32);
+    int64_t t2 = sextract64(r2, 0, 32);
+    int64_t t3 = sextract64(r3, 0, 32);
+    int64_t mul, ret;
+
+    if ((t2 == -0x8000ll) && (t3 == -0x8000ll) && (n == 1)) {
+        mul = 0x7fffffff;
+    } else {
+        mul = (t2 * t3) << n;
+    }
+
+    ret = t1 + mul + 0x8000;
+
+    env->PSW_USB_AV = ret ^ ret * 2u;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    if (ret > 0x7fffffffll) {
+        env->PSW_USB_V = (1 << 31);
+        env->PSW_USB_SV |= env->PSW_USB_V;
+        ret = INT32_MAX;
+    } else if (ret < -0x80000000ll) {
+        env->PSW_USB_V = (1 << 31);
+        env->PSW_USB_SV |= env->PSW_USB_V;
+        ret = INT32_MIN;
+    } else {
+        env->PSW_USB_V = 0;
+    }
+    return ret & 0xffff0000ll;
+}
+
+uint64_t helper_madd64_suov(CPUTriCoreState *env, target_ulong r1,
+                            uint64_t r2, target_ulong r3)
+{
+    uint64_t ret, mul;
+    uint64_t t1 = extract64(r1, 0, 32);
+    uint64_t t3 = extract64(r3, 0, 32);
+
+    mul = t1 * t3;
+    ret = mul + r2;
+
+    t1 = ret >> 32;
+    env->PSW_USB_AV = t1 ^ t1 * 2u;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    if (ret < r2) {
+        env->PSW_USB_V = (1 << 31);
+        env->PSW_USB_SV = (1 << 31);
+        /* saturate */
+        ret = UINT64_MAX;
+    } else {
+        env->PSW_USB_V = 0;
+    }
+    return ret;
+}
+
+target_ulong helper_msub32_ssov(CPUTriCoreState *env, target_ulong r1,
+                                target_ulong r2, target_ulong r3)
+{
+    int64_t t1 = sextract64(r1, 0, 32);
+    int64_t t2 = sextract64(r2, 0, 32);
+    int64_t t3 = sextract64(r3, 0, 32);
+    int64_t result;
+
+    result = t2 - (t1 * t3);
+    return ssov32(env, result);
+}
+
+target_ulong helper_msub32_suov(CPUTriCoreState *env, target_ulong r1,
+                                target_ulong r2, target_ulong r3)
+{
+    uint64_t t1 = extract64(r1, 0, 32);
+    uint64_t t2 = extract64(r2, 0, 32);
+    uint64_t t3 = extract64(r3, 0, 32);
+    uint64_t result;
+    uint64_t mul;
+
+    mul = (t1 * t3);
+    result = t2 - mul;
+
+    env->PSW_USB_AV = result ^ result * 2u;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+    /* we calculate ovf by hand here, because the multiplication can overflow on
+       the host, which would give false results if we compare to less than
+       zero */
+    if (mul > t2) {
+        env->PSW_USB_V = (1 << 31);
+        env->PSW_USB_SV = (1 << 31);
+        result = 0;
+    } else {
+        env->PSW_USB_V = 0;
+    }
+    return result;
+}
+
+uint64_t helper_msub64_ssov(CPUTriCoreState *env, target_ulong r1,
+                            uint64_t r2, target_ulong r3)
+{
+    uint64_t ret, ovf;
+    int64_t t1 = sextract64(r1, 0, 32);
+    int64_t t3 = sextract64(r3, 0, 32);
+    int64_t mul;
+
+    mul = t1 * t3;
+    ret = r2 - mul;
+    ovf = (ret ^ r2) & (mul ^ r2);
+
+    t1 = ret >> 32;
+    env->PSW_USB_AV = t1 ^ t1 * 2u;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    if ((int64_t)ovf < 0) {
+        env->PSW_USB_V = (1 << 31);
+        env->PSW_USB_SV = (1 << 31);
+        /* ext_ret > MAX_INT */
+        if (mul < 0) {
+            ret = INT64_MAX;
+        /* ext_ret < MIN_INT */
+        } else {
+            ret = INT64_MIN;
+        }
+    } else {
+        env->PSW_USB_V = 0;
+    }
+    return ret;
+}
+
+uint64_t helper_msub64_suov(CPUTriCoreState *env, target_ulong r1,
+                            uint64_t r2, target_ulong r3)
+{
+    uint64_t ret, mul;
+    uint64_t t1 = extract64(r1, 0, 32);
+    uint64_t t3 = extract64(r3, 0, 32);
+
+    mul = t1 * t3;
+    ret = r2 - mul;
+
+    t1 = ret >> 32;
+    env->PSW_USB_AV = t1 ^ t1 * 2u;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    if (ret > r2) {
+        env->PSW_USB_V = (1 << 31);
+        env->PSW_USB_SV = (1 << 31);
+        /* saturate */
+        ret = 0;
+    } else {
+        env->PSW_USB_V = 0;
+    }
+    return ret;
+}
+
+uint32_t
+helper_msub32_q_sub_ssov(CPUTriCoreState *env, uint64_t r1, uint64_t r2)
+{
+    int64_t result;
+    int64_t t1 = (int64_t)r1;
+    int64_t t2 = (int64_t)r2;
+
+    result = t1 - t2;
+
+    env->PSW_USB_AV = (result ^ result * 2u);
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    /* we do the saturation by hand, since we produce an overflow on the host
+       if the mul before was (0x80000000 * 0x80000000) << 1). If this is the
+       case, we flip the saturated value. */
+    if (r2 == 0x8000000000000000LL) {
+        if (result > 0x7fffffffLL) {
+            env->PSW_USB_V = (1 << 31);
+            env->PSW_USB_SV = (1 << 31);
+            result = INT32_MIN;
+        } else if (result < -0x80000000LL) {
+            env->PSW_USB_V = (1 << 31);
+            env->PSW_USB_SV = (1 << 31);
+            result = INT32_MAX;
+        } else {
+            env->PSW_USB_V = 0;
+        }
+    } else {
+        if (result > 0x7fffffffLL) {
+            env->PSW_USB_V = (1 << 31);
+            env->PSW_USB_SV = (1 << 31);
+            result = INT32_MAX;
+        } else if (result < -0x80000000LL) {
+            env->PSW_USB_V = (1 << 31);
+            env->PSW_USB_SV = (1 << 31);
+            result = INT32_MIN;
+        } else {
+            env->PSW_USB_V = 0;
+        }
+    }
+    return (uint32_t)result;
+}
+
+uint64_t helper_msub64_q_ssov(CPUTriCoreState *env, uint64_t r1, uint32_t r2,
+                              uint32_t r3, uint32_t n)
+{
+    int64_t t1 = (int64_t)r1;
+    int64_t t2 = sextract64(r2, 0, 32);
+    int64_t t3 = sextract64(r3, 0, 32);
+    int64_t result, mul;
+    int64_t ovf;
+
+    mul = (t2 * t3) << n;
+    result = t1 - mul;
+
+    env->PSW_USB_AV = (result ^ result * 2u) >> 32;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    ovf = (result ^ t1) & (t1 ^ mul);
+    /* we do the saturation by hand, since we produce an overflow on the host
+       if the mul before was (0x80000000 * 0x80000000) << 1). If this is the
+       case, we flip the saturated value. */
+    if (mul == 0x8000000000000000LL) {
+        if (ovf >= 0) {
+            env->PSW_USB_V = (1 << 31);
+            env->PSW_USB_SV = (1 << 31);
+            /* ext_ret > MAX_INT */
+            if (mul >= 0) {
+                result = INT64_MAX;
+            /* ext_ret < MIN_INT */
+            } else {
+               result = INT64_MIN;
+            }
+        }
+    } else {
+        if (ovf < 0) {
+            env->PSW_USB_V = (1 << 31);
+            env->PSW_USB_SV = (1 << 31);
+            /* ext_ret > MAX_INT */
+            if (mul < 0) {
+                result = INT64_MAX;
+            /* ext_ret < MIN_INT */
+            } else {
+               result = INT64_MIN;
+            }
+        } else {
+            env->PSW_USB_V = 0;
+        }
+    }
+
+    return (uint64_t)result;
+}
+
+uint32_t helper_msubr_q_ssov(CPUTriCoreState *env, uint32_t r1, uint32_t r2,
+                             uint32_t r3, uint32_t n)
+{
+    int64_t t1 = sextract64(r1, 0, 32);
+    int64_t t2 = sextract64(r2, 0, 32);
+    int64_t t3 = sextract64(r3, 0, 32);
+    int64_t mul, ret;
+
+    if ((t2 == -0x8000ll) && (t3 == -0x8000ll) && (n == 1)) {
+        mul = 0x7fffffff;
+    } else {
+        mul = (t2 * t3) << n;
+    }
+
+    ret = t1 - mul + 0x8000;
+
+    env->PSW_USB_AV = ret ^ ret * 2u;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    if (ret > 0x7fffffffll) {
+        env->PSW_USB_V = (1 << 31);
+        env->PSW_USB_SV |= env->PSW_USB_V;
+        ret = INT32_MAX;
+    } else if (ret < -0x80000000ll) {
+        env->PSW_USB_V = (1 << 31);
+        env->PSW_USB_SV |= env->PSW_USB_V;
+        ret = INT32_MIN;
+    } else {
+        env->PSW_USB_V = 0;
+    }
+    return ret & 0xffff0000ll;
+}
+
+uint32_t helper_abs_b(CPUTriCoreState *env, target_ulong arg)
+{
+    int32_t b, i;
+    int32_t ovf = 0;
+    int32_t avf = 0;
+    int32_t ret = 0;
+
+    for (i = 0; i < 4; i++) {
+        b = sextract32(arg, i * 8, 8);
+        b = (b >= 0) ? b : (0 - b);
+        ovf |= (b > 0x7F) || (b < -0x80);
+        avf |= b ^ b * 2u;
+        ret |= (b & 0xff) << (i * 8);
+    }
+
+    env->PSW_USB_V = ovf << 31;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = avf << 24;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return ret;
+}
+
+uint32_t helper_abs_h(CPUTriCoreState *env, target_ulong arg)
+{
+    int32_t h, i;
+    int32_t ovf = 0;
+    int32_t avf = 0;
+    int32_t ret = 0;
+
+    for (i = 0; i < 2; i++) {
+        h = sextract32(arg, i * 16, 16);
+        h = (h >= 0) ? h : (0 - h);
+        ovf |= (h > 0x7FFF) || (h < -0x8000);
+        avf |= h ^ h * 2u;
+        ret |= (h & 0xffff) << (i * 16);
+    }
+
+    env->PSW_USB_V = ovf << 31;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = avf << 16;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return ret;
+}
+
+uint32_t helper_absdif_b(CPUTriCoreState *env, target_ulong r1, target_ulong r2)
+{
+    int32_t b, i;
+    int32_t extr_r2;
+    int32_t ovf = 0;
+    int32_t avf = 0;
+    int32_t ret = 0;
+
+    for (i = 0; i < 4; i++) {
+        extr_r2 = sextract32(r2, i * 8, 8);
+        b = sextract32(r1, i * 8, 8);
+        b = (b > extr_r2) ? (b - extr_r2) : (extr_r2 - b);
+        ovf |= (b > 0x7F) || (b < -0x80);
+        avf |= b ^ b * 2u;
+        ret |= (b & 0xff) << (i * 8);
+    }
+
+    env->PSW_USB_V = ovf << 31;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = avf << 24;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+    return ret;
+}
+
+uint32_t helper_absdif_h(CPUTriCoreState *env, target_ulong r1, target_ulong r2)
+{
+    int32_t h, i;
+    int32_t extr_r2;
+    int32_t ovf = 0;
+    int32_t avf = 0;
+    int32_t ret = 0;
+
+    for (i = 0; i < 2; i++) {
+        extr_r2 = sextract32(r2, i * 16, 16);
+        h = sextract32(r1, i * 16, 16);
+        h = (h > extr_r2) ? (h - extr_r2) : (extr_r2 - h);
+        ovf |= (h > 0x7FFF) || (h < -0x8000);
+        avf |= h ^ h * 2u;
+        ret |= (h & 0xffff) << (i * 16);
+    }
+
+    env->PSW_USB_V = ovf << 31;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = avf << 16;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return ret;
+}
+
+uint32_t helper_addr_h(CPUTriCoreState *env, uint64_t r1, uint32_t r2_l,
+                       uint32_t r2_h)
+{
+    int64_t mul_res0 = sextract64(r1, 0, 32);
+    int64_t mul_res1 = sextract64(r1, 32, 32);
+    int64_t r2_low = sextract64(r2_l, 0, 32);
+    int64_t r2_high = sextract64(r2_h, 0, 32);
+    int64_t result0, result1;
+    uint32_t ovf0, ovf1;
+    uint32_t avf0, avf1;
+
+    ovf0 = ovf1 = 0;
+
+    result0 = r2_low + mul_res0 + 0x8000;
+    result1 = r2_high + mul_res1 + 0x8000;
+
+    if ((result0 > INT32_MAX) || (result0 < INT32_MIN)) {
+        ovf0 = (1 << 31);
+    }
+
+    if ((result1 > INT32_MAX) || (result1 < INT32_MIN)) {
+        ovf1 = (1 << 31);
+    }
+
+    env->PSW_USB_V = ovf0 | ovf1;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+
+    avf0 = result0 * 2u;
+    avf0 = result0 ^ avf0;
+    avf1 = result1 * 2u;
+    avf1 = result1 ^ avf1;
+
+    env->PSW_USB_AV = avf0 | avf1;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return (result1 & 0xffff0000ULL) | ((result0 >> 16) & 0xffffULL);
+}
+
+uint32_t helper_addsur_h(CPUTriCoreState *env, uint64_t r1, uint32_t r2_l,
+                         uint32_t r2_h)
+{
+    int64_t mul_res0 = sextract64(r1, 0, 32);
+    int64_t mul_res1 = sextract64(r1, 32, 32);
+    int64_t r2_low = sextract64(r2_l, 0, 32);
+    int64_t r2_high = sextract64(r2_h, 0, 32);
+    int64_t result0, result1;
+    uint32_t ovf0, ovf1;
+    uint32_t avf0, avf1;
+
+    ovf0 = ovf1 = 0;
+
+    result0 = r2_low - mul_res0 + 0x8000;
+    result1 = r2_high + mul_res1 + 0x8000;
+
+    if ((result0 > INT32_MAX) || (result0 < INT32_MIN)) {
+        ovf0 = (1 << 31);
+    }
+
+    if ((result1 > INT32_MAX) || (result1 < INT32_MIN)) {
+        ovf1 = (1 << 31);
+    }
+
+    env->PSW_USB_V = ovf0 | ovf1;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+
+    avf0 = result0 * 2u;
+    avf0 = result0 ^ avf0;
+    avf1 = result1 * 2u;
+    avf1 = result1 ^ avf1;
+
+    env->PSW_USB_AV = avf0 | avf1;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return (result1 & 0xffff0000ULL) | ((result0 >> 16) & 0xffffULL);
+}
+
+uint32_t helper_maddr_q(CPUTriCoreState *env, uint32_t r1, uint32_t r2,
+                        uint32_t r3, uint32_t n)
+{
+    int64_t t1 = sextract64(r1, 0, 32);
+    int64_t t2 = sextract64(r2, 0, 32);
+    int64_t t3 = sextract64(r3, 0, 32);
+    int64_t mul, ret;
+
+    if ((t2 == -0x8000ll) && (t3 == -0x8000ll) && (n == 1)) {
+        mul = 0x7fffffff;
+    } else {
+        mul = (t2 * t3) << n;
+    }
+
+    ret = t1 + mul + 0x8000;
+
+    if ((ret > 0x7fffffffll) || (ret < -0x80000000ll)) {
+        env->PSW_USB_V = (1 << 31);
+        env->PSW_USB_SV |= env->PSW_USB_V;
+    } else {
+        env->PSW_USB_V = 0;
+    }
+    env->PSW_USB_AV = ret ^ ret * 2u;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return ret & 0xffff0000ll;
+}
+
+uint32_t helper_add_b(CPUTriCoreState *env, target_ulong r1, target_ulong r2)
+{
+    int32_t b, i;
+    int32_t extr_r1, extr_r2;
+    int32_t ovf = 0;
+    int32_t avf = 0;
+    uint32_t ret = 0;
+
+    for (i = 0; i < 4; i++) {
+        extr_r1 = sextract32(r1, i * 8, 8);
+        extr_r2 = sextract32(r2, i * 8, 8);
+
+        b = extr_r1 + extr_r2;
+        ovf |= ((b > 0x7f) || (b < -0x80));
+        avf |= b ^ b * 2u;
+        ret |= ((b & 0xff) << (i*8));
+    }
+
+    env->PSW_USB_V = (ovf << 31);
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = avf << 24;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return ret;
+}
+
+uint32_t helper_add_h(CPUTriCoreState *env, target_ulong r1, target_ulong r2)
+{
+    int32_t h, i;
+    int32_t extr_r1, extr_r2;
+    int32_t ovf = 0;
+    int32_t avf = 0;
+    int32_t ret = 0;
+
+    for (i = 0; i < 2; i++) {
+        extr_r1 = sextract32(r1, i * 16, 16);
+        extr_r2 = sextract32(r2, i * 16, 16);
+        h = extr_r1 + extr_r2;
+        ovf |= ((h > 0x7fff) || (h < -0x8000));
+        avf |= h ^ h * 2u;
+        ret |= (h & 0xffff) << (i * 16);
+    }
+
+    env->PSW_USB_V = (ovf << 31);
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = (avf << 16);
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return ret;
+}
+
+uint32_t helper_subr_h(CPUTriCoreState *env, uint64_t r1, uint32_t r2_l,
+                       uint32_t r2_h)
+{
+    int64_t mul_res0 = sextract64(r1, 0, 32);
+    int64_t mul_res1 = sextract64(r1, 32, 32);
+    int64_t r2_low = sextract64(r2_l, 0, 32);
+    int64_t r2_high = sextract64(r2_h, 0, 32);
+    int64_t result0, result1;
+    uint32_t ovf0, ovf1;
+    uint32_t avf0, avf1;
+
+    ovf0 = ovf1 = 0;
+
+    result0 = r2_low - mul_res0 + 0x8000;
+    result1 = r2_high - mul_res1 + 0x8000;
+
+    if ((result0 > INT32_MAX) || (result0 < INT32_MIN)) {
+        ovf0 = (1 << 31);
+    }
+
+    if ((result1 > INT32_MAX) || (result1 < INT32_MIN)) {
+        ovf1 = (1 << 31);
+    }
+
+    env->PSW_USB_V = ovf0 | ovf1;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+
+    avf0 = result0 * 2u;
+    avf0 = result0 ^ avf0;
+    avf1 = result1 * 2u;
+    avf1 = result1 ^ avf1;
+
+    env->PSW_USB_AV = avf0 | avf1;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return (result1 & 0xffff0000ULL) | ((result0 >> 16) & 0xffffULL);
+}
+
+uint32_t helper_subadr_h(CPUTriCoreState *env, uint64_t r1, uint32_t r2_l,
+                         uint32_t r2_h)
+{
+    int64_t mul_res0 = sextract64(r1, 0, 32);
+    int64_t mul_res1 = sextract64(r1, 32, 32);
+    int64_t r2_low = sextract64(r2_l, 0, 32);
+    int64_t r2_high = sextract64(r2_h, 0, 32);
+    int64_t result0, result1;
+    uint32_t ovf0, ovf1;
+    uint32_t avf0, avf1;
+
+    ovf0 = ovf1 = 0;
+
+    result0 = r2_low + mul_res0 + 0x8000;
+    result1 = r2_high - mul_res1 + 0x8000;
+
+    if ((result0 > INT32_MAX) || (result0 < INT32_MIN)) {
+        ovf0 = (1 << 31);
+    }
+
+    if ((result1 > INT32_MAX) || (result1 < INT32_MIN)) {
+        ovf1 = (1 << 31);
+    }
+
+    env->PSW_USB_V = ovf0 | ovf1;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+
+    avf0 = result0 * 2u;
+    avf0 = result0 ^ avf0;
+    avf1 = result1 * 2u;
+    avf1 = result1 ^ avf1;
+
+    env->PSW_USB_AV = avf0 | avf1;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return (result1 & 0xffff0000ULL) | ((result0 >> 16) & 0xffffULL);
+}
+
+uint32_t helper_msubr_q(CPUTriCoreState *env, uint32_t r1, uint32_t r2,
+                        uint32_t r3, uint32_t n)
+{
+    int64_t t1 = sextract64(r1, 0, 32);
+    int64_t t2 = sextract64(r2, 0, 32);
+    int64_t t3 = sextract64(r3, 0, 32);
+    int64_t mul, ret;
+
+    if ((t2 == -0x8000ll) && (t3 == -0x8000ll) && (n == 1)) {
+        mul = 0x7fffffff;
+    } else {
+        mul = (t2 * t3) << n;
+    }
+
+    ret = t1 - mul + 0x8000;
+
+    if ((ret > 0x7fffffffll) || (ret < -0x80000000ll)) {
+        env->PSW_USB_V = (1 << 31);
+        env->PSW_USB_SV |= env->PSW_USB_V;
+    } else {
+        env->PSW_USB_V = 0;
+    }
+    env->PSW_USB_AV = ret ^ ret * 2u;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return ret & 0xffff0000ll;
+}
+
+uint32_t helper_sub_b(CPUTriCoreState *env, target_ulong r1, target_ulong r2)
+{
+    int32_t b, i;
+    int32_t extr_r1, extr_r2;
+    int32_t ovf = 0;
+    int32_t avf = 0;
+    uint32_t ret = 0;
+
+    for (i = 0; i < 4; i++) {
+        extr_r1 = sextract32(r1, i * 8, 8);
+        extr_r2 = sextract32(r2, i * 8, 8);
+
+        b = extr_r1 - extr_r2;
+        ovf |= ((b > 0x7f) || (b < -0x80));
+        avf |= b ^ b * 2u;
+        ret |= ((b & 0xff) << (i*8));
+    }
+
+    env->PSW_USB_V = (ovf << 31);
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = avf << 24;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return ret;
+}
+
+uint32_t helper_sub_h(CPUTriCoreState *env, target_ulong r1, target_ulong r2)
+{
+    int32_t h, i;
+    int32_t extr_r1, extr_r2;
+    int32_t ovf = 0;
+    int32_t avf = 0;
+    int32_t ret = 0;
+
+    for (i = 0; i < 2; i++) {
+        extr_r1 = sextract32(r1, i * 16, 16);
+        extr_r2 = sextract32(r2, i * 16, 16);
+        h = extr_r1 - extr_r2;
+        ovf |= ((h > 0x7fff) || (h < -0x8000));
+        avf |= h ^ h * 2u;
+        ret |= (h & 0xffff) << (i * 16);
+    }
+
+    env->PSW_USB_V = (ovf << 31);
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = avf << 16;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return ret;
+}
+
+uint32_t helper_eq_b(target_ulong r1, target_ulong r2)
+{
+    int32_t ret;
+    int32_t i, msk;
+
+    ret = 0;
+    msk = 0xff;
+    for (i = 0; i < 4; i++) {
+        if ((r1 & msk) == (r2 & msk)) {
+            ret |= msk;
+        }
+        msk = msk << 8;
+    }
+
+    return ret;
+}
+
+uint32_t helper_eq_h(target_ulong r1, target_ulong r2)
+{
+    int32_t ret = 0;
+
+    if ((r1 & 0xffff) == (r2 & 0xffff)) {
+        ret = 0xffff;
+    }
+
+    if ((r1 & 0xffff0000) == (r2 & 0xffff0000)) {
+        ret |= 0xffff0000;
+    }
+
+    return ret;
+}
+
+uint32_t helper_eqany_b(target_ulong r1, target_ulong r2)
+{
+    int32_t i;
+    uint32_t ret = 0;
+
+    for (i = 0; i < 4; i++) {
+        ret |= (sextract32(r1,  i * 8, 8) == sextract32(r2,  i * 8, 8));
+    }
+
+    return ret;
+}
+
+uint32_t helper_eqany_h(target_ulong r1, target_ulong r2)
+{
+    uint32_t ret;
+
+    ret = (sextract32(r1, 0, 16) == sextract32(r2,  0, 16));
+    ret |= (sextract32(r1, 16, 16) == sextract32(r2,  16, 16));
+
+    return ret;
+}
+
+uint32_t helper_lt_b(target_ulong r1, target_ulong r2)
+{
+    int32_t i;
+    uint32_t ret = 0;
+
+    for (i = 0; i < 4; i++) {
+        if (sextract32(r1,  i * 8, 8) < sextract32(r2,  i * 8, 8)) {
+            ret |= (0xff << (i * 8));
+        }
+    }
+
+    return ret;
+}
+
+uint32_t helper_lt_bu(target_ulong r1, target_ulong r2)
+{
+    int32_t i;
+    uint32_t ret = 0;
+
+    for (i = 0; i < 4; i++) {
+        if (extract32(r1,  i * 8, 8) < extract32(r2,  i * 8, 8)) {
+            ret |= (0xff << (i * 8));
+        }
+    }
+
+    return ret;
+}
+
+uint32_t helper_lt_h(target_ulong r1, target_ulong r2)
+{
+    uint32_t ret = 0;
+
+    if (sextract32(r1,  0, 16) < sextract32(r2,  0, 16)) {
+        ret |= 0xffff;
+    }
+
+    if (sextract32(r1,  16, 16) < sextract32(r2,  16, 16)) {
+        ret |= 0xffff0000;
+    }
+
+    return ret;
+}
+
+uint32_t helper_lt_hu(target_ulong r1, target_ulong r2)
+{
+    uint32_t ret = 0;
+
+    if (extract32(r1,  0, 16) < extract32(r2,  0, 16)) {
+        ret |= 0xffff;
+    }
+
+    if (extract32(r1,  16, 16) < extract32(r2,  16, 16)) {
+        ret |= 0xffff0000;
+    }
+
+    return ret;
+}
+
+#define EXTREMA_H_B(name, op)                                 \
+uint32_t helper_##name ##_b(target_ulong r1, target_ulong r2) \
+{                                                             \
+    int32_t i, extr_r1, extr_r2;                              \
+    uint32_t ret = 0;                                         \
+                                                              \
+    for (i = 0; i < 4; i++) {                                 \
+        extr_r1 = sextract32(r1, i * 8, 8);                   \
+        extr_r2 = sextract32(r2, i * 8, 8);                   \
+        extr_r1 = (extr_r1 op extr_r2) ? extr_r1 : extr_r2;   \
+        ret |= (extr_r1 & 0xff) << (i * 8);                   \
+    }                                                         \
+    return ret;                                               \
+}                                                             \
+                                                              \
+uint32_t helper_##name ##_bu(target_ulong r1, target_ulong r2)\
+{                                                             \
+    int32_t i;                                                \
+    uint32_t extr_r1, extr_r2;                                \
+    uint32_t ret = 0;                                         \
+                                                              \
+    for (i = 0; i < 4; i++) {                                 \
+        extr_r1 = extract32(r1, i * 8, 8);                    \
+        extr_r2 = extract32(r2, i * 8, 8);                    \
+        extr_r1 = (extr_r1 op extr_r2) ? extr_r1 : extr_r2;   \
+        ret |= (extr_r1 & 0xff) << (i * 8);                   \
+    }                                                         \
+    return ret;                                               \
+}                                                             \
+                                                              \
+uint32_t helper_##name ##_h(target_ulong r1, target_ulong r2) \
+{                                                             \
+    int32_t extr_r1, extr_r2;                                 \
+    uint32_t ret = 0;                                         \
+                                                              \
+    extr_r1 = sextract32(r1, 0, 16);                          \
+    extr_r2 = sextract32(r2, 0, 16);                          \
+    ret = (extr_r1 op extr_r2) ? extr_r1 : extr_r2;           \
+    ret = ret & 0xffff;                                       \
+                                                              \
+    extr_r1 = sextract32(r1, 16, 16);                         \
+    extr_r2 = sextract32(r2, 16, 16);                         \
+    extr_r1 = (extr_r1 op extr_r2) ? extr_r1 : extr_r2;       \
+    ret |= extr_r1 << 16;                                     \
+                                                              \
+    return ret;                                               \
+}                                                             \
+                                                              \
+uint32_t helper_##name ##_hu(target_ulong r1, target_ulong r2)\
+{                                                             \
+    uint32_t extr_r1, extr_r2;                                \
+    uint32_t ret = 0;                                         \
+                                                              \
+    extr_r1 = extract32(r1, 0, 16);                           \
+    extr_r2 = extract32(r2, 0, 16);                           \
+    ret = (extr_r1 op extr_r2) ? extr_r1 : extr_r2;           \
+    ret = ret & 0xffff;                                       \
+                                                              \
+    extr_r1 = extract32(r1, 16, 16);                          \
+    extr_r2 = extract32(r2, 16, 16);                          \
+    extr_r1 = (extr_r1 op extr_r2) ? extr_r1 : extr_r2;       \
+    ret |= extr_r1 << (16);                                   \
+                                                              \
+    return ret;                                               \
+}                                                             \
+                                                              \
+uint64_t helper_ix##name(uint64_t r1, uint32_t r2)            \
+{                                                             \
+    int64_t r2l, r2h, r1hl;                                   \
+    uint64_t ret = 0;                                         \
+                                                              \
+    ret = ((r1 + 2) & 0xffff);                                \
+    r2l = sextract64(r2, 0, 16);                              \
+    r2h = sextract64(r2, 16, 16);                             \
+    r1hl = sextract64(r1, 32, 16);                            \
+                                                              \
+    if ((r2l op ## = r2h) && (r2l op r1hl)) {                 \
+        ret |= (r2l & 0xffff) << 32;                          \
+        ret |= extract64(r1, 0, 16) << 16;                    \
+    } else if ((r2h op r2l) && (r2h op r1hl)) {               \
+        ret |= extract64(r2, 16, 16) << 32;                   \
+        ret |= extract64(r1 + 1, 0, 16) << 16;                \
+    } else {                                                  \
+        ret |= r1 & 0xffffffff0000ull;                        \
+    }                                                         \
+    return ret;                                               \
+}                                                             \
+                                                              \
+uint64_t helper_ix##name ##_u(uint64_t r1, uint32_t r2)       \
+{                                                             \
+    int64_t r2l, r2h, r1hl;                                   \
+    uint64_t ret = 0;                                         \
+                                                              \
+    ret = ((r1 + 2) & 0xffff);                                \
+    r2l = extract64(r2, 0, 16);                               \
+    r2h = extract64(r2, 16, 16);                              \
+    r1hl = extract64(r1, 32, 16);                             \
+                                                              \
+    if ((r2l op ## = r2h) && (r2l op r1hl)) {                 \
+        ret |= (r2l & 0xffff) << 32;                          \
+        ret |= extract64(r1, 0, 16) << 16;                    \
+    } else if ((r2h op r2l) && (r2h op r1hl)) {               \
+        ret |= extract64(r2, 16, 16) << 32;                   \
+        ret |= extract64(r1 + 1, 0, 16) << 16;                \
+    } else {                                                  \
+        ret |= r1 & 0xffffffff0000ull;                        \
+    }                                                         \
+    return ret;                                               \
+}
+
+EXTREMA_H_B(max, >)
+EXTREMA_H_B(min, <)
+
+#undef EXTREMA_H_B
+
+uint32_t helper_clo(target_ulong r1)
+{
+    return clo32(r1);
+}
+
+uint32_t helper_clo_h(target_ulong r1)
+{
+    uint32_t ret_hw0 = extract32(r1, 0, 16);
+    uint32_t ret_hw1 = extract32(r1, 16, 16);
+
+    ret_hw0 = clo32(ret_hw0 << 16);
+    ret_hw1 = clo32(ret_hw1 << 16);
+
+    if (ret_hw0 > 16) {
+        ret_hw0 = 16;
+    }
+    if (ret_hw1 > 16) {
+        ret_hw1 = 16;
+    }
+
+    return ret_hw0 | (ret_hw1 << 16);
+}
+
+uint32_t helper_clz(target_ulong r1)
+{
+    return clz32(r1);
+}
+
+uint32_t helper_clz_h(target_ulong r1)
+{
+    uint32_t ret_hw0 = extract32(r1, 0, 16);
+    uint32_t ret_hw1 = extract32(r1, 16, 16);
+
+    ret_hw0 = clz32(ret_hw0 << 16);
+    ret_hw1 = clz32(ret_hw1 << 16);
+
+    if (ret_hw0 > 16) {
+        ret_hw0 = 16;
+    }
+    if (ret_hw1 > 16) {
+        ret_hw1 = 16;
+    }
+
+    return ret_hw0 | (ret_hw1 << 16);
+}
+
+uint32_t helper_cls(target_ulong r1)
+{
+    return clrsb32(r1);
+}
+
+uint32_t helper_cls_h(target_ulong r1)
+{
+    uint32_t ret_hw0 = extract32(r1, 0, 16);
+    uint32_t ret_hw1 = extract32(r1, 16, 16);
+
+    ret_hw0 = clrsb32(ret_hw0 << 16);
+    ret_hw1 = clrsb32(ret_hw1 << 16);
+
+    if (ret_hw0 > 15) {
+        ret_hw0 = 15;
+    }
+    if (ret_hw1 > 15) {
+        ret_hw1 = 15;
+    }
+
+    return ret_hw0 | (ret_hw1 << 16);
+}
+
+uint32_t helper_sh(target_ulong r1, target_ulong r2)
+{
+    int32_t shift_count = sextract32(r2, 0, 6);
+
+    if (shift_count == -32) {
+        return 0;
+    } else if (shift_count < 0) {
+        return r1 >> -shift_count;
+    } else {
+        return r1 << shift_count;
+    }
+}
+
+uint32_t helper_sh_h(target_ulong r1, target_ulong r2)
+{
+    int32_t ret_hw0, ret_hw1;
+    int32_t shift_count;
+
+    shift_count = sextract32(r2, 0, 5);
+
+    if (shift_count == -16) {
+        return 0;
+    } else if (shift_count < 0) {
+        ret_hw0 = extract32(r1, 0, 16) >> -shift_count;
+        ret_hw1 = extract32(r1, 16, 16) >> -shift_count;
+        return (ret_hw0 & 0xffff) | (ret_hw1 << 16);
+    } else {
+        ret_hw0 = extract32(r1, 0, 16) << shift_count;
+        ret_hw1 = extract32(r1, 16, 16) << shift_count;
+        return (ret_hw0 & 0xffff) | (ret_hw1 << 16);
+    }
+}
+
+uint32_t helper_sha(CPUTriCoreState *env, target_ulong r1, target_ulong r2)
+{
+    int32_t shift_count;
+    int64_t result, t1;
+    uint32_t ret;
+
+    shift_count = sextract32(r2, 0, 6);
+    t1 = sextract32(r1, 0, 32);
+
+    if (shift_count == 0) {
+        env->PSW_USB_C = env->PSW_USB_V = 0;
+        ret = r1;
+    } else if (shift_count == -32) {
+        env->PSW_USB_C = r1;
+        env->PSW_USB_V = 0;
+        ret = t1 >> 31;
+    } else if (shift_count > 0) {
+        result = t1 << shift_count;
+        /* calc carry */
+        env->PSW_USB_C = ((result & 0xffffffff00000000ULL) != 0);
+        /* calc v */
+        env->PSW_USB_V = (((result > 0x7fffffffLL) ||
+                           (result < -0x80000000LL)) << 31);
+        /* calc sv */
+        env->PSW_USB_SV |= env->PSW_USB_V;
+        ret = (uint32_t)result;
+    } else {
+        env->PSW_USB_V = 0;
+        env->PSW_USB_C = (r1 & ((1 << -shift_count) - 1));
+        ret = t1 >> -shift_count;
+    }
+
+    env->PSW_USB_AV = ret ^ ret * 2u;
+    env->PSW_USB_SAV |= env->PSW_USB_AV;
+
+    return ret;
+}
+
+uint32_t helper_sha_h(target_ulong r1, target_ulong r2)
+{
+    int32_t shift_count;
+    int32_t ret_hw0, ret_hw1;
+
+    shift_count = sextract32(r2, 0, 5);
+
+    if (shift_count == 0) {
+        return r1;
+    } else if (shift_count < 0) {
+        ret_hw0 = sextract32(r1, 0, 16) >> -shift_count;
+        ret_hw1 = sextract32(r1, 16, 16) >> -shift_count;
+        return (ret_hw0 & 0xffff) | (ret_hw1 << 16);
+    } else {
+        ret_hw0 = sextract32(r1, 0, 16) << shift_count;
+        ret_hw1 = sextract32(r1, 16, 16) << shift_count;
+        return (ret_hw0 & 0xffff) | (ret_hw1 << 16);
+    }
+}
+
+uint32_t helper_bmerge(target_ulong r1, target_ulong r2)
+{
+    uint32_t i, ret;
+
+    ret = 0;
+    for (i = 0; i < 16; i++) {
+        ret |= (r1 & 1) << (2 * i + 1);
+        ret |= (r2 & 1) << (2 * i);
+        r1 = r1 >> 1;
+        r2 = r2 >> 1;
+    }
+    return ret;
+}
+
+uint64_t helper_bsplit(uint32_t r1)
+{
+    int32_t i;
+    uint64_t ret;
+
+    ret = 0;
+    for (i = 0; i < 32; i = i + 2) {
+        /* even */
+        ret |= (r1 & 1) << (i/2);
+        r1 = r1 >> 1;
+        /* odd */
+        ret |= (uint64_t)(r1 & 1) << (i/2 + 32);
+        r1 = r1 >> 1;
+    }
+    return ret;
+}
+
+uint32_t helper_parity(target_ulong r1)
+{
+    uint32_t ret;
+    uint32_t nOnes, i;
+
+    ret = 0;
+    nOnes = 0;
+    for (i = 0; i < 8; i++) {
+        ret ^= (r1 & 1);
+        r1 = r1 >> 1;
+    }
+    /* second byte */
+    nOnes = 0;
+    for (i = 0; i < 8; i++) {
+        nOnes ^= (r1 & 1);
+        r1 = r1 >> 1;
+    }
+    ret |= nOnes << 8;
+    /* third byte */
+    nOnes = 0;
+    for (i = 0; i < 8; i++) {
+        nOnes ^= (r1 & 1);
+        r1 = r1 >> 1;
+    }
+    ret |= nOnes << 16;
+    /* fourth byte */
+    nOnes = 0;
+    for (i = 0; i < 8; i++) {
+        nOnes ^= (r1 & 1);
+        r1 = r1 >> 1;
+    }
+    ret |= nOnes << 24;
+
+    return ret;
+}
+
+uint32_t helper_pack(uint32_t carry, uint32_t r1_low, uint32_t r1_high,
+                     target_ulong r2)
+{
+    uint32_t ret;
+    int32_t fp_exp, fp_frac, temp_exp, fp_exp_frac;
+    int32_t int_exp  = r1_high;
+    int32_t int_mant = r1_low;
+    uint32_t flag_rnd = (int_mant & (1 << 7)) && (
+                        (int_mant & (1 << 8)) ||
+                        (int_mant & 0x7f)     ||
+                        (carry != 0));
+    if (((int_mant & (1<<31)) == 0) && (int_exp == 255)) {
+        fp_exp = 255;
+        fp_frac = extract32(int_mant, 8, 23);
+    } else if ((int_mant & (1<<31)) && (int_exp >= 127)) {
+        fp_exp  = 255;
+        fp_frac = 0;
+    } else if ((int_mant & (1<<31)) && (int_exp <= -128)) {
+        fp_exp  = 0;
+        fp_frac = 0;
+    } else if (int_mant == 0) {
+        fp_exp  = 0;
+        fp_frac = 0;
+    } else {
+        if (((int_mant & (1 << 31)) == 0)) {
+            temp_exp = 0;
+        } else {
+            temp_exp = int_exp + 128;
+        }
+        fp_exp_frac = (((temp_exp & 0xff) << 23) |
+                      extract32(int_mant, 8, 23))
+                      + flag_rnd;
+        fp_exp  = extract32(fp_exp_frac, 23, 8);
+        fp_frac = extract32(fp_exp_frac, 0, 23);
+    }
+    ret = r2 & (1 << 31);
+    ret = ret + (fp_exp << 23);
+    ret = ret + (fp_frac & 0x7fffff);
+
+    return ret;
+}
+
+uint64_t helper_unpack(target_ulong arg1)
+{
+    int32_t fp_exp  = extract32(arg1, 23, 8);
+    int32_t fp_frac = extract32(arg1, 0, 23);
+    uint64_t ret;
+    int32_t int_exp, int_mant;
+
+    if (fp_exp == 255) {
+        int_exp = 255;
+        int_mant = (fp_frac << 7);
+    } else if ((fp_exp == 0) && (fp_frac == 0)) {
+        int_exp  = -127;
+        int_mant = 0;
+    } else if ((fp_exp == 0) && (fp_frac != 0)) {
+        int_exp  = -126;
+        int_mant = (fp_frac << 7);
+    } else {
+        int_exp  = fp_exp - 127;
+        int_mant = (fp_frac << 7);
+        int_mant |= (1 << 30);
+    }
+    ret = int_exp;
+    ret = ret << 32;
+    ret |= int_mant;
+
+    return ret;
+}
+
+uint64_t helper_dvinit_b_13(CPUTriCoreState *env, uint32_t r1, uint32_t r2)
+{
+    uint64_t ret;
+    int32_t abs_sig_dividend, abs_divisor;
+
+    ret = sextract32(r1, 0, 32);
+    ret = ret << 24;
+    if (!((r1 & 0x80000000) == (r2 & 0x80000000))) {
+        ret |= 0xffffff;
+    }
+
+    abs_sig_dividend = abs((int32_t)r1) >> 8;
+    abs_divisor = abs((int32_t)r2);
+    /* calc overflow
+       ofv if (a/b >= 255) <=> (a/255 >= b) */
+    env->PSW_USB_V = (abs_sig_dividend >= abs_divisor) << 31;
+    env->PSW_USB_V = env->PSW_USB_V << 31;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = 0;
+
+    return ret;
+}
+
+uint64_t helper_dvinit_b_131(CPUTriCoreState *env, uint32_t r1, uint32_t r2)
+{
+    uint64_t ret = sextract32(r1, 0, 32);
+
+    ret = ret << 24;
+    if (!((r1 & 0x80000000) == (r2 & 0x80000000))) {
+        ret |= 0xffffff;
+    }
+    /* calc overflow */
+    env->PSW_USB_V = ((r2 == 0) || ((r2 == 0xffffffff) && (r1 == 0xffffff80)));
+    env->PSW_USB_V = env->PSW_USB_V << 31;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = 0;
+
+    return ret;
+}
+
+uint64_t helper_dvinit_h_13(CPUTriCoreState *env, uint32_t r1, uint32_t r2)
+{
+    uint64_t ret;
+    int32_t abs_sig_dividend, abs_divisor;
+
+    ret = sextract32(r1, 0, 32);
+    ret = ret << 16;
+    if (!((r1 & 0x80000000) == (r2 & 0x80000000))) {
+        ret |= 0xffff;
+    }
+
+    abs_sig_dividend = abs((int32_t)r1) >> 16;
+    abs_divisor = abs((int32_t)r2);
+    /* calc overflow
+       ofv if (a/b >= 0xffff) <=> (a/0xffff >= b) */
+    env->PSW_USB_V = (abs_sig_dividend >= abs_divisor) << 31;
+    env->PSW_USB_V = env->PSW_USB_V << 31;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = 0;
+
+    return ret;
+}
+
+uint64_t helper_dvinit_h_131(CPUTriCoreState *env, uint32_t r1, uint32_t r2)
+{
+    uint64_t ret = sextract32(r1, 0, 32);
+
+    ret = ret << 16;
+    if (!((r1 & 0x80000000) == (r2 & 0x80000000))) {
+        ret |= 0xffff;
+    }
+    /* calc overflow */
+    env->PSW_USB_V = ((r2 == 0) || ((r2 == 0xffffffff) && (r1 == 0xffff8000)));
+    env->PSW_USB_V = env->PSW_USB_V << 31;
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = 0;
+
+    return ret;
+}
+
+uint64_t helper_dvadj(uint64_t r1, uint32_t r2)
+{
+    int32_t x_sign = (r1 >> 63);
+    int32_t q_sign = x_sign ^ (r2 >> 31);
+    int32_t eq_pos = x_sign & ((r1 >> 32) == r2);
+    int32_t eq_neg = x_sign & ((r1 >> 32) == -r2);
+    uint32_t quotient;
+    uint64_t ret, remainder;
+
+    if ((q_sign & ~eq_neg) | eq_pos) {
+        quotient = (r1 + 1) & 0xffffffff;
+    } else {
+        quotient = r1 & 0xffffffff;
+    }
+
+    if (eq_pos | eq_neg) {
+        remainder = 0;
+    } else {
+        remainder = (r1 & 0xffffffff00000000ull);
+    }
+    ret = remainder|quotient;
+    return ret;
+}
+
+uint64_t helper_dvstep(uint64_t r1, uint32_t r2)
+{
+    int32_t dividend_sign = extract64(r1, 63, 1);
+    int32_t divisor_sign = extract32(r2, 31, 1);
+    int32_t quotient_sign = (dividend_sign != divisor_sign);
+    int32_t addend, dividend_quotient, remainder;
+    int32_t i, temp;
+
+    if (quotient_sign) {
+        addend = r2;
+    } else {
+        addend = -r2;
+    }
+    dividend_quotient = (int32_t)r1;
+    remainder = (int32_t)(r1 >> 32);
+
+    for (i = 0; i < 8; i++) {
+        remainder = (remainder << 1) | extract32(dividend_quotient, 31, 1);
+        dividend_quotient <<= 1;
+        temp = remainder + addend;
+        if ((temp < 0) == dividend_sign) {
+            remainder = temp;
+        }
+        if (((temp < 0) == dividend_sign)) {
+            dividend_quotient = dividend_quotient | !quotient_sign;
+        } else {
+            dividend_quotient = dividend_quotient | quotient_sign;
+        }
+    }
+    return ((uint64_t)remainder << 32) | (uint32_t)dividend_quotient;
+}
+
+uint64_t helper_dvstep_u(uint64_t r1, uint32_t r2)
+{
+    int32_t dividend_quotient = extract64(r1, 0, 32);
+    int64_t remainder = extract64(r1, 32, 32);
+    int32_t i;
+    int64_t temp;
+    for (i = 0; i < 8; i++) {
+        remainder = (remainder << 1) | extract32(dividend_quotient, 31, 1);
+        dividend_quotient <<= 1;
+        temp = (remainder & 0xffffffff) - r2;
+        if (temp >= 0) {
+            remainder = temp;
+        }
+        dividend_quotient = dividend_quotient | !(temp < 0);
+    }
+    return ((uint64_t)remainder << 32) | (uint32_t)dividend_quotient;
+}
+
+uint64_t helper_divide(CPUTriCoreState *env, uint32_t r1, uint32_t r2)
+{
+    int32_t quotient, remainder;
+    int32_t dividend = (int32_t)r1;
+    int32_t divisor = (int32_t)r2;
+
+    if (divisor == 0) {
+        if (dividend >= 0) {
+            quotient = 0x7fffffff;
+            remainder = 0;
+        } else {
+            quotient = 0x80000000;
+            remainder = 0;
+        }
+        env->PSW_USB_V = (1 << 31);
+    } else if ((divisor == 0xffffffff) && (dividend == 0x80000000)) {
+        quotient = 0x7fffffff;
+        remainder = 0;
+        env->PSW_USB_V = (1 << 31);
+    } else {
+        remainder = dividend % divisor;
+        quotient = (dividend - remainder)/divisor;
+        env->PSW_USB_V = 0;
+    }
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = 0;
+    return ((uint64_t)remainder << 32) | (uint32_t)quotient;
+}
+
+uint64_t helper_divide_u(CPUTriCoreState *env, uint32_t r1, uint32_t r2)
+{
+    uint32_t quotient, remainder;
+    uint32_t dividend = r1;
+    uint32_t divisor = r2;
+
+    if (divisor == 0) {
+        quotient = 0xffffffff;
+        remainder = 0;
+        env->PSW_USB_V = (1 << 31);
+    } else {
+        remainder = dividend % divisor;
+        quotient = (dividend - remainder)/divisor;
+        env->PSW_USB_V = 0;
+    }
+    env->PSW_USB_SV |= env->PSW_USB_V;
+    env->PSW_USB_AV = 0;
+    return ((uint64_t)remainder << 32) | quotient;
+}
+
+uint64_t helper_mul_h(uint32_t arg00, uint32_t arg01,
+                      uint32_t arg10, uint32_t arg11, uint32_t n)
+{
+    uint64_t ret;
+    uint32_t result0, result1;
+
+    int32_t sc1 = ((arg00 & 0xffff) == 0x8000) &&
+                  ((arg10 & 0xffff) == 0x8000) && (n == 1);
+    int32_t sc0 = ((arg01 & 0xffff) == 0x8000) &&
+                  ((arg11 & 0xffff) == 0x8000) && (n == 1);
+    if (sc1) {
+        result1 = 0x7fffffff;
+    } else {
+        result1 = (((uint32_t)(arg00 * arg10)) << n);
+    }
+    if (sc0) {
+        result0 = 0x7fffffff;
+    } else {
+        result0 = (((uint32_t)(arg01 * arg11)) << n);
+    }
+    ret = (((uint64_t)result1 << 32)) | result0;
+    return ret;
+}
+
+uint64_t helper_mulm_h(uint32_t arg00, uint32_t arg01,
+                       uint32_t arg10, uint32_t arg11, uint32_t n)
+{
+    uint64_t ret;
+    int64_t result0, result1;
+
+    int32_t sc1 = ((arg00 & 0xffff) == 0x8000) &&
+                  ((arg10 & 0xffff) == 0x8000) && (n == 1);
+    int32_t sc0 = ((arg01 & 0xffff) == 0x8000) &&
+                  ((arg11 & 0xffff) == 0x8000) && (n == 1);
+
+    if (sc1) {
+        result1 = 0x7fffffff;
+    } else {
+        result1 = (((int32_t)arg00 * (int32_t)arg10) << n);
+    }
+    if (sc0) {
+        result0 = 0x7fffffff;
+    } else {
+        result0 = (((int32_t)arg01 * (int32_t)arg11) << n);
+    }
+    ret = (result1 + result0);
+    ret = ret << 16;
+    return ret;
+}
+uint32_t helper_mulr_h(uint32_t arg00, uint32_t arg01,
+                       uint32_t arg10, uint32_t arg11, uint32_t n)
+{
+    uint32_t result0, result1;
+
+    int32_t sc1 = ((arg00 & 0xffff) == 0x8000) &&
+                  ((arg10 & 0xffff) == 0x8000) && (n == 1);
+    int32_t sc0 = ((arg01 & 0xffff) == 0x8000) &&
+                  ((arg11 & 0xffff) == 0x8000) && (n == 1);
+
+    if (sc1) {
+        result1 = 0x7fffffff;
+    } else {
+        result1 = ((arg00 * arg10) << n) + 0x8000;
+    }
+    if (sc0) {
+        result0 = 0x7fffffff;
+    } else {
+        result0 = ((arg01 * arg11) << n) + 0x8000;
+    }
+    return (result1 & 0xffff0000) | (result0 >> 16);
+}
+
+uint32_t helper_crc32(uint32_t arg0, uint32_t arg1)
+{
+    uint8_t buf[4];
+    uint32_t ret;
+    stl_be_p(buf, arg0);
+
+    ret = crc32(arg1, buf, 4);
+    return ret;
+}
+
+/* context save area (CSA) related helpers */
+
+static int cdc_increment(target_ulong *psw)
+{
+    if ((*psw & MASK_PSW_CDC) == 0x7f) {
+        return 0;
+    }
+
+    (*psw)++;
+    /* check for overflow */
+    int lo = clo32((*psw & MASK_PSW_CDC) << (32 - 7));
+    int mask = (1u << (7 - lo)) - 1;
+    int count = *psw & mask;
+    if (count == 0) {
+        (*psw)--;
+        return 1;
+    }
+    return 0;
+}
+
+static int cdc_decrement(target_ulong *psw)
+{
+    if ((*psw & MASK_PSW_CDC) == 0x7f) {
+        return 0;
+    }
+    /* check for underflow */
+    int lo = clo32((*psw & MASK_PSW_CDC) << (32 - 7));
+    int mask = (1u << (7 - lo)) - 1;
+    int count = *psw & mask;
+    if (count == 0) {
+        return 1;
+    }
+    (*psw)--;
+    return 0;
+}
+
+static bool cdc_zero(target_ulong *psw)
+{
+    int cdc = *psw & MASK_PSW_CDC;
+    /* Returns TRUE if PSW.CDC.COUNT == 0 or if PSW.CDC ==
+       7'b1111111, otherwise returns FALSE. */
+    if (cdc == 0x7f) {
+        return true;
+    }
+    /* find CDC.COUNT */
+    int lo = clo32((*psw & MASK_PSW_CDC) << (32 - 7));
+    int mask = (1u << (7 - lo)) - 1;
+    int count = *psw & mask;
+    return count == 0;
+}
+
+static void save_context_upper(CPUTriCoreState *env, int ea)
+{
+    cpu_stl_data(env, ea, env->PCXI);
+    cpu_stl_data(env, ea+4, env->PSW);
+    cpu_stl_data(env, ea+8, env->gpr_a[10]);
+    cpu_stl_data(env, ea+12, env->gpr_a[11]);
+    cpu_stl_data(env, ea+16, env->gpr_d[8]);
+    cpu_stl_data(env, ea+20, env->gpr_d[9]);
+    cpu_stl_data(env, ea+24, env->gpr_d[10]);
+    cpu_stl_data(env, ea+28, env->gpr_d[11]);
+    cpu_stl_data(env, ea+32, env->gpr_a[12]);
+    cpu_stl_data(env, ea+36, env->gpr_a[13]);
+    cpu_stl_data(env, ea+40, env->gpr_a[14]);
+    cpu_stl_data(env, ea+44, env->gpr_a[15]);
+    cpu_stl_data(env, ea+48, env->gpr_d[12]);
+    cpu_stl_data(env, ea+52, env->gpr_d[13]);
+    cpu_stl_data(env, ea+56, env->gpr_d[14]);
+    cpu_stl_data(env, ea+60, env->gpr_d[15]);
+}
+
+static void save_context_lower(CPUTriCoreState *env, int ea)
+{
+    cpu_stl_data(env, ea, env->PCXI);
+    cpu_stl_data(env, ea+4, env->gpr_a[11]);
+    cpu_stl_data(env, ea+8, env->gpr_a[2]);
+    cpu_stl_data(env, ea+12, env->gpr_a[3]);
+    cpu_stl_data(env, ea+16, env->gpr_d[0]);
+    cpu_stl_data(env, ea+20, env->gpr_d[1]);
+    cpu_stl_data(env, ea+24, env->gpr_d[2]);
+    cpu_stl_data(env, ea+28, env->gpr_d[3]);
+    cpu_stl_data(env, ea+32, env->gpr_a[4]);
+    cpu_stl_data(env, ea+36, env->gpr_a[5]);
+    cpu_stl_data(env, ea+40, env->gpr_a[6]);
+    cpu_stl_data(env, ea+44, env->gpr_a[7]);
+    cpu_stl_data(env, ea+48, env->gpr_d[4]);
+    cpu_stl_data(env, ea+52, env->gpr_d[5]);
+    cpu_stl_data(env, ea+56, env->gpr_d[6]);
+    cpu_stl_data(env, ea+60, env->gpr_d[7]);
+}
+
+static void restore_context_upper(CPUTriCoreState *env, int ea,
+                                  target_ulong *new_PCXI, target_ulong *new_PSW)
+{
+    *new_PCXI = cpu_ldl_data(env, ea);
+    *new_PSW = cpu_ldl_data(env, ea+4);
+    env->gpr_a[10] = cpu_ldl_data(env, ea+8);
+    env->gpr_a[11] = cpu_ldl_data(env, ea+12);
+    env->gpr_d[8]  = cpu_ldl_data(env, ea+16);
+    env->gpr_d[9]  = cpu_ldl_data(env, ea+20);
+    env->gpr_d[10] = cpu_ldl_data(env, ea+24);
+    env->gpr_d[11] = cpu_ldl_data(env, ea+28);
+    env->gpr_a[12] = cpu_ldl_data(env, ea+32);
+    env->gpr_a[13] = cpu_ldl_data(env, ea+36);
+    env->gpr_a[14] = cpu_ldl_data(env, ea+40);
+    env->gpr_a[15] = cpu_ldl_data(env, ea+44);
+    env->gpr_d[12] = cpu_ldl_data(env, ea+48);
+    env->gpr_d[13] = cpu_ldl_data(env, ea+52);
+    env->gpr_d[14] = cpu_ldl_data(env, ea+56);
+    env->gpr_d[15] = cpu_ldl_data(env, ea+60);
+}
+
+static void restore_context_lower(CPUTriCoreState *env, int ea,
+                                  target_ulong *ra, target_ulong *pcxi)
+{
+    *pcxi = cpu_ldl_data(env, ea);
+    *ra = cpu_ldl_data(env, ea+4);
+    env->gpr_a[2] = cpu_ldl_data(env, ea+8);
+    env->gpr_a[3] = cpu_ldl_data(env, ea+12);
+    env->gpr_d[0] = cpu_ldl_data(env, ea+16);
+    env->gpr_d[1] = cpu_ldl_data(env, ea+20);
+    env->gpr_d[2] = cpu_ldl_data(env, ea+24);
+    env->gpr_d[3] = cpu_ldl_data(env, ea+28);
+    env->gpr_a[4] = cpu_ldl_data(env, ea+32);
+    env->gpr_a[5] = cpu_ldl_data(env, ea+36);
+    env->gpr_a[6] = cpu_ldl_data(env, ea+40);
+    env->gpr_a[7] = cpu_ldl_data(env, ea+44);
+    env->gpr_d[4] = cpu_ldl_data(env, ea+48);
+    env->gpr_d[5] = cpu_ldl_data(env, ea+52);
+    env->gpr_d[6] = cpu_ldl_data(env, ea+56);
+    env->gpr_d[7] = cpu_ldl_data(env, ea+60);
+}
+
+void helper_call(CPUTriCoreState *env, uint32_t next_pc)
+{
+    target_ulong tmp_FCX;
+    target_ulong ea;
+    target_ulong new_FCX;
+    target_ulong psw;
+
+    psw = psw_read(env);
+    /* if (FCX == 0) trap(FCU); */
+    if (env->FCX == 0) {
+        /* FCU trap */
+    }
+    /* if (PSW.CDE) then if (cdc_increment()) then trap(CDO); */
+    if (psw & MASK_PSW_CDE) {
+        if (cdc_increment(&psw)) {
+            /* CDO trap */
+        }
+    }
+    /* PSW.CDE = 1;*/
+    psw |= MASK_PSW_CDE;
+    /* tmp_FCX = FCX; */
+    tmp_FCX = env->FCX;
+    /* EA = {FCX.FCXS, 6'b0, FCX.FCXO, 6'b0}; */
+    ea = ((env->FCX & MASK_FCX_FCXS) << 12) +
+         ((env->FCX & MASK_FCX_FCXO) << 6);
+    /* new_FCX = M(EA, word); */
+    new_FCX = cpu_ldl_data(env, ea);
+    /* M(EA, 16 * word) = {PCXI, PSW, A[10], A[11], D[8], D[9], D[10], D[11],
+                           A[12], A[13], A[14], A[15], D[12], D[13], D[14],
+                           D[15]}; */
+    save_context_upper(env, ea);
+
+    /* PCXI.PCPN = ICR.CCPN; */
+    env->PCXI = (env->PCXI & 0xffffff) +
+                ((env->ICR & MASK_ICR_CCPN) << 24);
+    /* PCXI.PIE = ICR.IE; */
+    env->PCXI = ((env->PCXI & ~MASK_PCXI_PIE) +
+                ((env->ICR & MASK_ICR_IE) << 15));
+    /* PCXI.UL = 1; */
+    env->PCXI |= MASK_PCXI_UL;
+
+    /* PCXI[19: 0] = FCX[19: 0]; */
+    env->PCXI = (env->PCXI & 0xfff00000) + (env->FCX & 0xfffff);
+    /* FCX[19: 0] = new_FCX[19: 0]; */
+    env->FCX = (env->FCX & 0xfff00000) + (new_FCX & 0xfffff);
+    /* A[11] = next_pc[31: 0]; */
+    env->gpr_a[11] = next_pc;
+
+    /* if (tmp_FCX == LCX) trap(FCD);*/
+    if (tmp_FCX == env->LCX) {
+        /* FCD trap */
+    }
+    psw_write(env, psw);
+}
+
+void helper_ret(CPUTriCoreState *env)
+{
+    target_ulong ea;
+    target_ulong new_PCXI;
+    target_ulong new_PSW, psw;
+
+    psw = psw_read(env);
+     /* if (PSW.CDE) then if (cdc_decrement()) then trap(CDU);*/
+    if (env->PSW & MASK_PSW_CDE) {
+        if (cdc_decrement(&(env->PSW))) {
+            /* CDU trap */
+        }
+    }
+    /*   if (PCXI[19: 0] == 0) then trap(CSU); */
+    if ((env->PCXI & 0xfffff) == 0) {
+        /* CSU trap */
+    }
+    /* if (PCXI.UL == 0) then trap(CTYP); */
+    if ((env->PCXI & MASK_PCXI_UL) == 0) {
+        /* CTYP trap */
+    }
+    /* PC = {A11 [31: 1], 1’b0}; */
+    env->PC = env->gpr_a[11] & 0xfffffffe;
+
+    /* EA = {PCXI.PCXS, 6'b0, PCXI.PCXO, 6'b0}; */
+    ea = ((env->PCXI & MASK_PCXI_PCXS) << 12) +
+         ((env->PCXI & MASK_PCXI_PCXO) << 6);
+    /* {new_PCXI, new_PSW, A[10], A[11], D[8], D[9], D[10], D[11], A[12],
+        A[13], A[14], A[15], D[12], D[13], D[14], D[15]} = M(EA, 16 * word); */
+    restore_context_upper(env, ea, &new_PCXI, &new_PSW);
+    /* M(EA, word) = FCX; */
+    cpu_stl_data(env, ea, env->FCX);
+    /* FCX[19: 0] = PCXI[19: 0]; */
+    env->FCX = (env->FCX & 0xfff00000) + (env->PCXI & 0x000fffff);
+    /* PCXI = new_PCXI; */
+    env->PCXI = new_PCXI;
+
+    if (tricore_feature(env, TRICORE_FEATURE_13)) {
+        /* PSW = new_PSW */
+        psw_write(env, new_PSW);
+    } else {
+        /* PSW = {new_PSW[31:26], PSW[25:24], new_PSW[23:0]}; */
+        psw_write(env, (new_PSW & ~(0x3000000)) + (psw & (0x3000000)));
+    }
+}
+
+void helper_bisr(CPUTriCoreState *env, uint32_t const9)
+{
+    target_ulong tmp_FCX;
+    target_ulong ea;
+    target_ulong new_FCX;
+
+    if (env->FCX == 0) {
+        /* FCU trap */
+    }
+
+    tmp_FCX = env->FCX;
+    ea = ((env->FCX & 0xf0000) << 12) + ((env->FCX & 0xffff) << 6);
+
+    /* new_FCX = M(EA, word); */
+    new_FCX = cpu_ldl_data(env, ea);
+    /* M(EA, 16 * word) = {PCXI, A[11], A[2], A[3], D[0], D[1], D[2], D[3], A[4]
+                           , A[5], A[6], A[7], D[4], D[5], D[6], D[7]}; */
+    save_context_lower(env, ea);
+
+
+    /* PCXI.PCPN = ICR.CCPN */
+    env->PCXI = (env->PCXI & 0xffffff) +
+                 ((env->ICR & MASK_ICR_CCPN) << 24);
+    /* PCXI.PIE  = ICR.IE */
+    env->PCXI = ((env->PCXI & ~MASK_PCXI_PIE) +
+                 ((env->ICR & MASK_ICR_IE) << 15));
+    /* PCXI.UL = 0 */
+    env->PCXI &= ~(MASK_PCXI_UL);
+    /* PCXI[19: 0] = FCX[19: 0] */
+    env->PCXI = (env->PCXI & 0xfff00000) + (env->FCX & 0xfffff);
+    /* FXC[19: 0] = new_FCX[19: 0] */
+    env->FCX = (env->FCX & 0xfff00000) + (new_FCX & 0xfffff);
+    /* ICR.IE = 1 */
+    env->ICR |= MASK_ICR_IE;
+
+    env->ICR |= const9; /* ICR.CCPN = const9[7: 0];*/
+
+    if (tmp_FCX == env->LCX) {
+        /* FCD trap */
+    }
+}
+
+void helper_rfe(CPUTriCoreState *env)
+{
+    target_ulong ea;
+    target_ulong new_PCXI;
+    target_ulong new_PSW;
+    /* if (PCXI[19: 0] == 0) then trap(CSU); */
+    if ((env->PCXI & 0xfffff) == 0) {
+        /* raise csu trap */
+    }
+    /* if (PCXI.UL == 0) then trap(CTYP); */
+    if ((env->PCXI & MASK_PCXI_UL) == 0) {
+        /* raise CTYP trap */
+    }
+    /* if (!cdc_zero() AND PSW.CDE) then trap(NEST); */
+    if (!cdc_zero(&(env->PSW)) && (env->PSW & MASK_PSW_CDE)) {
+        /* raise MNG trap */
+    }
+    env->PC = env->gpr_a[11] & ~0x1;
+    /* ICR.IE = PCXI.PIE; */
+    env->ICR = (env->ICR & ~MASK_ICR_IE) + ((env->PCXI & MASK_PCXI_PIE) >> 15);
+    /* ICR.CCPN = PCXI.PCPN; */
+    env->ICR = (env->ICR & ~MASK_ICR_CCPN) +
+               ((env->PCXI & MASK_PCXI_PCPN) >> 24);
+    /*EA = {PCXI.PCXS, 6'b0, PCXI.PCXO, 6'b0};*/
+    ea = ((env->PCXI & MASK_PCXI_PCXS) << 12) +
+         ((env->PCXI & MASK_PCXI_PCXO) << 6);
+    /*{new_PCXI, PSW, A[10], A[11], D[8], D[9], D[10], D[11], A[12],
+      A[13], A[14], A[15], D[12], D[13], D[14], D[15]} = M(EA, 16 * word); */
+    restore_context_upper(env, ea, &new_PCXI, &new_PSW);
+    /* M(EA, word) = FCX;*/
+    cpu_stl_data(env, ea, env->FCX);
+    /* FCX[19: 0] = PCXI[19: 0]; */
+    env->FCX = (env->FCX & 0xfff00000) + (env->PCXI & 0x000fffff);
+    /* PCXI = new_PCXI; */
+    env->PCXI = new_PCXI;
+    /* write psw */
+    psw_write(env, new_PSW);
+}
+
+void helper_rfm(CPUTriCoreState *env)
+{
+    env->PC = (env->gpr_a[11] & ~0x1);
+    /* ICR.IE = PCXI.PIE; */
+    env->ICR = (env->ICR & ~MASK_ICR_IE) |
+               ((env->PCXI & MASK_PCXI_PIE) >> 15);
+    /* ICR.CCPN = PCXI.PCPN; */
+    env->ICR = (env->ICR & ~MASK_ICR_CCPN) |
+               ((env->PCXI & MASK_PCXI_PCPN) >> 24);
+    /* {PCXI, PSW, A[10], A[11]} = M(DCX, 4 * word); */
+    env->PCXI = cpu_ldl_data(env, env->DCX);
+    psw_write(env, cpu_ldl_data(env, env->DCX+4));
+    env->gpr_a[10] = cpu_ldl_data(env, env->DCX+8);
+    env->gpr_a[11] = cpu_ldl_data(env, env->DCX+12);
+
+    if (tricore_feature(env, TRICORE_FEATURE_131)) {
+        env->DBGTCR = 0;
+    }
+}
+
+void helper_ldlcx(CPUTriCoreState *env, uint32_t ea)
+{
+    uint32_t dummy;
+    /* insn doesn't load PCXI and RA */
+    restore_context_lower(env, ea, &dummy, &dummy);
+}
+
+void helper_lducx(CPUTriCoreState *env, uint32_t ea)
+{
+    uint32_t dummy;
+    /* insn doesn't load PCXI and PSW */
+    restore_context_upper(env, ea, &dummy, &dummy);
+}
+
+void helper_stlcx(CPUTriCoreState *env, uint32_t ea)
+{
+    save_context_lower(env, ea);
+}
+
+void helper_stucx(CPUTriCoreState *env, uint32_t ea)
+{
+    save_context_upper(env, ea);
+}
+
+void helper_svlcx(CPUTriCoreState *env)
+{
+    target_ulong tmp_FCX;
+    target_ulong ea;
+    target_ulong new_FCX;
+
+    if (env->FCX == 0) {
+        /* FCU trap */
+    }
+    /* tmp_FCX = FCX; */
+    tmp_FCX = env->FCX;
+    /* EA = {FCX.FCXS, 6'b0, FCX.FCXO, 6'b0}; */
+    ea = ((env->FCX & MASK_FCX_FCXS) << 12) +
+         ((env->FCX & MASK_FCX_FCXO) << 6);
+    /* new_FCX = M(EA, word); */
+    new_FCX = cpu_ldl_data(env, ea);
+    /* M(EA, 16 * word) = {PCXI, PSW, A[10], A[11], D[8], D[9], D[10], D[11],
+                           A[12], A[13], A[14], A[15], D[12], D[13], D[14],
+                           D[15]}; */
+    save_context_lower(env, ea);
+
+    /* PCXI.PCPN = ICR.CCPN; */
+    env->PCXI = (env->PCXI & 0xffffff) +
+                ((env->ICR & MASK_ICR_CCPN) << 24);
+    /* PCXI.PIE = ICR.IE; */
+    env->PCXI = ((env->PCXI & ~MASK_PCXI_PIE) +
+                ((env->ICR & MASK_ICR_IE) << 15));
+    /* PCXI.UL = 0; */
+    env->PCXI &= ~MASK_PCXI_UL;
+
+    /* PCXI[19: 0] = FCX[19: 0]; */
+    env->PCXI = (env->PCXI & 0xfff00000) + (env->FCX & 0xfffff);
+    /* FCX[19: 0] = new_FCX[19: 0]; */
+    env->FCX = (env->FCX & 0xfff00000) + (new_FCX & 0xfffff);
+
+    /* if (tmp_FCX == LCX) trap(FCD);*/
+    if (tmp_FCX == env->LCX) {
+        /* FCD trap */
+    }
+}
+
+void helper_rslcx(CPUTriCoreState *env)
+{
+    target_ulong ea;
+    target_ulong new_PCXI;
+    /*   if (PCXI[19: 0] == 0) then trap(CSU); */
+    if ((env->PCXI & 0xfffff) == 0) {
+        /* CSU trap */
+    }
+    /* if (PCXI.UL == 1) then trap(CTYP); */
+    if ((env->PCXI & MASK_PCXI_UL) != 0) {
+        /* CTYP trap */
+    }
+    /* EA = {PCXI.PCXS, 6'b0, PCXI.PCXO, 6'b0}; */
+    ea = ((env->PCXI & MASK_PCXI_PCXS) << 12) +
+         ((env->PCXI & MASK_PCXI_PCXO) << 6);
+    /* {new_PCXI, A[11], A[10], A[11], D[8], D[9], D[10], D[11], A[12],
+        A[13], A[14], A[15], D[12], D[13], D[14], D[15]} = M(EA, 16 * word); */
+    restore_context_lower(env, ea, &env->gpr_a[11], &new_PCXI);
+    /* M(EA, word) = FCX; */
+    cpu_stl_data(env, ea, env->FCX);
+    /* M(EA, word) = FCX; */
+    cpu_stl_data(env, ea, env->FCX);
+    /* FCX[19: 0] = PCXI[19: 0]; */
+    env->FCX = (env->FCX & 0xfff00000) + (env->PCXI & 0x000fffff);
+    /* PCXI = new_PCXI; */
+    env->PCXI = new_PCXI;
+}
+
+void helper_psw_write(CPUTriCoreState *env, uint32_t arg)
+{
+    psw_write(env, arg);
+}
+
+uint32_t helper_psw_read(CPUTriCoreState *env)
+{
+    return psw_read(env);
+}
+
+
+static inline void QEMU_NORETURN do_raise_exception_err(CPUTriCoreState *env,
+                                                        uint32_t exception,
+                                                        int error_code,
+                                                        uintptr_t pc)
+{
+    CPUState *cs = CPU(tricore_env_get_cpu(env));
+    cs->exception_index = exception;
+    env->error_code = error_code;
+
+    if (pc) {
+        /* now we have a real cpu fault */
+        cpu_restore_state(cs, pc);
+    }
+
+    cpu_loop_exit(cs);
+}
+
+void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
+              uintptr_t retaddr)
+{
+    int ret;
+    ret = cpu_tricore_handle_mmu_fault(cs, addr, is_write, mmu_idx);
+    if (ret) {
+        TriCoreCPU *cpu = TRICORE_CPU(cs);
+        CPUTriCoreState *env = &cpu->env;
+        do_raise_exception_err(env, cs->exception_index,
+                               env->error_code, retaddr);
+    }
+}