Patchwork [14/25] x86: split off integer helpers

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Submitter Blue Swirl
Date June 9, 2012, 4:19 p.m.
Message ID <57a3dd1108783146b9618aef0d3f98b08d071ffc.1339258553.git.blauwirbel@gmail.com>
Download mbox | patch
Permalink /patch/163943/
State New
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Comments

Blue Swirl - June 9, 2012, 4:19 p.m.
Move integer and bit field helpers to int_helper.c.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
---
 target-i386/Makefile.objs |    3 +-
 target-i386/int_helper.c  |  500 +++++++++++++++++++++++++++++++++++++++++++++
 target-i386/op_helper.c   |  478 -------------------------------------------
 3 files changed, 502 insertions(+), 479 deletions(-)
 create mode 100644 target-i386/int_helper.c

Patch

diff --git a/target-i386/Makefile.objs b/target-i386/Makefile.objs
index 98603a4..ed69e31 100644
--- a/target-i386/Makefile.objs
+++ b/target-i386/Makefile.objs
@@ -1,8 +1,9 @@ 
 obj-y += translate.o op_helper.o helper.o cpu.o
-obj-y += excp_helper.o fpu_helper.o cc_helper.o
+obj-y += excp_helper.o fpu_helper.o cc_helper.o int_helper.o
 obj-$(CONFIG_SOFTMMU) += machine.o arch_memory_mapping.o arch_dump.o
 obj-$(CONFIG_KVM) += kvm.o hyperv.o
 obj-$(CONFIG_LINUX_USER) += ioport-user.o
 obj-$(CONFIG_BSD_USER) += ioport-user.o
 
 $(obj)/op_helper.o: QEMU_CFLAGS += $(HELPER_CFLAGS)
+$(obj)/int_helper.o: QEMU_CFLAGS += $(HELPER_CFLAGS)
diff --git a/target-i386/int_helper.c b/target-i386/int_helper.c
new file mode 100644
index 0000000..1a13e4e
--- /dev/null
+++ b/target-i386/int_helper.c
@@ -0,0 +1,500 @@ 
+/*
+ *  x86 integer helpers
+ *
+ *  Copyright (c) 2003 Fabrice Bellard
+ *
+ * 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 "cpu.h"
+#include "dyngen-exec.h"
+#include "host-utils.h"
+#include "helper.h"
+
+//#define DEBUG_MULDIV
+
+/* modulo 9 table */
+static const uint8_t rclb_table[32] = {
+    0, 1, 2, 3, 4, 5, 6, 7,
+    8, 0, 1, 2, 3, 4, 5, 6,
+    7, 8, 0, 1, 2, 3, 4, 5,
+    6, 7, 8, 0, 1, 2, 3, 4,
+};
+
+/* modulo 17 table */
+static const uint8_t rclw_table[32] = {
+    0, 1, 2, 3, 4, 5, 6, 7,
+    8, 9, 10, 11, 12, 13, 14, 15,
+    16, 0, 1, 2, 3, 4, 5, 6,
+    7, 8, 9, 10, 11, 12, 13, 14,
+};
+
+/* division, flags are undefined */
+
+void helper_divb_AL(target_ulong t0)
+{
+    unsigned int num, den, q, r;
+
+    num = (EAX & 0xffff);
+    den = (t0 & 0xff);
+    if (den == 0) {
+        raise_exception(env, EXCP00_DIVZ);
+    }
+    q = (num / den);
+    if (q > 0xff) {
+        raise_exception(env, EXCP00_DIVZ);
+    }
+    q &= 0xff;
+    r = (num % den) & 0xff;
+    EAX = (EAX & ~0xffff) | (r << 8) | q;
+}
+
+void helper_idivb_AL(target_ulong t0)
+{
+    int num, den, q, r;
+
+    num = (int16_t)EAX;
+    den = (int8_t)t0;
+    if (den == 0) {
+        raise_exception(env, EXCP00_DIVZ);
+    }
+    q = (num / den);
+    if (q != (int8_t)q) {
+        raise_exception(env, EXCP00_DIVZ);
+    }
+    q &= 0xff;
+    r = (num % den) & 0xff;
+    EAX = (EAX & ~0xffff) | (r << 8) | q;
+}
+
+void helper_divw_AX(target_ulong t0)
+{
+    unsigned int num, den, q, r;
+
+    num = (EAX & 0xffff) | ((EDX & 0xffff) << 16);
+    den = (t0 & 0xffff);
+    if (den == 0) {
+        raise_exception(env, EXCP00_DIVZ);
+    }
+    q = (num / den);
+    if (q > 0xffff) {
+        raise_exception(env, EXCP00_DIVZ);
+    }
+    q &= 0xffff;
+    r = (num % den) & 0xffff;
+    EAX = (EAX & ~0xffff) | q;
+    EDX = (EDX & ~0xffff) | r;
+}
+
+void helper_idivw_AX(target_ulong t0)
+{
+    int num, den, q, r;
+
+    num = (EAX & 0xffff) | ((EDX & 0xffff) << 16);
+    den = (int16_t)t0;
+    if (den == 0) {
+        raise_exception(env, EXCP00_DIVZ);
+    }
+    q = (num / den);
+    if (q != (int16_t)q) {
+        raise_exception(env, EXCP00_DIVZ);
+    }
+    q &= 0xffff;
+    r = (num % den) & 0xffff;
+    EAX = (EAX & ~0xffff) | q;
+    EDX = (EDX & ~0xffff) | r;
+}
+
+void helper_divl_EAX(target_ulong t0)
+{
+    unsigned int den, r;
+    uint64_t num, q;
+
+    num = ((uint32_t)EAX) | ((uint64_t)((uint32_t)EDX) << 32);
+    den = t0;
+    if (den == 0) {
+        raise_exception(env, EXCP00_DIVZ);
+    }
+    q = (num / den);
+    r = (num % den);
+    if (q > 0xffffffff) {
+        raise_exception(env, EXCP00_DIVZ);
+    }
+    EAX = (uint32_t)q;
+    EDX = (uint32_t)r;
+}
+
+void helper_idivl_EAX(target_ulong t0)
+{
+    int den, r;
+    int64_t num, q;
+
+    num = ((uint32_t)EAX) | ((uint64_t)((uint32_t)EDX) << 32);
+    den = t0;
+    if (den == 0) {
+        raise_exception(env, EXCP00_DIVZ);
+    }
+    q = (num / den);
+    r = (num % den);
+    if (q != (int32_t)q) {
+        raise_exception(env, EXCP00_DIVZ);
+    }
+    EAX = (uint32_t)q;
+    EDX = (uint32_t)r;
+}
+
+/* bcd */
+
+/* XXX: exception */
+void helper_aam(int base)
+{
+    int al, ah;
+
+    al = EAX & 0xff;
+    ah = al / base;
+    al = al % base;
+    EAX = (EAX & ~0xffff) | al | (ah << 8);
+    CC_DST = al;
+}
+
+void helper_aad(int base)
+{
+    int al, ah;
+
+    al = EAX & 0xff;
+    ah = (EAX >> 8) & 0xff;
+    al = ((ah * base) + al) & 0xff;
+    EAX = (EAX & ~0xffff) | al;
+    CC_DST = al;
+}
+
+void helper_aaa(void)
+{
+    int icarry;
+    int al, ah, af;
+    int eflags;
+
+    eflags = cpu_cc_compute_all(env, CC_OP);
+    af = eflags & CC_A;
+    al = EAX & 0xff;
+    ah = (EAX >> 8) & 0xff;
+
+    icarry = (al > 0xf9);
+    if (((al & 0x0f) > 9) || af) {
+        al = (al + 6) & 0x0f;
+        ah = (ah + 1 + icarry) & 0xff;
+        eflags |= CC_C | CC_A;
+    } else {
+        eflags &= ~(CC_C | CC_A);
+        al &= 0x0f;
+    }
+    EAX = (EAX & ~0xffff) | al | (ah << 8);
+    CC_SRC = eflags;
+}
+
+void helper_aas(void)
+{
+    int icarry;
+    int al, ah, af;
+    int eflags;
+
+    eflags = cpu_cc_compute_all(env, CC_OP);
+    af = eflags & CC_A;
+    al = EAX & 0xff;
+    ah = (EAX >> 8) & 0xff;
+
+    icarry = (al < 6);
+    if (((al & 0x0f) > 9) || af) {
+        al = (al - 6) & 0x0f;
+        ah = (ah - 1 - icarry) & 0xff;
+        eflags |= CC_C | CC_A;
+    } else {
+        eflags &= ~(CC_C | CC_A);
+        al &= 0x0f;
+    }
+    EAX = (EAX & ~0xffff) | al | (ah << 8);
+    CC_SRC = eflags;
+}
+
+void helper_daa(void)
+{
+    int old_al, al, af, cf;
+    int eflags;
+
+    eflags = cpu_cc_compute_all(env, CC_OP);
+    cf = eflags & CC_C;
+    af = eflags & CC_A;
+    old_al = al = EAX & 0xff;
+
+    eflags = 0;
+    if (((al & 0x0f) > 9) || af) {
+        al = (al + 6) & 0xff;
+        eflags |= CC_A;
+    }
+    if ((old_al > 0x99) || cf) {
+        al = (al + 0x60) & 0xff;
+        eflags |= CC_C;
+    }
+    EAX = (EAX & ~0xff) | al;
+    /* well, speed is not an issue here, so we compute the flags by hand */
+    eflags |= (al == 0) << 6; /* zf */
+    eflags |= parity_table[al]; /* pf */
+    eflags |= (al & 0x80); /* sf */
+    CC_SRC = eflags;
+}
+
+void helper_das(void)
+{
+    int al, al1, af, cf;
+    int eflags;
+
+    eflags = cpu_cc_compute_all(env, CC_OP);
+    cf = eflags & CC_C;
+    af = eflags & CC_A;
+    al = EAX & 0xff;
+
+    eflags = 0;
+    al1 = al;
+    if (((al & 0x0f) > 9) || af) {
+        eflags |= CC_A;
+        if (al < 6 || cf) {
+            eflags |= CC_C;
+        }
+        al = (al - 6) & 0xff;
+    }
+    if ((al1 > 0x99) || cf) {
+        al = (al - 0x60) & 0xff;
+        eflags |= CC_C;
+    }
+    EAX = (EAX & ~0xff) | al;
+    /* well, speed is not an issue here, so we compute the flags by hand */
+    eflags |= (al == 0) << 6; /* zf */
+    eflags |= parity_table[al]; /* pf */
+    eflags |= (al & 0x80); /* sf */
+    CC_SRC = eflags;
+}
+
+#ifdef TARGET_X86_64
+static void add128(uint64_t *plow, uint64_t *phigh, uint64_t a, uint64_t b)
+{
+    *plow += a;
+    /* carry test */
+    if (*plow < a) {
+        (*phigh)++;
+    }
+    *phigh += b;
+}
+
+static void neg128(uint64_t *plow, uint64_t *phigh)
+{
+    *plow = ~*plow;
+    *phigh = ~*phigh;
+    add128(plow, phigh, 1, 0);
+}
+
+/* return TRUE if overflow */
+static int div64(uint64_t *plow, uint64_t *phigh, uint64_t b)
+{
+    uint64_t q, r, a1, a0;
+    int i, qb, ab;
+
+    a0 = *plow;
+    a1 = *phigh;
+    if (a1 == 0) {
+        q = a0 / b;
+        r = a0 % b;
+        *plow = q;
+        *phigh = r;
+    } else {
+        if (a1 >= b) {
+            return 1;
+        }
+        /* XXX: use a better algorithm */
+        for (i = 0; i < 64; i++) {
+            ab = a1 >> 63;
+            a1 = (a1 << 1) | (a0 >> 63);
+            if (ab || a1 >= b) {
+                a1 -= b;
+                qb = 1;
+            } else {
+                qb = 0;
+            }
+            a0 = (a0 << 1) | qb;
+        }
+#if defined(DEBUG_MULDIV)
+        printf("div: 0x%016" PRIx64 "%016" PRIx64 " / 0x%016" PRIx64
+               ": q=0x%016" PRIx64 " r=0x%016" PRIx64 "\n",
+               *phigh, *plow, b, a0, a1);
+#endif
+        *plow = a0;
+        *phigh = a1;
+    }
+    return 0;
+}
+
+/* return TRUE if overflow */
+static int idiv64(uint64_t *plow, uint64_t *phigh, int64_t b)
+{
+    int sa, sb;
+
+    sa = ((int64_t)*phigh < 0);
+    if (sa) {
+        neg128(plow, phigh);
+    }
+    sb = (b < 0);
+    if (sb) {
+        b = -b;
+    }
+    if (div64(plow, phigh, b) != 0) {
+        return 1;
+    }
+    if (sa ^ sb) {
+        if (*plow > (1ULL << 63)) {
+            return 1;
+        }
+        *plow = -*plow;
+    } else {
+        if (*plow >= (1ULL << 63)) {
+            return 1;
+        }
+    }
+    if (sa) {
+        *phigh = -*phigh;
+    }
+    return 0;
+}
+
+void helper_mulq_EAX_T0(target_ulong t0)
+{
+    uint64_t r0, r1;
+
+    mulu64(&r0, &r1, EAX, t0);
+    EAX = r0;
+    EDX = r1;
+    CC_DST = r0;
+    CC_SRC = r1;
+}
+
+void helper_imulq_EAX_T0(target_ulong t0)
+{
+    uint64_t r0, r1;
+
+    muls64(&r0, &r1, EAX, t0);
+    EAX = r0;
+    EDX = r1;
+    CC_DST = r0;
+    CC_SRC = ((int64_t)r1 != ((int64_t)r0 >> 63));
+}
+
+target_ulong helper_imulq_T0_T1(target_ulong t0, target_ulong t1)
+{
+    uint64_t r0, r1;
+
+    muls64(&r0, &r1, t0, t1);
+    CC_DST = r0;
+    CC_SRC = ((int64_t)r1 != ((int64_t)r0 >> 63));
+    return r0;
+}
+
+void helper_divq_EAX(target_ulong t0)
+{
+    uint64_t r0, r1;
+
+    if (t0 == 0) {
+        raise_exception(env, EXCP00_DIVZ);
+    }
+    r0 = EAX;
+    r1 = EDX;
+    if (div64(&r0, &r1, t0)) {
+        raise_exception(env, EXCP00_DIVZ);
+    }
+    EAX = r0;
+    EDX = r1;
+}
+
+void helper_idivq_EAX(target_ulong t0)
+{
+    uint64_t r0, r1;
+
+    if (t0 == 0) {
+        raise_exception(env, EXCP00_DIVZ);
+    }
+    r0 = EAX;
+    r1 = EDX;
+    if (idiv64(&r0, &r1, t0)) {
+        raise_exception(env, EXCP00_DIVZ);
+    }
+    EAX = r0;
+    EDX = r1;
+}
+#endif
+
+/* bit operations */
+target_ulong helper_bsf(target_ulong t0)
+{
+    int count;
+    target_ulong res;
+
+    res = t0;
+    count = 0;
+    while ((res & 1) == 0) {
+        count++;
+        res >>= 1;
+    }
+    return count;
+}
+
+target_ulong helper_lzcnt(target_ulong t0, int wordsize)
+{
+    int count;
+    target_ulong res, mask;
+
+    if (wordsize > 0 && t0 == 0) {
+        return wordsize;
+    }
+    res = t0;
+    count = TARGET_LONG_BITS - 1;
+    mask = (target_ulong)1 << (TARGET_LONG_BITS - 1);
+    while ((res & mask) == 0) {
+        count--;
+        res <<= 1;
+    }
+    if (wordsize > 0) {
+        return wordsize - 1 - count;
+    }
+    return count;
+}
+
+target_ulong helper_bsr(target_ulong t0)
+{
+    return helper_lzcnt(t0, 0);
+}
+
+#define SHIFT 0
+#include "shift_helper_template.h"
+#undef SHIFT
+
+#define SHIFT 1
+#include "shift_helper_template.h"
+#undef SHIFT
+
+#define SHIFT 2
+#include "shift_helper_template.h"
+#undef SHIFT
+
+#ifdef TARGET_X86_64
+#define SHIFT 3
+#include "shift_helper_template.h"
+#undef SHIFT
+#endif
diff --git a/target-i386/op_helper.c b/target-i386/op_helper.c
index d855e67..8da2c5c 100644
--- a/target-i386/op_helper.c
+++ b/target-i386/op_helper.c
@@ -19,7 +19,6 @@ 
 
 #include "cpu.h"
 #include "dyngen-exec.h"
-#include "host-utils.h"
 #include "ioport.h"
 #include "qemu-log.h"
 #include "cpu-defs.h"
@@ -30,7 +29,6 @@ 
 #endif /* !defined(CONFIG_USER_ONLY) */
 
 //#define DEBUG_PCALL
-//#define DEBUG_MULDIV
 
 #ifdef DEBUG_PCALL
 # define LOG_PCALL(...) qemu_log_mask(CPU_LOG_PCALL, ## __VA_ARGS__)
@@ -41,22 +39,6 @@ 
 # define LOG_PCALL_STATE(env) do { } while (0)
 #endif
 
-/* modulo 17 table */
-static const uint8_t rclw_table[32] = {
-    0, 1, 2, 3, 4, 5, 6, 7,
-    8, 9, 10, 11, 12, 13, 14, 15,
-    16, 0, 1, 2, 3, 4, 5, 6,
-    7, 8, 9, 10, 11, 12, 13, 14,
-};
-
-/* modulo 9 table */
-static const uint8_t rclb_table[32] = {
-    0, 1, 2, 3, 4, 5, 6, 7,
-    8, 0, 1, 2, 3, 4, 5, 6,
-    7, 8, 0, 1, 2, 3, 4, 5,
-    6, 7, 8, 0, 1, 2, 3, 4,
-};
-
 /* broken thread support */
 
 static spinlock_t global_cpu_lock = SPIN_LOCK_UNLOCKED;
@@ -1656,252 +1638,6 @@  void helper_rsm(void)
 
 #endif /* !CONFIG_USER_ONLY */
 
-
-/* division, flags are undefined */
-
-void helper_divb_AL(target_ulong t0)
-{
-    unsigned int num, den, q, r;
-
-    num = (EAX & 0xffff);
-    den = (t0 & 0xff);
-    if (den == 0) {
-        raise_exception(env, EXCP00_DIVZ);
-    }
-    q = (num / den);
-    if (q > 0xff) {
-        raise_exception(env, EXCP00_DIVZ);
-    }
-    q &= 0xff;
-    r = (num % den) & 0xff;
-    EAX = (EAX & ~0xffff) | (r << 8) | q;
-}
-
-void helper_idivb_AL(target_ulong t0)
-{
-    int num, den, q, r;
-
-    num = (int16_t)EAX;
-    den = (int8_t)t0;
-    if (den == 0) {
-        raise_exception(env, EXCP00_DIVZ);
-    }
-    q = (num / den);
-    if (q != (int8_t)q) {
-        raise_exception(env, EXCP00_DIVZ);
-    }
-    q &= 0xff;
-    r = (num % den) & 0xff;
-    EAX = (EAX & ~0xffff) | (r << 8) | q;
-}
-
-void helper_divw_AX(target_ulong t0)
-{
-    unsigned int num, den, q, r;
-
-    num = (EAX & 0xffff) | ((EDX & 0xffff) << 16);
-    den = (t0 & 0xffff);
-    if (den == 0) {
-        raise_exception(env, EXCP00_DIVZ);
-    }
-    q = (num / den);
-    if (q > 0xffff) {
-        raise_exception(env, EXCP00_DIVZ);
-    }
-    q &= 0xffff;
-    r = (num % den) & 0xffff;
-    EAX = (EAX & ~0xffff) | q;
-    EDX = (EDX & ~0xffff) | r;
-}
-
-void helper_idivw_AX(target_ulong t0)
-{
-    int num, den, q, r;
-
-    num = (EAX & 0xffff) | ((EDX & 0xffff) << 16);
-    den = (int16_t)t0;
-    if (den == 0) {
-        raise_exception(env, EXCP00_DIVZ);
-    }
-    q = (num / den);
-    if (q != (int16_t)q) {
-        raise_exception(env, EXCP00_DIVZ);
-    }
-    q &= 0xffff;
-    r = (num % den) & 0xffff;
-    EAX = (EAX & ~0xffff) | q;
-    EDX = (EDX & ~0xffff) | r;
-}
-
-void helper_divl_EAX(target_ulong t0)
-{
-    unsigned int den, r;
-    uint64_t num, q;
-
-    num = ((uint32_t)EAX) | ((uint64_t)((uint32_t)EDX) << 32);
-    den = t0;
-    if (den == 0) {
-        raise_exception(env, EXCP00_DIVZ);
-    }
-    q = (num / den);
-    r = (num % den);
-    if (q > 0xffffffff) {
-        raise_exception(env, EXCP00_DIVZ);
-    }
-    EAX = (uint32_t)q;
-    EDX = (uint32_t)r;
-}
-
-void helper_idivl_EAX(target_ulong t0)
-{
-    int den, r;
-    int64_t num, q;
-
-    num = ((uint32_t)EAX) | ((uint64_t)((uint32_t)EDX) << 32);
-    den = t0;
-    if (den == 0) {
-        raise_exception(env, EXCP00_DIVZ);
-    }
-    q = (num / den);
-    r = (num % den);
-    if (q != (int32_t)q) {
-        raise_exception(env, EXCP00_DIVZ);
-    }
-    EAX = (uint32_t)q;
-    EDX = (uint32_t)r;
-}
-
-/* bcd */
-
-/* XXX: exception */
-void helper_aam(int base)
-{
-    int al, ah;
-
-    al = EAX & 0xff;
-    ah = al / base;
-    al = al % base;
-    EAX = (EAX & ~0xffff) | al | (ah << 8);
-    CC_DST = al;
-}
-
-void helper_aad(int base)
-{
-    int al, ah;
-
-    al = EAX & 0xff;
-    ah = (EAX >> 8) & 0xff;
-    al = ((ah * base) + al) & 0xff;
-    EAX = (EAX & ~0xffff) | al;
-    CC_DST = al;
-}
-
-void helper_aaa(void)
-{
-    int icarry;
-    int al, ah, af;
-    int eflags;
-
-    eflags = cpu_cc_compute_all(env, CC_OP);
-    af = eflags & CC_A;
-    al = EAX & 0xff;
-    ah = (EAX >> 8) & 0xff;
-
-    icarry = (al > 0xf9);
-    if (((al & 0x0f) > 9) || af) {
-        al = (al + 6) & 0x0f;
-        ah = (ah + 1 + icarry) & 0xff;
-        eflags |= CC_C | CC_A;
-    } else {
-        eflags &= ~(CC_C | CC_A);
-        al &= 0x0f;
-    }
-    EAX = (EAX & ~0xffff) | al | (ah << 8);
-    CC_SRC = eflags;
-}
-
-void helper_aas(void)
-{
-    int icarry;
-    int al, ah, af;
-    int eflags;
-
-    eflags = cpu_cc_compute_all(env, CC_OP);
-    af = eflags & CC_A;
-    al = EAX & 0xff;
-    ah = (EAX >> 8) & 0xff;
-
-    icarry = (al < 6);
-    if (((al & 0x0f) > 9) || af) {
-        al = (al - 6) & 0x0f;
-        ah = (ah - 1 - icarry) & 0xff;
-        eflags |= CC_C | CC_A;
-    } else {
-        eflags &= ~(CC_C | CC_A);
-        al &= 0x0f;
-    }
-    EAX = (EAX & ~0xffff) | al | (ah << 8);
-    CC_SRC = eflags;
-}
-
-void helper_daa(void)
-{
-    int old_al, al, af, cf;
-    int eflags;
-
-    eflags = cpu_cc_compute_all(env, CC_OP);
-    cf = eflags & CC_C;
-    af = eflags & CC_A;
-    old_al = al = EAX & 0xff;
-
-    eflags = 0;
-    if (((al & 0x0f) > 9) || af) {
-        al = (al + 6) & 0xff;
-        eflags |= CC_A;
-    }
-    if ((old_al > 0x99) || cf) {
-        al = (al + 0x60) & 0xff;
-        eflags |= CC_C;
-    }
-    EAX = (EAX & ~0xff) | al;
-    /* well, speed is not an issue here, so we compute the flags by hand */
-    eflags |= (al == 0) << 6; /* zf */
-    eflags |= parity_table[al]; /* pf */
-    eflags |= (al & 0x80); /* sf */
-    CC_SRC = eflags;
-}
-
-void helper_das(void)
-{
-    int al, al1, af, cf;
-    int eflags;
-
-    eflags = cpu_cc_compute_all(env, CC_OP);
-    cf = eflags & CC_C;
-    af = eflags & CC_A;
-    al = EAX & 0xff;
-
-    eflags = 0;
-    al1 = al;
-    if (((al & 0x0f) > 9) || af) {
-        eflags |= CC_A;
-        if (al < 6 || cf) {
-            eflags |= CC_C;
-        }
-        al = (al - 6) & 0xff;
-    }
-    if ((al1 > 0x99) || cf) {
-        al = (al - 0x60) & 0xff;
-        eflags |= CC_C;
-    }
-    EAX = (EAX & ~0xff) | al;
-    /* well, speed is not an issue here, so we compute the flags by hand */
-    eflags |= (al == 0) << 6; /* zf */
-    eflags |= parity_table[al]; /* pf */
-    eflags |= (al & 0x80); /* sf */
-    CC_SRC = eflags;
-}
-
 void helper_into(int next_eip_addend)
 {
     int eflags;
@@ -3614,161 +3350,6 @@  void cpu_x86_load_seg(CPUX86State *s, int seg_reg, int selector)
 }
 #endif
 
-#ifdef TARGET_X86_64
-static void add128(uint64_t *plow, uint64_t *phigh, uint64_t a, uint64_t b)
-{
-    *plow += a;
-    /* carry test */
-    if (*plow < a) {
-        (*phigh)++;
-    }
-    *phigh += b;
-}
-
-static void neg128(uint64_t *plow, uint64_t *phigh)
-{
-    *plow = ~*plow;
-    *phigh = ~*phigh;
-    add128(plow, phigh, 1, 0);
-}
-
-/* return TRUE if overflow */
-static int div64(uint64_t *plow, uint64_t *phigh, uint64_t b)
-{
-    uint64_t q, r, a1, a0;
-    int i, qb, ab;
-
-    a0 = *plow;
-    a1 = *phigh;
-    if (a1 == 0) {
-        q = a0 / b;
-        r = a0 % b;
-        *plow = q;
-        *phigh = r;
-    } else {
-        if (a1 >= b) {
-            return 1;
-        }
-        /* XXX: use a better algorithm */
-        for (i = 0; i < 64; i++) {
-            ab = a1 >> 63;
-            a1 = (a1 << 1) | (a0 >> 63);
-            if (ab || a1 >= b) {
-                a1 -= b;
-                qb = 1;
-            } else {
-                qb = 0;
-            }
-            a0 = (a0 << 1) | qb;
-        }
-#if defined(DEBUG_MULDIV)
-        printf("div: 0x%016" PRIx64 "%016" PRIx64 " / 0x%016" PRIx64
-               ": q=0x%016" PRIx64 " r=0x%016" PRIx64 "\n",
-               *phigh, *plow, b, a0, a1);
-#endif
-        *plow = a0;
-        *phigh = a1;
-    }
-    return 0;
-}
-
-/* return TRUE if overflow */
-static int idiv64(uint64_t *plow, uint64_t *phigh, int64_t b)
-{
-    int sa, sb;
-
-    sa = ((int64_t)*phigh < 0);
-    if (sa) {
-        neg128(plow, phigh);
-    }
-    sb = (b < 0);
-    if (sb) {
-        b = -b;
-    }
-    if (div64(plow, phigh, b) != 0) {
-        return 1;
-    }
-    if (sa ^ sb) {
-        if (*plow > (1ULL << 63)) {
-            return 1;
-        }
-        *plow = -*plow;
-    } else {
-        if (*plow >= (1ULL << 63)) {
-            return 1;
-        }
-    }
-    if (sa) {
-        *phigh = -*phigh;
-    }
-    return 0;
-}
-
-void helper_mulq_EAX_T0(target_ulong t0)
-{
-    uint64_t r0, r1;
-
-    mulu64(&r0, &r1, EAX, t0);
-    EAX = r0;
-    EDX = r1;
-    CC_DST = r0;
-    CC_SRC = r1;
-}
-
-void helper_imulq_EAX_T0(target_ulong t0)
-{
-    uint64_t r0, r1;
-
-    muls64(&r0, &r1, EAX, t0);
-    EAX = r0;
-    EDX = r1;
-    CC_DST = r0;
-    CC_SRC = ((int64_t)r1 != ((int64_t)r0 >> 63));
-}
-
-target_ulong helper_imulq_T0_T1(target_ulong t0, target_ulong t1)
-{
-    uint64_t r0, r1;
-
-    muls64(&r0, &r1, t0, t1);
-    CC_DST = r0;
-    CC_SRC = ((int64_t)r1 != ((int64_t)r0 >> 63));
-    return r0;
-}
-
-void helper_divq_EAX(target_ulong t0)
-{
-    uint64_t r0, r1;
-
-    if (t0 == 0) {
-        raise_exception(env, EXCP00_DIVZ);
-    }
-    r0 = EAX;
-    r1 = EDX;
-    if (div64(&r0, &r1, t0)) {
-        raise_exception(env, EXCP00_DIVZ);
-    }
-    EAX = r0;
-    EDX = r1;
-}
-
-void helper_idivq_EAX(target_ulong t0)
-{
-    uint64_t r0, r1;
-
-    if (t0 == 0) {
-        raise_exception(env, EXCP00_DIVZ);
-    }
-    r0 = EAX;
-    r1 = EDX;
-    if (idiv64(&r0, &r1, t0)) {
-        raise_exception(env, EXCP00_DIVZ);
-    }
-    EAX = r0;
-    EDX = r1;
-}
-#endif
-
 static void do_hlt(void)
 {
     env->hflags &= ~HF_INHIBIT_IRQ_MASK; /* needed if sti is just before */
@@ -4584,24 +4165,6 @@  void cpu_vmexit(CPUX86State *nenv, uint32_t exit_code, uint64_t exit_info_1)
 
 #endif
 
-#define SHIFT 0
-#include "shift_helper_template.h"
-#undef SHIFT
-
-#define SHIFT 1
-#include "shift_helper_template.h"
-#undef SHIFT
-
-#define SHIFT 2
-#include "shift_helper_template.h"
-#undef SHIFT
-
-#ifdef TARGET_X86_64
-#define SHIFT 3
-#include "shift_helper_template.h"
-#undef SHIFT
-#endif
-
 /* temporary wrappers */
 #if defined(CONFIG_USER_ONLY)
 #define ldub_data(addr) ldub_raw(addr)
@@ -4650,44 +4213,3 @@  WRAP_ST(uint32_t, stw_data)
 WRAP_ST(uint32_t, stl_data)
 WRAP_ST(uint64_t, stq_data)
 #undef WRAP_ST
-
-/* bit operations */
-target_ulong helper_bsf(target_ulong t0)
-{
-    int count;
-    target_ulong res;
-
-    res = t0;
-    count = 0;
-    while ((res & 1) == 0) {
-        count++;
-        res >>= 1;
-    }
-    return count;
-}
-
-target_ulong helper_lzcnt(target_ulong t0, int wordsize)
-{
-    int count;
-    target_ulong res, mask;
-
-    if (wordsize > 0 && t0 == 0) {
-        return wordsize;
-    }
-    res = t0;
-    count = TARGET_LONG_BITS - 1;
-    mask = (target_ulong)1 << (TARGET_LONG_BITS - 1);
-    while ((res & mask) == 0) {
-        count--;
-        res <<= 1;
-    }
-    if (wordsize > 0) {
-        return wordsize - 1 - count;
-    }
-    return count;
-}
-
-target_ulong helper_bsr(target_ulong t0)
-{
-    return helper_lzcnt(t0, 0);
-}