new directory structure

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@385 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 2054 insertions, 0 deletions

diff --git a/target-i386/op.c b/target-i386/op.c
new file mode 100644
index 0000000..68191f9
--- /dev/null
+++ b/target-i386/op.c
@@ -0,0 +1,2054 @@
+/*
+ *  i386 micro operations
+ * 
+ *  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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#include "exec.h"
+
+/* n must be a constant to be efficient */
+static inline int lshift(int x, int n)
+{
+    if (n >= 0)
+        return x << n;
+    else
+        return x >> (-n);
+}
+
+/* we define the various pieces of code used by the JIT */
+
+#define REG EAX
+#define REGNAME _EAX
+#include "opreg_template.h"
+#undef REG
+#undef REGNAME
+
+#define REG ECX
+#define REGNAME _ECX
+#include "opreg_template.h"
+#undef REG
+#undef REGNAME
+
+#define REG EDX
+#define REGNAME _EDX
+#include "opreg_template.h"
+#undef REG
+#undef REGNAME
+
+#define REG EBX
+#define REGNAME _EBX
+#include "opreg_template.h"
+#undef REG
+#undef REGNAME
+
+#define REG ESP
+#define REGNAME _ESP
+#include "opreg_template.h"
+#undef REG
+#undef REGNAME
+
+#define REG EBP
+#define REGNAME _EBP
+#include "opreg_template.h"
+#undef REG
+#undef REGNAME
+
+#define REG ESI
+#define REGNAME _ESI
+#include "opreg_template.h"
+#undef REG
+#undef REGNAME
+
+#define REG EDI
+#define REGNAME _EDI
+#include "opreg_template.h"
+#undef REG
+#undef REGNAME
+
+/* operations with flags */
+
+/* update flags with T0 and T1 (add/sub case) */
+void OPPROTO op_update2_cc(void)
+{
+    CC_SRC = T1;
+    CC_DST = T0;
+}
+
+/* update flags with T0 (logic operation case) */
+void OPPROTO op_update1_cc(void)
+{
+    CC_DST = T0;
+}
+
+void OPPROTO op_update_neg_cc(void)
+{
+    CC_SRC = -T0;
+    CC_DST = T0;
+}
+
+void OPPROTO op_cmpl_T0_T1_cc(void)
+{
+    CC_SRC = T1;
+    CC_DST = T0 - T1;
+}
+
+void OPPROTO op_update_inc_cc(void)
+{
+    CC_SRC = cc_table[CC_OP].compute_c();
+    CC_DST = T0;
+}
+
+void OPPROTO op_testl_T0_T1_cc(void)
+{
+    CC_DST = T0 & T1;
+}
+
+/* operations without flags */
+
+void OPPROTO op_addl_T0_T1(void)
+{
+    T0 += T1;
+}
+
+void OPPROTO op_orl_T0_T1(void)
+{
+    T0 |= T1;
+}
+
+void OPPROTO op_andl_T0_T1(void)
+{
+    T0 &= T1;
+}
+
+void OPPROTO op_subl_T0_T1(void)
+{
+    T0 -= T1;
+}
+
+void OPPROTO op_xorl_T0_T1(void)
+{
+    T0 ^= T1;
+}
+
+void OPPROTO op_negl_T0(void)
+{
+    T0 = -T0;
+}
+
+void OPPROTO op_incl_T0(void)
+{
+    T0++;
+}
+
+void OPPROTO op_decl_T0(void)
+{
+    T0--;
+}
+
+void OPPROTO op_notl_T0(void)
+{
+    T0 = ~T0;
+}
+
+void OPPROTO op_bswapl_T0(void)
+{
+    T0 = bswap32(T0);
+}
+
+/* multiply/divide */
+void OPPROTO op_mulb_AL_T0(void)
+{
+    unsigned int res;
+    res = (uint8_t)EAX * (uint8_t)T0;
+    EAX = (EAX & 0xffff0000) | res;
+    CC_SRC = (res & 0xff00);
+}
+
+void OPPROTO op_imulb_AL_T0(void)
+{
+    int res;
+    res = (int8_t)EAX * (int8_t)T0;
+    EAX = (EAX & 0xffff0000) | (res & 0xffff);
+    CC_SRC = (res != (int8_t)res);
+}
+
+void OPPROTO op_mulw_AX_T0(void)
+{
+    unsigned int res;
+    res = (uint16_t)EAX * (uint16_t)T0;
+    EAX = (EAX & 0xffff0000) | (res & 0xffff);
+    EDX = (EDX & 0xffff0000) | ((res >> 16) & 0xffff);
+    CC_SRC = res >> 16;
+}
+
+void OPPROTO op_imulw_AX_T0(void)
+{
+    int res;
+    res = (int16_t)EAX * (int16_t)T0;
+    EAX = (EAX & 0xffff0000) | (res & 0xffff);
+    EDX = (EDX & 0xffff0000) | ((res >> 16) & 0xffff);
+    CC_SRC = (res != (int16_t)res);
+}
+
+void OPPROTO op_mull_EAX_T0(void)
+{
+    uint64_t res;
+    res = (uint64_t)((uint32_t)EAX) * (uint64_t)((uint32_t)T0);
+    EAX = res;
+    EDX = res >> 32;
+    CC_SRC = res >> 32;
+}
+
+void OPPROTO op_imull_EAX_T0(void)
+{
+    int64_t res;
+    res = (int64_t)((int32_t)EAX) * (int64_t)((int32_t)T0);
+    EAX = res;
+    EDX = res >> 32;
+    CC_SRC = (res != (int32_t)res);
+}
+
+void OPPROTO op_imulw_T0_T1(void)
+{
+    int res;
+    res = (int16_t)T0 * (int16_t)T1;
+    T0 = res;
+    CC_SRC = (res != (int16_t)res);
+}
+
+void OPPROTO op_imull_T0_T1(void)
+{
+    int64_t res;
+    res = (int64_t)((int32_t)T0) * (int64_t)((int32_t)T1);
+    T0 = res;
+    CC_SRC = (res != (int32_t)res);
+}
+
+/* division, flags are undefined */
+/* XXX: add exceptions for overflow */
+
+void OPPROTO op_divb_AL_T0(void)
+{
+    unsigned int num, den, q, r;
+
+    num = (EAX & 0xffff);
+    den = (T0 & 0xff);
+    if (den == 0) {
+        EIP = PARAM1;
+        raise_exception(EXCP00_DIVZ);
+    }
+    q = (num / den) & 0xff;
+    r = (num % den) & 0xff;
+    EAX = (EAX & 0xffff0000) | (r << 8) | q;
+}
+
+void OPPROTO op_idivb_AL_T0(void)
+{
+    int num, den, q, r;
+
+    num = (int16_t)EAX;
+    den = (int8_t)T0;
+    if (den == 0) {
+        EIP = PARAM1;
+        raise_exception(EXCP00_DIVZ);
+    }
+    q = (num / den) & 0xff;
+    r = (num % den) & 0xff;
+    EAX = (EAX & 0xffff0000) | (r << 8) | q;
+}
+
+void OPPROTO op_divw_AX_T0(void)
+{
+    unsigned int num, den, q, r;
+
+    num = (EAX & 0xffff) | ((EDX & 0xffff) << 16);
+    den = (T0 & 0xffff);
+    if (den == 0) {
+        EIP = PARAM1;
+        raise_exception(EXCP00_DIVZ);
+    }
+    q = (num / den) & 0xffff;
+    r = (num % den) & 0xffff;
+    EAX = (EAX & 0xffff0000) | q;
+    EDX = (EDX & 0xffff0000) | r;
+}
+
+void OPPROTO op_idivw_AX_T0(void)
+{
+    int num, den, q, r;
+
+    num = (EAX & 0xffff) | ((EDX & 0xffff) << 16);
+    den = (int16_t)T0;
+    if (den == 0) {
+        EIP = PARAM1;
+        raise_exception(EXCP00_DIVZ);
+    }
+    q = (num / den) & 0xffff;
+    r = (num % den) & 0xffff;
+    EAX = (EAX & 0xffff0000) | q;
+    EDX = (EDX & 0xffff0000) | r;
+}
+
+void OPPROTO op_divl_EAX_T0(void)
+{
+    helper_divl_EAX_T0(PARAM1);
+}
+
+void OPPROTO op_idivl_EAX_T0(void)
+{
+    helper_idivl_EAX_T0(PARAM1);
+}
+
+/* constant load & misc op */
+
+void OPPROTO op_movl_T0_im(void)
+{
+    T0 = PARAM1;
+}
+
+void OPPROTO op_addl_T0_im(void)
+{
+    T0 += PARAM1;
+}
+
+void OPPROTO op_andl_T0_ffff(void)
+{
+    T0 = T0 & 0xffff;
+}
+
+void OPPROTO op_andl_T0_im(void)
+{
+    T0 = T0 & PARAM1;
+}
+
+void OPPROTO op_movl_T0_T1(void)
+{
+    T0 = T1;
+}
+
+void OPPROTO op_movl_T1_im(void)
+{
+    T1 = PARAM1;
+}
+
+void OPPROTO op_addl_T1_im(void)
+{
+    T1 += PARAM1;
+}
+
+void OPPROTO op_movl_T1_A0(void)
+{
+    T1 = A0;
+}
+
+void OPPROTO op_movl_A0_im(void)
+{
+    A0 = PARAM1;
+}
+
+void OPPROTO op_addl_A0_im(void)
+{
+    A0 += PARAM1;
+}
+
+void OPPROTO op_addl_A0_AL(void)
+{
+    A0 += (EAX & 0xff);
+}
+
+void OPPROTO op_andl_A0_ffff(void)
+{
+    A0 = A0 & 0xffff;
+}
+
+/* memory access */
+
+#define MEMSUFFIX
+#include "ops_mem.h"
+
+#define MEMSUFFIX _user
+#include "ops_mem.h"
+
+#define MEMSUFFIX _kernel
+#include "ops_mem.h"
+
+/* used for bit operations */
+
+void OPPROTO op_add_bitw_A0_T1(void)
+{
+    A0 += ((int32_t)T1 >> 4) << 1;
+}
+
+void OPPROTO op_add_bitl_A0_T1(void)
+{
+    A0 += ((int32_t)T1 >> 5) << 2;
+}
+
+/* indirect jump */
+
+void OPPROTO op_jmp_T0(void)
+{
+    EIP = T0;
+}
+
+void OPPROTO op_jmp_im(void)
+{
+    EIP = PARAM1;
+}
+
+void OPPROTO op_hlt(void)
+{
+    env->exception_index = EXCP_HLT;
+    cpu_loop_exit();
+}
+
+void OPPROTO op_debug(void)
+{
+    env->exception_index = EXCP_DEBUG;
+    cpu_loop_exit();
+}
+
+void OPPROTO op_raise_interrupt(void)
+{
+    int intno;
+    unsigned int next_eip;
+    intno = PARAM1;
+    next_eip = PARAM2;
+    raise_interrupt(intno, 1, 0, next_eip);
+}
+
+void OPPROTO op_raise_exception(void)
+{
+    int exception_index;
+    exception_index = PARAM1;
+    raise_exception(exception_index);
+}
+
+void OPPROTO op_into(void)
+{
+    int eflags;
+    eflags = cc_table[CC_OP].compute_all();
+    if (eflags & CC_O) {
+        raise_interrupt(EXCP04_INTO, 1, 0, PARAM1);
+    }
+    FORCE_RET();
+}
+
+void OPPROTO op_cli(void)
+{
+    env->eflags &= ~IF_MASK;
+}
+
+void OPPROTO op_sti(void)
+{
+    env->eflags |= IF_MASK;
+}
+
+void OPPROTO op_set_inhibit_irq(void)
+{
+    env->hflags |= HF_INHIBIT_IRQ_MASK;
+}
+
+void OPPROTO op_reset_inhibit_irq(void)
+{
+    env->hflags &= ~HF_INHIBIT_IRQ_MASK;
+}
+
+#if 0
+/* vm86plus instructions */
+void OPPROTO op_cli_vm(void)
+{
+    env->eflags &= ~VIF_MASK;
+}
+
+void OPPROTO op_sti_vm(void)
+{
+    env->eflags |= VIF_MASK;
+    if (env->eflags & VIP_MASK) {
+        EIP = PARAM1;
+        raise_exception(EXCP0D_GPF);
+    }
+    FORCE_RET();
+}
+#endif
+
+void OPPROTO op_boundw(void)
+{
+    int low, high, v;
+    low = ldsw((uint8_t *)A0);
+    high = ldsw((uint8_t *)A0 + 2);
+    v = (int16_t)T0;
+    if (v < low || v > high) {
+        EIP = PARAM1;
+        raise_exception(EXCP05_BOUND);
+    }
+    FORCE_RET();
+}
+
+void OPPROTO op_boundl(void)
+{
+    int low, high, v;
+    low = ldl((uint8_t *)A0);
+    high = ldl((uint8_t *)A0 + 4);
+    v = T0;
+    if (v < low || v > high) {
+        EIP = PARAM1;
+        raise_exception(EXCP05_BOUND);
+    }
+    FORCE_RET();
+}
+
+void OPPROTO op_cmpxchg8b(void)
+{
+    helper_cmpxchg8b();
+}
+
+void OPPROTO op_jmp(void)
+{
+    JUMP_TB(op_jmp, PARAM1, 0, PARAM2);
+}
+
+void OPPROTO op_movl_T0_0(void)
+{
+    T0 = 0;
+}
+
+void OPPROTO op_exit_tb(void)
+{
+    EXIT_TB();
+}
+
+/* multiple size ops */
+
+#define ldul ldl
+
+#define SHIFT 0
+#include "ops_template.h"
+#undef SHIFT
+
+#define SHIFT 1
+#include "ops_template.h"
+#undef SHIFT
+
+#define SHIFT 2
+#include "ops_template.h"
+#undef SHIFT
+
+/* sign extend */
+
+void OPPROTO op_movsbl_T0_T0(void)
+{
+    T0 = (int8_t)T0;
+}
+
+void OPPROTO op_movzbl_T0_T0(void)
+{
+    T0 = (uint8_t)T0;
+}
+
+void OPPROTO op_movswl_T0_T0(void)
+{
+    T0 = (int16_t)T0;
+}
+
+void OPPROTO op_movzwl_T0_T0(void)
+{
+    T0 = (uint16_t)T0;
+}
+
+void OPPROTO op_movswl_EAX_AX(void)
+{
+    EAX = (int16_t)EAX;
+}
+
+void OPPROTO op_movsbw_AX_AL(void)
+{
+    EAX = (EAX & 0xffff0000) | ((int8_t)EAX & 0xffff);
+}
+
+void OPPROTO op_movslq_EDX_EAX(void)
+{
+    EDX = (int32_t)EAX >> 31;
+}
+
+void OPPROTO op_movswl_DX_AX(void)
+{
+    EDX = (EDX & 0xffff0000) | (((int16_t)EAX >> 15) & 0xffff);
+}
+
+/* string ops helpers */
+
+void OPPROTO op_addl_ESI_T0(void)
+{
+    ESI += T0;
+}
+
+void OPPROTO op_addw_ESI_T0(void)
+{
+    ESI = (ESI & ~0xffff) | ((ESI + T0) & 0xffff);
+}
+
+void OPPROTO op_addl_EDI_T0(void)
+{
+    EDI += T0;
+}
+
+void OPPROTO op_addw_EDI_T0(void)
+{
+    EDI = (EDI & ~0xffff) | ((EDI + T0) & 0xffff);
+}
+
+void OPPROTO op_decl_ECX(void)
+{
+    ECX--;
+}
+
+void OPPROTO op_decw_ECX(void)
+{
+    ECX = (ECX & ~0xffff) | ((ECX - 1) & 0xffff);
+}
+
+/* push/pop */
+
+void op_pushl_T0(void)
+{
+    uint32_t offset;
+    offset = ESP - 4;
+    stl((void *)offset, T0);
+    /* modify ESP after to handle exceptions correctly */
+    ESP = offset;
+}
+
+void op_pushw_T0(void)
+{
+    uint32_t offset;
+    offset = ESP - 2;
+    stw((void *)offset, T0);
+    /* modify ESP after to handle exceptions correctly */
+    ESP = offset;
+}
+
+void op_pushl_ss32_T0(void)
+{
+    uint32_t offset;
+    offset = ESP - 4;
+    stl(env->segs[R_SS].base + offset, T0);
+    /* modify ESP after to handle exceptions correctly */
+    ESP = offset;
+}
+
+void op_pushw_ss32_T0(void)
+{
+    uint32_t offset;
+    offset = ESP - 2;
+    stw(env->segs[R_SS].base + offset, T0);
+    /* modify ESP after to handle exceptions correctly */
+    ESP = offset;
+}
+
+void op_pushl_ss16_T0(void)
+{
+    uint32_t offset;
+    offset = (ESP - 4) & 0xffff;
+    stl(env->segs[R_SS].base + offset, T0);
+    /* modify ESP after to handle exceptions correctly */
+    ESP = (ESP & ~0xffff) | offset;
+}
+
+void op_pushw_ss16_T0(void)
+{
+    uint32_t offset;
+    offset = (ESP - 2) & 0xffff;
+    stw(env->segs[R_SS].base + offset, T0);
+    /* modify ESP after to handle exceptions correctly */
+    ESP = (ESP & ~0xffff) | offset;
+}
+
+/* NOTE: ESP update is done after */
+void op_popl_T0(void)
+{
+    T0 = ldl((void *)ESP);
+}
+
+void op_popw_T0(void)
+{
+    T0 = lduw((void *)ESP);
+}
+
+void op_popl_ss32_T0(void)
+{
+    T0 = ldl(env->segs[R_SS].base + ESP);
+}
+
+void op_popw_ss32_T0(void)
+{
+    T0 = lduw(env->segs[R_SS].base + ESP);
+}
+
+void op_popl_ss16_T0(void)
+{
+    T0 = ldl(env->segs[R_SS].base + (ESP & 0xffff));
+}
+
+void op_popw_ss16_T0(void)
+{
+    T0 = lduw(env->segs[R_SS].base + (ESP & 0xffff));
+}
+
+void op_addl_ESP_4(void)
+{
+    ESP += 4;
+}
+
+void op_addl_ESP_2(void)
+{
+    ESP += 2;
+}
+
+void op_addw_ESP_4(void)
+{
+    ESP = (ESP & ~0xffff) | ((ESP + 4) & 0xffff);
+}
+
+void op_addw_ESP_2(void)
+{
+    ESP = (ESP & ~0xffff) | ((ESP + 2) & 0xffff);
+}
+
+void op_addl_ESP_im(void)
+{
+    ESP += PARAM1;
+}
+
+void op_addw_ESP_im(void)
+{
+    ESP = (ESP & ~0xffff) | ((ESP + PARAM1) & 0xffff);
+}
+
+void OPPROTO op_rdtsc(void)
+{
+    helper_rdtsc();
+}
+
+void OPPROTO op_cpuid(void)
+{
+    helper_cpuid();
+}
+
+void OPPROTO op_rdmsr(void)
+{
+    helper_rdmsr();
+}
+
+void OPPROTO op_wrmsr(void)
+{
+    helper_wrmsr();
+}
+
+/* bcd */
+
+/* XXX: exception */
+void OPPROTO op_aam(void)
+{
+    int base = PARAM1;
+    int al, ah;
+    al = EAX & 0xff;
+    ah = al / base;
+    al = al % base;
+    EAX = (EAX & ~0xffff) | al | (ah << 8);
+    CC_DST = al;
+}
+
+void OPPROTO op_aad(void)
+{
+    int base = PARAM1;
+    int al, ah;
+    al = EAX & 0xff;
+    ah = (EAX >> 8) & 0xff;
+    al = ((ah * base) + al) & 0xff;
+    EAX = (EAX & ~0xffff) | al;
+    CC_DST = al;
+}
+
+void OPPROTO op_aaa(void)
+{
+    int icarry;
+    int al, ah, af;
+    int eflags;
+
+    eflags = cc_table[CC_OP].compute_all();
+    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 OPPROTO op_aas(void)
+{
+    int icarry;
+    int al, ah, af;
+    int eflags;
+
+    eflags = cc_table[CC_OP].compute_all();
+    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 OPPROTO op_daa(void)
+{
+    int al, af, cf;
+    int eflags;
+
+    eflags = cc_table[CC_OP].compute_all();
+    cf = eflags & CC_C;
+    af = eflags & CC_A;
+    al = EAX & 0xff;
+
+    eflags = 0;
+    if (((al & 0x0f) > 9 ) || af) {
+        al = (al + 6) & 0xff;
+        eflags |= CC_A;
+    }
+    if ((al > 0x9f) || 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 OPPROTO op_das(void)
+{
+    int al, al1, af, cf;
+    int eflags;
+
+    eflags = cc_table[CC_OP].compute_all();
+    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;
+}
+
+/* segment handling */
+
+/* never use it with R_CS */
+void OPPROTO op_movl_seg_T0(void)
+{
+    load_seg(PARAM1, T0 & 0xffff, PARAM2);
+}
+
+/* faster VM86 version */
+void OPPROTO op_movl_seg_T0_vm(void)
+{
+    int selector;
+    SegmentCache *sc;
+    
+    selector = T0 & 0xffff;
+    /* env->segs[] access */
+    sc = (SegmentCache *)((char *)env + PARAM1);
+    sc->selector = selector;
+    sc->base = (void *)(selector << 4);
+}
+
+void OPPROTO op_movl_T0_seg(void)
+{
+    T0 = env->segs[PARAM1].selector;
+}
+
+void OPPROTO op_movl_A0_seg(void)
+{
+    A0 = *(unsigned long *)((char *)env + PARAM1);
+}
+
+void OPPROTO op_addl_A0_seg(void)
+{
+    A0 += *(unsigned long *)((char *)env + PARAM1);
+}
+
+void OPPROTO op_lsl(void)
+{
+    helper_lsl();
+}
+
+void OPPROTO op_lar(void)
+{
+    helper_lar();
+}
+
+/* T0: segment, T1:eip */
+void OPPROTO op_ljmp_protected_T0_T1(void)
+{
+    helper_ljmp_protected_T0_T1();
+}
+
+void OPPROTO op_lcall_real_T0_T1(void)
+{
+    helper_lcall_real_T0_T1(PARAM1, PARAM2);
+}
+
+void OPPROTO op_lcall_protected_T0_T1(void)
+{
+    helper_lcall_protected_T0_T1(PARAM1, PARAM2);
+}
+
+void OPPROTO op_iret_real(void)
+{
+    helper_iret_real(PARAM1);
+}
+
+void OPPROTO op_iret_protected(void)
+{
+    helper_iret_protected(PARAM1);
+}
+
+void OPPROTO op_lret_protected(void)
+{
+    helper_lret_protected(PARAM1, PARAM2);
+}
+
+void OPPROTO op_lldt_T0(void)
+{
+    helper_lldt_T0();
+}
+
+void OPPROTO op_ltr_T0(void)
+{
+    helper_ltr_T0();
+}
+
+/* CR registers access */
+void OPPROTO op_movl_crN_T0(void)
+{
+    helper_movl_crN_T0(PARAM1);
+}
+
+/* DR registers access */
+void OPPROTO op_movl_drN_T0(void)
+{
+    helper_movl_drN_T0(PARAM1);
+}
+
+void OPPROTO op_lmsw_T0(void)
+{
+    /* only 4 lower bits of CR0 are modified */
+    T0 = (env->cr[0] & ~0xf) | (T0 & 0xf);
+    helper_movl_crN_T0(0);
+}
+
+void OPPROTO op_invlpg_A0(void)
+{
+    helper_invlpg(A0);
+}
+
+void OPPROTO op_movl_T0_env(void)
+{
+    T0 = *(uint32_t *)((char *)env + PARAM1);
+}
+
+void OPPROTO op_movl_env_T0(void)
+{
+    *(uint32_t *)((char *)env + PARAM1) = T0;
+}
+
+void OPPROTO op_movl_env_T1(void)
+{
+    *(uint32_t *)((char *)env + PARAM1) = T1;
+}
+
+void OPPROTO op_clts(void)
+{
+    env->cr[0] &= ~CR0_TS_MASK;
+}
+
+/* flags handling */
+
+/* slow jumps cases : in order to avoid calling a function with a
+   pointer (which can generate a stack frame on PowerPC), we use
+   op_setcc to set T0 and then call op_jcc. */
+void OPPROTO op_jcc(void)
+{
+    if (T0)
+        JUMP_TB(op_jcc, PARAM1, 0, PARAM2);
+    else
+        JUMP_TB(op_jcc, PARAM1, 1, PARAM3);
+    FORCE_RET();
+}
+
+void OPPROTO op_jcc_im(void)
+{
+    if (T0)
+        EIP = PARAM1;
+    else
+        EIP = PARAM2;
+    FORCE_RET();
+}
+
+/* slow set cases (compute x86 flags) */
+void OPPROTO op_seto_T0_cc(void)
+{
+    int eflags;
+    eflags = cc_table[CC_OP].compute_all();
+    T0 = (eflags >> 11) & 1;
+}
+
+void OPPROTO op_setb_T0_cc(void)
+{
+    T0 = cc_table[CC_OP].compute_c();
+}
+
+void OPPROTO op_setz_T0_cc(void)
+{
+    int eflags;
+    eflags = cc_table[CC_OP].compute_all();
+    T0 = (eflags >> 6) & 1;
+}
+
+void OPPROTO op_setbe_T0_cc(void)
+{
+    int eflags;
+    eflags = cc_table[CC_OP].compute_all();
+    T0 = (eflags & (CC_Z | CC_C)) != 0;
+}
+
+void OPPROTO op_sets_T0_cc(void)
+{
+    int eflags;
+    eflags = cc_table[CC_OP].compute_all();
+    T0 = (eflags >> 7) & 1;
+}
+
+void OPPROTO op_setp_T0_cc(void)
+{
+    int eflags;
+    eflags = cc_table[CC_OP].compute_all();
+    T0 = (eflags >> 2) & 1;
+}
+
+void OPPROTO op_setl_T0_cc(void)
+{
+    int eflags;
+    eflags = cc_table[CC_OP].compute_all();
+    T0 = ((eflags ^ (eflags >> 4)) >> 7) & 1;
+}
+
+void OPPROTO op_setle_T0_cc(void)
+{
+    int eflags;
+    eflags = cc_table[CC_OP].compute_all();
+    T0 = (((eflags ^ (eflags >> 4)) & 0x80) || (eflags & CC_Z)) != 0;
+}
+
+void OPPROTO op_xor_T0_1(void)
+{
+    T0 ^= 1;
+}
+
+void OPPROTO op_set_cc_op(void)
+{
+    CC_OP = PARAM1;
+}
+
+#define FL_UPDATE_MASK16 (FL_UPDATE_MASK32 & 0xffff)
+
+void OPPROTO op_movl_eflags_T0(void)
+{
+    int eflags;
+    eflags = T0;
+    CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
+    DF = 1 - (2 * ((eflags >> 10) & 1));
+    /* we also update some system flags as in user mode */
+    env->eflags = (env->eflags & ~FL_UPDATE_MASK32) | 
+        (eflags & FL_UPDATE_MASK32);
+}
+
+void OPPROTO op_movw_eflags_T0(void)
+{
+    int eflags;
+    eflags = T0;
+    CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
+    DF = 1 - (2 * ((eflags >> 10) & 1));
+    /* we also update some system flags as in user mode */
+    env->eflags = (env->eflags & ~FL_UPDATE_MASK16) | 
+        (eflags & FL_UPDATE_MASK16);
+}
+
+void OPPROTO op_movl_eflags_T0_cpl0(void)
+{
+    load_eflags(T0, FL_UPDATE_CPL0_MASK);
+}
+
+void OPPROTO op_movw_eflags_T0_cpl0(void)
+{
+    load_eflags(T0, FL_UPDATE_CPL0_MASK & 0xffff);
+}
+
+#if 0
+/* vm86plus version */
+void OPPROTO op_movw_eflags_T0_vm(void)
+{
+    int eflags;
+    eflags = T0;
+    CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
+    DF = 1 - (2 * ((eflags >> 10) & 1));
+    /* we also update some system flags as in user mode */
+    env->eflags = (env->eflags & ~(FL_UPDATE_MASK16 | VIF_MASK)) |
+        (eflags & FL_UPDATE_MASK16);
+    if (eflags & IF_MASK) {
+        env->eflags |= VIF_MASK;
+        if (env->eflags & VIP_MASK) {
+            EIP = PARAM1;
+            raise_exception(EXCP0D_GPF);
+        }
+    }
+    FORCE_RET();
+}
+
+void OPPROTO op_movl_eflags_T0_vm(void)
+{
+    int eflags;
+    eflags = T0;
+    CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
+    DF = 1 - (2 * ((eflags >> 10) & 1));
+    /* we also update some system flags as in user mode */
+    env->eflags = (env->eflags & ~(FL_UPDATE_MASK32 | VIF_MASK)) |
+        (eflags & FL_UPDATE_MASK32);
+    if (eflags & IF_MASK) {
+        env->eflags |= VIF_MASK;
+        if (env->eflags & VIP_MASK) {
+            EIP = PARAM1;
+            raise_exception(EXCP0D_GPF);
+        }
+    }
+    FORCE_RET();
+}
+#endif
+
+/* XXX: compute only O flag */
+void OPPROTO op_movb_eflags_T0(void)
+{
+    int of;
+    of = cc_table[CC_OP].compute_all() & CC_O;
+    CC_SRC = (T0 & (CC_S | CC_Z | CC_A | CC_P | CC_C)) | of;
+}
+
+void OPPROTO op_movl_T0_eflags(void)
+{
+    int eflags;
+    eflags = cc_table[CC_OP].compute_all();
+    eflags |= (DF & DF_MASK);
+    eflags |= env->eflags & ~(VM_MASK | RF_MASK);
+    T0 = eflags;
+}
+
+/* vm86plus version */
+#if 0
+void OPPROTO op_movl_T0_eflags_vm(void)
+{
+    int eflags;
+    eflags = cc_table[CC_OP].compute_all();
+    eflags |= (DF & DF_MASK);
+    eflags |= env->eflags & ~(VM_MASK | RF_MASK | IF_MASK);
+    if (env->eflags & VIF_MASK)
+        eflags |= IF_MASK;
+    T0 = eflags;
+}
+#endif
+
+void OPPROTO op_cld(void)
+{
+    DF = 1;
+}
+
+void OPPROTO op_std(void)
+{
+    DF = -1;
+}
+
+void OPPROTO op_clc(void)
+{
+    int eflags;
+    eflags = cc_table[CC_OP].compute_all();
+    eflags &= ~CC_C;
+    CC_SRC = eflags;
+}
+
+void OPPROTO op_stc(void)
+{
+    int eflags;
+    eflags = cc_table[CC_OP].compute_all();
+    eflags |= CC_C;
+    CC_SRC = eflags;
+}
+
+void OPPROTO op_cmc(void)
+{
+    int eflags;
+    eflags = cc_table[CC_OP].compute_all();
+    eflags ^= CC_C;
+    CC_SRC = eflags;
+}
+
+void OPPROTO op_salc(void)
+{
+    int cf;
+    cf = cc_table[CC_OP].compute_c();
+    EAX = (EAX & ~0xff) | ((-cf) & 0xff);
+}
+
+static int compute_all_eflags(void)
+{
+    return CC_SRC;
+}
+
+static int compute_c_eflags(void)
+{
+    return CC_SRC & CC_C;
+}
+
+static int compute_c_mul(void)
+{
+    int cf;
+    cf = (CC_SRC != 0);
+    return cf;
+}
+
+static int compute_all_mul(void)
+{
+    int cf, pf, af, zf, sf, of;
+    cf = (CC_SRC != 0);
+    pf = 0; /* undefined */
+    af = 0; /* undefined */
+    zf = 0; /* undefined */
+    sf = 0; /* undefined */
+    of = cf << 11;
+    return cf | pf | af | zf | sf | of;
+}
+    
+CCTable cc_table[CC_OP_NB] = {
+    [CC_OP_DYNAMIC] = { /* should never happen */ },
+
+    [CC_OP_EFLAGS] = { compute_all_eflags, compute_c_eflags },
+
+    [CC_OP_MUL] = { compute_all_mul, compute_c_mul },
+
+    [CC_OP_ADDB] = { compute_all_addb, compute_c_addb },
+    [CC_OP_ADDW] = { compute_all_addw, compute_c_addw  },
+    [CC_OP_ADDL] = { compute_all_addl, compute_c_addl  },
+
+    [CC_OP_ADCB] = { compute_all_adcb, compute_c_adcb },
+    [CC_OP_ADCW] = { compute_all_adcw, compute_c_adcw  },
+    [CC_OP_ADCL] = { compute_all_adcl, compute_c_adcl  },
+
+    [CC_OP_SUBB] = { compute_all_subb, compute_c_subb  },
+    [CC_OP_SUBW] = { compute_all_subw, compute_c_subw  },
+    [CC_OP_SUBL] = { compute_all_subl, compute_c_subl  },
+    
+    [CC_OP_SBBB] = { compute_all_sbbb, compute_c_sbbb  },
+    [CC_OP_SBBW] = { compute_all_sbbw, compute_c_sbbw  },
+    [CC_OP_SBBL] = { compute_all_sbbl, compute_c_sbbl  },
+    
+    [CC_OP_LOGICB] = { compute_all_logicb, compute_c_logicb },
+    [CC_OP_LOGICW] = { compute_all_logicw, compute_c_logicw },
+    [CC_OP_LOGICL] = { compute_all_logicl, compute_c_logicl },
+    
+    [CC_OP_INCB] = { compute_all_incb, compute_c_incl },
+    [CC_OP_INCW] = { compute_all_incw, compute_c_incl },
+    [CC_OP_INCL] = { compute_all_incl, compute_c_incl },
+    
+    [CC_OP_DECB] = { compute_all_decb, compute_c_incl },
+    [CC_OP_DECW] = { compute_all_decw, compute_c_incl },
+    [CC_OP_DECL] = { compute_all_decl, compute_c_incl },
+    
+    [CC_OP_SHLB] = { compute_all_shlb, compute_c_shlb },
+    [CC_OP_SHLW] = { compute_all_shlw, compute_c_shlw },
+    [CC_OP_SHLL] = { compute_all_shll, compute_c_shll },
+
+    [CC_OP_SARB] = { compute_all_sarb, compute_c_sarl },
+    [CC_OP_SARW] = { compute_all_sarw, compute_c_sarl },
+    [CC_OP_SARL] = { compute_all_sarl, compute_c_sarl },
+};
+
+/* floating point support. Some of the code for complicated x87
+   functions comes from the LGPL'ed x86 emulator found in the Willows
+   TWIN windows emulator. */
+
+#if defined(__powerpc__)
+extern CPU86_LDouble copysign(CPU86_LDouble, CPU86_LDouble);
+
+/* correct (but slow) PowerPC rint() (glibc version is incorrect) */
+double qemu_rint(double x)
+{
+    double y = 4503599627370496.0;
+    if (fabs(x) >= y)
+        return x;
+    if (x < 0) 
+        y = -y;
+    y = (x + y) - y;
+    if (y == 0.0)
+        y = copysign(y, x);
+    return y;
+}
+
+#define rint qemu_rint
+#endif
+
+/* fp load FT0 */
+
+void OPPROTO op_flds_FT0_A0(void)
+{
+#ifdef USE_FP_CONVERT
+    FP_CONVERT.i32 = ldl((void *)A0);
+    FT0 = FP_CONVERT.f;
+#else
+    FT0 = ldfl((void *)A0);
+#endif
+}
+
+void OPPROTO op_fldl_FT0_A0(void)
+{
+#ifdef USE_FP_CONVERT
+    FP_CONVERT.i64 = ldq((void *)A0);
+    FT0 = FP_CONVERT.d;
+#else
+    FT0 = ldfq((void *)A0);
+#endif
+}
+
+/* helpers are needed to avoid static constant reference. XXX: find a better way */
+#ifdef USE_INT_TO_FLOAT_HELPERS
+
+void helper_fild_FT0_A0(void)
+{
+    FT0 = (CPU86_LDouble)ldsw((void *)A0);
+}
+
+void helper_fildl_FT0_A0(void)
+{
+    FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
+}
+
+void helper_fildll_FT0_A0(void)
+{
+    FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
+}
+
+void OPPROTO op_fild_FT0_A0(void)
+{
+    helper_fild_FT0_A0();
+}
+
+void OPPROTO op_fildl_FT0_A0(void)
+{
+    helper_fildl_FT0_A0();
+}
+
+void OPPROTO op_fildll_FT0_A0(void)
+{
+    helper_fildll_FT0_A0();
+}
+
+#else
+
+void OPPROTO op_fild_FT0_A0(void)
+{
+#ifdef USE_FP_CONVERT
+    FP_CONVERT.i32 = ldsw((void *)A0);
+    FT0 = (CPU86_LDouble)FP_CONVERT.i32;
+#else
+    FT0 = (CPU86_LDouble)ldsw((void *)A0);
+#endif
+}
+
+void OPPROTO op_fildl_FT0_A0(void)
+{
+#ifdef USE_FP_CONVERT
+    FP_CONVERT.i32 = (int32_t) ldl((void *)A0);
+    FT0 = (CPU86_LDouble)FP_CONVERT.i32;
+#else
+    FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
+#endif
+}
+
+void OPPROTO op_fildll_FT0_A0(void)
+{
+#ifdef USE_FP_CONVERT
+    FP_CONVERT.i64 = (int64_t) ldq((void *)A0);
+    FT0 = (CPU86_LDouble)FP_CONVERT.i64;
+#else
+    FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
+#endif
+}
+#endif
+
+/* fp load ST0 */
+
+void OPPROTO op_flds_ST0_A0(void)
+{
+    int new_fpstt;
+    new_fpstt = (env->fpstt - 1) & 7;
+#ifdef USE_FP_CONVERT
+    FP_CONVERT.i32 = ldl((void *)A0);
+    env->fpregs[new_fpstt] = FP_CONVERT.f;
+#else
+    env->fpregs[new_fpstt] = ldfl((void *)A0);
+#endif
+    env->fpstt = new_fpstt;
+    env->fptags[new_fpstt] = 0; /* validate stack entry */
+}
+
+void OPPROTO op_fldl_ST0_A0(void)
+{
+    int new_fpstt;
+    new_fpstt = (env->fpstt - 1) & 7;
+#ifdef USE_FP_CONVERT
+    FP_CONVERT.i64 = ldq((void *)A0);
+    env->fpregs[new_fpstt] = FP_CONVERT.d;
+#else
+    env->fpregs[new_fpstt] = ldfq((void *)A0);
+#endif
+    env->fpstt = new_fpstt;
+    env->fptags[new_fpstt] = 0; /* validate stack entry */
+}
+
+#ifdef USE_X86LDOUBLE
+void OPPROTO op_fldt_ST0_A0(void)
+{
+    int new_fpstt;
+    new_fpstt = (env->fpstt - 1) & 7;
+    env->fpregs[new_fpstt] = *(long double *)A0;
+    env->fpstt = new_fpstt;
+    env->fptags[new_fpstt] = 0; /* validate stack entry */
+}
+#else
+void OPPROTO op_fldt_ST0_A0(void)
+{
+    helper_fldt_ST0_A0();
+}
+#endif
+
+/* helpers are needed to avoid static constant reference. XXX: find a better way */
+#ifdef USE_INT_TO_FLOAT_HELPERS
+
+void helper_fild_ST0_A0(void)
+{
+    int new_fpstt;
+    new_fpstt = (env->fpstt - 1) & 7;
+    env->fpregs[new_fpstt] = (CPU86_LDouble)ldsw((void *)A0);
+    env->fpstt = new_fpstt;
+    env->fptags[new_fpstt] = 0; /* validate stack entry */
+}
+
+void helper_fildl_ST0_A0(void)
+{
+    int new_fpstt;
+    new_fpstt = (env->fpstt - 1) & 7;
+    env->fpregs[new_fpstt] = (CPU86_LDouble)((int32_t)ldl((void *)A0));
+    env->fpstt = new_fpstt;
+    env->fptags[new_fpstt] = 0; /* validate stack entry */
+}
+
+void helper_fildll_ST0_A0(void)
+{
+    int new_fpstt;
+    new_fpstt = (env->fpstt - 1) & 7;
+    env->fpregs[new_fpstt] = (CPU86_LDouble)((int64_t)ldq((void *)A0));
+    env->fpstt = new_fpstt;
+    env->fptags[new_fpstt] = 0; /* validate stack entry */
+}
+
+void OPPROTO op_fild_ST0_A0(void)
+{
+    helper_fild_ST0_A0();
+}
+
+void OPPROTO op_fildl_ST0_A0(void)
+{
+    helper_fildl_ST0_A0();
+}
+
+void OPPROTO op_fildll_ST0_A0(void)
+{
+    helper_fildll_ST0_A0();
+}
+
+#else
+
+void OPPROTO op_fild_ST0_A0(void)
+{
+    int new_fpstt;
+    new_fpstt = (env->fpstt - 1) & 7;
+#ifdef USE_FP_CONVERT
+    FP_CONVERT.i32 = ldsw((void *)A0);
+    env->fpregs[new_fpstt] = (CPU86_LDouble)FP_CONVERT.i32;
+#else
+    env->fpregs[new_fpstt] = (CPU86_LDouble)ldsw((void *)A0);
+#endif
+    env->fpstt = new_fpstt;
+    env->fptags[new_fpstt] = 0; /* validate stack entry */
+}
+
+void OPPROTO op_fildl_ST0_A0(void)
+{
+    int new_fpstt;
+    new_fpstt = (env->fpstt - 1) & 7;
+#ifdef USE_FP_CONVERT
+    FP_CONVERT.i32 = (int32_t) ldl((void *)A0);
+    env->fpregs[new_fpstt] = (CPU86_LDouble)FP_CONVERT.i32;
+#else
+    env->fpregs[new_fpstt] = (CPU86_LDouble)((int32_t)ldl((void *)A0));
+#endif
+    env->fpstt = new_fpstt;
+    env->fptags[new_fpstt] = 0; /* validate stack entry */
+}
+
+void OPPROTO op_fildll_ST0_A0(void)
+{
+    int new_fpstt;
+    new_fpstt = (env->fpstt - 1) & 7;
+#ifdef USE_FP_CONVERT
+    FP_CONVERT.i64 = (int64_t) ldq((void *)A0);
+    env->fpregs[new_fpstt] = (CPU86_LDouble)FP_CONVERT.i64;
+#else
+    env->fpregs[new_fpstt] = (CPU86_LDouble)((int64_t)ldq((void *)A0));
+#endif
+    env->fpstt = new_fpstt;
+    env->fptags[new_fpstt] = 0; /* validate stack entry */
+}
+
+#endif
+
+/* fp store */
+
+void OPPROTO op_fsts_ST0_A0(void)
+{
+#ifdef USE_FP_CONVERT
+    FP_CONVERT.f = (float)ST0;
+    stfl((void *)A0, FP_CONVERT.f);
+#else
+    stfl((void *)A0, (float)ST0);
+#endif
+}
+
+void OPPROTO op_fstl_ST0_A0(void)
+{
+    stfq((void *)A0, (double)ST0);
+}
+
+#ifdef USE_X86LDOUBLE
+void OPPROTO op_fstt_ST0_A0(void)
+{
+    *(long double *)A0 = ST0;
+}
+#else
+void OPPROTO op_fstt_ST0_A0(void)
+{
+    helper_fstt_ST0_A0();
+}
+#endif
+
+void OPPROTO op_fist_ST0_A0(void)
+{
+#if defined(__sparc__) && !defined(__sparc_v9__)
+    register CPU86_LDouble d asm("o0");
+#else
+    CPU86_LDouble d;
+#endif
+    int val;
+
+    d = ST0;
+    val = lrint(d);
+    if (val != (int16_t)val)
+        val = -32768;
+    stw((void *)A0, val);
+}
+
+void OPPROTO op_fistl_ST0_A0(void)
+{
+#if defined(__sparc__) && !defined(__sparc_v9__)
+    register CPU86_LDouble d asm("o0");
+#else
+    CPU86_LDouble d;
+#endif
+    int val;
+
+    d = ST0;
+    val = lrint(d);
+    stl((void *)A0, val);
+}
+
+void OPPROTO op_fistll_ST0_A0(void)
+{
+#if defined(__sparc__) && !defined(__sparc_v9__)
+    register CPU86_LDouble d asm("o0");
+#else
+    CPU86_LDouble d;
+#endif
+    int64_t val;
+
+    d = ST0;
+    val = llrint(d);
+    stq((void *)A0, val);
+}
+
+void OPPROTO op_fbld_ST0_A0(void)
+{
+    helper_fbld_ST0_A0();
+}
+
+void OPPROTO op_fbst_ST0_A0(void)
+{
+    helper_fbst_ST0_A0();
+}
+
+/* FPU move */
+
+void OPPROTO op_fpush(void)
+{
+    fpush();
+}
+
+void OPPROTO op_fpop(void)
+{
+    fpop();
+}
+
+void OPPROTO op_fdecstp(void)
+{
+    env->fpstt = (env->fpstt - 1) & 7;
+    env->fpus &= (~0x4700);
+}
+
+void OPPROTO op_fincstp(void)
+{
+    env->fpstt = (env->fpstt + 1) & 7;
+    env->fpus &= (~0x4700);
+}
+
+void OPPROTO op_fmov_ST0_FT0(void)
+{
+    ST0 = FT0;
+}
+
+void OPPROTO op_fmov_FT0_STN(void)
+{
+    FT0 = ST(PARAM1);
+}
+
+void OPPROTO op_fmov_ST0_STN(void)
+{
+    ST0 = ST(PARAM1);
+}
+
+void OPPROTO op_fmov_STN_ST0(void)
+{
+    ST(PARAM1) = ST0;
+}
+
+void OPPROTO op_fxchg_ST0_STN(void)
+{
+    CPU86_LDouble tmp;
+    tmp = ST(PARAM1);
+    ST(PARAM1) = ST0;
+    ST0 = tmp;
+}
+
+/* FPU operations */
+
+/* XXX: handle nans */
+void OPPROTO op_fcom_ST0_FT0(void)
+{
+    env->fpus &= (~0x4500);	/* (C3,C2,C0) <-- 000 */
+    if (ST0 < FT0)
+        env->fpus |= 0x100;	/* (C3,C2,C0) <-- 001 */
+    else if (ST0 == FT0)
+        env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */
+    FORCE_RET();
+}
+
+/* XXX: handle nans */
+void OPPROTO op_fucom_ST0_FT0(void)
+{
+    env->fpus &= (~0x4500);	/* (C3,C2,C0) <-- 000 */
+    if (ST0 < FT0)
+        env->fpus |= 0x100;	/* (C3,C2,C0) <-- 001 */
+    else if (ST0 == FT0)
+        env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */
+    FORCE_RET();
+}
+
+/* XXX: handle nans */
+void OPPROTO op_fcomi_ST0_FT0(void)
+{
+    int eflags;
+    eflags = cc_table[CC_OP].compute_all();
+    eflags &= ~(CC_Z | CC_P | CC_C);
+    if (ST0 < FT0)
+        eflags |= CC_C;
+    else if (ST0 == FT0)
+        eflags |= CC_Z;
+    CC_SRC = eflags;
+    FORCE_RET();
+}
+
+/* XXX: handle nans */
+void OPPROTO op_fucomi_ST0_FT0(void)
+{
+    int eflags;
+    eflags = cc_table[CC_OP].compute_all();
+    eflags &= ~(CC_Z | CC_P | CC_C);
+    if (ST0 < FT0)
+        eflags |= CC_C;
+    else if (ST0 == FT0)
+        eflags |= CC_Z;
+    CC_SRC = eflags;
+    FORCE_RET();
+}
+
+void OPPROTO op_fadd_ST0_FT0(void)
+{
+    ST0 += FT0;
+}
+
+void OPPROTO op_fmul_ST0_FT0(void)
+{
+    ST0 *= FT0;
+}
+
+void OPPROTO op_fsub_ST0_FT0(void)
+{
+    ST0 -= FT0;
+}
+
+void OPPROTO op_fsubr_ST0_FT0(void)
+{
+    ST0 = FT0 - ST0;
+}
+
+void OPPROTO op_fdiv_ST0_FT0(void)
+{
+    ST0 /= FT0;
+}
+
+void OPPROTO op_fdivr_ST0_FT0(void)
+{
+    ST0 = FT0 / ST0;
+}
+
+/* fp operations between STN and ST0 */
+
+void OPPROTO op_fadd_STN_ST0(void)
+{
+    ST(PARAM1) += ST0;
+}
+
+void OPPROTO op_fmul_STN_ST0(void)
+{
+    ST(PARAM1) *= ST0;
+}
+
+void OPPROTO op_fsub_STN_ST0(void)
+{
+    ST(PARAM1) -= ST0;
+}
+
+void OPPROTO op_fsubr_STN_ST0(void)
+{
+    CPU86_LDouble *p;
+    p = &ST(PARAM1);
+    *p = ST0 - *p;
+}
+
+void OPPROTO op_fdiv_STN_ST0(void)
+{
+    ST(PARAM1) /= ST0;
+}
+
+void OPPROTO op_fdivr_STN_ST0(void)
+{
+    CPU86_LDouble *p;
+    p = &ST(PARAM1);
+    *p = ST0 / *p;
+}
+
+/* misc FPU operations */
+void OPPROTO op_fchs_ST0(void)
+{
+    ST0 = -ST0;
+}
+
+void OPPROTO op_fabs_ST0(void)
+{
+    ST0 = fabs(ST0);
+}
+
+void OPPROTO op_fxam_ST0(void)
+{
+    helper_fxam_ST0();
+}
+
+void OPPROTO op_fld1_ST0(void)
+{
+    ST0 = f15rk[1];
+}
+
+void OPPROTO op_fldl2t_ST0(void)
+{
+    ST0 = f15rk[6];
+}
+
+void OPPROTO op_fldl2e_ST0(void)
+{
+    ST0 = f15rk[5];
+}
+
+void OPPROTO op_fldpi_ST0(void)
+{
+    ST0 = f15rk[2];
+}
+
+void OPPROTO op_fldlg2_ST0(void)
+{
+    ST0 = f15rk[3];
+}
+
+void OPPROTO op_fldln2_ST0(void)
+{
+    ST0 = f15rk[4];
+}
+
+void OPPROTO op_fldz_ST0(void)
+{
+    ST0 = f15rk[0];
+}
+
+void OPPROTO op_fldz_FT0(void)
+{
+    ST0 = f15rk[0];
+}
+
+/* associated heplers to reduce generated code length and to simplify
+   relocation (FP constants are usually stored in .rodata section) */
+
+void OPPROTO op_f2xm1(void)
+{
+    helper_f2xm1();
+}
+
+void OPPROTO op_fyl2x(void)
+{
+    helper_fyl2x();
+}
+
+void OPPROTO op_fptan(void)
+{
+    helper_fptan();
+}
+
+void OPPROTO op_fpatan(void)
+{
+    helper_fpatan();
+}
+
+void OPPROTO op_fxtract(void)
+{
+    helper_fxtract();
+}
+
+void OPPROTO op_fprem1(void)
+{
+    helper_fprem1();
+}
+
+
+void OPPROTO op_fprem(void)
+{
+    helper_fprem();
+}
+
+void OPPROTO op_fyl2xp1(void)
+{
+    helper_fyl2xp1();
+}
+
+void OPPROTO op_fsqrt(void)
+{
+    helper_fsqrt();
+}
+
+void OPPROTO op_fsincos(void)
+{
+    helper_fsincos();
+}
+
+void OPPROTO op_frndint(void)
+{
+    helper_frndint();
+}
+
+void OPPROTO op_fscale(void)
+{
+    helper_fscale();
+}
+
+void OPPROTO op_fsin(void)
+{
+    helper_fsin();
+}
+
+void OPPROTO op_fcos(void)
+{
+    helper_fcos();
+}
+
+void OPPROTO op_fnstsw_A0(void)
+{
+    int fpus;
+    fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
+    stw((void *)A0, fpus);
+}
+
+void OPPROTO op_fnstsw_EAX(void)
+{
+    int fpus;
+    fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
+    EAX = (EAX & 0xffff0000) | fpus;
+}
+
+void OPPROTO op_fnstcw_A0(void)
+{
+    stw((void *)A0, env->fpuc);
+}
+
+void OPPROTO op_fldcw_A0(void)
+{
+    int rnd_type;
+    env->fpuc = lduw((void *)A0);
+    /* set rounding mode */
+    switch(env->fpuc & RC_MASK) {
+    default:
+    case RC_NEAR:
+        rnd_type = FE_TONEAREST;
+        break;
+    case RC_DOWN:
+        rnd_type = FE_DOWNWARD;
+        break;
+    case RC_UP:
+        rnd_type = FE_UPWARD;
+        break;
+    case RC_CHOP:
+        rnd_type = FE_TOWARDZERO;
+        break;
+    }
+    fesetround(rnd_type);
+}
+
+void OPPROTO op_fclex(void)
+{
+    env->fpus &= 0x7f00;
+}
+
+void OPPROTO op_fninit(void)
+{
+    env->fpus = 0;
+    env->fpstt = 0;
+    env->fpuc = 0x37f;
+    env->fptags[0] = 1;
+    env->fptags[1] = 1;
+    env->fptags[2] = 1;
+    env->fptags[3] = 1;
+    env->fptags[4] = 1;
+    env->fptags[5] = 1;
+    env->fptags[6] = 1;
+    env->fptags[7] = 1;
+}
+
+void OPPROTO op_fnstenv_A0(void)
+{
+    helper_fstenv((uint8_t *)A0, PARAM1);
+}
+
+void OPPROTO op_fldenv_A0(void)
+{
+    helper_fldenv((uint8_t *)A0, PARAM1);
+}
+
+void OPPROTO op_fnsave_A0(void)
+{
+    helper_fsave((uint8_t *)A0, PARAM1);
+}
+
+void OPPROTO op_frstor_A0(void)
+{
+    helper_frstor((uint8_t *)A0, PARAM1);
+}
+
+/* threading support */
+void OPPROTO op_lock(void)
+{
+    cpu_lock();
+}
+
+void OPPROTO op_unlock(void)
+{
+    cpu_unlock();
+}
+