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diff --git a/cpu-i386.h b/cpu-i386.h
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-/*
- * i386 virtual CPU header
- *
- * 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
- */
-#ifndef CPU_I386_H
-#define CPU_I386_H
-
-#include "cpu-defs.h"
-
-#define R_EAX 0
-#define R_ECX 1
-#define R_EDX 2
-#define R_EBX 3
-#define R_ESP 4
-#define R_EBP 5
-#define R_ESI 6
-#define R_EDI 7
-
-#define R_AL 0
-#define R_CL 1
-#define R_DL 2
-#define R_BL 3
-#define R_AH 4
-#define R_CH 5
-#define R_DH 6
-#define R_BH 7
-
-#define R_ES 0
-#define R_CS 1
-#define R_SS 2
-#define R_DS 3
-#define R_FS 4
-#define R_GS 5
-
-/* segment descriptor fields */
-#define DESC_G_MASK (1 << 23)
-#define DESC_B_SHIFT 22
-#define DESC_B_MASK (1 << DESC_B_SHIFT)
-#define DESC_AVL_MASK (1 << 20)
-#define DESC_P_MASK (1 << 15)
-#define DESC_DPL_SHIFT 13
-#define DESC_S_MASK (1 << 12)
-#define DESC_TYPE_SHIFT 8
-#define DESC_A_MASK (1 << 8)
-
-#define DESC_CS_MASK (1 << 11)
-#define DESC_C_MASK (1 << 10)
-#define DESC_R_MASK (1 << 9)
-
-#define DESC_E_MASK (1 << 10)
-#define DESC_W_MASK (1 << 9)
-
-/* eflags masks */
-#define CC_C 0x0001
-#define CC_P 0x0004
-#define CC_A 0x0010
-#define CC_Z 0x0040
-#define CC_S 0x0080
-#define CC_O 0x0800
-
-#define TF_SHIFT 8
-#define IOPL_SHIFT 12
-#define VM_SHIFT 17
-
-#define TF_MASK 0x00000100
-#define IF_MASK 0x00000200
-#define DF_MASK 0x00000400
-#define IOPL_MASK 0x00003000
-#define NT_MASK 0x00004000
-#define RF_MASK 0x00010000
-#define VM_MASK 0x00020000
-#define AC_MASK 0x00040000
-#define VIF_MASK 0x00080000
-#define VIP_MASK 0x00100000
-#define ID_MASK 0x00200000
-
-/* hidden flags - used internally by qemu to represent additionnal cpu
- states. Only the CPL and INHIBIT_IRQ are not redundant. We avoid
- using the IOPL_MASK, TF_MASK and VM_MASK bit position to ease oring
- with eflags. */
-/* current cpl */
-#define HF_CPL_SHIFT 0
-/* true if soft mmu is being used */
-#define HF_SOFTMMU_SHIFT 2
-/* true if hardware interrupts must be disabled for next instruction */
-#define HF_INHIBIT_IRQ_SHIFT 3
-/* 16 or 32 segments */
-#define HF_CS32_SHIFT 4
-#define HF_SS32_SHIFT 5
-/* zero base for DS, ES and SS */
-#define HF_ADDSEG_SHIFT 6
-
-#define HF_CPL_MASK (3 << HF_CPL_SHIFT)
-#define HF_SOFTMMU_MASK (1 << HF_SOFTMMU_SHIFT)
-#define HF_INHIBIT_IRQ_MASK (1 << HF_INHIBIT_IRQ_SHIFT)
-#define HF_CS32_MASK (1 << HF_CS32_SHIFT)
-#define HF_SS32_MASK (1 << HF_SS32_SHIFT)
-#define HF_ADDSEG_MASK (1 << HF_ADDSEG_SHIFT)
-
-#define CR0_PE_MASK (1 << 0)
-#define CR0_TS_MASK (1 << 3)
-#define CR0_WP_MASK (1 << 16)
-#define CR0_AM_MASK (1 << 18)
-#define CR0_PG_MASK (1 << 31)
-
-#define CR4_VME_MASK (1 << 0)
-#define CR4_PVI_MASK (1 << 1)
-#define CR4_TSD_MASK (1 << 2)
-#define CR4_DE_MASK (1 << 3)
-#define CR4_PSE_MASK (1 << 4)
-
-#define PG_PRESENT_BIT 0
-#define PG_RW_BIT 1
-#define PG_USER_BIT 2
-#define PG_PWT_BIT 3
-#define PG_PCD_BIT 4
-#define PG_ACCESSED_BIT 5
-#define PG_DIRTY_BIT 6
-#define PG_PSE_BIT 7
-#define PG_GLOBAL_BIT 8
-
-#define PG_PRESENT_MASK (1 << PG_PRESENT_BIT)
-#define PG_RW_MASK (1 << PG_RW_BIT)
-#define PG_USER_MASK (1 << PG_USER_BIT)
-#define PG_PWT_MASK (1 << PG_PWT_BIT)
-#define PG_PCD_MASK (1 << PG_PCD_BIT)
-#define PG_ACCESSED_MASK (1 << PG_ACCESSED_BIT)
-#define PG_DIRTY_MASK (1 << PG_DIRTY_BIT)
-#define PG_PSE_MASK (1 << PG_PSE_BIT)
-#define PG_GLOBAL_MASK (1 << PG_GLOBAL_BIT)
-
-#define PG_ERROR_W_BIT 1
-
-#define PG_ERROR_P_MASK 0x01
-#define PG_ERROR_W_MASK (1 << PG_ERROR_W_BIT)
-#define PG_ERROR_U_MASK 0x04
-#define PG_ERROR_RSVD_MASK 0x08
-
-#define MSR_IA32_APICBASE 0x1b
-#define MSR_IA32_APICBASE_BSP (1<<8)
-#define MSR_IA32_APICBASE_ENABLE (1<<11)
-#define MSR_IA32_APICBASE_BASE (0xfffff<<12)
-
-#define MSR_IA32_SYSENTER_CS 0x174
-#define MSR_IA32_SYSENTER_ESP 0x175
-#define MSR_IA32_SYSENTER_EIP 0x176
-
-#define EXCP00_DIVZ 0
-#define EXCP01_SSTP 1
-#define EXCP02_NMI 2
-#define EXCP03_INT3 3
-#define EXCP04_INTO 4
-#define EXCP05_BOUND 5
-#define EXCP06_ILLOP 6
-#define EXCP07_PREX 7
-#define EXCP08_DBLE 8
-#define EXCP09_XERR 9
-#define EXCP0A_TSS 10
-#define EXCP0B_NOSEG 11
-#define EXCP0C_STACK 12
-#define EXCP0D_GPF 13
-#define EXCP0E_PAGE 14
-#define EXCP10_COPR 16
-#define EXCP11_ALGN 17
-#define EXCP12_MCHK 18
-
-enum {
- CC_OP_DYNAMIC, /* must use dynamic code to get cc_op */
- CC_OP_EFLAGS, /* all cc are explicitely computed, CC_SRC = flags */
- CC_OP_MUL, /* modify all flags, C, O = (CC_SRC != 0) */
-
- CC_OP_ADDB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
- CC_OP_ADDW,
- CC_OP_ADDL,
-
- CC_OP_ADCB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
- CC_OP_ADCW,
- CC_OP_ADCL,
-
- CC_OP_SUBB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
- CC_OP_SUBW,
- CC_OP_SUBL,
-
- CC_OP_SBBB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
- CC_OP_SBBW,
- CC_OP_SBBL,
-
- CC_OP_LOGICB, /* modify all flags, CC_DST = res */
- CC_OP_LOGICW,
- CC_OP_LOGICL,
-
- CC_OP_INCB, /* modify all flags except, CC_DST = res, CC_SRC = C */
- CC_OP_INCW,
- CC_OP_INCL,
-
- CC_OP_DECB, /* modify all flags except, CC_DST = res, CC_SRC = C */
- CC_OP_DECW,
- CC_OP_DECL,
-
- CC_OP_SHLB, /* modify all flags, CC_DST = res, CC_SRC.lsb = C */
- CC_OP_SHLW,
- CC_OP_SHLL,
-
- CC_OP_SARB, /* modify all flags, CC_DST = res, CC_SRC.lsb = C */
- CC_OP_SARW,
- CC_OP_SARL,
-
- CC_OP_NB,
-};
-
-#ifdef __i386__
-#define USE_X86LDOUBLE
-#endif
-
-#ifdef USE_X86LDOUBLE
-typedef long double CPU86_LDouble;
-#else
-typedef double CPU86_LDouble;
-#endif
-
-typedef struct SegmentCache {
- uint32_t selector;
- uint8_t *base;
- uint32_t limit;
- uint32_t flags;
-} SegmentCache;
-
-typedef struct CPUX86State {
- /* standard registers */
- uint32_t regs[8];
- uint32_t eip;
- uint32_t eflags; /* eflags register. During CPU emulation, CC
- flags and DF are set to zero because they are
- stored elsewhere */
-
- /* emulator internal eflags handling */
- uint32_t cc_src;
- uint32_t cc_dst;
- uint32_t cc_op;
- int32_t df; /* D flag : 1 if D = 0, -1 if D = 1 */
- uint32_t hflags; /* hidden flags, see HF_xxx constants */
-
- /* FPU state */
- unsigned int fpstt; /* top of stack index */
- unsigned int fpus;
- unsigned int fpuc;
- uint8_t fptags[8]; /* 0 = valid, 1 = empty */
- CPU86_LDouble fpregs[8];
-
- /* emulator internal variables */
- CPU86_LDouble ft0;
- union {
- float f;
- double d;
- int i32;
- int64_t i64;
- } fp_convert;
-
- /* segments */
- SegmentCache segs[6]; /* selector values */
- SegmentCache ldt;
- SegmentCache tr;
- SegmentCache gdt; /* only base and limit are used */
- SegmentCache idt; /* only base and limit are used */
-
- /* sysenter registers */
- uint32_t sysenter_cs;
- uint32_t sysenter_esp;
- uint32_t sysenter_eip;
-
- /* exception/interrupt handling */
- jmp_buf jmp_env;
- int exception_index;
- int error_code;
- int exception_is_int;
- int exception_next_eip;
- struct TranslationBlock *current_tb; /* currently executing TB */
- uint32_t cr[5]; /* NOTE: cr1 is unused */
- uint32_t dr[8]; /* debug registers */
- int interrupt_request;
- int user_mode_only; /* user mode only simulation */
-
- /* soft mmu support */
- /* 0 = kernel, 1 = user */
- CPUTLBEntry tlb_read[2][CPU_TLB_SIZE];
- CPUTLBEntry tlb_write[2][CPU_TLB_SIZE];
-
- /* ice debug support */
- uint32_t breakpoints[MAX_BREAKPOINTS];
- int nb_breakpoints;
- int singlestep_enabled;
-
- /* user data */
- void *opaque;
-} CPUX86State;
-
-#ifndef IN_OP_I386
-void cpu_x86_outb(CPUX86State *env, int addr, int val);
-void cpu_x86_outw(CPUX86State *env, int addr, int val);
-void cpu_x86_outl(CPUX86State *env, int addr, int val);
-int cpu_x86_inb(CPUX86State *env, int addr);
-int cpu_x86_inw(CPUX86State *env, int addr);
-int cpu_x86_inl(CPUX86State *env, int addr);
-#endif
-
-CPUX86State *cpu_x86_init(void);
-int cpu_x86_exec(CPUX86State *s);
-void cpu_x86_close(CPUX86State *s);
-int cpu_x86_get_pic_interrupt(CPUX86State *s);
-
-/* this function must always be used to load data in the segment
- cache: it synchronizes the hflags with the segment cache values */
-static inline void cpu_x86_load_seg_cache(CPUX86State *env,
- int seg_reg, unsigned int selector,
- uint8_t *base, unsigned int limit,
- unsigned int flags)
-{
- SegmentCache *sc;
- unsigned int new_hflags;
-
- sc = &env->segs[seg_reg];
- sc->selector = selector;
- sc->base = base;
- sc->limit = limit;
- sc->flags = flags;
-
- /* update the hidden flags */
- new_hflags = (env->segs[R_CS].flags & DESC_B_MASK)
- >> (DESC_B_SHIFT - HF_CS32_SHIFT);
- new_hflags |= (env->segs[R_SS].flags & DESC_B_MASK)
- >> (DESC_B_SHIFT - HF_SS32_SHIFT);
- if (!(env->cr[0] & CR0_PE_MASK) || (env->eflags & VM_MASK)) {
- /* XXX: try to avoid this test. The problem comes from the
- fact that is real mode or vm86 mode we only modify the
- 'base' and 'selector' fields of the segment cache to go
- faster. A solution may be to force addseg to one in
- translate-i386.c. */
- new_hflags |= HF_ADDSEG_MASK;
- } else {
- new_hflags |= (((unsigned long)env->segs[R_DS].base |
- (unsigned long)env->segs[R_ES].base |
- (unsigned long)env->segs[R_SS].base) != 0) <<
- HF_ADDSEG_SHIFT;
- }
- env->hflags = (env->hflags &
- ~(HF_CS32_MASK | HF_SS32_MASK | HF_ADDSEG_MASK)) | new_hflags;
-}
-
-/* wrapper, just in case memory mappings must be changed */
-static inline void cpu_x86_set_cpl(CPUX86State *s, int cpl)
-{
-#if HF_CPL_MASK == 3
- s->hflags = (s->hflags & ~HF_CPL_MASK) | cpl;
-#else
-#error HF_CPL_MASK is hardcoded
-#endif
-}
-
-/* the following helpers are only usable in user mode simulation as
- they can trigger unexpected exceptions */
-void cpu_x86_load_seg(CPUX86State *s, int seg_reg, int selector);
-void cpu_x86_fsave(CPUX86State *s, uint8_t *ptr, int data32);
-void cpu_x86_frstor(CPUX86State *s, uint8_t *ptr, int data32);
-
-/* you can call this signal handler from your SIGBUS and SIGSEGV
- signal handlers to inform the virtual CPU of exceptions. non zero
- is returned if the signal was handled by the virtual CPU. */
-struct siginfo;
-int cpu_x86_signal_handler(int host_signum, struct siginfo *info,
- void *puc);
-
-/* MMU defines */
-void cpu_x86_init_mmu(CPUX86State *env);
-extern int phys_ram_size;
-extern int phys_ram_fd;
-extern uint8_t *phys_ram_base;
-
-/* used to debug */
-#define X86_DUMP_FPU 0x0001 /* dump FPU state too */
-#define X86_DUMP_CCOP 0x0002 /* dump qemu flag cache */
-void cpu_x86_dump_state(CPUX86State *env, FILE *f, int flags);
-
-#define TARGET_PAGE_BITS 12
-#include "cpu-all.h"
-
-#endif /* CPU_I386_H */
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