--- np2/i386c/ia32/cpu.h	2003/12/08 00:55:31	1.1
+++ np2/i386c/ia32/cpu.h	2011/12/21 16:33:44	1.39
@@ -1,5 +1,3 @@
-/*	$Id: cpu.h,v 1.1 2003/12/08 00:55:31 yui Exp $	*/
-
 /*
  * Copyright (c) 2002-2003 NONAKA Kimihiro
  * All rights reserved.
@@ -12,8 +10,6 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
@@ -32,21 +28,12 @@
 
 				Copyright by Yui/Studio Milmake 1999-2000
 				Copyright by Norio HATTORI 2000,2001
-				Copyright by NONAKA Kimihiro 2002-2003
+				Copyright by NONAKA Kimihiro 2002-2004
 */
 
 #ifndef IA32_CPU_CPU_H__
 #define IA32_CPU_CPU_H__
 
-#if 0		// -> compiler.h
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <strings.h>
-#include <unistd.h>
-#include <setjmp.h>
-#endif
-
 #include "interface.h"
 
 #ifdef __cplusplus
@@ -56,41 +43,39 @@ extern "C" {
 typedef union {
 #if defined(BYTESEX_LITTLE)
 	struct {
-		BYTE	l;
-		BYTE	h;
-		BYTE	_hl;
-		BYTE	_hh;
+		UINT8	l;
+		UINT8	h;
+		UINT8	_hl;
+		UINT8	_hh;
 	} b;
 	struct {
-		WORD	w;
-		WORD	_hw;
+		UINT16	w;
+		UINT16	_hw;
 	} w;
 #elif defined(BYTESEX_BIG)
 	struct {
-		BYTE	_hh;
-		BYTE	_hl;
-		BYTE	h;
-		BYTE	l;
+		UINT8	_hh;
+		UINT8	_hl;
+		UINT8	h;
+		UINT8	l;
 	} b;
 	struct {
-		WORD	_hw;
-		WORD	w;
+		UINT16	_hw;
+		UINT16	w;
 	} w;
 #endif
-	DWORD	d;
+	UINT32	d;
 } REG32;
 
+typedef struct {
+	UINT8	b[10];
+} REG80;
+
 #ifdef __cplusplus
 }
 #endif
 
-#include "cpu_io.h"
-#include "cpu_mem.h"
-#include "exception.h"
-#include "paging.h"
-#include "resolve.h"
 #include "segments.h"
-#include "task.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -119,140 +104,195 @@ enum {
 	CPU_SEGREG_NUM
 };
 
-#if 1		// パックしないとだめ？
+enum {
+	CPU_TEST_REG_NUM = 8
+};
+
+enum {
+	CPU_DEBUG_REG_NUM = 8,
+	CPU_DEBUG_REG_INDEX_NUM = 4
+};
+
+enum {
+	MAX_PREFIX = 8
+};
 
 typedef struct {
 	REG32		reg[CPU_REG_NUM];
-	WORD		sreg[CPU_SEGREG_NUM];
+	UINT16		sreg[CPU_SEGREG_NUM];
 
 	REG32		eflags;
-
 	REG32		eip;
+
 	REG32		prev_eip;
+	REG32		prev_esp;
+
+	UINT32		tr[CPU_TEST_REG_NUM];
+	UINT32		dr[CPU_DEBUG_REG_NUM];
 } CPU_REGS;
 
 typedef struct {
-	WORD		gdtr_limit;
-	DWORD		gdtr_base;
-	WORD		idtr_limit;
-	DWORD		idtr_base;
-
-	WORD		ldtr;
-	WORD		tr;
-	descriptor_t	ldtr_desc;
-	descriptor_t	tr_desc;
-
-	DWORD		cr0;
-	DWORD		cr1;
-	DWORD		cr2;
-	DWORD		cr3;
-	DWORD		cr4;
-	DWORD		mxcsr;
+	UINT16		gdtr_limit;
+	UINT16		pad0;
+	UINT32		gdtr_base;
+	UINT16		idtr_limit;
+	UINT16		pad1;
+	UINT32		idtr_base;
+
+	UINT16		ldtr;
+	UINT16		tr;
+
+	UINT32		cr0;
+	UINT32		cr1;
+	UINT32		cr2;
+	UINT32		cr3;
+	UINT32		cr4;
+	UINT32		mxcsr;
 } CPU_SYSREGS;
 
 typedef struct {
 	descriptor_t	sreg[CPU_SEGREG_NUM];
+	descriptor_t	ldtr;
+	descriptor_t	tr;
+
+	UINT32		adrsmask;
+	UINT32		ovflag;
+
+	UINT8		ss_32;
+	UINT8		resetreq;
+	UINT8		trap;
+
+	UINT8		page_wp;
 
-	DWORD		inport;
-	DWORD		ovflag;
+	UINT8		protected_mode;
+	UINT8		paging;
+	UINT8		vm86;
+	UINT8		user_mode;
 
-	BYTE		ss_32;
-	BYTE		trap;
-	BYTE		cpu_type;
-	BYTE		_dummy;
-
-	BYTE		cpl;
-	BYTE		protected_mode;
-	BYTE		paging;
-	BYTE		vm86;
+	UINT8		hlt;
+	UINT8		bp;	/* break point bitmap */
+	UINT8		bp_ev;	/* break point event */
 
-	DWORD		ioaddr;		/* I/O bitmap linear address */
-	WORD		iolimit;	/* I/O bitmap count */
+	UINT8		backout_sp;	/* backout ESP, when exception */
 
-	BYTE		nerror;		/* double fault/ triple fault */
-	BYTE		prev_exception;
+	UINT32		pde_base;
+
+	UINT32		ioaddr;		/* I/O bitmap linear address */
+	UINT16		iolimit;	/* I/O bitmap count */
+
+	UINT8		nerror;		/* double fault/ triple fault */
+	UINT8		prev_exception;
 } CPU_STAT;
 
 typedef struct {
-	BYTE		op_32;
-	BYTE		as_32;
-	BYTE		rep_used;
-	BYTE		seg_used;
-	DWORD		seg_base;
+	UINT8		op_32;
+	UINT8		as_32;
+	UINT8		rep_used;
+	UINT8		seg_used;
+	UINT32		seg_base;
 } CPU_INST;
 
-#else
+/* FPU */
+enum {
+	FPU_REG_NUM = 8
+};
 
 typedef struct {
-	REG32		reg[CPU_REG_NUM];
-	WORD		sreg[CPU_SEGREG_NUM];
+	UINT16		seg;
+	UINT16		pad;
+	UINT32		offset;
+} FPU_PTR;
 
-	REG32		eflags;
+typedef struct {
+	UINT16		control;
+	UINT16		status;
+	UINT16		op;
+
+	FPU_PTR		inst;
+	FPU_PTR		data;
+} FPU_REGS;
 
-	REG32		eip;
-	REG32		prev_eip;
-} __attribute__((packed)) CPU_REGS;
+typedef struct {
+	UINT8		valid;	/* レジスタ有効 */
+	UINT8		sign;	/* 符号 */
+	UINT8		zero;	/* ゼロ */
+	UINT8		inf;	/* ∞ */
+	UINT8		nan;	/* NaN */
+	UINT8		denorm;	/* 非正規化 */
+	SINT16		exp;	/* 指数部 */
+	UINT64		num;	/* 小数部 */
+} FP_REG;
 
 typedef struct {
-	WORD		gdtr_limit;
-	DWORD		gdtr_base;
-	WORD		idtr_limit;
-	DWORD		idtr_base;
-
-	WORD		ldtr;
-	WORD		tr;
-	descriptor_t	ldtr_desc;
-	descriptor_t	tr_desc;
-
-	DWORD		cr0;
-	DWORD		cr1;
-	DWORD		cr2;
-	DWORD		cr3;
-	DWORD		cr4;
-	DWORD		mxcsr;
-} __attribute__((packed)) CPU_SYSREGS;
+	UINT8		top;	/* スタック位置 */
+	UINT8		pc;	/* 精度 */
+	UINT8		rc;	/* 丸め */
+	UINT8		dmy[1];
+
+	FP_REG		reg[FPU_REG_NUM];
+} FPU_STAT;
 
 typedef struct {
-	descriptor_t	sreg[CPU_SEGREG_NUM];
+	CPU_REGS	cpu_regs;
+	CPU_SYSREGS	cpu_sysregs;
+	CPU_STAT	cpu_stat;
+	CPU_INST	cpu_inst;
+	CPU_INST	cpu_inst_default;
+
+#if defined(USE_FPU)
+	FPU_REGS	fpu_regs;
+	FPU_STAT	fpu_stat;
+#endif
 
-	DWORD		inport;
-	DWORD		ovflag;
+	/* protected by cpu shut */
+	UINT8		cpu_type;
+	UINT8		itfbank;
+	UINT16		ram_d0;
+	SINT32		remainclock;
+	SINT32		baseclock;
+	UINT32		clock;
+} I386STAT;
 
-	BYTE		ss_32;
-	BYTE		trap;
-	BYTE		cpu_type;
-	BYTE		_dummy;
-
-	BYTE		cpl;
-	BYTE		protected_mode;
-	BYTE		paging;
-	BYTE		vm86;
-
-	DWORD		ioaddr;		/* I/O bitmap linear address */
-	WORD		iolimit;	/* I/O bitmap count */
-
-	BYTE		nerror;		/* double fault/ triple fault */
-	BYTE		prev_exception;
-} __attribute__((packed)) CPU_STAT;
-
-typedef struct {
-	BYTE		op_32;
-	BYTE		as_32;
-	BYTE		rep_used;
-	BYTE		seg_used;
-	DWORD		seg_base;
-} __attribute__((packed)) CPU_INST;
+typedef struct {
+	UINT8		*ext;
+	UINT32		extsize;
+	UINT8		*extbase;	/* = ext - 0x100000 */
+	UINT32		extlimit16mb;	/* = extsize + 0x100000 (MAX:16MB) */
+	UINT32		extlimit4gb;	/* = extsize + 0x100000 */
+	UINT32		inport;
+	UINT8		*ems[4];
+} I386EXT;
 
-#endif
+typedef struct {
+	I386STAT	s;				/* STATsaveされる奴 */
+	I386EXT		e;
+} I386CORE;
+
+extern I386CORE		i386core;
+
+#define	CPU_STATSAVE	i386core.s
+
+#define	CPU_ADRSMASK	i386core.s.cpu_stat.adrsmask
+#define	CPU_RESETREQ	i386core.s.cpu_stat.resetreq
+
+#define	CPU_REMCLOCK	i386core.s.remainclock
+#define	CPU_BASECLOCK	i386core.s.baseclock
+#define	CPU_CLOCK	i386core.s.clock
+#define	CPU_ITFBANK	i386core.s.itfbank
+#define	CPU_RAM_D000	i386core.s.ram_d0
 
-extern CPU_REGS		cpu_regs;
-extern CPU_SYSREGS	cpu_sysregs;
-extern CPU_STAT		cpu_stat;
-extern CPU_INST		cpu_inst;
-extern CPU_INST		cpu_inst_default;
-extern BYTE 		iflags[];
+#define CPU_TYPE	i386core.s.cpu_type
+#define CPUTYPE_V30	0x01
+
+#define	CPU_EXTMEM	i386core.e.ext
+#define	CPU_EXTMEMSIZE	i386core.e.extsize
+#define	CPU_EXTMEMBASE	i386core.e.extbase
+#define	CPU_EXTLIMIT16	i386core.e.extlimit16mb
+#define	CPU_EXTLIMIT	i386core.e.extlimit4gb
+#define	CPU_INPADRS	i386core.e.inport
+#define	CPU_EMSPTR	i386core.e.ems
 
-extern jmp_buf		exec_1step_jmpbuf;
+extern sigjmp_buf	exec_1step_jmpbuf;
 
 
 /*
@@ -264,8 +304,12 @@ extern jmp_buf		exec_1step_jmpbuf;
 #define	CPU_VENDOR_3	0x6c65746e	/* "ntel" */
 
 /* version */
-#define	CPU_FAMILY	6
-#define	CPU_MODEL	1
+#define	CPU_FAMILY	4
+#if defined(USE_FPU)
+#define	CPU_MODEL	1	/* 486DX */
+#else
+#define	CPU_MODEL	2	/* 486SX */
+#endif
 #define	CPU_STEPPING	3
 
 /* feature */
@@ -301,36 +345,22 @@ extern jmp_buf		exec_1step_jmpbuf;
 /*				(1 << 29) */
 /*				(1 << 30) */
 /*				(1 << 31) */
-#ifdef USE_FPU
+#if defined(USE_FPU)
 #define	CPU_FEATURES		(CPU_FEATURE_CMOV|CPU_FEATURE_FPU)
 #else
 #define	CPU_FEATURES		(CPU_FEATURE_CMOV)
 #endif
 
 
-#define	CPU_REGS_BYTEL(n)	cpu_regs.reg[(n)].b.l
-#define	CPU_REGS_BYTEH(n)	cpu_regs.reg[(n)].b.h
-#define	CPU_REGS_WORD(n)	cpu_regs.reg[(n)].w.w
-#define	CPU_REGS_DWORD(n)	cpu_regs.reg[(n)].d
-#define	CPU_REGS_SREG(n)	cpu_regs.sreg[(n)]
-
-#define	CPU_STAT_SREG(n)	cpu_stat.sreg[(n)]
-#define	CPU_STAT_SREGBASE(n)	cpu_stat.sreg[(n)].u.seg.segbase
-#define	CPU_STAT_SREGEND(n)	cpu_stat.sreg[(n)].u.seg.segend
-#define	CPU_STAT_SREGLIMIT(n)	cpu_stat.sreg[(n)].u.seg.limit
-#define	CPU_STAT_SREG_CLEAR(n) \
-do { \
-	memset(&CPU_STAT_SREG(n), 0, sizeof(descriptor_t)); \
-} while (/*CONSTCOND*/ 0)
-#define	CPU_STAT_SREG_INIT(n) \
-do { \
-	descriptor_t sd; \
-	memset(&CPU_STAT_SREG(n), 0, sizeof(CPU_STAT_SREG(n))); \
-	memset(&sd, 0, sizeof(sd)); \
-	sd.u.seg.limit = 0xffff; \
-	CPU_SET_SEGDESC_DEFAULT(&sd, (n), 0); \
-	CPU_STAT_SREG(n) = sd; \
-} while (/*CONSTCOND*/ 0)
+#define	CPU_REGS_BYTEL(n)	CPU_STATSAVE.cpu_regs.reg[(n)].b.l
+#define	CPU_REGS_BYTEH(n)	CPU_STATSAVE.cpu_regs.reg[(n)].b.h
+#define	CPU_REGS_WORD(n)	CPU_STATSAVE.cpu_regs.reg[(n)].w.w
+#define	CPU_REGS_DWORD(n)	CPU_STATSAVE.cpu_regs.reg[(n)].d
+#define	CPU_REGS_SREG(n)	CPU_STATSAVE.cpu_regs.sreg[(n)]
+
+#define	CPU_STAT_SREG(n)	CPU_STATSAVE.cpu_stat.sreg[(n)]
+#define	CPU_STAT_SREGBASE(n)	CPU_STAT_SREG((n)).u.seg.segbase
+#define	CPU_STAT_SREGLIMIT(n)	CPU_STAT_SREG((n)).u.seg.limit
 
 
 #define CPU_AL		CPU_REGS_BYTEL(CPU_EAX_INDEX)
@@ -350,7 +380,7 @@ do { \
 #define	CPU_BP		CPU_REGS_WORD(CPU_EBP_INDEX)
 #define	CPU_SI		CPU_REGS_WORD(CPU_ESI_INDEX)
 #define	CPU_DI		CPU_REGS_WORD(CPU_EDI_INDEX)
-#define CPU_IP		cpu_regs.eip.w.w
+#define CPU_IP		CPU_STATSAVE.cpu_regs.eip.w.w
 
 #define	CPU_EAX		CPU_REGS_DWORD(CPU_EAX_INDEX)
 #define	CPU_ECX		CPU_REGS_DWORD(CPU_ECX_INDEX)
@@ -360,8 +390,9 @@ do { \
 #define	CPU_EBP		CPU_REGS_DWORD(CPU_EBP_INDEX)
 #define	CPU_ESI		CPU_REGS_DWORD(CPU_ESI_INDEX)
 #define	CPU_EDI		CPU_REGS_DWORD(CPU_EDI_INDEX)
-#define CPU_EIP		cpu_regs.eip.d
-#define CPU_PREV_EIP	cpu_regs.prev_eip.d
+#define CPU_EIP		CPU_STATSAVE.cpu_regs.eip.d
+#define CPU_PREV_EIP	CPU_STATSAVE.cpu_regs.prev_eip.d
+#define CPU_PREV_ESP	CPU_STATSAVE.cpu_regs.prev_esp.d
 
 #define	CPU_ES		CPU_REGS_SREG(CPU_ES_INDEX)
 #define	CPU_CS		CPU_REGS_SREG(CPU_CS_INDEX)
@@ -370,20 +401,27 @@ do { \
 #define	CPU_FS		CPU_REGS_SREG(CPU_FS_INDEX)
 #define	CPU_GS		CPU_REGS_SREG(CPU_GS_INDEX)
 
-#define ES_BASE		cpu_stat.sreg[CPU_ES_INDEX].u.seg.segbase
-#define CS_BASE		cpu_stat.sreg[CPU_CS_INDEX].u.seg.segbase
-#define SS_BASE		cpu_stat.sreg[CPU_SS_INDEX].u.seg.segbase
-#define DS_BASE		cpu_stat.sreg[CPU_DS_INDEX].u.seg.segbase
-#define FS_BASE		cpu_stat.sreg[CPU_FS_INDEX].u.seg.segbase
-#define GS_BASE		cpu_stat.sreg[CPU_GS_INDEX].u.seg.segbase
-
-#define CPU_EFLAG	cpu_regs.eflags.d
-#define CPU_FLAG	cpu_regs.eflags.w.w
-#define CPU_FLAGL	cpu_regs.eflags.b.l
-#define CPU_FLAGH	cpu_regs.eflags.b.h
-#define CPU_TRAP	cpu_stat.trap
-#define CPU_INPORT	cpu_stat.inport
-#define CPU_OV		cpu_stat.ovflag
+#define	CPU_ES_DESC	CPU_STAT_SREG(CPU_ES_INDEX)
+#define	CPU_CS_DESC	CPU_STAT_SREG(CPU_CS_INDEX)
+#define	CPU_SS_DESC	CPU_STAT_SREG(CPU_SS_INDEX)
+#define	CPU_DS_DESC	CPU_STAT_SREG(CPU_DS_INDEX)
+#define	CPU_FS_DESC	CPU_STAT_SREG(CPU_FS_INDEX)
+#define	CPU_GS_DESC	CPU_STAT_SREG(CPU_GS_INDEX)
+
+#define ES_BASE		CPU_STAT_SREGBASE(CPU_ES_INDEX)
+#define CS_BASE		CPU_STAT_SREGBASE(CPU_CS_INDEX)
+#define SS_BASE		CPU_STAT_SREGBASE(CPU_SS_INDEX)
+#define DS_BASE		CPU_STAT_SREGBASE(CPU_DS_INDEX)
+#define FS_BASE		CPU_STAT_SREGBASE(CPU_FS_INDEX)
+#define GS_BASE		CPU_STAT_SREGBASE(CPU_GS_INDEX)
+
+#define CPU_EFLAG	CPU_STATSAVE.cpu_regs.eflags.d
+#define CPU_FLAG	CPU_STATSAVE.cpu_regs.eflags.w.w
+#define CPU_FLAGL	CPU_STATSAVE.cpu_regs.eflags.b.l
+#define CPU_FLAGH	CPU_STATSAVE.cpu_regs.eflags.b.h
+#define CPU_TRAP	CPU_STATSAVE.cpu_stat.trap
+#define CPU_INPORT	CPU_STATSAVE.cpu_stat.inport
+#define CPU_OV		CPU_STATSAVE.cpu_stat.ovflag
 
 #define C_FLAG		(1 << 0)
 #define P_FLAG		(1 << 2)
@@ -409,32 +447,46 @@ do { \
 #define	ALL_FLAG	(SZAPC_FLAG|T_FLAG|I_FLAG|D_FLAG|O_FLAG|IOPL_FLAG|NT_FLAG)
 #define	ALL_EFLAG	(ALL_FLAG|RF_FLAG|VM_FLAG|AC_FLAG|VIF_FLAG|VIP_FLAG|ID_FLAG)
 
-#define	REAL_FLAGREG	((CPU_FLAG & 0xf7ff) | (CPU_OV ? O_FLAG : 0))
-#define	REAL_EFLAGREG	((CPU_EFLAG & 0xfffff7ff) | (CPU_OV ? O_FLAG : 0))
+#define	REAL_FLAGREG	((CPU_FLAG & 0xf7ff) | (CPU_OV ? O_FLAG : 0) | 2)
+#define	REAL_EFLAGREG	((CPU_EFLAG & 0xfffff7ff) | (CPU_OV ? O_FLAG : 0) | 2)
 
-void set_flags(WORD new_flags, WORD mask);
-void set_eflags(DWORD new_flags, DWORD mask);
+void FASTCALL set_flags(UINT16 new_flags, UINT16 mask);
+void FASTCALL set_eflags(UINT32 new_flags, UINT32 mask);
 
-#define CPU_TYPE	cpu_stat.cpu_type
-#define CPUTYPE_V30	0x01
 
-#define	CPU_INST_OP32		cpu_inst.op_32
-#define	CPU_INST_AS32		cpu_inst.as_32
-#define	CPU_INST_REPUSE		cpu_inst.rep_used
-#define	CPU_INST_SEGUSE		cpu_inst.seg_used
-#define	CPU_INST_SEGREG_INDEX	cpu_inst.seg_base
+#define	CPU_INST_OP32		CPU_STATSAVE.cpu_inst.op_32
+#define	CPU_INST_AS32		CPU_STATSAVE.cpu_inst.as_32
+#define	CPU_INST_REPUSE		CPU_STATSAVE.cpu_inst.rep_used
+#define	CPU_INST_SEGUSE		CPU_STATSAVE.cpu_inst.seg_used
+#define	CPU_INST_SEGREG_INDEX	CPU_STATSAVE.cpu_inst.seg_base
 #define	DS_FIX	(!CPU_INST_SEGUSE ? CPU_DS_INDEX : CPU_INST_SEGREG_INDEX)
 #define	SS_FIX	(!CPU_INST_SEGUSE ? CPU_SS_INDEX : CPU_INST_SEGREG_INDEX)
 
-#define	CPU_STAT_CS_BASE	cpu_stat.sreg[CPU_CS_INDEX].u.seg.limit
-#define	CPU_STAT_CS_LIMIT	cpu_stat.sreg[CPU_CS_INDEX].u.seg.limit
-#define	CPU_STAT_CS_END		cpu_stat.sreg[CPU_CS_INDEX].u.seg.segend
-
-#define	CPU_STAT_SS32		cpu_stat.ss_32
-#define	CPU_STAT_PM		cpu_stat.protected_mode
-#define	CPU_STAT_VM86		cpu_stat.vm86
-#define	CPU_STAT_PAGING		cpu_stat.paging
-#define	CPU_STAT_CPL		cpu_stat.cpl
+#define	CPU_STAT_CS_BASE	CPU_STAT_SREGBASE(CPU_CS_INDEX)
+#define	CPU_STAT_CS_LIMIT	CPU_STAT_SREGLIMIT(CPU_CS_INDEX)
+
+#define	CPU_STAT_ADRSMASK	CPU_STATSAVE.cpu_stat.adrsmask
+#define	CPU_STAT_SS32		CPU_STATSAVE.cpu_stat.ss_32
+#define	CPU_STAT_RESETREQ	CPU_STATSAVE.cpu_stat.resetreq
+#define	CPU_STAT_PM		CPU_STATSAVE.cpu_stat.protected_mode
+#define	CPU_STAT_PAGING		CPU_STATSAVE.cpu_stat.paging
+#define	CPU_STAT_VM86		CPU_STATSAVE.cpu_stat.vm86
+#define	CPU_STAT_WP		CPU_STATSAVE.cpu_stat.page_wp
+#define	CPU_STAT_CPL		CPU_CS_DESC.rpl
+#define	CPU_STAT_USER_MODE	CPU_STATSAVE.cpu_stat.user_mode
+#define	CPU_STAT_PDE_BASE	CPU_STATSAVE.cpu_stat.pde_base
+#define	CPU_SET_PREV_ESP1(esp) \
+do { \
+	CPU_STATSAVE.cpu_stat.backout_sp = 1; \
+	CPU_PREV_ESP = (esp); \
+} while (/*CONSTCOND*/0)
+#define	CPU_SET_PREV_ESP()	CPU_SET_PREV_ESP1(CPU_ESP)
+#define	CPU_CLEAR_PREV_ESP() \
+do { \
+	CPU_STATSAVE.cpu_stat.backout_sp = 0; \
+} while (/*CONSTCOND*/0)
+
+#define	CPU_STAT_HLT		CPU_STATSAVE.cpu_stat.hlt
 
 #define	CPU_STAT_IOPL		((CPU_EFLAG & IOPL_FLAG) >> 12)
 #define	CPU_IOPL0		0
@@ -442,54 +494,71 @@ void set_eflags(DWORD new_flags, DWORD m
 #define	CPU_IOPL2		2
 #define	CPU_IOPL3		3
 
-#define	CPU_STAT_IOADDR		cpu_stat.ioaddr
-#define	CPU_STAT_IOLIMIT	cpu_stat.iolimit
+#define	CPU_STAT_IOADDR		CPU_STATSAVE.cpu_stat.ioaddr
+#define	CPU_STAT_IOLIMIT	CPU_STATSAVE.cpu_stat.iolimit
+
+#define	CPU_STAT_PREV_EXCEPTION		CPU_STATSAVE.cpu_stat.prev_exception
+#define	CPU_STAT_EXCEPTION_COUNTER		CPU_STATSAVE.cpu_stat.nerror
+#define	CPU_STAT_EXCEPTION_COUNTER_INC()	CPU_STATSAVE.cpu_stat.nerror++
+#define	CPU_STAT_EXCEPTION_COUNTER_CLEAR()	CPU_STATSAVE.cpu_stat.nerror = 0
 
-#define	CPU_STAT_NERROR		cpu_stat.nerror
-#define	CPU_STAT_PREV_EXCEPTION	cpu_stat.prev_exception
+#define	CPU_MODE_SUPERVISER	0
+#define	CPU_MODE_USER		(1 << 3)
 
-#define CPU_CLI		do { CPU_FLAG &= ~I_FLAG;	\
-					CPU_TRAP = 0; } while (/*CONSTCOND*/ 0)
-#define CPU_STI		do { CPU_FLAG |= I_FLAG;	\
-					CPU_TRAP = (CPU_FLAG >> 8) & 1; } while (/*CONSTCOND*/0)
-
-#define CPU_GDTR_LIMIT	cpu_sysregs.gdtr_limit
-#define CPU_GDTR_BASE	cpu_sysregs.gdtr_base
-#define CPU_IDTR_LIMIT	cpu_sysregs.idtr_limit
-#define CPU_IDTR_BASE	cpu_sysregs.idtr_base
-#define CPU_LDTR	cpu_sysregs.ldtr
-#define CPU_LDTR_DESC	cpu_sysregs.ldtr_desc
-#define CPU_LDTR_BASE	cpu_sysregs.ldtr_desc.u.seg.segbase
-#define CPU_LDTR_END	cpu_sysregs.ldtr_desc.u.seg.segend
-#define CPU_LDTR_LIMIT	cpu_sysregs.ldtr_desc.u.seg.limit
-#define CPU_TR		cpu_sysregs.tr
-#define CPU_TR_DESC	cpu_sysregs.tr_desc
-#define CPU_TR_BASE	cpu_sysregs.tr_desc.u.seg.segbase
-#define CPU_TR_END	cpu_sysregs.tr_desc.u.seg.segend
-#define CPU_TR_LIMIT	cpu_sysregs.tr_desc.u.seg.limit
-
-#define CPU_CR0		cpu_sysregs.cr0
-#define CPU_CR1		cpu_sysregs.cr1
-#define CPU_CR2		cpu_sysregs.cr2
-#define CPU_CR3		cpu_sysregs.cr3
-#define CPU_CR4		cpu_sysregs.cr4
-#define CPU_MXCSR	cpu_sysregs.mxcsr
-
-#define	CPU_CR0_PE	(1 << 0)
-#define	CPU_CR0_MP	(1 << 1)
-#define	CPU_CR0_EM	(1 << 2)
-#define	CPU_CR0_TS	(1 << 3)
-#define	CPU_CR0_ET	(1 << 4)
-#define	CPU_CR0_NE	(1 << 5)
-#define	CPU_CR0_WP	(1 << 16)
-#define	CPU_CR0_AM	(1 << 18)
-#define	CPU_CR0_NW	(1 << 29)
-#define	CPU_CR0_CD	(1 << 30)
-#define	CPU_CR0_PG	(1 << 31)
-
-#define	CPU_CR3_PD_MASK	0xfffff000
-#define	CPU_CR3_PWT	(1 << 3)
-#define	CPU_CR3_PCD	(1 << 4)
+#define CPU_CLI \
+do { \
+	CPU_FLAG &= ~I_FLAG; \
+	CPU_TRAP = 0; \
+} while (/*CONSTCOND*/0)
+
+#define CPU_STI \
+do { \
+	CPU_FLAG |= I_FLAG; \
+	CPU_TRAP = (CPU_FLAG & (I_FLAG|T_FLAG)) == (I_FLAG|T_FLAG) ; \
+} while (/*CONSTCOND*/0)
+
+#define CPU_GDTR_LIMIT	CPU_STATSAVE.cpu_sysregs.gdtr_limit
+#define CPU_GDTR_BASE	CPU_STATSAVE.cpu_sysregs.gdtr_base
+#define CPU_IDTR_LIMIT	CPU_STATSAVE.cpu_sysregs.idtr_limit
+#define CPU_IDTR_BASE	CPU_STATSAVE.cpu_sysregs.idtr_base
+#define CPU_LDTR	CPU_STATSAVE.cpu_sysregs.ldtr
+#define CPU_LDTR_DESC	CPU_STATSAVE.cpu_stat.ldtr
+#define CPU_LDTR_BASE	CPU_LDTR_DESC.u.seg.segbase
+#define CPU_LDTR_LIMIT	CPU_LDTR_DESC.u.seg.limit
+#define CPU_TR		CPU_STATSAVE.cpu_sysregs.tr
+#define CPU_TR_DESC	CPU_STATSAVE.cpu_stat.tr
+#define CPU_TR_BASE	CPU_TR_DESC.u.seg.segbase
+#define CPU_TR_LIMIT	CPU_TR_DESC.u.seg.limit
+
+/*
+ * control register
+ */
+#define CPU_MSW			CPU_STATSAVE.cpu_sysregs.cr0
+
+#define CPU_CR0			CPU_STATSAVE.cpu_sysregs.cr0
+#define CPU_CR1			CPU_STATSAVE.cpu_sysregs.cr1
+#define CPU_CR2			CPU_STATSAVE.cpu_sysregs.cr2
+#define CPU_CR3			CPU_STATSAVE.cpu_sysregs.cr3
+#define CPU_CR4			CPU_STATSAVE.cpu_sysregs.cr4
+#define CPU_MXCSR		CPU_STATSAVE.cpu_sysregs.mxcsr
+
+#define	CPU_CR0_PE		(1 << 0)
+#define	CPU_CR0_MP		(1 << 1)
+#define	CPU_CR0_EM		(1 << 2)
+#define	CPU_CR0_TS		(1 << 3)
+#define	CPU_CR0_ET		(1 << 4)
+#define	CPU_CR0_NE		(1 << 5)
+#define	CPU_CR0_WP		(1 << 16)
+#define	CPU_CR0_AM		(1 << 18)
+#define	CPU_CR0_NW		(1 << 29)
+#define	CPU_CR0_CD		(1 << 30)
+#define	CPU_CR0_PG		(1 << 31)
+#define	CPU_CR0_ALL		(CPU_CR0_PE|CPU_CR0_MP|CPU_CR0_EM|CPU_CR0_TS|CPU_CR0_ET|CPU_CR0_NE|CPU_CR0_WP|CPU_CR0_AM|CPU_CR0_NW|CPU_CR0_CD|CPU_CR0_PG)
+
+#define	CPU_CR3_PD_MASK		0xfffff000
+#define	CPU_CR3_PWT		(1 << 3)
+#define	CPU_CR3_PCD		(1 << 4)
+#define	CPU_CR3_MASK		(CPU_CR3_PD_MASK|CPU_CR3_PWT|CPU_CR3_PCD)
 
 #define	CPU_CR4_VME		(1 << 0)
 #define	CPU_CR4_PVI		(1 << 1)
@@ -503,25 +572,60 @@ void set_eflags(DWORD new_flags, DWORD m
 #define	CPU_CR4_OSFXSR		(1 << 9)
 #define	CPU_CR4_OSXMMEXCPT	(1 << 10)
 
-
-void ia32_initialize(void);
+/*
+ * debug register
+ */
+#define	CPU_DR(r)		CPU_STATSAVE.cpu_regs.dr[(r)]
+#define	CPU_DR6			CPU_DR(6)
+#define	CPU_DR7			CPU_DR(7)
+
+#define	CPU_STAT_BP		CPU_STATSAVE.cpu_stat.bp
+#define	CPU_STAT_BP_EVENT	CPU_STATSAVE.cpu_stat.bp_ev
+#define	CPU_STAT_BP_EVENT_B(r)	(1 << (r))
+#define	CPU_STAT_BP_EVENT_DR	(1 << 4)	/* fault */
+#define	CPU_STAT_BP_EVENT_STEP	(1 << 5)	/* as CPU_TRAP */
+#define	CPU_STAT_BP_EVENT_TASK	(1 << 6)
+#define	CPU_STAT_BP_EVENT_RF	(1 << 7)	/* RF_FLAG */
+
+#define	CPU_DR6_B(r)		(1 << (r))
+#define	CPU_DR6_BD		(1 << 13)
+#define	CPU_DR6_BS		(1 << 14)
+#define	CPU_DR6_BT		(1 << 15)
+
+#define	CPU_DR7_L(r)		(1 << ((r) * 2))
+#define	CPU_DR7_G(r)		(1 << ((r) * 2 + 1))
+#define	CPU_DR7_LE		(1 << 8)
+#define	CPU_DR7_GE		(1 << 9)
+#define	CPU_DR7_GD		(1 << 13)
+#define	CPU_DR7_RW(r)		(3 << ((r) * 4 + 16))
+#define	CPU_DR7_LEN(r)		(3 << ((r) * 4 + 16 + 2))
+
+#define	CPU_DR7_GET_RW(r)	((CPU_DR7) >> (16 + (r) * 4))
+#define	CPU_DR7_RW_CODE		0
+#define	CPU_DR7_RW_RO		1
+#define	CPU_DR7_RW_IO		2
+#define	CPU_DR7_RW_RW		3
+
+#define	CPU_DR7_GET_LEN(r)	((CPU_DR7) >> (16 + 2 + (r) * 4))
+
+void ia32_init(void);
+void ia32_initreg(void);
+void ia32_setextsize(UINT32 size);
+void ia32_setemm(UINT frame, UINT32 addr);
 
 void ia32reset(void);
+void ia32shut(void);
+void ia32a20enable(BOOL enable);
 void ia32(void);
-void ia32withtrap(void);
-void ia32withdma(void);
-
 void ia32_step(void);
-void CPUCALL ia32_interrupt(BYTE vect);
-void CPUCALL ia32_exception(DWORD vect, DWORD p1, DWORD p2);
+void CPUCALL ia32_interrupt(int vect, int soft);
+void CPUCALL ia32_exception(int vect, int p1, int p2);
 
 void exec_1step(void);
 #define	INST_PREFIX	(1 << 0)
 #define	INST_STRING	(1 << 1)
 #define	REP_CHECKZF	(1 << 7)
 
-void disasm(WORD cs, DWORD maddr);
-
 void ia32_printf(const char *buf, ...);
 void ia32_warning(const char *buf, ...);
 void ia32_panic(const char *buf, ...);
@@ -530,58 +634,157 @@ void ia32_bioscall(void);
 
 void FASTCALL change_pm(BOOL onoff);
 void FASTCALL change_vm(BOOL onoff);
+void FASTCALL change_pg(BOOL onoff);
+
+void FASTCALL set_cr3(UINT32 new_cr3);
+void FASTCALL set_cpl(int new_cpl);
 
-extern BYTE szpcflag[0x200];
-extern BYTE szpflag_w[0x10000];
+extern const UINT8 iflags[];
+#define	szpcflag	iflags
+extern UINT8 szpflag_w[0x10000];
+
+extern UINT8 *reg8_b20[0x100];
+extern UINT8 *reg8_b53[0x100];
+extern UINT16 *reg16_b20[0x100];
+extern UINT16 *reg16_b53[0x100];
+extern UINT32 *reg32_b20[0x100];
+extern UINT32 *reg32_b53[0x100];
+
+extern const char *reg8_str[8];
+extern const char *reg16_str[8];
+extern const char *reg32_str[8];
+
+char *cpu_reg2str(void);
+#if defined(USE_FPU)
+char *fpu_reg2str(void);
+#endif
+void put_cpuinfo(void);
+void dbg_printf(const char *str, ...);
 
-extern BYTE  *reg8_b20[0x100];
-extern BYTE  *reg8_b53[0x100];
-extern WORD  *reg16_b20[0x100];
-extern WORD  *reg16_b53[0x100];
-extern DWORD *reg32_b20[0x100];
-extern DWORD *reg32_b53[0x100];
 
+/*
+ * FPU
+ */
+#define	FPU_REGS		CPU_STATSAVE.fpu_regs
+#define	FPU_CTRLWORD		FPU_REGS.control
+#define	FPU_STATUSWORD		FPU_REGS.status
+#define	FPU_INSTPTR		FPU_REGS.inst
+#define	FPU_DATAPTR		FPU_REGS.data
+#define	FPU_LASTINSTOP		FPU_REGS.op
+#define	FPU_INSTPTR_OFFSET	FPU_REGS.inst.offset
+#define	FPU_INSTPTR_SEG		FPU_REGS.inst.seg
+#define	FPU_DATAPTR_OFFSET	FPU_REGS.data.offset
+#define	FPU_DATAPTR_SEG		FPU_REGS.data.seg
+
+#define	FPU_STAT		CPU_STATSAVE.fpu_stat
+#define	FPU_STAT_TOP		FPU_STAT.top
+#define	FPU_STAT_PC		FPU_STAT.pc
+#define	FPU_STAT_RC		FPU_STAT.rc
+
+#define	FPU_ST(i)		FPU_STAT.reg[((i) + FPU_STAT_TOP) & 7]
+#define	FPU_REG(i)		FPU_STAT.reg[i]
+
+/* FPU status register */
+#define	FP_IE_FLAG	(1 << 0)	/* 無効な動作 */
+#define	FP_DE_FLAG	(1 << 1)	/* デノーマライズド・オペランド */
+#define	FP_ZE_FLAG	(1 << 2)	/* ゼロによる除算 */
+#define	FP_OE_FLAG	(1 << 3)	/* オーバーフロー */
+#define	FP_UE_FLAG	(1 << 4)	/* アンダーフロー */
+#define	FP_PE_FLAG	(1 << 5)	/* 精度 */
+#define	FP_SF_FLAG	(1 << 6)	/* スタックフォルト */
+#define	FP_ES_FLAG	(1 << 7)	/* エラーサマリステータス */
+#define	FP_C0_FLAG	(1 << 8)	/* 条件コード */
+#define	FP_C1_FLAG	(1 << 9)	/* 条件コード */
+#define	FP_C2_FLAG	(1 << 10)	/* 条件コード */
+#define	FP_TOP_FLAG	(7 << 11)	/* スタックポイントのトップ */
+#define	FP_C3_FLAG	(1 << 14)	/* 条件コード */
+#define	FP_B_FLAG	(1 << 15)	/* FPU ビジー */
+
+#define	FP_TOP_SHIFT	11
+#define	FP_TOP_GET()	((FPU_STATUSWORD & FP_TOP_FLAG) >> FP_TOP_SHIFT)
+#define	FP_TOP_SET(v)	((FPU_STATUSWORD & ~FP_TOP_FLAG) | ((v) << FP_TOP_SHIFT))
 
-// ---- i286
+#define	FPU_STAT_TOP_INC() \
+do { \
+	FPU_STAT.top = (FPU_STAT.top + 1) & 7; \
+} while (/*CONSTCOND*/0)
+#define	FPU_STAT_TOP_DEC() \
+do { \
+	FPU_STAT.top = (FPU_STAT.top - 1) & 7; \
+} while (/*CONSTCOND*/0)
 
-typedef struct {
-	SINT32	remainclock;
-	SINT32	baseclock;
-	UINT32	clock;
+/* FPU control register */
+#define	FP_CTRL_PC_SHIFT	8	/* 精度制御 */
+#define	FP_CTRL_RC_SHIFT	10	/* 丸め制御 */
+
+#define	FP_CTRL_PC_24		0	/* 単精度 */
+#define	FP_CTRL_PC_53		1	/* 倍精度 */
+#define	FP_CTRL_PC_64		3	/* 拡張精度 */
+
+#define	FP_CTRL_RC_NEAREST_EVEN	0
+#define	FP_CTRL_RC_DOWN		1
+#define	FP_CTRL_RC_UP		2
+#define	FP_CTRL_RC_TO_ZERO	3
 
-	UINT32	adrsmask;			// ?
-	UINT32	inport;				// ?
-	UINT8	resetreq;
-	UINT8	itfbank;
-} I386STAT;
 
-typedef struct {							// for ver0.73
-	BYTE	*ext;
-	UINT32	extsize;
-} I386EXT;
+/*
+ * Misc.
+ */
+void memory_dump(int idx, UINT32 madr);
+void gdtr_dump(UINT32 base, UINT limit);
+void idtr_dump(UINT32 base, UINT limit);
+void ldtr_dump(UINT32 base, UINT limit);
+void tr_dump(UINT16 selector, UINT32 base, UINT limit);
+UINT32 pde_dump(UINT32 base, int idx);
+void segdesc_dump(descriptor_t *sdp);
+UINT32 convert_laddr_to_paddr(UINT32 laddr);
+UINT32 convert_vaddr_to_paddr(unsigned int idx, UINT32 offset);
 
+/*
+ * disasm
+ */
+/* context */
 typedef struct {
-	I386STAT	s;							// STATsaveされる奴
-	I386EXT		e;
-} I386CORE;
+	UINT32 val;
+
+	UINT32 eip;
+	BOOL op32;
+	BOOL as32;
+
+	UINT32 baseaddr;
+	UINT8 opcode[3];
+	UINT8 modrm;
+	UINT8 sib;
 
-extern	I386CORE	i386core;
+	BOOL useseg;
+	int seg;
 
-#define	CPU_STATSAVE		i386core.s
+	UINT8 opbyte[32];
+	int nopbytes;
 
-#define	CPU_REMCLOCK		i386core.s.remainclock
-#define	CPU_BASECLOCK		i386core.s.baseclock
-#define	CPU_CLOCK		i386core.s.clock
-#define	CPU_ADRSMASK		i386core.s.adrsmask
-#define	CPU_RESETREQ		i386core.s.resetreq
-#define	CPU_ITFBANK		i386core.s.itfbank
-#define	CPU_INPADRS		i386core.s.inport
+	char str[256];
+	size_t remain;
 
-#define	CPU_EXTMEM		i386core.e.ext
-#define	CPU_EXTMEMSIZE		i386core.e.extsize
+	char *next;
+	char *prefix;
+	char *op;
+	char *arg[3];
+	int narg;
+
+	char pad;
+} disasm_context_t;
+
+int disasm(UINT32 *eip, disasm_context_t *ctx);
 
 #ifdef __cplusplus
 }
 #endif
 
+#include "cpu_io.h"
+#include "cpu_mem.h"
+#include "exception.h"
+#include "paging.h"
+#include "resolve.h"
+#include "task.h"
+
 #endif	/* !IA32_CPU_CPU_H__ */