Source code of Windows XP (NT5)
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/*++
Copyright (c) 1993 Digital Equipment CorporationCopyright (c) 1993-2001 Microsoft Corporation
Module Name:
alpha_optable.h
Abstract:
Definitions for - Table of operations, their names and charactersitics Used by ntsd, windbg and acc's dissassembler
Author:
Miche Baker-Harvey (mbh) 10-Jan-1993
Revision History:
--*/
#ifndef _ALPHA_OPTABLE_
#define _ALPHA_OPTABLE_
//
// Each entry in the opTable is either for a
// + function - one option on a particular opcode
// + terminal opcode - an opcode without a function field
// the above two can both appear directly in disassembly
//
// + non terminal opcode - an opcode with a function field:
// these entries do not represent values which can be
// executed directly: they require a function entry.
//
// + invalid opcode - this is an opcode reserved to digital
//
typedef enum ENTRY_TYPE {
INVALID_ETYPE, NON_TERMINAL_ETYPE, TERMINAL_ETYPE, FUNCTION_ETYPE, NOT_AN_ETYPE
} ENTRY_TYPE;
#define NO_FUNC (ULONG)-1
typedef ULONG (* PFOPPARSE)(PSTR, PSTR *, struct _OPTBLENTRY *, PULONG64);
typedef struct _OPTBLENTRY {
union {
struct {
PCHAR _pszName; // Name of the instruction
PFOPPARSE _parsFunc; // Function to parse operands
} s0; // functions and terminal opcodes
struct {
struct _OPTBLENTRY * _funcTable; // Describes funcs for opcode
ULONG _funcTableSize; // Number of possible funcs
} s1; // non-terminal opcodes
} u;
//
// These fields describe the instruction
//
ULONG opCode; // Top 6 bits of a 32-bit alpha instr
ULONG funcCode; // Function; meaning is opcode dependent
ULONG iType; // type of the instr: branch, fp, mem...
// values are ALPHA_* in alphaops.h
ENTRY_TYPE eType; // type of this entry in the opTable
} OPTBLENTRY, * POPTBLENTRY;
//
// MBH - hack workaround:
// I tried to do this with nameless functions and structures;
// it works just fine on ALPHA, but dies on 386, so use this
// ugly hack instead.
// The name "pszAlphaName" is used instead of the more obvious
// "pszName" because other structures contain pszName.
//
#define pszAlphaName u.s0._pszName
#define parsFunc u.s0._parsFunc
#define funcTable u.s1._funcTable
#define funcTableSize u.s1._funcTableSize
POPTBLENTRY findNonTerminalEntry(ULONG);POPTBLENTRY findStringEntry(PSTR Str);POPTBLENTRY findOpCodeEntry(ULONG);char * findFuncName(POPTBLENTRY, ULONG);char * findFlagName(ULONG, ULONG);
HRESULT opTableInit(void);
//
// This structure is used for the floating point flag names.
//
#define FPFLAGS_NOT_AN_ENTRY 0xffffffff
typedef struct _FPFLAGS {
ULONG flags; // the flags on the opcode
PCHAR flagname; // the string mnemonic for the flags
} FPFLAGS, * PFPFLAGS;
#endif // _ALPHA_OPTABLE_
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