insns.h
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上传日期:2007-01-08
资源大小:535k
文件大小:4k
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C/C++
- /* insns.h header file for insns.c
- * $Id: insns.h,v 2.1 1999/05/20 06:52:05 hpa Exp $
- *
- * The Netwide Assembler is copyright (C) 1996 Simon Tatham and
- * Julian Hall. All rights reserved. The software is
- * redistributable under the licence given in the file "Licence"
- * distributed in the NASM archive.
- */
- #ifndef NASM_INSNS_H
- #define NASM_INSNS_H
- struct itemplate {
- int opcode; /* the token, passed from "parser.c" */
- int operands; /* number of operands */
- long opd[3]; /* bit flags for operand types */
- char *code; /* the code it assembles to */
- unsigned long flags; /* some flags */
- };
- /*
- * Instruction template flags. These specify which processor
- * targets the instruction is eligible for, whether it is
- * privileged or undocumented, and also specify extra error
- * checking on the matching of the instruction.
- *
- * IF_SM stands for Size Match: any operand whose size is not
- * explicitly specified by the template is `really' intended to be
- * the same size as the first size-specified operand.
- * Non-specification is tolerated in the input instruction, but
- * _wrong_ specification is not.
- *
- * IF_SM2 invokes Size Match on only the first _two_ operands, for
- * three-operand instructions such as SHLD: it implies that the
- * first two operands must match in size, but that the third is
- * required to be _unspecified_.
- *
- * IF_SB invokes Size Byte: operands with unspecified size in the
- * template are really bytes, and so no non-byte specification in
- * the input instruction will be tolerated. IF_SW similarly invokes
- * Size Word, and IF_SD invokes Size Doubleword.
- *
- * (The default state if neither IF_SM nor IF_SM2 is specified is
- * that any operand with unspecified size in the template is
- * required to have unspecified size in the instruction too...)
- */
- #define IF_SM 0x00000001UL /* size match */
- #define IF_SM2 0x00000002UL /* size match first two operands */
- #define IF_SB 0x00000004UL /* unsized operands can't be non-byte */
- #define IF_SW 0x00000008UL /* unsized operands can't be non-word */
- #define IF_SD 0x00000010UL /* unsized operands can't be nondword */
- #define IF_AR0 0x00000020UL /* SB, SW, SD applies to argument 0 */
- #define IF_AR1 0x00000040UL /* SB, SW, SD applies to argument 1 */
- #define IF_AR2 0x00000060UL /* SB, SW, SD applies to argument 2 */
- #define IF_ARMASK 0x00000060UL /* mask for unsized argument spec */
- #define IF_PRIV 0x00000100UL /* it's a privileged instruction */
- #define IF_SMM 0x00000200UL /* it's only valid in SMM */
- #define IF_PROT 0x00000400UL /* it's protected mode only */
- #define IF_UNDOC 0x00001000UL /* it's an undocumented instruction */
- #define IF_FPU 0x00002000UL /* it's an FPU instruction */
- #define IF_MMX 0x00004000UL /* it's an MMX instruction */
- #define IF_3DNOW 0x00008000UL /* it's a 3DNow! instruction */
- #define IF_SSE 0x00010000UL /* it's a SSE (KNI, MMX2) instruction */
- #define IF_PMASK 0xFF000000UL /* the mask for processor types */
- #define IF_PFMASK 0xF001FF00UL /* the mask for disassembly "prefer" */
- #define IF_8086 0x00000000UL /* 8086 instruction */
- #define IF_186 0x01000000UL /* 186+ instruction */
- #define IF_286 0x02000000UL /* 286+ instruction */
- #define IF_386 0x03000000UL /* 386+ instruction */
- #define IF_486 0x04000000UL /* 486+ instruction */
- #define IF_PENT 0x05000000UL /* Pentium instruction */
- #define IF_P6 0x06000000UL /* P6 instruction */
- #define IF_KATMAI 0x07000000UL /* Katmai instructions */
- #define IF_CYRIX 0x10000000UL /* Cyrix-specific instruction */
- #define IF_AMD 0x20000000UL /* AMD-specific instruction */
- #endif