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author | K. Richard Pixley <rich@cygnus> | 1992-02-17 15:54:49 +0000 |
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committer | K. Richard Pixley <rich@cygnus> | 1992-02-17 15:54:49 +0000 |
commit | 542e1629fdd4df8920511c4eb2df15bb83feb13b (patch) | |
tree | f1b70b61ce3707e08b2f43081adfd3b4850654f3 /gas/config/tc-i386.h | |
parent | af2136245013fad2f72249258452d5f7154d5719 (diff) | |
download | fsf-binutils-gdb-542e1629fdd4df8920511c4eb2df15bb83feb13b.zip fsf-binutils-gdb-542e1629fdd4df8920511c4eb2df15bb83feb13b.tar.gz fsf-binutils-gdb-542e1629fdd4df8920511c4eb2df15bb83feb13b.tar.bz2 |
fighting bitrot in a major way
Diffstat (limited to 'gas/config/tc-i386.h')
-rw-r--r-- | gas/config/tc-i386.h | 78 |
1 files changed, 30 insertions, 48 deletions
diff --git a/gas/config/tc-i386.h b/gas/config/tc-i386.h index b68f956..6e89dfc 100644 --- a/gas/config/tc-i386.h +++ b/gas/config/tc-i386.h @@ -1,5 +1,5 @@ -/* i386.h -- Header file for i386.c - Copyright (C) 1989, Free Software Foundation. +/* tc-i386.h -- Header file for tc-i386.c + Copyright (C) 1989, 1992 Free Software Foundation. This file is part of GAS, the GNU Assembler. @@ -22,16 +22,19 @@ #define AOUT_MACHTYPE 100 #define REVERSE_SORT_RELOCS -#define tc_crawl_symbol_chain(a) ; /* not used */ -#define tc_headers_hook(a) ; /* not used */ - +#define NO_LISTING + +#define tc_aout_pre_write_hook(x) {;} /* not used */ +#define tc_crawl_symbol_chain(a) {;} /* not used */ +#define tc_headers_hook(a) {;} /* not used */ + #define MAX_OPERANDS 3 /* max operands per insn */ #define MAX_PREFIXES 4 /* max prefixes per opcode */ #define MAX_IMMEDIATE_OPERANDS 2 /* max immediates per insn */ #define MAX_MEMORY_OPERANDS 2 /* max memory ref per insn * lcall uses 2 */ - /* we define the syntax here (modulo base,index,scale syntax) */ +/* we define the syntax here (modulo base,index,scale syntax) */ #define REGISTER_PREFIX '%' #define IMMEDIATE_PREFIX '$' #define ABSOLUTE_PREFIX '*' @@ -39,18 +42,18 @@ #define TWO_BYTE_OPCODE_ESCAPE 0x0f - /* register numbers */ +/* register numbers */ #define EBP_REG_NUM 5 #define ESP_REG_NUM 4 - /* modrm_byte.regmem for twobyte escape */ +/* modrm_byte.regmem for twobyte escape */ #define ESCAPE_TO_TWO_BYTE_ADDRESSING ESP_REG_NUM - /* index_base_byte.index for no index register addressing */ +/* index_base_byte.index for no index register addressing */ #define NO_INDEX_REGISTER ESP_REG_NUM - /* index_base_byte.base for no base register addressing */ +/* index_base_byte.base for no base register addressing */ #define NO_BASE_REGISTER EBP_REG_NUM - /* these are the att as opcode suffixes, making movl --> mov, for example */ + /* these are the att as opcode suffixes, making movl --> mov, for example */ #define DWORD_OPCODE_SUFFIX 'l' #define WORD_OPCODE_SUFFIX 'w' #define BYTE_OPCODE_SUFFIX 'b' @@ -115,53 +118,32 @@ #define Abs32 0x20000000 #define Abs (Abs8|Abs16|Abs32) -#define MODE_FROM_DISP_SIZE(t) \ - ((t&(Disp8)) ? 1 : \ - ((t&(Disp32)) ? 2 : 0)) - #define Byte (Reg8|Imm8|Imm8S) #define Word (Reg16|Imm16) #define DWord (Reg32|Imm32) -/* convert opcode suffix ('b' 'w' 'l' typically) into type specifyer */ -#define OPCODE_SUFFIX_TO_TYPE(s) \ - (s == BYTE_OPCODE_SUFFIX ? Byte : \ - (s == WORD_OPCODE_SUFFIX ? Word : DWord)) - -#define FITS_IN_SIGNED_BYTE(num) ((num) >= -128 && (num) <= 127) -#define FITS_IN_UNSIGNED_BYTE(num) ((num) >= 0 && (num) <= 255) -#define FITS_IN_UNSIGNED_WORD(num) ((num) >= 0 && (num) <= 65535) -#define FITS_IN_SIGNED_WORD(num) ((num) >= -32768 && (num) <= 32767) - #define SMALLEST_DISP_TYPE(num) \ - FITS_IN_SIGNED_BYTE(num) ? (Disp8|Disp32|Abs8|Abs32) : (Disp32|Abs32) - -#define SMALLEST_IMM_TYPE(num) \ - (num == 1) ? (Imm1|Imm8|Imm8S|Imm16|Imm32): \ - FITS_IN_SIGNED_BYTE(num) ? (Imm8S|Imm8|Imm16|Imm32) : \ - FITS_IN_UNSIGNED_BYTE(num) ? (Imm8|Imm16|Imm32): \ - (FITS_IN_SIGNED_WORD(num)||FITS_IN_UNSIGNED_WORD(num)) ? (Imm16|Imm32) : \ - (Imm32) + fits_in_signed_byte(num) ? (Disp8|Disp32|Abs8|Abs32) : (Disp32|Abs32) typedef struct { /* instruction name sans width suffix ("mov" for movl insns) */ - char *name; + char *name; /* how many operands */ - unsigned int operands; + unsigned int operands; /* base_opcode is the fundamental opcode byte with a optional prefix(es). */ - unsigned int base_opcode; + unsigned int base_opcode; /* extension_opcode is the 3 bit extension for group <n> insns. If this template has no extension opcode (the usual case) use None */ - unsigned char extension_opcode; -#define None 0xff /* If no extension_opcode is possible. */ + unsigned char extension_opcode; +#define None 0xff /* If no extension_opcode is possible. */ /* the bits in opcode_modifier are used to generate the final opcode from the base_opcode. These bits also are used to detect alternate forms of the same instruction */ - unsigned int opcode_modifier; + unsigned int opcode_modifier; /* opcode_modifier bits: */ #define W 0x1 /* set if operands are words or dwords */ @@ -211,26 +193,26 @@ typedef struct { END. */ typedef struct { - template *start; - template *end; + template *start; + template *end; } templates; /* these are for register name --> number & type hash lookup */ typedef struct { - char * reg_name; - unsigned int reg_type; - unsigned int reg_num; + char *reg_name; + unsigned int reg_type; + unsigned int reg_num; } reg_entry; typedef struct { - char * seg_name; - unsigned int seg_prefix; + char *seg_name; + unsigned int seg_prefix; } seg_entry; /* these are for prefix name --> prefix code hash lookup */ typedef struct { - char * prefix_name; - unsigned char prefix_code; + char *prefix_name; + unsigned char prefix_code; } prefix_entry; /* 386 operand encoding bytes: see 386 book for details of this. */ |