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obj68k.h
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C/C++ Source or Header
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1991-07-05
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5KB
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169 lines
/* Copyright Manx Software Systems, Inc. 1988. All rights reserved */
#ifndef __OBJ68K_H
#define __OBJ68K_H
/* Manx 680x0 version 4.9a */
/* loader item definitions */
#define SPEC2 0x00
#define THEEND 0x00
/* special info for source level debugger */
#define BLOCKST 0x01 /* block start */
#define AUTOSYM 0x02 /* auto variable def */
#define ARGSYM 0x03 /* function argument def */
#define REGSYM 0x04 /* register variable def */
#define AREGSYM 0x05 /* register var argument */
#define STATSYM 0x06 /* static variable def */
#define FILESYM 0x07 /* file scope static var def */
#define GBLTYPE 0x08 /* global variable type info */
#define TDEFSYM 0x09 /* typedef name */
#define STRCTAG 0x0a /* structure tag definition */
#define STRCDEF 0x0b /* start of structure definition */
#define SETFILE 0x0c /* set working file name for line table */
#define SETLINE 0x0d /* set current line # */
#define ABSDATA 0x10
#define EXPR 0x20
#define SMLINT 0x30
#define SMLNEG 0x40
#define MEDINT 0x50
#define LCLSYM 0x60
#define GBLSYM 0x70
#define SPACE 0x80
#define USECOMN 0x90
#define CODEREF 0xa0
#define DATAREF 0xb0
#define BSSREF 0xc0
#define SEGREL 0xd0 /* segment relative reference */
#define SPECIAL 0xf0
#define DATASEG 0xf0 /* para # of data segment (8086 only) */
#define BEXPR 0xf1 /* byte expression */
#define BREL 0xf2 /* 8-bit PC relative */
#define LRGINT 0xf3
#define USECODE 0xf4
#define USEDATA 0xf5
#define STARTAD 0xf6
#define LRGCODE 0xf7
#define LRGDATA 0xf8
#define INTJSR 0xf9 /* interpreter call instruction */
#define WREL 0xfa /* 16-bit PC relative */
#define LRGBSS 0xfb
#define HUGINT 0xfc /* 32-bit constant */
#define LEXPR 0xfd /* 32-bit address expression */
#define CODESEG 0xfe /* para # of code segment (8086 only) */
#define LREL 0xfe /* 32-bit PC relative */
#define NLINE 0xff
/* within STRCDEF the following are used */
#define MEMBDEF 0x01 /* structure member info */
#define FLDDEF 0x02 /* bit field member */
/* low nibble of EXPR item (operators) */
#define ADD 1
#define SUB 2
#define MUL 3
#define DIV 4
#define MOD 5
#define AND 6
#define OR 7
#define XOR 8
#define RSH 9
#define LSH 10
#define NOT 11 /* must be the first unary op, and only unarys may follow */
#define NEG 12
#define OHIGH 13
#define OLOW 14
#define OSEG 15
#define FLP 15 /* flip the following word */
#define M_MAGIC ((short)0x434a)
#define M_LMAGIC ((short)0x030c)
#define M_OVROOT ((short)0xcf56)
#define M_LIBRARY ((short)0x636a)
#define M_GRAIN 4 /* boundary for all positions in file */
#define M_GRSHFT 2 /* log base 2 of GRAIN */
#define M_SHIFT(x) ((long)(x)<<M_GRSHFT)
struct module {
short m_magic; /* magic number for object files */
char m_name[8]; /* module name */
long m_code; /* size of code in this module */
long m_data; /* size of data in this module */
long m_static; /* size of static storage (bss) in this module */
short m_nglobal; /* # of global symbols */
short m_nlocal; /* # of local symbols */
unsigned short m_recs; /* offset of start of module records */
unsigned short m_global;/* offset of start of global symbols */
unsigned short m_local; /* offset of start of local symbols */
unsigned short m_next; /* offset of next module in this file */
unsigned short m_nfix; /* number of segment fixes required */
};
#define LBSIZE (2048-2*sizeof(short))
struct newlib {
short nl_magic; /* magic number for library files */
unsigned short nl_next; /* location of next dictionary block */
char nl_dict[LBSIZE]; /* dictionary buffer */
/* the format of the dictionary is:
two bytes - (position of module defining symbol) / 128
nul terminated string - name of symbol
*/
};
#define S_ABS 1
#define S_CODE 2
#define S_DATA 3
#define S_COMN 4 /* common segment (obsolete) */
#define S_CMNREF 5
#define S_ROOTSYM 6 /* used by linker to tag root symbols */
#define S_EXPR 6
#define S_UND 7
#define S_WEAK 8
#define S_BSS 9
#define S_GROUP 10
#define S_PSEG 11 /* public segment */
#define S_SSEG 12 /* stack segment */
#define S_MSEG 13 /* memory segment */
#define S_CSEG 14 /* common segment (new form) */
#define S_CLASS 15 /* segment class name */
#define S_REG S_COMN /* register list */
#define S_FREG S_SSEG /* fp register list */
#define ST_TYPE 0x0f /* type part of symbol type */
#define ST_ALIGN 0x70 /* alignment type (for segments) */
#define ST_BYTE 0x00 /* alignment boundarys (byte) */
#define ST_WORD 0x10 /* even */
#define ST_PARA 0x20 /* 16-byte */
#define ST_PAGE 0x30 /* 256-byte */
#define ST_INPAGE 0x40 /* within 256 byte page */
/* symbol flags */
#define SF_HAVTYPE 0x01 /* symbol is followed by type info */
#define SF_DATAREF 0x02 /* used for externs in dataseg */
#define SF_HAVCLAS 0x04 /* symbol is followed by class index */
#define SF_GLOBL 0x08 /* symbol is public/extern */
#define SF_HAVSEG 0x10 /* symbol is followed by segment/group # */
#define SF_OVSYM 0x20 /* overlay symbol */
#define S_FIXED 0x40
#define S_UNNAMED 0x80
struct symtab {
char s_type,s_flags;
unsigned short s_value;
};
/* symbol table entry is followed by a segment or group # if the SF_HAVSEG
flag is set.
Global symbols are followed by a nul terminated string which is the
name of the symbol.
*/
#endif