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Diffstat (limited to 'as/const.h')
| -rw-r--r-- | as/const.h | 409 |
1 files changed, 409 insertions, 0 deletions
diff --git a/as/const.h b/as/const.h new file mode 100644 index 0000000..78523e5 --- /dev/null +++ b/as/const.h @@ -0,0 +1,409 @@ +#define align(x) /* ((x) = ((int) (x) + (4-1)) & ~(4-1)) */ +#define LOW_BYTE 0 /* must be changed for big-endian */ + +/* const.h - constants for assembler */ + +/* major switches */ + +#define I80386 /* generate 80386 code */ +#undef MC6809 /* generate 6809 code */ +#define MNSIZE /* allow byte size in mnemonic, e.g. "movb" */ +#undef SOS_EDOS /* source OS is EDOS */ + +/* defaults */ + +#define DIRCHAR '/' /* character separating filename from dir */ +#define INBUFSIZE 8192 +#define SOS_EOLSTR "\012" + +/* defaults modified by switches */ + +#ifdef SOS_EDOS +# undef INBUFSIZE +# define INBUFSIZE 512 +# undef SOS_EOLSTR +# define SOS_EOLSTR "\015\012" +# define STAKSIZ 256 /* table grows up to stack less this */ +#endif + +/* booleans */ + +#define FALSE 0 +#define TRUE 1 + +/* ASCII constants */ + +#define ETB 23 + +/* C tricks */ + +#define EXTERN extern +#define FORWARD static +#define PRIVATE static +#define PUBLIC +#define NULL 0 + +/* O/S constants */ + +#define CREAT_PERMS 0666 +#define EOF (-1) +#define STDIN 0 +#define STDOUT 1 + +enum +{ +/* Register codes (internal to assembler). */ +#ifdef I80386 + +/* Index regs must be first. */ + BPREG, + BXREG, + DIREG, + SIREG, +#define MAX16BITINDREG SIREG + + EAXREG, + EBPREG, + EBXREG, + ECXREG, + EDIREG, + EDXREG, + ESIREG, + ESPREG, +#define MAXINDREG ESPREG + + AXREG, + CXREG, + DXREG, + SPREG, + + AHREG, + ALREG, + BHREG, + BLREG, + CHREG, + CLREG, + DHREG, + DLREG, + + CSREG, + DSREG, + ESREG, + FSREG, + GSREG, + SSREG, + + CR0REG, + CR2REG, + CR3REG, + DR0REG, + DR1REG, + DR2REG, + DR3REG, + DR6REG, + DR7REG, + TR3REG, + TR4REG, + TR5REG, + TR6REG, + TR7REG, + + ST0REG, + ST1REG, + ST2REG, + ST3REG, + ST4REG, + ST5REG, + ST6REG, + ST7REG, +#endif /* I80386 */ + +#ifdef MC6809 + +/* Index regs must be first, then PC. */ + SREG, + UREG, + XREG, + YREG, +#define MAXINDREG YREG + + PCREG, + AREG, + BREG, + CCREG, + DPREG, + DREG, +#endif /* MC6809 */ + + NOREG +}; + +#ifdef I80386 +enum +{ +/* Type and size keywords. */ + BYTEOP, + DWORDOP, + FWORDOP, + FAROP, + PTROP, + PWORDOP, + QWORDOP, + TBYTEOP, + WORDOP +}; +#endif /* I80386 */ + +/* special chars */ + +#define EOL 0 +#define MACROCHAR '?' + +enum +{ +/* Symbol codes. */ + +/* The first 2 must be from chars in identifiers. */ + IDENT, + INTCONST, + +/* The next few are best for other possibly-multi-char tokens. */ + ADDOP, /* also ++ */ + BINCONST, + CHARCONST, + GREATERTHAN, /* also >> and context-sensitive */ + HEXCONST, + LESSTHAN, /* also << and context-sensitive */ + SUBOP, /* also -- */ + WHITESPACE, + + ANDOP, + COMMA, + EOLSYM, + EQOP, + IMMEDIATE, + INDIRECT, + LBRACKET, + LPAREN, + MACROARG, + NOTOP, + OROP, + OTHERSYM, + POSTINCOP, + PREDECOP, + RBRACKET, + RPAREN, + SLASH, /* context-sensitive */ + SLOP, + SROP, + STAR, /* context-sensitive */ + STRINGCONST, + COLON +}; + +enum +{ +/* Error codes. */ + +/* Syntax errors. */ + COMEXP, + DELEXP, + FACEXP, + IREGEXP, + LABEXP, + LPEXP, + OPEXP, + RBEXP, + REGEXP, + RPEXP, + SPEXP, + +/* Expression errors. */ + ABSREQ, + NONIMPREQ, + RELBAD, + +/* Label errors. */ + ILLAB, + MACUID, + MISLAB, + MNUID, + REGUID, + RELAB, + UNBLAB, + UNLAB, + VARLAB, + +/* Addressing errors. */ + ABOUNDS, + DBOUNDS, + ILLMOD, + ILLREG, + +/* Control structure errors. */ + ELSEBAD, +#define ELSEIFBAD ELSEBAD + ENDBBAD, +#define ENDIFBAD ELSEBAD + EOFBLOCK, + EOFIF, + EOFLC, + EOFMAC, + FAILERR, + +/* Overflow errors. */ + BLOCKOV, + BWRAP, + COUNTOV, + COUNTUN, + GETOV, + IFOV, + + LINLONG, + MACOV, + OBJSYMOV, + OWRITE, + PAROV, + SYMOV, + SYMOUTOV, + +/* I/O errors. */ + OBJOUT, + +/* Miscellaneous errors. */ + AL_AX_EAX_EXP, + CTLINS, + FURTHER, + ILL_IMM_MODE, + ILL_IND_TO_IND, + ILL_IND, + ILL_IND_PTR, + ILL_SCALE, + ILL_SECTION, + ILL_SEG_REG, + ILL_SOURCE_EA, + ILL_SIZE, + IMM_REQ, + INDEX_REG_EXP, + IND_REQ, + MISMATCHED_SIZE, + NOIMPORT, + REENTER, + REL_REQ, + REPEATED_DISPL, + SEGREL, + SEG_REG_REQ, + SIZE_UNK, + UNKNOWN_ESCAPE_SEQUENCE, + + FP_REG_REQ, + FP_REG_NOT_ALLOWED, + ILL_FP_REG, + ILL_FP_REG_PAIR, + JUNK_AFTER_OPERANDS, + + ALREADY, + +/* Warnings. */ +#define MINWARN SHORTB + SHORTB +}; + +/* symbol table entry */ + + /* type entry contains following flags */ +#define ENTBIT (1<<0) /* entry point (= OBJ_N_MASK) */ +#define COMMBIT (1<<1) /* common */ +#define LABIT (1<<2) /* label (a PC location or defined by EQU) */ +#define MNREGBIT (1<<3) /* mnemonic for op or pseudo-op, or register */ +#define MACBIT (1<<4) /* macro */ +#define REDBIT (1<<5) /* redefined (if with LABIT or VARBIT), to do + * with SA_MASK (if with COMMBIT), otherwise + * means globl */ +#define VARBIT (1<<6) /* variable (i.e. something defined by SET) */ +#define EXPBIT (1<<7) /* exported (= OBJ_E_MASK) */ + + /* data entry contains following flags, valid */ + /* for expressions as well as syms */ +#define PAGE1 (1<<0) /* page 1 machine op = MNREGBIT | PAGE1 */ +#define PAGE2 (1<<1) /* page 2 machine op = MNREGBIT | PAGE2 */ +#define REGBIT (1<<2) /* register = MNREGBIT | REGBIT */ +#define SIZEBIT (1<<3) /* sizing mnemonic = MNREGBIT | SIZEBIT */ +#define SEGM 0x0F /* 1st 4 bits reused for segment if !MNREGBIT */ +#define RELBIT (1<<4) /* relative (= OBJ_A_MASK) */ +#define FORBIT (1<<5) /* forward referenced */ +#define IMPBIT (1<<6) /* imported (= OBJ_I_MASK) */ +#define UNDBIT (1<<7) /* undefined */ + +/* object code format (Introl) */ + +#define OBJ_SEGSZ_TWO 0x02 /* size 2 code for segment size descriptor */ + +#define OBJ_MAX_ABS_LEN 64 /* max length of chunk of absolute code */ + +#define OBJ_ABS 0x40 /* absolute code command */ +#define OBJ_OFFSET_REL 0x80 /* offset relocation command */ +#define OBJ_SET_SEG 0x20 /* set segment command */ +#define OBJ_SKIP_1 0x11 /* skip with 1 byte count */ +#define OBJ_SKIP_2 0x12 /* skip with 2 byte count */ +#define OBJ_SKIP_4 0x13 /* skip with 4 byte count */ +#define OBJ_SYMBOL_REL 0xC0 /* symbol relocation command */ + +#define OBJ_A_MASK 0x10 /* absolute bit(symbols) */ +#if OBJ_A_MASK - RELBIT /* must match internal format (~byte 1 -> 0) */ +oops - RELBIT misplaced +#endif +#define OBJ_E_MASK 0x80 /* exported bit (symbols) */ +#if OBJ_E_MASK - EXPBIT /* must match internal format (byte 0 -> 0) */ +oops - EXPBIT misplaced +#endif +#define OBJ_I_MASK 0x40 /* imported bit (symbols) */ +#if OBJ_I_MASK - IMPBIT /* must match internal format (byte 1 -> 0) */ +oops - IMPBIT misplaced +#endif +#define OBJ_N_MASK 0x01 /* entry bit (symbols) */ +#if OBJ_N_MASK - ENTBIT /* must match internal format (byte 0 -> 1) */ +oops - ENTBIT misplaced +#endif +#define OBJ_SA_MASK 0x20 /* size allocation bit (symbols) */ +#define OBJ_SZ_ONE 0x40 /* size one code for symbol value */ +#define OBJ_SZ_TWO 0x80 /* size two code for symbol value */ +#define OBJ_SZ_FOUR 0xC0 /* size four code for symbol value */ + +#define OBJ_R_MASK 0x20 /* PC-rel bit (off & sym reloc commands) */ +#define OBJ_SEGM_MASK 0x0F /* segment mask (symbols, off reloc command) */ + +#define OBJ_OF_MASK 0x03 /* offset size code for symbol reloc */ +#define OBJ_S_MASK 0x04 /* symbol number size code for symbol reloc */ + +#define SYMLIS_NAMELEN 26 +#define SYMLIS_LEN (sizeof (struct sym_listing_s)) + +#define FILNAMLEN 64 /* max length of a file name */ +#define LINLEN 256 /* max length of input line */ +#define LINUM_LEN 5 /* length of formatted line number */ + +#define SPTSIZ 1024 /* number of symbol ptrs */ + /* pseudo-op flags */ +#define POPHI 1 /* set to print hi byte of adr */ +#define POPLO 2 /* to print lo byte of ADR */ +#define POPLC 4 /* to print LC */ +#define POPLONG 8 /* to print high word of ADR */ +#define MAXBLOCK 8 /* max nesting level of BLOCK stack */ +#define MAXGET 8 /* max nesting level of GET stack */ +#define MAXIF 8 /* max nesting level of IF stack */ +#define MACPSIZ (128 / sizeof (struct schain_s)) + /* size of macro param buffer */ +#define MAXMAC 8 /* max nesting level of macro stack */ +#define NLOC 16 /* number of location counters */ +#ifdef I80386 +#define NO_SIB 0340 /* illegal sib (3 with 4) to mean no sib */ +#endif + +/* special segments */ + +#define BSSLOC 3 +#define DATALOC 3 +#define DPLOC 2 +#define STRLOC 1 +#define TEXTLOC 0 |