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uz
283
src/ca65/scanner.h
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283
src/ca65/scanner.h
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/*****************************************************************************/
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/* */
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/* scanner.h */
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/* */
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/* The scanner for the ca65 macroassembler */
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/* */
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/* */
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/* */
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/* (C) 1998-2000 Ullrich von Bassewitz */
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/* Wacholderweg 14 */
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/* D-70597 Stuttgart */
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/* EMail: uz@musoftware.de */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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#ifndef SCANNER_H
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#define SCANNER_H
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#include "../common/filepos.h"
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/*****************************************************************************/
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/* Data */
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/*****************************************************************************/
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/* Tokens */
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enum Token {
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TOK_NONE, /* Start value, invalid */
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TOK_EOF, /* End of input file */
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TOK_SEP, /* Separator (usually newline) */
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TOK_IDENT, /* An identifier */
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TOK_MNEMO, /* A mnemonic */
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TOK_INTCON, /* Integer constant */
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TOK_CHARCON, /* Character constant */
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TOK_STRCON, /* String constant */
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TOK_A, /* A)ccu */
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TOK_X, /* X register */
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TOK_Y, /* Y register */
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TOK_S, /* S register */
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TOK_ULABEL, /* :++ or :-- */
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TOK_EQ, /* = */
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TOK_NE, /* <> */
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TOK_LT, /* < */
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TOK_GT, /* > */
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TOK_LE, /* <= */
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TOK_GE, /* >= */
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TOK_BAND, /* .and */
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TOK_BOR, /* .or */
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TOK_BXOR, /* .xor */
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TOK_BNOT, /* .not */
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TOK_PLUS, /* + */
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TOK_MINUS, /* - */
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TOK_MUL, /* * */
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TOK_STAR = TOK_MUL, /* Alias */
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TOK_DIV, /* / */
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TOK_MOD, /* ! */
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TOK_OR, /* | */
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TOK_XOR, /* ^ */
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TOK_AND, /* & */
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TOK_SHL, /* << */
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TOK_SHR, /* >> */
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TOK_NOT, /* ~ */
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TOK_PC, /* $ if enabled */
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TOK_NAMESPACE, /* :: */
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TOK_DOT, /* . */
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TOK_COMMA, /* , */
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TOK_HASH, /* # */
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TOK_COLON, /* : */
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TOK_LPAREN, /* ( */
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TOK_RPAREN, /* ) */
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TOK_LBRACK, /* [ */
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TOK_RBRACK, /* ] */
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TOK_MACPARAM, /* Macro parameter, not generated by scanner */
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/* The next ones are tokens for the pseudo instructions. Keep together! */
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TOK_FIRSTPSEUDO,
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TOK_A16 = TOK_FIRSTPSEUDO,
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TOK_A8,
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TOK_ADDR,
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TOK_ALIGN,
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TOK_ASCIIZ,
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TOK_AUTOIMPORT,
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TOK_BLANK,
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TOK_BSS,
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TOK_BYTE,
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TOK_CASE,
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TOK_CODE,
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TOK_CONST,
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TOK_CPU,
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TOK_DATA,
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TOK_DBYT,
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TOK_DEBUGINFO,
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TOK_DEFINE,
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TOK_DEFINED,
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TOK_DWORD,
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TOK_ELSE,
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TOK_ELSEIF,
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TOK_END,
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TOK_ENDIF,
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TOK_ENDMACRO,
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TOK_ENDPROC,
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TOK_ENDREP,
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TOK_ERROR,
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TOK_EXITMACRO,
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TOK_EXPORT,
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TOK_EXPORTZP,
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TOK_FARADDR,
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TOK_FEATURE,
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TOK_FILEOPT,
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TOK_GLOBAL,
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TOK_GLOBALZP,
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TOK_I16,
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TOK_I8,
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TOK_IF,
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TOK_IFBLANK,
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TOK_IFCONST,
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TOK_IFDEF,
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TOK_IFNBLANK,
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TOK_IFNCONST,
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TOK_IFNDEF,
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TOK_IFNREF,
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TOK_IFP02,
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TOK_IFP816,
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TOK_IFPC02,
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TOK_IFREF,
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TOK_IMPORT,
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TOK_IMPORTZP,
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TOK_INCBIN,
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TOK_INCLUDE,
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TOK_LINECONT,
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TOK_LIST,
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TOK_LISTBYTES,
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TOK_LOCAL,
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TOK_LOCALCHAR,
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TOK_MACPACK,
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TOK_MACRO,
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TOK_MATCH,
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TOK_NULL,
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TOK_ORG,
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TOK_OUT,
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TOK_P02,
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TOK_P816,
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TOK_PAGELENGTH,
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TOK_PARAMCOUNT,
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TOK_PC02,
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TOK_PROC,
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TOK_REFERENCED,
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TOK_RELOC,
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TOK_REPEAT,
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TOK_RES,
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TOK_RODATA,
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TOK_SEGMENT,
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TOK_SMART,
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TOK_STRING,
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TOK_SUNPLUS,
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TOK_WORD,
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TOK_XMATCH,
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TOK_ZEROPAGE,
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TOK_LASTPSEUDO = TOK_ZEROPAGE,
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TOK_COUNT /* Count of tokens */
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};
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/* Scanner variables */
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#define MAX_INPUT_FILES 254 /* No more than this files total */
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#define MAX_STR_LEN 255 /* Maximum length of any string */
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extern enum Token Tok; /* Current token */
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extern int WS; /* Flag: Whitespace before token */
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extern long IVal; /* Integer token attribute */
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extern char SVal [MAX_STR_LEN+1]; /* String token attribute */
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extern FilePos CurPos; /* Name and position in file */
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extern int ForcedEnd; /* Force end of assembly */
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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const char* GetFileName (unsigned char Name);
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/* Get the name of a file where the name index is known */
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void NewInputFile (const char* Name);
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/* Open a new input file */
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void DoneInputFile (void);
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/* Close the current input file */
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void NewInputData (const char* Data, int Malloced);
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/* Add a chunk of input data to the input stream */
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void UpcaseSVal (void);
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/* Make SVal upper case */
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void NextTok (void);
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/* Read the next token from the input stream */
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void Consume (enum Token Expected, unsigned ErrMsg);
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/* Consume Token, print an error if we don't find it */
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void ConsumeSep (void);
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/* Consume a separator token */
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void ConsumeLParen (void);
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/* Consume a left paren */
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void ConsumeRParen (void);
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/* Consume a right paren */
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void ConsumeComma (void);
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/* Consume a comma */
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void SkipUntilSep (void);
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/* Skip tokens until we reach a line separator */
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int TokHasSVal (enum Token Tok);
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/* Return true if the given token has an attached SVal */
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int TokHasIVal (enum Token Tok);
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/* Return true if the given token has an attached IVal */
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int GetSubKey (const char** Keys, unsigned Count);
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/* Search for a subkey in a table of keywords. The current token must be an
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* identifier and all keys must be in upper case. The identifier will be
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* uppercased in the process. The function returns the index of the keyword,
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* or -1 if the keyword was not found.
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*/
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void WriteFiles (void);
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/* Write the list of input files to the object file */
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void InitScanner (const char* InFile);
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/* Initialize the scanner, open the given input file */
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void DoneScanner (void);
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/* Release scanner resources */
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/* End of scanner.h */
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#endif
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