2000-05-28 13:40:48 +00:00
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/*****************************************************************************/
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/* */
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/* symentry.h */
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/* */
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/* Symbol table entry forward for the ca65 macroassembler */
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/* */
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/* */
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/* */
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2003-10-22 21:24:37 +00:00
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/* (C) 1998-2003 Ullrich von Bassewitz */
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/* R<>merstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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2000-05-28 13:40:48 +00:00
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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 SYMENTRY_H
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#define SYMENTRY_H
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2003-10-22 21:24:37 +00:00
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/* common */
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#include "cddefs.h"
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#include "filepos.h"
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2000-05-28 13:40:48 +00:00
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/*****************************************************************************/
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/* Data */
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/*****************************************************************************/
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2003-10-22 21:24:37 +00:00
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/* Bits for the Flags value in SymEntry */
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#define SF_NONE 0x0000 /* Empty flag set */
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#define SF_USER 0x0001 /* User bit */
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#define SF_TRAMPOLINE 0x0002 /* Trampoline entry */
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#define SF_EXPORT 0x0004 /* Export this symbol */
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#define SF_IMPORT 0x0008 /* Import this symbol */
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#define SF_GLOBAL 0x0010 /* Global symbol */
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#define SF_ZP 0x0020 /* Declared as zeropage symbol */
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#define SF_ABS 0x0040 /* Declared as absolute symbol */
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#define SF_LABEL 0x0080 /* Used as a label */
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#define SF_FORCED 0x0100 /* Forced import, SF_IMPORT also set */
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#define SF_FINALIZED 0x0200 /* Symbol is finalized */
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#define SF_INDEXED 0x0800 /* Index is valid */
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#define SF_CONST 0x1000 /* The symbol has a constant value */
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#define SF_MULTDEF 0x2000 /* Multiply defined symbol */
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#define SF_DEFINED 0x4000 /* Defined */
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#define SF_REFERENCED 0x8000 /* Referenced */
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/* Structure of a symbol table entry */
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2000-11-02 22:11:48 +00:00
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typedef struct SymEntry SymEntry;
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2003-10-22 21:24:37 +00:00
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struct SymEntry {
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SymEntry* Left; /* Lexically smaller entry */
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SymEntry* Right; /* Lexically larger entry */
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SymEntry* List; /* List of all entries */
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SymEntry* Locals; /* Root of subtree for local symbols */
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struct SymTable* SymTab; /* Table this symbol is in, 0 for locals */
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FilePos Pos; /* File position for this symbol */
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unsigned Flags; /* Symbol flags */
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unsigned Index; /* Index of import/export entries */
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union {
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struct ExprNode* Expr; /* Expression if CONST not set */
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long Val; /* Value (if CONST set) */
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SymEntry* Sym; /* Symbol (if trampoline entry) */
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} V;
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unsigned char ConDesPrio[CD_TYPE_COUNT]; /* ConDes priorities... */
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/* ...actually value+1 (used as flag) */
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char Name [1]; /* Dynamic allocation */
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};
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/* List of all symbol table entries */
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extern SymEntry* SymList;
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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SymEntry* NewSymEntry (const char* Name);
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/* Allocate a symbol table entry, initialize and return it */
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2000-05-28 13:40:48 +00:00
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/* End of symentry.h */
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#endif
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