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Unions allow multiple memory allocations (using ds, etc.) to share the same space in memory. This allows games to use the same memory for different purposes, depending on their state. This also adds documentation on how to use the new UNION, NEXTU, and ENDU keywords.
41 lines
823 B
C
41 lines
823 B
C
/* asm.h
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*
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* Contains some assembler-wide defines and externs
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*
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* Copyright 1997 Carsten Sorensen
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*
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*/
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#ifndef RGBDS_ASM_ASM_H
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#define RGBDS_ASM_ASM_H
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "types.h"
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#include "asm/symbol.h"
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#include "asm/localasm.h"
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#define MAXUNIONS 128
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#define MAXMACROARGS 256
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#define MAXINCPATHS 128
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extern SLONG nLineNo;
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extern ULONG nTotalLines;
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extern ULONG nPC;
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extern ULONG nPass;
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extern ULONG nIFDepth;
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extern bool skipElif;
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extern ULONG nUnionDepth;
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extern ULONG unionStart[MAXUNIONS];
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extern ULONG unionSize[MAXUNIONS];
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extern char tzCurrentFileName[_MAX_PATH + 1];
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extern struct Section *pCurrentSection;
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extern struct sSymbol *tHashedSymbols[HASHSIZE];
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extern struct sSymbol *pPCSymbol;
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extern bool oDontExpandStrings;
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#endif /* // ASM_H */
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