mirror of https://github.com/cc65/cc65.git
120 lines
4.7 KiB
C
120 lines
4.7 KiB
C
/*****************************************************************************/
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/* */
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/* span.h */
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/* */
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/* A span of data within a segment */
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/* */
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/* */
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/* */
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/* (C) 2003-2011, Ullrich von Bassewitz */
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/* Roemerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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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 SPAN_H
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#define SPAN_H
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/* common */
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#include "coll.h"
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#include "gentype.h"
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#include "hashtab.h"
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#include "inline.h"
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#include "strbuf.h"
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/*****************************************************************************/
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/* Data */
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/*****************************************************************************/
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/* Forwards */
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struct Segment;
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/* Span definition */
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typedef struct Span Span;
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struct Span{
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HashNode Node; /* Node for hash table */
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unsigned Id; /* Id of span */
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struct Segment* Seg; /* Pointer to segment */
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unsigned Start; /* Start of range */
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unsigned End; /* End of range */
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unsigned Type; /* Type of data in span */
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};
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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#if defined(HAVE_INLINE)
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INLINE unsigned long GetSpanSize (const Span* R)
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/* Return the span size in bytes */
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{
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return (R->End - R->Start);
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}
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#else
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# define GetSpanSize(R) ((R)->End - (R)->Start)
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#endif
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void SetSpanType (Span* S, const StrBuf* Type);
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/* Set the generic type of the span to Type */
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Span* OpenSpan (void);
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/* Open a span for the active segment and return it. */
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Span* CloseSpan (Span* S);
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/* Close the given span. Be sure to replace the passed span by the one
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** returned, since the span will get deleted if it is empty or may be
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** replaced if a duplicate exists.
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*/
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void OpenSpanList (Collection* Spans);
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/* Open a list of spans for all existing segments to the given collection of
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** spans. The currently active segment will be inserted first with all others
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** following.
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*/
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void CloseSpanList (Collection* Spans);
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/* Close all open spans by setting PC to the current PC for the segment. */
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void WriteSpanList (const Collection* Spans);
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/* Write a list of spans to the output file */
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void WriteSpans (void);
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/* Write all spans to the object file */
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/* End of span.h */
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#endif
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