git.sur5r.net Git - cc65/blob - src/ca65/span.h

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                  span.h                                   */
   4 /*                                                                           */
   5 /*                      A span of data within a segment                      */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 2003-2011, Ullrich von Bassewitz                                      */
  10 /*                Roemerstrasse 52                                           */
  11 /*                D-70794 Filderstadt                                        */
  12 /* EMail:         uz@cc65.org                                                */
  13 /*                                                                           */
  14 /*                                                                           */
  15 /* This software is provided 'as-is', without any expressed or implied       */
  16 /* warranty.  In no event will the authors be held liable for any damages    */
  17 /* arising from the use of this software.                                    */
  18 /*                                                                           */
  19 /* Permission is granted to anyone to use this software for any purpose,     */
  20 /* including commercial applications, and to alter it and redistribute it    */
  21 /* freely, subject to the following restrictions:                            */
  22 /*                                                                           */
  23 /* 1. The origin of this software must not be misrepresented; you must not   */
  24 /*    claim that you wrote the original software. If you use this software   */
  25 /*    in a product, an acknowledgment in the product documentation would be  */
  26 /*    appreciated but is not required.                                       */
  27 /* 2. Altered source versions must be plainly marked as such, and must not   */
  28 /*    be misrepresented as being the original software.                      */
  29 /* 3. This notice may not be removed or altered from any source              */
  30 /*    distribution.                                                          */
  31 /*                                                                           */
  32 /*****************************************************************************/
  33
  34
  35
  36 #ifndef SPAN_H
  37 #define SPAN_H
  38
  39
  40
  41 /* common */
  42 #include "coll.h"
  43 #include "inline.h"
  44
  45
  46
  47 /*****************************************************************************/
  48 /*                                   Data                                    */
  49 /*****************************************************************************/
  50
  51
  52
  53 /* Span definition */
  54 typedef struct Span Span;
  55 struct Span{
  56     struct Segment* Seg;                /* Pointer to segment */
  57     unsigned long   Start;              /* Start of range */
  58     unsigned long   End;                /* End of range */
  59 };
  60
  61
  62
  63 /*****************************************************************************/
  64 /*                                   Code                                    */
  65 /*****************************************************************************/
  66
  67
  68
  69 Span* NewSpan (struct Segment* Seg);
  70 /* Create a new span. The segment is set to Seg, Start and End are set to the
  71  * current PC of the segment.
  72  */
  73
  74 #if defined(HAVE_INLINE)
  75 INLINE unsigned long GetSpanSize (const Span* R)
  76 /* Return the span size in bytes */
  77 {
  78     return (R->End - R->Start);
  79 }
  80 #else
  81 #  define GetSpanSize(R)   ((R)->End - (R)->Start)
  82 #endif
  83
  84 void AddSpans (Collection* Spans);
  85 /* Add a span for all existing segments to the given collection of spans. The
  86  * currently active segment will be inserted first with all others following.
  87  */
  88
  89 void CloseSpans (Collection* Spans);
  90 /* Close all open spans by setting PC to the current PC for the segment. */
  91
  92 void WriteSpans (const Collection* Spans);
  93 /* Write a list of spans to the output file */
  94
  95
  96
  97 /* End of span.h */
  98
  99 #endif
 100
 101
 102