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 "gentype.h" |
44 | #include "hashtab.h" |
45 | #include "inline.h" |
46 | #include "strbuf.h" |
47 | |
48 | |
49 | |
50 | /*****************************************************************************/ |
51 | /* Data */ |
52 | /*****************************************************************************/ |
53 | |
54 | |
55 | |
56 | /* Forwards */ |
57 | struct Segment; |
58 | |
59 | /* Span definition */ |
60 | typedef struct Span Span; |
61 | struct Span{ |
62 | HashNode Node; /* Node for hash table */ |
63 | unsigned Id; /* Id of span */ |
64 | struct Segment* Seg; /* Pointer to segment */ |
65 | unsigned Start; /* Start of range */ |
66 | unsigned End; /* End of range */ |
67 | unsigned Type; /* Type of data in span */ |
68 | }; |
69 | |
70 | |
71 | |
72 | /*****************************************************************************/ |
73 | /* Code */ |
74 | /*****************************************************************************/ |
75 | |
76 | |
77 | |
78 | #if defined(HAVE_INLINE) |
79 | INLINE unsigned long GetSpanSize (const Span* R) |
80 | /* Return the span size in bytes */ |
81 | { |
82 | return (R->End - R->Start); |
83 | } |
84 | #else |
85 | # define GetSpanSize(R) ((R)->End - (R)->Start) |
86 | #endif |
87 | |
88 | void SetSpanType (Span* S, const StrBuf* Type); |
89 | /* Set the generic type of the span to Type */ |
90 | |
91 | Span* OpenSpan (void); |
92 | /* Open a span for the active segment and return it. */ |
93 | |
94 | Span* CloseSpan (Span* S); |
95 | /* Close the given span. Be sure to replace the passed span by the one |
96 | ** returned, since the span will get deleted if it is empty or may be |
97 | ** replaced if a duplicate exists. |
98 | */ |
99 | |
100 | void OpenSpanList (Collection* Spans); |
101 | /* Open a list of spans for all existing segments to the given collection of |
102 | ** spans. The currently active segment will be inserted first with all others |
103 | ** following. |
104 | */ |
105 | |
106 | void CloseSpanList (Collection* Spans); |
107 | /* Close all open spans by setting PC to the current PC for the segment. */ |
108 | |
109 | void WriteSpanList (const Collection* Spans); |
110 | /* Write a list of spans to the output file */ |
111 | |
112 | void WriteSpans (void); |
113 | /* Write all spans to the object file */ |
114 | |
115 | |
116 | |
117 | /* End of span.h */ |
118 | |
119 | #endif |
120 | |