1 /*****************************************************************************/
5 /* Segments for the ca65 macroassembler */
9 /* (C) 1998-2003 Ullrich von Bassewitz */
10 /* Römerstrasse 52 */
11 /* D-70794 Filderstadt */
12 /* EMail: uz@cc65.org */
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. */
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: */
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 */
32 /*****************************************************************************/
50 /*****************************************************************************/
52 /*****************************************************************************/
56 /* Are we in absolute mode or in relocatable mode? */
59 /* Definitions for predefined segments */
60 extern SegDef NullSegDef;
61 extern SegDef ZeropageSegDef;
62 extern SegDef DataSegDef;
63 extern SegDef BssSegDef;
64 extern SegDef RODataSegDef;
65 extern SegDef CodeSegDef;
69 /*****************************************************************************/
71 /*****************************************************************************/
75 Fragment* GenFragment (unsigned char Type, unsigned short Len);
76 /* Generate a new fragment, add it to the current segment and return it. */
78 void UseSeg (const SegDef* D);
79 /* Use the given segment */
81 const SegDef* GetCurrentSeg (void);
82 /* Get a pointer to the segment defininition of the current segment */
84 unsigned GetSegNum (void);
85 /* Get the number of the current segment */
87 void SegAlign (unsigned Power, int Val);
88 /* Align the PC segment to 2^Power. If Val is -1, emit fill fragments (the
89 * actual fill value will be determined by the linker), otherwise use the
94 /* Return true if the current segment is a zeropage segment */
97 /* Return true if the current segment is a far segment */
99 unsigned GetSegType (unsigned SegNum);
100 /* Return the type of the segment with the given number */
102 unsigned long GetPC (void);
103 /* Get the program counter of the current segment */
105 void SetAbsPC (unsigned long AbsPC);
106 /* Set the program counter in absolute mode */
108 void SegCheck (void);
109 /* Check the segments for range and other errors */
112 /* Dump the contents of all segments */
114 void WriteSegments (void);
115 /* Write the segment data to the object file */
119 /* End of segment.h */