]> git.sur5r.net Git - cc65/blob - src/ca65/ulabel.h
Added condes tables to c64 config
[cc65] / src / ca65 / ulabel.h
1 /*****************************************************************************/
2 /*                                                                           */
3 /*                                 ulabel.h                                  */
4 /*                                                                           */
5 /*                Unnamed labels for the ca65 macroassembler                 */
6 /*                                                                           */
7 /*                                                                           */
8 /*                                                                           */
9 /* (C) 2000      Ullrich von Bassewitz                                       */
10 /*               Wacholderweg 14                                             */
11 /*               D-70597 Stuttgart                                           */
12 /* EMail:        uz@musoftware.de                                            */
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 ULABEL_H
37 #define ULABEL_H
38
39
40
41 /*****************************************************************************/
42 /*                                   Code                                    */
43 /*****************************************************************************/
44
45
46
47 ExprNode* ULabRef (int Which);
48 /* Get an unnamed label. If Which is negative, it is a backreference (a
49  * reference to an already defined label), and the function will return a
50  * segment relative expression. If Which is positive, it is a forward ref,
51  * and the function will return a expression node for an unnamed label that
52  * must be resolved later.
53  */
54
55 void ULabDef (void);
56 /* Define an unnamed label at the current PC */
57
58 int ULabCanResolve (void);
59 /* Return true if we can resolve arbitrary ULabels. */
60
61 ExprNode* ULabResolve (unsigned Index);
62 /* Return a valid expression for the unnamed label with the given index. This
63  * is used to resolve unnamed labels when assembly is done, so it is an error
64  * if a label is still undefined in this phase.
65  */
66
67 void ULabCheck (void);
68 /* Run through all unnamed labels and check for anomalies and errors */
69
70
71
72 /* End of ulabel.h */
73
74 #endif
75
76
77