mirror of https://github.com/cc65/cc65.git
77 lines
3.7 KiB
C
77 lines
3.7 KiB
C
/*****************************************************************************/
|
|
/* */
|
|
/* ulabel.h */
|
|
/* */
|
|
/* Unnamed labels for the ca65 macroassembler */
|
|
/* */
|
|
/* */
|
|
/* */
|
|
/* (C) 2000-2011, Ullrich von Bassewitz */
|
|
/* Roemerstrasse 52 */
|
|
/* D-70794 Filderstadt */
|
|
/* EMail: uz@cc65.org */
|
|
/* */
|
|
/* */
|
|
/* This software is provided 'as-is', without any expressed or implied */
|
|
/* warranty. In no event will the authors be held liable for any damages */
|
|
/* arising from the use of this software. */
|
|
/* */
|
|
/* Permission is granted to anyone to use this software for any purpose, */
|
|
/* including commercial applications, and to alter it and redistribute it */
|
|
/* freely, subject to the following restrictions: */
|
|
/* */
|
|
/* 1. The origin of this software must not be misrepresented; you must not */
|
|
/* claim that you wrote the original software. If you use this software */
|
|
/* in a product, an acknowledgment in the product documentation would be */
|
|
/* appreciated but is not required. */
|
|
/* 2. Altered source versions must be plainly marked as such, and must not */
|
|
/* be misrepresented as being the original software. */
|
|
/* 3. This notice may not be removed or altered from any source */
|
|
/* distribution. */
|
|
/* */
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
#ifndef ULABEL_H
|
|
#define ULABEL_H
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
/* Code */
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
ExprNode* ULabRef (int Which);
|
|
/* Get an unnamed label. If Which is negative, it is a backreference (a
|
|
** reference to an already defined label), and the function will return a
|
|
** segment relative expression. If Which is positive, it is a forward ref,
|
|
** and the function will return a expression node for an unnamed label that
|
|
** must be resolved later.
|
|
*/
|
|
|
|
void ULabDef (void);
|
|
/* Define an unnamed label at the current PC */
|
|
|
|
int ULabCanResolve (void);
|
|
/* Return true if we can resolve arbitrary ULabels. */
|
|
|
|
ExprNode* ULabResolve (unsigned Index);
|
|
/* Return a valid expression for the unnamed label with the given index. This
|
|
** is used to resolve unnamed labels when assembly is done, so it is an error
|
|
** if a label is still undefined in this phase.
|
|
*/
|
|
|
|
void ULabDone (void);
|
|
/* Run through all unnamed labels, check for anomalies and errors and do
|
|
** necessary cleanups.
|
|
*/
|
|
|
|
|
|
|
|
/* End of ulabel.h */
|
|
|
|
#endif
|