cc65/src/cc65/stackptr.c

71 lines
3.3 KiB
C

/*****************************************************************************/
/* */
/* stackptr.c */
/* */
/* Manage the parameter stack pointer */
/* */
/* */
/* */
/* (C) 2004-2006 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. */
/* */
/*****************************************************************************/
/* cc65 */
#include "stackptr.h"
/*****************************************************************************/
/* Data */
/*****************************************************************************/
/* Compiler relative stackpointer */
int StackPtr = 0;
/*****************************************************************************/
/* Code */
/*****************************************************************************/
void SP_Push (const Type* T)
/* Adjust the stackpointer for a push of an argument of the given type */
{
StackPtr -= SizeOf (T);
}
void SP_Pop (const Type* T)
/* Adjust the stackpointer for a pop of an argument of the given type */
{
StackPtr += SizeOf (T);
}