mirror of https://github.com/cc65/cc65.git
110 lines
5.0 KiB
C
110 lines
5.0 KiB
C
/*****************************************************************************/
|
|
/* */
|
|
/* cc65.h */
|
|
/* */
|
|
/* Target independent but cc65 specific utility functions */
|
|
/* */
|
|
/* */
|
|
/* */
|
|
/* (C) 2009-2011, 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 _CC65_H
|
|
#define _CC65_H
|
|
|
|
|
|
|
|
/*****************************************************************************/
|
|
/* Code */
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
long __fastcall__ idiv32by16r16 (long rhs, int lhs);
|
|
/* Divide a 32 bit signed value by a 16 bit signed value yielding a 16
|
|
** bit result and a 16 bit remainder. The former is returned in the lower 16
|
|
** bit of the result, the latter in the upper. If you don't need the
|
|
** remainder, just assign (or cast) to an int.
|
|
*/
|
|
|
|
unsigned long __fastcall__ udiv32by16r16 (unsigned long rhs, unsigned lhs);
|
|
/* Divide a 32 bit unsigned value by a 16 bit unsigned value yielding a 16
|
|
** bit result and a 16 bit remainder. The former is returned in the lower 16
|
|
** bit of the result, the latter in the upper. If you don't need the
|
|
** remainder, just assign (or cast) to an unsigned.
|
|
*/
|
|
|
|
int __fastcall__ imul8x8r16 (signed char lhs, signed char rhs);
|
|
/* Multiply two signed 8 bit to yield an signed 16 bit result */
|
|
|
|
long __fastcall__ imul16x16r32 (int lhs, int rhs);
|
|
/* Multiply two signed 16 bit to yield a signed 32 bit result */
|
|
|
|
unsigned __fastcall__ umul8x8r16 (unsigned char lhs, unsigned char rhs);
|
|
/* Multiply two unsigned 8 bit to yield an unsigned 16 bit result */
|
|
|
|
unsigned long __fastcall__ umul16x8r32 (unsigned lhs, unsigned char rhs);
|
|
/* Multiply an unsigned 16 bit by an unsigned 8 bit number yielding a 24
|
|
** bit unsigned result that is extended to 32 bits for easier handling from C.
|
|
*/
|
|
|
|
unsigned long __fastcall__ umul16x16r32 (unsigned lhs, unsigned rhs);
|
|
/* Multiply two unsigned 16 bit to yield an unsigned 32 bit result */
|
|
|
|
unsigned int __fastcall__ mul20 (unsigned char value);
|
|
/* Multiply an 8 bit unsigned value by 20 and return the 16 bit unsigned
|
|
** result
|
|
*/
|
|
|
|
unsigned int __fastcall__ mul40 (unsigned char value);
|
|
/* Multiply an 8 bit unsigned value by 40 and return the 16 bit unsigned
|
|
** result
|
|
*/
|
|
|
|
int __fastcall__ _sin (unsigned x);
|
|
/* Return the sine of the argument, which must be in range 0..360. The result
|
|
** is in 8.8 fixed point format, which means that 1.0 = $100 and -1.0 = $FF00.
|
|
*/
|
|
|
|
int __fastcall__ _cos (unsigned x);
|
|
/* Return the cosine of the argument, which must be in range 0..360. The result
|
|
** is in 8.8 fixed point format, which means that 1.0 = $100 and -1.0 = $FF00.
|
|
*/
|
|
|
|
unsigned char doesclrscrafterexit (void);
|
|
/* Indicates whether the screen automatically be cleared after program
|
|
** termination.
|
|
*/
|
|
|
|
|
|
|
|
/* End of cc65.h */
|
|
#endif
|
|
|
|
|
|
|