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123 lines
3.7 KiB
C
123 lines
3.7 KiB
C
/*
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* Copyright (c) 2003, Adam Dunkels.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This file is part of the "ctk" console GUI toolkit for cc65
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*
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* $Id: ctk-mouse-arch.c,v 1.1 2007/05/23 23:11:27 oliverschmidt Exp $
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*
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*/
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#include "ctk/ctk.h"
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#include "ctk-mouse.h"
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#include "ctk-conf.h"
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#if CTK_CONF_MOUSE_SUPPORT
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unsigned short ctk_mouse_joyy, ctk_mouse_joyx;
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unsigned char ctk_mouse_firebutton;
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extern void ctk_mouse_asm_irq(void);
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/*-----------------------------------------------------------------------------------*/
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#pragma optimize(push, off)
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void
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ctk_mouse_init(void)
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{
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/* Place mouse pointer at the middle of the screen. */
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ctk_mouse_joyx = 160;
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ctk_mouse_joyy = 100;
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/* Setup and start IRQ */
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asm("sei");
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asm("lda #<%v", ctk_mouse_asm_irq);
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asm("sta $0314");
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asm("lda #>%v", ctk_mouse_asm_irq);
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asm("sta $0315");
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asm("cli");
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}
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#pragma optimize(pop)
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/*-----------------------------------------------------------------------------------*/
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unsigned short
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ctk_mouse_x(void)
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{
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if(ctk_mouse_joyx >= 342) {
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ctk_mouse_joyx = 0;
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} else if(ctk_mouse_joyx >= 320) {
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ctk_mouse_joyx = 319;
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}
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return ctk_mouse_joyx;
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}
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/*-----------------------------------------------------------------------------------*/
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unsigned short
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ctk_mouse_y(void)
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{
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return ctk_mouse_joyy;
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}
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/*-----------------------------------------------------------------------------------*/
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unsigned char
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ctk_mouse_button(void)
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{
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return ctk_mouse_firebutton;
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}
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/*-----------------------------------------------------------------------------------*/
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unsigned char
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ctk_mouse_xtoc(unsigned short x)
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{
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return x / 8;
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}
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/*-----------------------------------------------------------------------------------*/
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unsigned char
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ctk_mouse_ytoc(unsigned short y)
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{
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return y / 8;
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}
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/*-----------------------------------------------------------------------------------*/
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#pragma optimize(push, off)
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void
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ctk_mouse_hide(void)
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{
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/* Turn off sprites 0 and 1 */
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asm("lda #0");
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asm("sta $d015");
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}
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#pragma optimize(pop)
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/*-----------------------------------------------------------------------------------*/
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#pragma optimize(push, off)
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void
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ctk_mouse_show(void)
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{
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/* Turn on sprites 0 and 1 */
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asm("lda #3");
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asm("sta $d015");
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}
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#pragma optimize(pop)
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/*-----------------------------------------------------------------------------------*/
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#endif /* CTK_CONF_MOUSE_SUPPORT */
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