appl.cc.svn-base

德国Erlangen大学教学操作系统源码。

/*****************************************************************************/
/* Betriebssysteme                                                           */
/*---------------------------------------------------------------------------*/
/*                                                                           */
/*                         A P P L I C A T I O N                             */
/*                                                                           */
/*---------------------------------------------------------------------------*/
/* Die Klasse Application definiert die einzige Anwendung von OO-Stubs.      */
/*****************************************************************************/

/* INCLUDES */

#include "user/appl.h"
#include "device/cgastr.h"
#include "machine/keyctrl.h"
#include "machine/cgascr.h"

/* GLOBALE VARIABLEN */

extern CGA_Stream kout;
extern Keyboard_Controller kbctrl;
extern void delay();
         
void Application::action ()
 {
///////// test der operatoren///////////////////////////////////////////////////////////////////
	int a= -100, b= -200, c= -300, d= -400;
	kout << hex << a <<endl << dec << b <<endl << oct << c <<endl << bin << d << dec <<endl;
	kout.flush();
//////////////////////////////////////////////////////////////////////////////////////////////


/////// teste nun die tastatur ////////////////////////////////////////

	while (true)	
	{
	
		int repeat= 0;
		int delay= 0;
		Key k= kbctrl.key_hit();
		if (k.valid())
		{

///////////////// die kontrol taste wurde gedrueckt
			if (k.ctrl())
			{
				switch (k.scancode())
				{

				case Key::scan::up:	// arrow up
					if (repeat>0) repeat--;
					break;

				case Key::scan::down:	// arrow down
					if (repeat<31) repeat++;
					break;

				case Key::scan::left:	// arrow left
					if (delay>0) delay--;
					break;

				case Key::scan::right:	// arrow right
					if (delay<7) delay++;
					break;
				}
				kbctrl.set_repeat_rate(repeat, delay);
				
			}

//////////////////// keine kontrol taste wurde gedrueckt

			else
			{
				int cx, cy;
				switch (k.scancode())
				{

				case Key::scan::up:	// arrow up
					kout.getpos(cx, cy);
					if (cy>0) cy--;
					kout.setpos(cx, cy);
					break;

				case Key::scan::down:	// arrow down
					kout.getpos(cx, cy);
					if (cy<CGA_Screen::CGA_Attrib::screen_height-1) cy++;
					kout.setpos(cx, cy);
					break;

				case Key::scan::left:	// arrow left
					kout.getpos(cx, cy);
					if (cx>0) cx--;
					kout.setpos(cx, cy);
					break;

				case Key::scan::right:	// arrow right
					kout.getpos(cx, cy);
					if (cx<CGA_Screen::CGA_Attrib::screen_height-1) cx++;
					kout.setpos(cx, cy);
					break;
				default:
					kout <<k.ascii();
					kout.flush();
				}
			}
			
		}
	}




 
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