Demo (SDK)

Programs
Assembly: bgcol1 bgcol2 charset ciao fill1 fill2 gamekeys idummy iload ipnggen1 ipnggen2 irawrgba keypad loop1 loop2 loop3 maze resize setpal sprites stdpal tiles vintage C: bounce cciao clock cpubm dpyinfo fps gperf hello mandelbrot newline pngtest rand time

Support Files
c64jb.c cgetc.s chline.s clock.s clrscr.s color.s cputc.s crt0.s ctype.s cvline.s gotox.s gotoxy.s gotoy.s header.s jbit.cfg jbit.h jbit.inc kbhit.s mainargs.s randomize.s vsync.s wherex.s wherey.s _scrsize.s _systime.s

+----------+
|          |
|  JBitRT  |
|  MIDlet  |
| Emulator |
|          |
|  1 2 3   |
|  4 5 6   |
|  7 8 9   |
|  * 0 #   |
|          |
+----------+

hello.jb

/*
 * Fancy hello world program using cc65.
 *
 * Ullrich von Bassewitz (ullrich@von-bassewitz.de)
 *
 */



#include <stdlib.h>
#include <string.h>
#include <conio.h>
#include <dbg.h>



/*****************************************************************************/
/*     	      	    	  	     Data	     			     */
/*****************************************************************************/



static const char Text [] = "Hello world!";



/*****************************************************************************/
/*     	      	    	  	     Code	     			     */
/*****************************************************************************/



int main (void)
{
    unsigned char XSize, YSize;

    /* Set screen colors, hide the cursor */
    textcolor (COLOR_WHITE);
    bordercolor (COLOR_BLACK);
    bgcolor (COLOR_BLACK);
    cursor (0);

    /* Clear the screen, put cursor in upper left corner */
    clrscr ();

    /* Ask for the screen size */
    screensize (&XSize, &YSize);

    /* Draw a border around the screen */

    /* Top line */
    cputc (CH_ULCORNER);
    chline (XSize - 2);
    cputc (CH_URCORNER);

    /* Vertical line, left side */
    cvlinexy (0, 1, YSize - 2);

    /* Bottom line */
    cputc (CH_LLCORNER);
    chline (XSize - 2);
    cputc (CH_LRCORNER);

    /* Vertical line, right side */
    cvlinexy (XSize - 1, 1, YSize - 2);

    /* Write the greeting in the mid of the screen */
    gotoxy ((XSize - strlen (Text)) / 2, YSize / 2);
    cprintf ("%s", Text);

    /* Wait for the user to press a key */
    (void) cgetc ();

    /* Clear the screen again */
    clrscr ();

    /* Done */
    return EXIT_SUCCESS;
}

hello.c