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 #   |
|          |
+----------+

dpyinfo.jb

// Show display info.

#include <stdio.h>
#include <conio.h>
#include <jbit.h>

int main()
{
	char s[16];
	int n;
	unsigned char flags;
	unsigned char alpha;

	req_put(REQ_DPYINFO);
	req_end();
	sprintf(s, "%dx%d",
		*(unsigned*)&IODAT[DPYINFO_WIDTH],
		*(unsigned*)&IODAT[DPYINFO_HEIGHT]);
	cputsxy(0, 0, s);
	flags = IODAT[DPYINFO_FLAGS];
	n = sprintf(s, "%s %u+",
		flags & DPYINFO_FLAGS_ISCOLOR ? "COL" : "B/W",
		IODAT[DPYINFO_COLORDEPTH]);
	cputsxy(0, 1, s);
	alpha = IODAT[DPYINFO_ALPHADEPTH];
	if (alpha > 0)
		sprintf(s, "%u", alpha);
	else
		sprintf(s, "?");
	cputsxy(n, 1, s);
	if (flags & DPYINFO_FLAGS_ISMIDP2)
		cputsxy(0, 2, "MIDP2");
	else
		cputsxy(0, 2, "MIDP1");
	cgetc();
}

dpyinfo.c