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

;
; Ullrich von Bassewitz, 08.08.1998
; JBit port by Emanuele Fornara
;
; void chlinexy (unsigned char x, unsigned char y, unsigned char length);
; void chline (unsigned char length);
;

    	.export		_chlinexy, _chline
	.import		popa, _gotoxy, cputdirect
	.importzp	tmp1

        .include        "jbit.inc"
                                 
_chlinexy:
       	pha	    		; Save the length
	jsr	popa		; Get y
       	jsr    	_gotoxy		; Call this one, will pop params
	pla			; Restore the length

_chline:
   	cmp	#0		; Is the length zero?
   	beq	L9  		; Jump if done
	sta	tmp1
L1:    	lda    	#CH_HLINE       ; Horizontal line, screen code
   	jsr	cputdirect	; Direct output
   	dec	tmp1
	bne	L1
L9:	rts

chline.s