* * DGR test program * * (c) 2016, Brutal Deluxe Software * http://www.brutaldeluxe.fr/ * * Use them at your own risk ;-) * mx %11 org $300 lst off *---------- Entry point KBD = $C000 KBDSTROBE = $C010 *---------- Driver equates DGROn = $1800 ; Turn DGR on DGROff = DGROn+3 ; Turn DGR off DGRClear = DGROff+3 ; Clear screen DGRPutPixel = DGRClear+3 ; Draw a pixel on screen DGRPutPixel2 = DGRPutPixel+3 ; Alt draw a pixel on screen DGRGetPixel = DGRPutPixel2+3 ; Get the color of a pixel on screen DGRGetPixel2 = DGRGetPixel+3 ; Alt get the color of a pixel on screen DGRSetColor = DGRGetPixel2+3 ; Set the pen color DGRSetXY = DGRSetColor+3 ; Set X1/Y1 coordinates DGRSetXY2 = DGRSetXY+3 ; Set X2/Y2 coordinates DGRSetPage = DGRSetXY2+3 ; Set page1/page2 data DGRDrawHLine = DGRSetPage+3 ; Draw an horizontal line DGRDrawHLine2 = DGRDrawHLine+3 ; Alt draw an horizontal line DGRDrawVLine = DGRDrawHLine2+3 ; Draw a vertical line DGRDrawVLine2 = DGRDrawVLine+3 ; Alt draw a vertical line *---------- The code jsr DGROn ; Turn DGR on lda #$00 ; Set color to black sta theCOLOR clearLOOP lda theCOLOR ; Please erase the screen jsr DGRClear ]lp lda KBD ; Wait for a keypress bpl ]lp bit KBDSTROBE inc theCOLOR ; Next color, please lda theCOLOR ; There are 16 of them cmp #16 bne clearLOOP *--- Test 2 ldx #0 ldy #0 jsr DGRSetXY lda #6 ldx #79 ldy #0 jsr DGRDrawHLine ldx #79 ldy #0 jsr DGRSetXY lda #6 ldx #79 ldy #47 jsr DGRDrawVLine jsr $fd0c jsr DGROff ; Turn DGR off rts ; Exit *--- My test data theCOLOR ds 1