VDP register 5 = %01101100 = sprite attribute table at VRAM address $D800.VDP register 4 = %00000111 = background tilemap at VRAM address $E000.VDP register 3 = %00111100 = window tilemap at VRAM address $F000.VDP register 2 = %00110000 = foreground tilemap at VRAM address $C000.(You need to have 32 null bytes in VRAM somewhere for this to work, it doesn't have to be at VRAM address $0000, but this example uses that for convenience.) The code below also assumes the Genesis's VDP (video display processor) has been set up as follows: It is assumed that your tile pattern definition has 32 null bytes starting at VRAM offset $0000. The fastest way to do this is with direct memory access. JSR $C004C2 clear the FIX layer JSR $C004C8 clear hardware sprites Sega Genesis If the scroll position of the screen isn't (0,0), there will still be graphics left over on screen. If it doesn't, use whatever index you consider to be a 'blank tile.' Also, this only clears the top-left nametable, which is all the user can see if no scrolling has taken place. This code assumes that your game's character ROM has a 'blank' tile at tile index $00. display is inactive), as this loop is most likely too slow to finish before vBlank is over. It's best to do this during forced blank (i.e. Lda $ff $ff is 0 if no key has been pressedīne clearscreen Nintendo Entertainment System Sta ($00),y put pixel (random color) to the screen

Lda #$00 store the start address of the screen ($200) 29.2 Library System.Console from Jens Borrisholt.

Escape full screen mac command terminal