Re: A83: Re: Re: inverse sprite

Re: A83: Re: Re: inverse sprite

• To: assembly-83@lists.ticalc.org
• Subject: Re: A83: Re: Re: inverse sprite
• From: Stefan Lennartsson <stefan@infinity.hemmet.s-hem.chalmers.se>
• Date: Wed, 4 Nov 1998 12:05:12 +0100 (CET)
• Delivered-To: assembly-83-outgoing@towerguard.unix.edu.sollentuna.se
• In-Reply-To: <6e0eed0e.363fb317@aol.com>
• Reply-To: assembly-83@lists.ticalc.org

Use a routine like this

	ld	b,8
	ld	hl,sprite
loop:
	ld	a,(hl)
	cpl		; If I'm not wrong this inverts a byte
	inc	hl
	djnz	loop

/Stefan

On Tue, 3 Nov 1998 Jkhum98@aol.com wrote:

> 
> 
> In a message dated 11/03/98 8:48:19 PM, electrum@tfs.net writes:
> 
> >Then you add something like this:
> >
> >xor $ff      ; flip all the bits
> 
> Ok, maybe Im wrong about this, but isnt that command on 1 byte? that would
> only XOR the top line of your 8x8 sprite wouldnt it...?
> 															--Jason K.
> 

• Re: A83: Re: Re: inverse sprite
• From: Stefan Lennartsson <stefan@infinity.hemmet.s-hem.chalmers.se>

• Re: A83: Re: Re: inverse sprite
• From: Jkhum98@aol.com

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