A86: Grayscale Sprites

To: assembly-86@lists.ticalc.org
Subject: A86: Grayscale Sprites
From: jdaomteys@juno.com
Date: Tue, 30 Nov 1999 22:18:47 -0500
Reply-To: assembly-86@lists.ticalc.org


What is the best grayscale sprite routine (speedwise)? I'm trying to use
the SDR+16 routine from Macross Software, but I can't seem to get it
working (probably because I'm using invalid grayscale layers). Here's the
source, in case any of you see anything wrong: (note that it uses the new
include files from ACZ, and that old86.h is needed by SDR+16)

#include "ti86asm.inc"
#include "old86.h"

.org _asm_exec_ram

Ww = 1
Hh = 8
PAGE1ADDR = $0000
PAGE2ADDR = $5000

	call _clrLCD
Test:
	ld b, 25
	ld c, 25
	ld hl, Sprite
	ld de, Mask
	call SDR16Plus2
;	jp Test
	ret

#include "sdr16p86b.h"

Sprite:
	.db %01111110
	.db %11111111
	.db %11111111
	.db %11100111
	.db %11100111
	.db %11111111
	.db %11111111
	.db %01111110
	.db %01111110
	.db %10000001
	.db %10000001
	.db %10011001
	.db %10011001
	.db %10000001
	.db %10000001
	.db %01111110

Mask:
	.db %00000000
	.db %00000000
	.db %00000000
	.db %00000000
	.db %00000000
	.db %00000000
	.db %00000000
	.db %00000000
.end

Thanks in advance :)

--James
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Follow-Ups:

A86: Re: Grayscale Sprites

From: "David Phillips" <david@acz.org>

A86: Re: Grayscale Sprites

From: "Kirk Meyer" <kirkmeyer@bigfoot.com>