RE: Old Project - Finish It?

Correction, I meant y=128.

-----Original Message-----
From: owner-vectorlist@synthcom.com
[mailto:owner-vectorlist@synthcom.com]On Behalf Of Todd Bordelon
Sent: Thursday, February 08, 2001 10:48 PM
To: vectorlist@synthcom.com
Subject: RE: VECTOR: Old Project - Finish It?

I'm forgetting something here (getting reoriented with the project)..
Look at what I have for the Asteroids vector ROM disassembly:

; -------------------------------------------------------------------------
; 0000 - 0087 : Asteroids test pattern.
; -------------------------------------------------------------------------
0000: 80 A0 00 00 ABS (0,128) ; Position Beam to top left
0004: 00 70 00 00 VCT (0,0) ;
0008: 00 90 FF 73 VCT (1023,0) ; Draw top of test pattern box
000C: FF 92 00 70 VCT (0,767) ; Draw right of test pattern box
0010: 00 90 FF 77 VCT (-1023,0) ; Draw bottom of test pattern box
0014: FF 96 00 70 VCT (0,-767) ; Draw left of test pattern box
0018: FF 92 FF 72 VCT (767,767) ; Begin drawing diagonal lines
001C: 00 86 00 72 VCT (256,-256) ; " "
0020: FE 87 FE 77 VCT (-511,-511) ; " "
0024: 00 92 00 76 VCT (-512,512) ; " "
0028: FE 81 00 72 VCT (256,255) ; " "
002C: FF 96 FF 72 VCT (767,-767) ; " "
0030: 7F A3 FF 03 ABS (1023,895) ; Position beam to bottom right
0034: 00 70 00 00 VCT (0,0) ; Resume diagonal line drawing
0038: FF 96 FF 76 VCT (-767,-767) ; " "
003C: FE 81 00 76 VCT (-256,255) ; " "
0040: 00 92 00 72 VCT (512,512) ; " "
0044: FE 87 FE 73 VCT (511,-511) ; " "
0048: 00 86 00 76 VCT (-256,-256) ; " "
.
.
.

I'm not trusting this and think something fishy is in my code.
Questions:

1.) Look at 0x0030. AVG and DVG has a maximum Y of 768, correct?
2.) Would someone with an Asteroids verify the test pattern
     starts around X=128 and touches the bottom of the screen
     (no mame, no asteroids right now)

Todd

-----Original Message-----
From: owner-vectorlist@synthcom.com
[mailto:owner-vectorlist@synthcom.com]On Behalf Of Clay Cowgill
Sent: Sunday, January 28, 2001 1:03 AM
To: vectorlist@synthcom.com
Subject: Re: VECTOR: Old Project - Finish It?

Oh, hell yeah! ;-)

-Clay

>I was working on this a LONG time ago. Any interest in it being finished?
>
>http://members.home.net/tmbordelon/vect2.jpg

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Received on Fri Feb 9 00:06:17 2001