Subject: [stella] Horizontal movement routine in Donkey Kong and Space Jockey From: Dennis Debro <ddebro@xxxxxxxxxxxxx> Date: Fri, 7 Nov 2003 15:52:36 -0500 |
Hi all, I started disassembling DK again. While disassembling I see that Garry is using a similar horizontal position routine that Manuel found in Battlezone! I also saw the same routine in Garry's first game Space Jockey. LF5A4: STA WSYNC ;3 SEC ;2 LF5A7: SBC #$0F ;2 BCS LF5A7 ;2 EOR #$0F ;2 ASL ;2 ASL ;2 ASL ;2 ASL ;2 ADC #$90 ;2 STA RESP0,X ;4 STA WSYNC ;3 STA HMP0,X ;4 RTS Now I wonder if Garry came up with this routine. He says he programmed Space Jockey by disassembling some Activision games. So far (to my knowledge) none of the disassembled Activision games use this routine. Anyway, I thought it was interesting so I thought I'd pass it on. Take care, Dennis ---------------------------------------------------------------------------------------------- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
Current Thread |
---|
|
<- Previous | Index | Next -> |
---|---|---|
Aw: Re: [stella] Source Code, cybergoth | Thread | Re: [stella] Horizontal movement ro, Nick Bensema |
Re: [stella] [POLL] What is everybo, Fabrizio Zavagli | Date | Re: [stella] Horizontal movement ro, Nick Bensema |
Month |