On Tue, 25 Jun 2002, Ruffin Bailey wrote:
> out DAsm and did my biannual night's worth of 2600 hacking.
Yay! Maybe we can team up next year and get a full day/night combo. We
can argue later about who gets to work night and who has to work day. ;)
> Second... in the code I open up initializing $80 and $81, the variables
> where I'm storing M0's y-position and M1's y-position, respectively, to
> #$40, yet the variables start out at zero when the app starts up. I'm
heh...you're gonna kick yourself for this one. Here's the offending
snippet of your code with comments amended.
> START:
> SEI ;2
> CLD ;2
> LDA #$40 ;2
> STA $80 ;3 initialize M0 y-position
> STA $81 ;3 initialize M1 y-position
> LDX #$FF ;2
> TXS ;2
> LDA #$00 ;2
> LF00B: STA VSYNC,X ;4 this loop clears all of ram!!!!
> DEX ;2
> BNE LF00B ;2
-Chris
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