SpiceWare's Blog

This is actually cool. Been a fan of Warlords for years and one I love to break out to play against three other friends. Thanks for doing this.

No problem!

 

I seldom break out Warlords anymore. When I do it's to highlight the differences with Medieval Mayhem.

Thank you for the Warlords fix. What are the two Defender links about? Does that game have vsync issues too?

You're welcome @mario64!

 

I don't recall on Defender.  I searched my hard drive and found those files in ~Projects/Atari/Helping Others/ScottWhite/

 

The other directories I have under Helping Others are mostly AtariAge user names, so I checked AtariAge for a Defender related post by user ScottWhite, but that username does not exist. Usernames can be changed on AtariAge, so it's possible Scott's now using a different username.

 

Anyway I've added the source to the blog entry.  It was created by Stella and my changes are:

 

 

; set to 1 for VSYNC fix, set to 0 for original
VSYNCFIX    = 1

VBLANKFIX  = 1

...

;---------------------------------------
 if VSYNCFIX = 1
    lda #$36
    ldy #$00
    ldx #$7f
    sta WSYNC
    sty VSYNC
    sta TIM64T
    sty PF0
;    stx VBLANK
 else
    sta     WSYNC                   ;3   =   3
;---------------------------------------
    lda     #$36                    ;2        
    sta     TIM64T                  ;4        
    ldy     #$00                    ;2        
    sty     PF0                     ;3        
    sty     VSYNC                   ;3        
    ldx     #$7f                    ;2        
    stx     VBLANK                  ;3
 endif

...

 if VBLANKFIX = 1
    lda     #$26                    ;2        
    sta     TIM64T                  ;4
;    sta WSYNC
    sta VBLANK
 else
    lda     #$26                    ;2        
    sta     TIM64T                  ;4
 endif    

 

Interesting. Thanks for the follow-up