Path: chuka.playstation.co.uk!news From: "Andrew Partington" Newsgroups: scee.yaroze.freetalk.english Subject: Re: negative scrolling on homebrew map routine - need help!! Date: Fri, 23 Mar 2001 00:47:16 -0000 Organization: PlayStation Net Yaroze (SCEE) Lines: 36 Message-ID: <99e5uf$mp51@www.netyaroze-europe.com> References: <3AAF7BB2.B427AED3@harbinger.com> <98o38v$ij81@www.netyaroze-europe.com> <98p3qp$rms2@www.netyaroze-europe.com> <98t840$6f5@www.netyaroze-europe.com> <99057g$3ok7@www.netyaroze-europe.com> <3AB6404F.65C9AF1C@harbinger.com> <9961fn$7jl4@www.netyaroze-europe.com> <99624q$7jl5@www.netyaroze-europe.com> <9963bb$7jl6@www.netyaroze-europe.com> <997j6l$7jl8@www.netyaroze-europe.com> <3AB774C7.6B4D8F95@harbinger.com> <998bjc$7jl11@www.netyaroze-europe.com> <3AB8A751.A5D36CCF@harbinger.com> <3AB8DFBA.7BDE2A4E@harbinger.com> <99b11c$cia1@www.netyaroze-europe.com> NNTP-Posting-Host: modem-239.arizona.dialup.pol.co.uk X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.00.2314.1300 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2314.1300 Hi everyone just a quick update for those interested: With a VSync callback in place, and using 32*32 16-bit sprites for optimal texture cache usage, i'm still getting around 250 HSyncs in the worst case -- not enough to cause visible slowdown but enough so that I can't do anything else in the frame - must try harder! Still no joy with setting the stack to the DCache, it either black screens on me, or doesn't even leave the brick screen after "go" has been executed by siocons... no luck with PSComUtil either... I can copy structures into the DCache and point at them successfully with no probs though, but there doesn't seem to be much in the way of speed increase so far... Peter Armstrong wrote in message news:99b11c$cia1@www.netyaroze-europe.com... > "Andrew Partington" wrote in message > news:3AB8DFBA.7BDE2A4E@harbinger.com... > CW code does seem to be a little slower than GCC code, I've not really done > any proper comparisons but in one instance the GCC compiled code was around > 10% faster than CW. Cheers for the info Peter - I reckon its time to try GCC!! (i'm getting desperate now) Andy