Search found 3 matches

by asmodean
Tue May 20, 2008 4:37 am
Forum: PS2 Development
Topic: Forcing games to 480p
Replies: 5
Views: 5964

Rather than patching the video code directly I set a hardware breakpoint at the GS register(s) to detect any write attempts. On a breakpoint hit, I simply modified the original values that were written to the registers to fit my needs. That's an interesting idea, I'm surprised hw breakpoints work o...
by asmodean
Mon May 19, 2008 5:17 am
Forum: PS2 Development
Topic: Forcing games to 480p
Replies: 5
Views: 5964

...maybe VSync interrupt handling also has to be patched somehow (depending on how a particular game uses VSync synchronization)... That was my immediate thought too. I'm not very familiar with this, but I speculated that the game was getting vsync interrupts for every half-frame in interlaced mode...
by asmodean
Sun May 18, 2008 12:42 pm
Forum: PS2 Development
Topic: Forcing games to 480p
Replies: 5
Views: 5964

Forcing games to 480p

I've written a small tool that can force some games to run at 480p. I'm interested to get any feedback from you guys experienced with the platform. The tool patches parameters to sceGsResetGraph() and can adjust the DY value in tGS_DISPLAY2 (some games pass a smaller value when in 480p, causing the ...