Step PPU slower; batching had issues with Star Fox

twvd · Mar 23, 2024 · 5b0ab04 · 5b0ab04
1 parent 2b32271
commit 5b0ab04
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Showing 2 changed files with 2 additions and 13 deletions.
diff --git a/src/snes/emulator.rs b/src/snes/emulator.rs
@@ -254,7 +254,7 @@ where
             }
             Schedule::PPU => {
                 // 5.3 MHz
-                Ok(self.cpu.bus.ppu.tick(1)? * 4)
+                Ok(self.cpu.bus.ppu.tick(24)? * 4)
             }
             Schedule::SPC700 => {
                 // 1.024 MHz

diff --git a/src/snes/ppu/ppu.rs b/src/snes/ppu/ppu.rs
@@ -292,18 +292,7 @@ where
             }
         }
 
-        let batch = if self.vblank {
-            // Next time slice after VBlank
-            (Self::CYCLES_PER_SCANLINE * Self::SCANLINES_PER_FRAME) - self.cycles
-        } else if self.hblank {
-            // Next time slice after HBlank
-            Self::CYCLES_PER_SCANLINE - Self::LINE_HBLANK_START
-        } else {
-            // Next time slice at HBlank
-            Self::LINE_HBLANK_START
-        };
-        self.cycles += batch - ticks;
-        Ok(batch)
+        Ok(ticks)
     }
 }