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akatsuki105 / worldwide

This is my OLD and BAD GameBoy Emulator, please visit DawnGB, my new GameBoy emulator!
https://github.com/akatsuki105/dawngb
MIT License
597 stars 27 forks source link

Inaccurate emulation: Prehistorik Man (USA, Europe).gb #1

Open meithecatte opened 4 years ago

meithecatte commented 4 years ago

When playing the following ROM:

64f43161eb16eb1be99262c36867bc79  Prehistorik Man (USA, Europe).gb

on commit 86fd56ee2dc9e78e1ed5b408c831230d9a3418ca, I observe two problems:

  1. When the publisher logo appears (TITUS with a fox), the entire picture swings back and forth.

prehistorik-logo-swing-broken

Expected behavior (screenshot from SameBoy): logo waves per-scanline, appearing part by part:

prehistorik-logo-swing

  1. When the title screen appears, the scrolling text is broken, only flickering lines can be seen. The top scanline doesn't scroll its clouds.

prehistorik-scrolling-text-broken

Expected behavior:

prehistorik-scrolling-text