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dirkwhoffmann / vAmiga

vAmiga is a user-friendly Amiga 500, 1000, 2000 emulator for macOS
https://dirkwhoffmann.github.io/vAmiga
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Kickstart 3.1: ECS Denise bug #723

Closed dirkwhoffmann closed 1 year ago

dirkwhoffmann commented 1 year ago

In #718, the following graphics issue has been reported:

Bildschirmfoto 2022-07-18 um 20 20 13

It is related to ECS Denise. Kickstart 3.1 works as expected with OCS Denise.

The "dancing red line" reported in #721 (Hyperion Rom) is likely the same issue.

dirkwhoffmann commented 1 year ago

Findings: If ECS Denise is detected, Kickstart 3.1 makes use of the new DIWHIGH register which provides a more flexible way of defining the display window. This register is not emulated yet, because I wasn't aware of its existence.

dirkwhoffmann commented 1 year ago

Fixed in v2.1b5