Testing IRQs on IIgs

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arekkusu's picture
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Testing IRQs on IIgs
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Package icon IRQTest 140k ProDOS image23.36 KB

Hi folks, I'm fixing a few emulation bugs, and am hoping to find a volunteer to help verify behavior on real hardware.

Specifically, I'm looking for someone with a ROM 1 Apple IIgs, and the ability to run this disk image (i.e. with a BMOW floppy emulator, XDrive, or similar).

This disk contains:

  • IRQTEST, a small suite verifying details of VGC and MegaII IRQ behavior
  • HANGVGC and
  • HANGMG2, which purposely mis-use IRQs in ways that *should* hang the system

These tests all work as expected on my ROM 3 Apple IIgs:

If anyone can provide some independent verification on a ROM 1 (a photo, or just report back that the results match mine above), it'd be much appreciated.