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    Memory test application for SE/30?

    Is there a memory test program that will run on an SE/30? Ideally, something like memtest86, that will hammer RAM with test patterns for long periods of time.
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    vpRowBytes in video card declaration ROM

    I'm trying to understand the video parameter record structure. From Designing Cards and Drivers for the Macintosh Family 3rd Edition 1992: Does vpRowBytes describe the width of each visible line, or can it be greater? For example, in a 640x480x256 mode, must vpRowBytes be 640? If I set it...
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    Houdini II card - no cable

    I'm trying to get one of these cards working, but it didn't come with a cable. I wired up a VGA jack to the card based on the pinouts here: https://modelrail.otenko.com/apple/power-mac-6100-66-dos-compatible-midi I have sense lines 1 and 2 tied together to identify a VGA/SVGA monitor. Is a...
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    Better than TickCount() timing?

    I've been looking for more precise timing than the 60Hz resolution TickCount() provides. I'm using THINK C 6.0.1. This is what I've found so far: A Time Manager exploit which doesn't seem very efficient or reliable: https://link.springer.com/content/pdf/10.3758/BF03203129.pdf The System 7...
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    Implementing an IAC MIDI sink compatible with OMS

    My goal is to create an application that can receive MIDI data from OMS using its IAC driver. I haven't had much success in finding implementation details of this interface. My understanding is that IAC (inter-application communication) is a collection of methods that applications use to...
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    MacSD Commander

    Commander is a utility for the MacSD, allowing file transfers from the FAT32-formatted SD card to a Mac volume. It eases the process of getting files from the web to old Macs without networking or emulators. Requirements: System 6.0.3 - 7.6.1 (tested also on 7.1 and 7.5.5) 192KB free RAM...
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