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    Interrupts on 68000 based macs

    Hi, I'm working on a program in assembly that requires interrupts/exceptions at a frequency that can be modified. From my understanding, interrupts are generated by peripheral devices. Besides the video blanking interrupt which occurs 60 times per second, are there any other time dependent...
  2. O

    Problem with InitGraf in MPW 3.2.3 (assembly)

    Hi, For the life of me I can’t figure out why this code is crashing. It’s literally the first Init call for the toolbox: PEA -4(A5)     ; push address of thePort onto the stack for call to InitGraf _InitGraf I’m using Mini vMac. I’ve tried: different host computers (OS X, Windows 10)...
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