realizing that probably the reason i know about interrupts is because of 1) the Commodore 641 and later 2) having to worry about manually allocating IRQ lines in the DOS/Windows 9X era, then one day in The Year 2000 i had a computer with onboard sound and usb 1.0 and an internal dialup modem and all that bluster just went away so that’s where my knowledge calcified. how far we’ve come
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The Commodore 64 used interrupts to implement certain features, but if I remember right it used polling to read the keyboard2 and talk on the external I/O bus so I really should have learned not to assume
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Except for the “restore” key, specifically, which generated an interrupt
