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by Beretta_Vexee
276 days ago
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IRQ 7, DMA 1, Port 220H ! Now I have a vague idea of what IRQs and DMA are, but I still have no idea what port 220h was.
Don't forget that the Sound Blaster card had a MIDI port to which you could connect a controller or joystick.
That was also a nightmare to configure, with calibrations on all axes, button remapping, etc. We were really motivated for pre-teens. |
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It’s the address (in I/O space, separate from memory space) which the CPU can read/write to communicate with the sound card.