Hot answers tagged kernel
Regarding the INTh commands you reference (see: BIOS Interrupt Calls), you are correct that this did use to be the way that an OS would access low-level hardware. In a modern machine, these calls (if executed) often end up in the CSM (Compatibiliy Support Module, at least in AMI parlance) which can handle these requests. In the instance of say a video BIOS ...
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