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Real Mode OS Warning: Difference between revisions

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Real Mode OS Warning (view source)

Revision as of 20:08, 16 April 2017

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(Created page with " Using BIOS functions (and "avoiding" the need to write drivers) can seem easier for beginners that don't know any better, however it makes everything much much harder in the ...")
 
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=== Serial Ports ===
 
The BIOS serial port code is uses polling to send and receive bytes (and there is no "FIFO buffers"). This means that it's almost impossible to use the BIOS functions for serial ports to receive data without losing data, and almost impossible to use the BIOS functions for serial ports to send data without huge performance problems.
 
=== Video ===
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