What is the advantage of creating a separate hex_driver module instead of adding the decode within the counter code?

What data type is supported by the LC-3 ISA?

If you've never formatted an EPROM before, how do you do it?

In firmware development if I wanted to develop a driver for the SSD1331, what is the thought process in reading the datasheet? As in what things should I look for in the data sheet? How do I also correspond to what registers on the SSD1331 display with the registers on the board, and what if that board does not have a DC register? What are other ways of analyzing if they have a DC pin but its not called DC? Can you simplify a clear detailed explanation of how I would use SPI to interact with SSD1331 if there are multiple buses that SPI can read from?Reference to the example image. Using this open-source framework that has a SPI driver.