In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Capt. Quirk wrote:

Sparks,
 on the piece of code you posted, I knew it was supposed to be the 4 MSB's first. But the LCD wouldn't initialize and so I reversed it and then LCD initialized, but displayed 4 zeros instead of my text. That lead me to think the "<<" was producing values that I hadn't calculated on. Based off the experience with putting 4 LSB first, I tried the __PARAM1 code both ways also and thats why it was incorrectly formatted. Also, I followed a link to your web site and spent at least an hour browsing all your pages, WOW.

Johnny Mac,
The code you presnted used $F0 & $0F, I have had problems finding out the most basic information about using these. The stamp Works manual uses them in some of it's most basic LED experiments, It's not enough for me to just do the exercises, I need to know all the basics so I know why they used variables like that.

Do you have any recomended reading?

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