In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Electronegativity wrote:

Hi Tracy, I have each of the port b registers hooked up to a diode, and each of the port a registers hooked up to a switch.

There are 2 blue diodes on top, 2 red on the right, 2 green on the bottom, and 2 yellow on the left.
I plan to have the game produce little light shows to celebrate the players progress every time the length of the memorized sequence increases by 4 colors.

Since it is an SX20 there are no more I/O pins available.
If I bridge the rb.0 and rb.1 pins then I will not be able to light the 2 blue diodes independently, so the transistor is there to let me open or close the bridge.

PJ, I like the idea of running the Psuedo-random generator in the RTCC.
If I understand you correctly the output of the generator is input into the RTCC and incremented some number of times before being pulled out to use as a new seed. This seems like it would take care of the problem that a psuedo-random generator always produces the same series of numbers from a given initial value.

James, I always assumed that the RTCC starts at zero and increments along with the program counter. 

Is this wrong?

If I ran the following program:

RESET Start

Start

nop
nop
nop

Wouldn't the RTCC hold a value of 3?

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