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Chapter 14 Sound
Basic Computer Simulation
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Directions: Step through the program already prewritten below (First "Burn Prom" and "Load RAM") . It will demonstrate how this programmers model of a simple computer works. Next type in your own program (starting at address zero) over the existing program. Burn Prom and then load RAM with data you wish to operate on.
See or make copy of Instruction Set and SPECIFICATIONS.
Basic Computer Tutorial-
This tutorial takes you through program step by step, explaining effect of clicking Single Step button as you go.
COMPUTER SCHEMATIC- Click Here!
Basic Computer Troubleshooting in: Electronic Troubleshooting.
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What Kind of Computer is this.
An experimental computer like this may have existed back in the early 1970's when hobbyists were making the first minicomputers consisting of basic LSI and MSI TTL circuitry, bipolar RAM, a few LED's and toggle switches to be used for input and output control. Back then ROMs could only be programmed by masking, thus programs were generally loaded into these simple solid state computers by hand.
This computer is a partial computer with respect to teaching fundamentals of machine language coding or programming, computer troubleshooting and eventually interfacing. It can count up or down, add numbers and make decisions using a conditional jump statements. This computer lacks a Stack Pointer to support subroutines, but can jump to a routine and then jump back to a specific point in the main program. It also lacks a Negate instruction and the flags required for 2's compliment arithmetic.
Even though this partial computer does not exactly resemble any computer in existence today, it still can be used to teach the following IT skills:
Single Step fault analysis
Machine Language Coding
Applied Base Conversion
Bad memory bit Isolation
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