Honored Contributor
Honored ContributorHey rromano001, I have been doing an analysis. All what I say is from my ignorance, so you guys are free to correct me, First I must say that I won't be able to make this using the nice resources of my DE1 because my intention is to design a system that can handle not 2 or 3 PE but hundreds PE communicating each other in a torus network. Each of them have to be able to perform Adding, Subtraction, Multiply and Divide to perform the purposed Equation.
Regarding Floating Processing Unit I think is not necessary to make this kind of unit, Since I don't require so exact accuracy. Instead, I will use a very exact Fixed point method, making use of a group of registers to be filled with BCD numbers divided like this 88 . 88888888 (base-10) = 1000 1000 . 1000 1000 1000 1000 1000 1000 1000 1000 (Binary) I'm pretty sure this would be enough, I did a couple of calculations with examples values and they never overpasses these limits and when they do, it doesn't matter for my purpose. Input data can come directly in BCD directly or be converted from base-10, it doesn't matter. Then I will construct the modules for each of operations, Adding, Subtraction, Multiply and Divide for separated. Something that I've found is that VHDL is a REALLY low language, I suspect I cannot directly operate two decimal numbers, but like in Assembler, I have to convert them to BCD and make operations of arithmetic adding, complements (for subtraction), carry, etc, in order to be able to Add decimals numbers. am I right?? Being honest, my professor seems not to have a single IDEA of what I'm doing, he is more of high level language, and he seems to think arithmetic operations is so simple as to start code and call it a day. :(
