This example describes a two-input, 8-bit adder/subtractor design in Verilog HDL. The design unit dynamically switches between add and subtract operations with an
add_sub input port.
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Table 1 lists the ports in the adder/subtractor design.
Table 1. Adder/Subtractor Port Listing
|Input||8-bit data inputs|
Input port to enable dynamic switching between add and subtract operations
|Output||8-bit data output and a carry/borrow MSB bit|
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