8 bit adder. GitHub Gist: instantly share code, notes, and snippets. 8 bit adder. GitHub Gist: instantly share code, notes, and snippets. ... You signed in with ... Oct 06, 2013 · Test Bench For 4-Bit Magnitude Comparator in VHDL ... Given below code will generate 8 bit output as sum and 1 bit carry as cout. it also takes two 8 bit inputs as a ... Jan 10, 2018 · Binary decoder has n-bit input lines and 2 power n output lines. It can be 2-to-4, 3-to-8 and 4-to-16 line configurations. Binary decoder can be easily constructed using basic logic gates. VHDL Code of 2 to 4 decoder can be easily implemented with structural and behavioral modelling. From Wikibooks, open books for an open world < VHDL for FPGA DesignVHDL for FPGA Design. Jump to navigation Jump to search Mar 11, 2010 · Here is the code for 4 bit comparator using if .. elsif ... else statements.The module has two 4-bit inputs which has to be compared, and three 1-bit output lines.One of these output lines goes high depending upon whether the first number is equal to,less or greater than the second number. STD_LOGIC_1164.