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Altera_Forum
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12 years ago

ALU in VHDL newbi having some major issues

Hi guys, I need to serious help over here. I need to code an ALU that can perform different function base on the op code, add, subtract, logical shift left and right. namely these: https://ww...
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Altera_Forum
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12 years ago

VHDL only does what you tell it:

for i in 0 DOWNTO 31 loop

will loop a grand total of 0 times.

for i in 31 DOWNTO 0 loop

will loop a grand total of 32 times

Hence why the top code works, and bottom code doesnt.