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Altera_Forum
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14 years ago

Array Indexing possible in VHDL?

Hi everyone, i have an enquiry regarding VHDL. let's say i have a 128 bits key which is split into 4 parts: --divide the key into 4 parts k0<=key(127 downto 96); k1<=key(9...
Altera_Forum's avatar
Altera_Forum
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14 years ago

You can create an indexed type

type key_t is array (0 to 3) of std_logic_vector(31 downto 0);

signal k : key_t;

and then in your code, you can take advantage of loops too

process(key)

begin

for i in 0 to 3 loop

k(i) <= key(32*(i+1)-1 downto 32*i);

end loop;

end process;

Cheers,

Dave