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Altera_Forum
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11 years ago

bit shift and extract

Hi everyone! i want to shift a number 24 bit to the right (cut off), and extract the remaining 8 bit. how to do it in vhdl? a = b >>24 & 0xff; So far I tried to work with srl, shift_...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

I'm not sure about the syntax, but this is the usual way to extract bits in HDL:

variable tvect : std_logic_vector(7 downto 0);

tvect := conv_std_logic_vector(temp);

d3 := conv_integer(treg(31 downto 24);