Hello,
I started now with VHDL....so maybe it´s a stupid Question.... but is there an easy way to increment a bitvector? For example something like this:
SIGNAL nano_bin : std_ulogic_vector(31 downto 0); IF....THEN nano_bin
VHDL newbie
Jan 24, 2004
2 Replies
you can add X"00000001" to the result.. or if you include the right file.... 'use ieee.std_logic_signed.all' (I think) then the conversion from 1 to X"00000001" is done automatically.
but you might want to try
library ieee; use ieee.std_logic_signed.all;
...
if (...) then if (nano_bit /= X"FFFFFFFF") then -- I think you can use (others =>
'1') instead of X"FFFFFFFF" here nano_bit
Use package numeric_std from IEEE and the type unsigned.
library ieee ; use ieee.numeric_std.all ;
. . .
SIGNAL nano_bin : unsigned(31 downto 0); IF....THEN nano_bin
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