Synthesis tool doesnot support that.
instead u try this,use a reset signal in u'r entity.
and initialise it when reset comes
i hope u understood.
if (reset='1') then
thatsignal<="what ever value"
else
do the remainig.
i think u'r question is valid.
which version of xilix r u using?
if u r using trial version,
loops r supported but,
the statements
EXIT,BREAK,NEXT
wont work
hai mahal,
u just write this code
some signal is there of name clk
clk<=not(clk) after 5ns.
depending on the delay that u keep
u'r clock frequency depends on delay
dont forget to initialise the signal.
how did u implement memeory.
i guess it is a 2 dimentional array of bit or std_logic
then,memory elements are accessed in the same way as
the array elements.
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