[sdiy] Pressing buttons

[>>>marjan<<<]

I'm in need of nice little cct, there are 4 buttons SPST,
I need 4 outputs, when you press button#1 output#1 goes to
logic 1 (high) all other outputs to 0, press button#2
output #2 goes high all others to 0 and so on.
Also output must stay high until active, not just a pulse. 
And it should be CMOS. 
I'd make it but my mind spits just sorta priority
codec with f-fs solution, with lotsa gates. There should
be something more elegant and simple, even inside a cmos
chip? 

I know you know it! 
And no PIC solutions please :)

ThanX!

-- 



marjan


me    : Marjan Urekar
e-mail: urekar.m at eunet.yu
s-diy : http://surf.to/marjansystems
music : http://go.to/forcemajeure