%SIGNAL
PIN   4 =  A0 
PIN   5 =  A1 
PIN   6 =  A2 
PIN   7 =  A3 
PIN   8 =  A7 
PIN  19 =  CRTC_CS 
PIN  17 =  CRTC_E 
PIN  18 =  CRTC_RW 
PIN   1 =  IOREQ 
PIN   2 =  RD 
PIN   3 =  WR 
%END

%FIELD
%END

%EQUATION
CRTC_CS =>
    A7 & !IOREQ

CRTC_E =>
    !IOREQ

CRTC_RW =>
    WR

%END