File GSAMP.FT (FORTRAN source file)
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C
C PROGRAM TO DRAW A RECTANGULAR BORDER
C
COMMON IGX1, IGX2
DIMENSION IGX1(1600), IGX2(1600)
CALL GCLEAR
CALL GSTART
CALL GPLOT(0,0,0)
CALL GPLOT(188,0,1)
CALL GPLOT(188,199,1)
CALL GPLOT(0,199,1)
CALL GPLOT(0,0,1)
C LOOP UNTIL SWITCH REGISTER = 1 IS DETECTED
10 IF (IRDSW(0) - 1) 10,20,10
20 CALL GSTOP
STOP
END
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