circle
clg
clga
clrarea
vz\clsgraph
closegfx
dcircle
draw
drawb
drawr
lbitmask
lftscrol
line
liner
lscroll
vz\pixladdr
plot
plotpixl
point
pointxy
rbitmask
respixl
rscroll
vz\swapgfxbk
uncircle
undraw
undrawb
undrawr
unplot
window
drawbox
setxy
