a:xsub
;
;  Build ddt180
;
;  Assemble with Microsoft M80:
m80 =ddt180.z80/z
;  If you prefer SLR, use the following line instead:
;z80asm ddt180/M
;
;  Generate PRL file using Digital Research Link-80:
link ddt180[op]
;
;  Convert to COM file:
;ddt180 ddt180.prl
ddtz ddt180.prl
F ddt180n.com
W 200 H
G 0
;
;  If you don't have ddt180 or ddtz (yet), do it with ddt.
;  Adjust the end address, if file length changes:
;
;ddt ddt180.prl
;M200,28FF,100
;G0
;save 40 ddt180n.com