Datamax-O'Neil VMP SERIES AN-16 (Single Byte Character Set Font File Format) - Manual (Page 7)

FONT FILE EXAMPLE – VERSION 1.0 PROPORTIONAL:
Since the file must be in binary, it is often easiest to create using an assembler. The following example shows the header,
and two of the characters in a form ready to assemble. The object code output, then, can be sent to the printer using the
Oneil WINDOWS configuration program, or a special command.
dl PT10B_LINK ; Value is reset internally and can be any 4 byte number
db "1.0" ; font version number (1.0 flags this header and respresentation)
db 047H ; code resulting from mod 256 summation of name of font below
db "PT10B" ; name of this font
db 'E' ; single letter used as an alternate to refer to this font
db 05d ; use 05 for proportional text
dw 0FFFFH ; (ABSOLUTE = 12) number of dots wide for this font
dw 20d ; number of dots high for this font
db 02d ; number of bytes in each dot row of each character
dw 40d ; number of bytes in each character represented in this font
db 'A' ; The letter "A" is first ASCII character represented
db 'B' ; The letter "B" is last ASCII character represented
db 00d ; reserved
db '1' ; USER font version number
db "04/30/96" ; USER font creation date
db "2 CHARS EXAMPLE FONT" ; USER 20 character description
; BIT MAPPED PATTERN OF LETTER "A":
dw 13d ; character is 11 wide plus 2 whitespace
db 006h,000h
db 006h,000h
db 00fh,000h
db 00fh,000h
db 01fh,080h
db 019h,080h
db 039h,0c0h
db 03fh,0c0h
db 07fh,0e0h
db 060h,060h
db 0e0h,070h
db 0c0h,030h
db 0c0h,030h
db 0c0h,030h
db 000h,000h
db 000h,000h
db 000h,000h
db 000h,000h
db 000h,000h
db 000h,000h