See this script: <a href="https://gist.github.com/dmsc/f67605500431ab22fdb6ced05d01c629" rel="nofollow">https://gist.github.com/dmsc/f67605500431ab22fdb6ced05d01c62...</a><p>It does minimal source modifications by using older MASM versions.<p>There are 63 missing symbols:
CLREOL
CLRSCN
CSRATR
CSRDSP
DONOTE
DOWNC
EDTMAP
FETCHC
FKYADV
FKYFMT
GETFBC
GETHED
GRPSIZ
GTASPC
GWINI
GWTERM
INFMAP
INICOM
INKMAP
KEYINP
LCPY
LEFTC
MAPSUP
MAPXYC
NREAD
NSETCX
NWRITE
PEKFLT
PGINIT
PIXSIZ
PNTINI
POKFLT
POLLEV
PRTMAP
RDPEN
RDSTIK
RDTRIG
READC
RECCOM
RIGHTC
SCALXY
SCANL
SCANR
SCRATR
SCRINP
SCROLL
SCROUT
SCRSTT
SEGINI
SETATR
SETC
SETCBF
SETCLR
SETFBC
SNDCOM
SNDLPT
STACOM
STOREC
SWIDTH
TDOWNC
TRMCOM
TUPC
UPC