Int 7F  - Halo88 - API                                                     [V]

   BX = function
       64h arc
       65h bar
       66h box
       67h circle
       68h clr
       69h default hatch style
       6Ah default line style
       6Bh delhcur
       6Ch delln / deltcur
       6Dh ellipse
       6Eh fill
       6Fh flood
       70h flood2
       71h init graphics
       72h init hcur
       73h init marker
       74h init tcur
       75h inqarc
       76h inqbknd
       77h inqclr
       78h inqerr
       79h inqgcur
       7Ah inqhcur
       7Bh inqmarker
       7Dh inqtcur
       7Eh inqtext
       7Fh lnabs
       80h lnrel
       81h markerabs
       82h markerrel
       83h moveabs
       84h movehcurabs
       85h movehcurrel
       86h moverel
       87h movetcurabs
       88h movetcurrel
       89h movefrom
       8Ah moveto
       8Bh pie
       8Ch polylnabs
       8Dh polylnrel
       8Eh ptabs
       8Fh ptrel
       91h setasp
       92h set color
       93h set font
       94h set hatch style
       95h set line style
       97h settext
       98h set text color
       99h btext
       9Ah setseg
       9Bh display
       9Ch setscreen
       9Eh close graphics
       9Fh ftinit
       A0h ftlocate
       A1h ftext
       A5h set viewport
       A6h set window
       A7h set world
       AAh ftcolor
       ACh initlp
       ADh inqasp
       AEh inqdev
       AFh inqdisplay
       B0h inqft
       B1h inqftcolor
       B2h inqinterlace
       B3h inqlpa
       B4h inqlpg
       B5h inqmode
       B6h inqscreen
       B7h inqversion
       B8h roam
       B9h scroll
       BAh setieee
       BBh set interlace
       BCh shift
       BDh start graphics
       BEh vpan
       CBh gwrite
       CCh gread
       CDh setxor
       CEh rbox
       CFh rcir
       D0h rlnabs
       D1h rlnrel
       D2h delbox
       D3h delcir
       D5h setseg2
       DCh worldoff
       DDh mapwtod
       DEh mapdtow
       DFh mapwton
       E0h mapntow
       E1h mapdton
       E2h mapntod
       E3h inqworld
       E4h inqviewport
       E5h set line width
       E6h lnjoint
       E7h set locator
       E8h read locator
       E9h setdev
       EBh setstext
       ECh setstclr
       EDh setstang
       EEh stext
       EFh inqstext
       F0h setdegree
       F1h inqstsize
       F2h polyfabs
       F3h polyfrel
       F4h inqdrange
       F5h inqstang
       F6h orglocator
       F7h inqlocator
       F8h inqarea
       F9h setipal
       FAh setborder
       FBh inqcrange
       FEh setclip
       FFh fcir
          100h setcrange
          101h setdrange
          102h setlattr
          103h polycabs
          104h polycrel
          108h memcom
          109h memexp
          10Ah memmov
          10Eh movefx
          10Fh movetx
          110h inqrgb
          111h save image
          112h restore image
          113h setapal
          114h setxpal
          118h inqtsize
          12Eh gprint
          130h setprn
          131h setpattr
          133h setbattr
          135h pexpand
          136h ptnorm
          137h pfnorm
          13Bh inqprn
          13Ch lopen
          13Dh lclose
          13Eh lappend
          13Fh lrecord
          140h lswitch
          142h inqfun
          15Dh lsetup
          15Eh lrest
          15Fh lsave
   additional parameters on stack

Return: ???
Program: Halo88 is a suite of graphics routines

Note:  according to Stuart Kemp, the code appears to make no provisions for
      chaining