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I
Definedraft downloadcharacter(s) Both
<ESC> & <NUb <cl> <C2> C*
cdl> ...
~n>
IBh
3Dh OOh
<cl>
<C2> <?0
‘4> ...
ain>
I
27 61 0 <d>
<C2> <m’
4> ... cdn> I
Thecommandaboveenablesthedefinitionof “soft’’characterstobe downloaded.
This commandis only valid if “DOWNLOAD”has been selectedin the RAM
USAGEmenuoftheMemorySwitch(seeChapter3fordetails),andthedraftmode
hasbeenselectedbeforethiscommandisexecuted.
Thefollowingrulesareobsexved.<cl> andec2>arebinaryvalueswhichdetermine
the characterrangewhichwill be replacedby downloadeddata.For instance,if
<cZ>=20handcc2>.30h, allcharactersfrom20hthrough30hwillbe overwriuen
bythedownloadeddata.Ifadownloadedcharacterisstoredinthearea80hthrough
9Fh, it can only be printedin the characterset #2 mode. It is possibleto store
downloadedcharactersin the part of rhe characterset reserved for
IBM block
graphics(BOhrhroughDFh,F4handF5h),butthesecharacterscanonlybeprinted
whenthestandardcharactersethasbeenselected.
Eachcharacterisdefiiedbyanattributebyte(cn>)and 11databytes(dl> ...<A>).
Theattributebyte,en>,indicateswhetherthecharacterisanaseender(notusingthe
lowestof thenineverticaldots)or a descender(notusingthehighestdot).It also
indicatestheamountofwhitespacetotheleftofthechamcter(Oto 7 dots),andthe
widthofthecharactercell,includingthisspace(4to 15dots).Theleftspaceandcell
widthattributesareusedonlyin proportionalspacing.
Eachdatabyteindicateseightverticaldots,withtheMSBbeingthetopdotandthe
LSB thebottomdot.Thesecorrespondto pins 1 to 8 or 2 to 9 of theprinthead,
deWndingon whetherthecharacterisan ascenderor descender.
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