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DOWNLOAD CHARACTER COMMANDS
M A
D
H
~ “ C n
27 38 0 d IB 26 W n]
s
?
d M m d d m m m
m3 ... mll
d ... m d ... m
Definesoneor morenewdraftcharactersand stem theminRAM
for lateruse. DIPswitch1-2mustbeOFF;otherwiseRAMis used
as an inputbuffer,not for downloadingcharacters,and this com-
mandis ignored.Draftmodemustbeselectedbefotethiscommand
is executed.
nl is the charactercodeof the firstcharacterdefinedand ti is the
charactercodeof the lastcharacterdefined.nl mustbe equalto or
lessthanti. Useofcharactercodes32(space)and127(deletecode)
shouldbe avoidedif possible.
Eachcharacters definedbyanattributebyte(m(l)and11databytes
(ml, m2, ..... roll).
Themostsignificantbit of the attributebyteis 1if the characteris
an ascender(positionedentirelyabovethe baseline)or Oif it is a
descender(descendingbelowthebaseline).The attributebyte also
indicatesthe amountof whitespaceto theleft ofthecharacter(Oto
7 dots,specifiedbybits4 to 6), andthewidthof the charactercell,
includingthis space(4 to 15dots,specifiedby bitsOto 3).The left
spaceandcellwidthattributesareusedonlyinproportionalspacing.
Eachdatabyteindicateseightverticaldots,withtheMSBbeingthe
top dot andtheLSB thebottomdot.Thesecorrespondto pins 1to
8 or 2 to 9 of theprinthead,dependingon whetherthe characteris
an ascenderor descender.
For furtherdetails,pleasereferto the Chapter5.
61