Table of Contents
Advertisement
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
Definesone or more new draftcharactersand stem them in RAM
for lateruse. DIP switch 1-2mustbe OFF;otherwiseRAM is used
as an input buffer, not for downloadingcharacters,and this com-
mandis ignored.Draftmodemustbe selectedbefotethiscommand
is executed.
nl is the charactercodeof the first characterdefinedand ti is the
charactercodeof the last characterdefined.nl mustbe equalto or
lessthanti. Useofcharactercodes32(space)and 127(deletecode)
shouldbe avoidedif possible.
Eachcharacters definedby anattributebyte(m(l)and 11databytes
(ml, m2, ..... roll).
Themost significantbit of the attributebyte is 1if the characteris
an ascender(positionedentirelyabovethe baseline)or Oif it is a
descender(descendingbelowthe baseline).The attributebyte also
indicatesthe amountof whitespaceto theleft of the character(Oto
7 dots, specifiedby bits 4 to 6), and the widthof the charactercell,
includingthis space(4 to 15dots,specifiedby bits Oto 3). The left
spaceandcellwidthattributesareusedonlyinproportional s pacing.
Eachdatabyteindicateseightverticaldots,withtheMSBbeingthe
top dot and the LSB the bottomdot.These correspondto pins 1 to
8 or 2 to 9 of theprint head,dependingon whetherthe characteris
an ascenderor descender.
For furtherdetails,pleaserefer to the Chapter5.
61
Advertisement
Table of Contents
