Sharp PC-1500A Instruction Manual page 120

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C.4 Printer Modes
A$
the printer is operating it may be in one of two modes; TEXT
ar GRAPH.
These modes
correspond rough ly to human typ ing versus human drawing, Since most commands \vork only
in on e mo de o r the o ther, it is important to select th e proper mode befo re issuing
i11st<uc t ions .
The TEXT mode is used for prin ti ng numbers and characters. The width of the printer's paper
is d ivided into columns, the number of wh ich is related to th e speci fied characte r size. Vertical
and horizontal t abb ing commands are provided to format text i n formation.
In the GRAPH m od e . a variety o f dive rse figu rH, charts. and tables may be creat ed. Comma nds
to draw both solid and dashed lines. using either a d irec t or relative coord in ate system arc
available . All drav.,.ings ut ili ze a normal X- Y coordinate scheme.
To spec ify TEXT mode. the sta tement :
TE XT
is su ff icien t. c ,ertai n
co n~mands
(discussed later) cause an automatic s,,.,itch to the TEXT mode.
Specify ing the GRAPH mode is equally simple . The statement:
GRAPH
will in it iate this mode. setting the pen t o the far left side of the paper.
C.5.
Listing Programs
The LLIST
command causes the c urrent progiram, or portions ot the program to be printed.
Because selective printing of p rogram sections is possible, the
LL IST c omman
d is extremely
helpful during the p rogram development process.
The form of the L U ST command is sim ilar to tine form of the UST command . Because LUST
is more versatile , there are subtle d ifferences. The
l LIST forms
arc as follo\•Js:
LUST
Prin ts all program lines cu rrently in the program memory .
LUST expression
- Prints o nly the program line .. ·.ihose line number is given by expression.
L LIST , expression
Prints all program lines up to, and i1 ,cluding, the li ne whose number is given by the
expression.
L LIST expres.sion,
- Prints p rogram lines begin ning with the line whose number is given by expression .
L LIST expression 1, expression2
Prints program lines begi nn ing with the- line whose number is given by expression 1 and
ending with t he lin e whose number is give1 ' by expression 2 . Thus, if the command is:
LUST
100. 150
then
all
lines be tween
100
and
150
Iii a ny) will be listed.
L LIST "label"
- Prints t he program line contain ing the g iven label .
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