Epson 4500 User Manual

Page 125

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background image

Graphics

Below is the BASIC program that prints the design shown on the
previous pages. Note that the data numbers in lines 80 through 140 are

the same numbers that are at the bottom of each section in the last

illustration. The WIDTH statement in line 10 is for IBM PC BASIC; the
WIDTH statement format may be different for your system.

10 WIDTH "LPT1:",255

20 LPRINT CHR$(27)"*"CHR$(39)CHR$(42)CHR$(0);
30 FOR x=1 To 126
40 READ N

50 LPRINT CHR$(N);

60 NEXT X

70 LPRINT
80 DATA 0,0,63,0,0,127,0,0,255,0,3,255,0,15,255,0,31,255

90

DATA

0,127,255,0,255,255,1,255,255,3,255,255,7,255,255,15,

255,255

100 DATA 31,255,254,31,255,252,3l,255,248,31,255,240,3l,255,

224,31,255,192

110 DATA 31,255,0,31,252,0,31,240,0,31,224,0,31,128,0,31,240,0

120

DATA 31,255,192,28,255,224,28,127,240,28,l5,248,30,0,252,

31,0,126

130 DATA 15,128,15,7,192,7,3,240,7,1,254,7,0,255,7,0,127,135
140 DATA 0,31,199,0,7,231,0,1,247,0,0,255,0,0,127,0,0,63

In this program, line 20 assigns the graphics option (24-pin

triple-density) with code 39. Code 42 sets the number of pin columns at
42. Lines 80 through 140 contain 126 bytes of data (42-pin columns x 3
bytes) for each pin column. Lines 30 through 60 print the design that

you see below:

A

4-18

Software and Graphics

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