71 = G

103 = g

128

64

32

16

8

4

2

1

128

64

32

16

6

4

2

1

199=G231=g

Figure 16-2.Double high and wide character

In order to define letters in groups of four, you’ll have to modify the definition process. Fortunately, the ASCII numbers that represent the four versions of each character have a consistent pattern. That pattern in shown in Table 16-1.

218