
The following BASIC program is a simple test you can run in hexade- cimal mode:
10 FOR
20LPRINT CHR$(I);
30NEXT I
40LPRINT
50END
If your system passes the codes directly to the printer without changing them, you will get a printout like Figure
Cm 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | cm | OR | cc | CID OE | OF | ||||
10 | 11 | 12 | 11: 14 | 15 | 16 | 17 | 18 19 1A 1B 1C 1D iE 1F | ... . .. . | .. ... .. .. | ||||||||
20 | 21 | 22 | 23 | 24 | 25 | 76 | 27 | 28 | 29 | 2A | ZB | 2C | 2D | 2E | 2F | !"#Six&‘()t+, | |
30 | 31 | 32 | 33 | 34 | 35 | 36 | 7.7 | 38 | 39 | 3A | 3H | 3C | 3D | 3E | 3F | 0123456789:;<=>? | |
40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 40 | 4B | 4C | 4D | 4E | 4F | @ABCDEFGHIJKLMNO | |
JO | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 5A | 58 | 5C | 5D | 5E | SF | PQRSTUVWXYZC\l"- | |
50 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 59 | 69 | 6A | 68 | 6C | 6D | 6E | 6F | 'abcdefghijklmno | |
70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 79 | 79 | 7A | 7B | 7C | 7D | 7E | 7F | ||
80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 8A | 88 | BC | SD | 8E | SF | .. ... .. | ...* |
90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 9cI 9B | 9C | 9D | 9E | 9F | . ... .. . | .. . ... ... | |
A0 | Al | A2 | A3 | A4 | A5 | k6 | A7 | A8 | A9 | ACI Al3 AC | &D | AE | &F | ||||
BO | El | B2 | 83 R4 B5 Bb 87 | 88 | B9 | BA | BB | BC ED BE BF | . .. .. . . | ... ... ... | |||||||
co | Cl | c2 | c3 | c4 | c'j Cb | c7 | C8 | C9 | CA | CB CC CD CE CF | ... ... . | ..... ... . | |||||
DO | Dl | D2 | D3 | D4 | D5 | Db | D7 | D8 | D9 | DA | DB | DC | DD | DE | DF | . .. .. .. | ... ... ... |
EO | El | E2 | E3 E4 | ES | E6 | E7 | E8 | E9 | EA EB EC ED EE | EF | .. . .. .. | . ... ... .. | |||||
FO | Fl | F2 | F3 | F4 | F5 | F6 | F7 | F8 | F9 | FA | FE | FC | FD | FE | FF | .. ... . . | .. .... . .. |
OD | OA |
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trgure |
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Most BASICS, however, are not quite that straightforward. For example, the
00 01 02 03 04 | 05 | 06 07 | 08 | 09 | OA OB OC OD OP OE | .. ... .. ... .. .. .. | ||||||||||
OF 10 11 12 13 14 15 lb | 17 18 19 18 1C 1D 1E 1F | .. . ... ... ... .. .. | ||||||||||||||
20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 2A | 2B | 2C | 2D | 2E | 2F | |
30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 3A | 38 | 3C | JD | 3E | 3F | 0123456789:;<=>? |
40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 4FI 4B | 4C | 4D | 4E | 4F | eABCDEFGHIJKLMN0 | |
50 | 51 | 52 | 5'5 54 | 55 | 56 | 57 | 58 | 59 | 5A | SH | SC | SD | SE | 5F | PLlRSTUVWXYZC\l"- | |
60 | 61 | 62 | 63 | 64 | 65 | 65 | 67 | 68 | 69 | 6FI 6B | 6C | 6D | 6E | 6F | 'abcdefghijklmna | |
70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 7A | 78 | 7C | 7D | 7E | 7F | pqrstuvwxyzCI>'. |
80 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 80 | 8B | SC | SD | SE | SF | . . .. ... ... ... ... | |
90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 9A | 98 | 9C | 9D | 9E | 9F | .. . ... ... .. ... .. |
A0 | Al A2 A3 64 A5 A6 A7 | A8 | A9 | AFI AB | AC | AD | 4E | CIF | ... . .. ... ... ... . | |||||||
BO 81 B2 B3 84 B5 B6 B7 | B8 | B9 | BPI BB | BC | BD | BE | BF | .. .. . .... . ... ... | ||||||||
CO Cl C2 C3 C4 | C5 C6 C7 | C8 | C9 | CA CB CC CD CE CF | ... .. . ... ... ... . | |||||||||||
DO Dl D2 D3 D4 DS D6 D7 | D8 | D9 | DA DB DC DD DE DF | .. .. . .. .. . .. . ... | ||||||||||||
EO El E2 E3 E4 | ES E6 E7 | ES | E9 | EA EB EC ED EE EF | ... .. . .. ... ... .. | |||||||||||
FO Fl F2 F3 F4 | F5 F6 F7 | F8 | F9 | FA FB FC FD FE FF | .. . .. ... .. ... ... | |||||||||||
QD | OA |
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Figure 2-S. Sample hexadecimal dump with IBM-PC
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