Star Micronics XB24-200 User Manual page 59

If your system passes the codes directly to the printer without changing them,
you will get a printout like Figure 5-5.
Most BASICS, however, are not quite that straightforward. For example, the
IBM-PC will give you a printout similar to Figure 5-6.
00 01 02 03 04 05 06 07 08 09 OA OF: OC
OD Ok Of
OF 10 -1 1,' 13 14 15 16 17 1E 19 It3 1L
IO 1E 1F
;'O 21 72 23 24 25 26
i;
28 29 ZA 78, ?C ZCI Zf 2F
30 31 3: 33 34 35 36 37 38 39 3A 36 31:
AD 3f 3F
no 4, 47 4: 44 45 46 47 48 4y 4A 48 4C 40 4E 4f
50 51 52 53 54 55 50 51 58 59 SA 56
5~ 5u 5E 5F
Ii0 61 62 63 64 65 66 67 68 69 6A 6H
6C 6D 6E 6F
70 71 72 73 is 75 76 77 78 79 7A 78
7C 70 7E 7F
SO 81 62 83 84 85 36 87 88 89 SA 88 8C 8D 8E 8F
90 91 92 93 94 95 Y6 97 98 99 9A YB 91: YD 9E 9F
A0 Al AZ A3 A4 A5 A6 A7 A8 A9 AA AR AC AC! AE AF
50 61 BZ 83 64 55 86 57 68 59 BA BH
BC BD BE BF
1:0 Cl CZ C3 C4 C5 C6 C7
C8 CY CA CK CC CD CE CF
DO 01 DZ D3 D4 05 00 D7
D8 DY DA DR DC DO DE Df
t0 El EZ E3 E4 ES E6 E7
E8 EY EA E5 EC ED EE EF
FO Fl F2 F3 F4 F5 F6 F7
F8 f9 FA FB FC FD FE FF
00 OA
................
...... .........
....... ........
................
................
Figurer !W. Sample hexadecimal dump with IBM-PC.
When the IBM-PC BASIC interpreter sends hex code OD (carriage return)
it adds an extra hex OA (line feed). Hex code 1 A (end-of-file) also gets special
treatment: the interpreter does not send it at all. This can cause problems with
graphics or download character data. However, you can solve this problem
by changing line 30 in the preceding program and adding the coding shown
below.
Coding for IBM-PC with monochrome display:
30 GOSUB 100
100 X=INP(&H3BD) :IF X(128 THEN 100
110 OUT &H3BC,I :OUT &H3BE,5 :OUT &H3BE,4
120 RETURN
Coding for IBM-PC with color adapter:
30 GOSUB 100
100 X=INP(&H379) :IF X<128 THEN 100
110 OUT &H378,1 :OUT &H37A,5 :OUT &H37A,4
120 RETURN
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