The following BASIC program is a simple test you can run in hexadecimal
mode:
10 FOR I=0 TO 255
20 LPRINT CHR$(I);
30 NEXT I
40 LPRINT
50 END
If your system passes the codes directly to the printer without changing
them, you will get a printout like Figure 2-4.
100 01 0: to:, 04 05 06 07 06 09 OA
OB OC OD Ot OF
IU 1, 12 t> 14 15 16 17 16 19 1A.
Ifi 1C ID It 1F _....,..
“0 21 22 23 24 25 26 27 28 29 2A
LB 2C 2D 2E 2F !"#$I&' o*+,-./
3 i, 31 ;,i 33 34 35 3b 37 36 39 3A
36 3C 3D 3E 3F 01234567 89::1=>?
40 41 42 4j 44 45 4b 47 48 49 4A
48 4C 40 4E 4F @ARCDEFG HIJKLMNO
5IJ 51 31 53 54 55 5b 5' 5h 59 SA
5h 5i 5Lj 5E SF PORSTUVW XYZ[\]'-
<,U 61 bi o- 04 05 db d! b8 69 6A
66 6C 6U 6E OF abcdefg hijklmno
/u 1, TL 7: 74 75 'b 7' 76 7!1 /A
'Fr 'C '0 /E 7F pqrstuvw xyzc 1)'
>u 81 3: 5. ,,4 65 bb si 66 8~ SA
HH oC :60 8E 8F
"0 ii, 9~ 4.' 911 31 9b 9: "S 9" 9A
96 91; 9~1 9L 9F _......,
A !I A / A ; A.< A4 A5 Ab A7
At, AF AA A6 AC A@ AE AF
b0 KI 62 6: K4 85 Kb 87 86 6'1 BA
Bti bi BD BE E;F
Iii L I 1,: 2 2 IL 4 (1 'j i b 2 7 i 8 c 9 c A
I: L: c c I: D c E 2 F
0 u u I Cl L u 3 L'4 0 '> 0 b u 7 Da 09 UA
DB DC DO Dt DF
i-1, il ii 1.~ 14 E5 t6 t '
CS E3 EA EE EC tLi EE F.F
I!/ il t, Fi t 4 i z F? 17
l-b Fr FA Ft: FL FL1 FE FF
!lil ou
Figure 2-4. Sample hexadecimal dump
Most BASICS, however, are not quite that straightforward. For example, the
IBM-PC prints the following.
!I II II I 11 ‘- 0: 04 NJ: Ot 01 08 0~ UA
(It, 01: UU IOA DE
lik ,I, 1, (I I; 14 15 lb 17 lb 19
It IC IC' lE li
?il :I ic 2.5 14 Li', Lb 27 26 ;(I
LA LB LC 2b 2E ;‘F
!"#$%&' ()'f,-./
: IJ I Zi‘ :,i 54 3, 30 27 18 39 3A
3ti 3i 30 3E. SF 01234567 89: ;.:=a?
4 !I 4 I 4 L 4;1 44 45 40 47 48 49 4A
48 4L 40 4E 4F @ARCDEFG HIJKLMNO
5i.r 5 , 5: ‘1 54 5 5 5 b : ,' 53 5'4 5A
St, 5i SLI Sk 5F FORSTUVW XYi[\]
$,I, t 1 bC iif. 804 0: bb b' b8 611 bA
6B bL 611 6E 6F abcdefg hijklmno
w II i: '3 74 75 !o 7.' 76 79 -JA
/E 7C 70 iE 7F pqrstuvw xyz{I)’
61, 61 SC 52 Fj 4 ! 5 3 b rj’7 68 6~ 6A
SE. 'SC 80 8t 8F
4 Ii ii , I) ‘ 93 94 95 9b 9! 98 99 9A
96 9C 90 9E 5F .
PU Al A, A A4 A', Ab Ai Ab A'i AA
Ate AC AL! AE AF
80 ii1 6; 6: h4 Rti Bb 8' I38 635 &A
RK BC E>LI BE 8F ,....
(,I1 1.1 i,,, t..', 04 1:5 Cb 0,' 1.8 C9 CA
CR Cc, CD CE CF ,.,.....
0 u L1 II ‘ " ' 114 U 5 0 b tl /' Cl8 D'? IJA
OK Oi DI.1 DE UF
i/J t I tL EC 114 t-i tb EJ E8 E'3 EA
EB EC ED EE EF ,.......
F~ 0 F k < r- : i4 F5 F6 FI b8 F9 FA
FE: FC FD Ft FF
ou UC
Figun,2-5. Sample hexadecimal dump with IBM-PC
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