Star Micronics LC24-10 user manual Return

If your system passes the codes directly to the printer without changing them, you will get a printout like Figure 2-3.

00	01	02	03	04	05	06	07	08	09	OA	08	OC	OD	OE	OF
10	11	12	13	14	15	16	17	18	19	1A	18	1C	1D	1E	1F
20	21	22	23	24	25	26	27	28	29	2A	25	2C	2D	2E	ZF
30	31	32	33	34	35	36	37	38	39	3A	38	3C	30	3E	3F
40	41	42	43	44	45	46	47	48	49	4A	46	4C	40	4E	4F
50	51	52	53	54	55	56	57	58	59	5A	58	5C	SD	5E	5F
60	61	62	63	64	b5	66	67	68	69	6A	66	6C	60	6E	6F
70	71	72	73	74	75	76	77	78	79	7A	78	7C	70	7E	7F
80	81	82	83	84	85	86	87	88	89	8A	86	8C	8D	8E	8F
90	91	92	93	94	95	96	97	98	99	9A	96	9C	9D	9E	9F
A0	Al	A2	A3	A4	A5 A6		A7	A8	A9	AA	AB	AC	AD	AE	AF
BO	81	62	63	84	R5	66	87	BE	69	BA	88	BC	BD	BE	BF
CO	Cl	C2	C3	C4	C5	C6	C7	C8	C9	CA	CB	CC CD CE CF
ii	Dl	02	D3 D4		D5	06	07	D8	D9	DA	D8	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	FB	FC	FD	FE	FF
OD	OA

I

. . . . . . . . .

‘p#&; ijx;;;:;

01234567	89:;<=>?
@ABCDEFG	HIJKLMNO
PQRSTUVW	XYZ[\I--
‘abcdefg	hijklmno
pqrstuvw	xyz{;)-o

. .	. .		.	.
.	. .		. .	..r
______..
.	. .		.
	.
_		.	.	. .
. . . . . . . .		.	.	. .

Figure 2-3. Sample hexadecimal dump

Most BASICS, however, are not quite that straightforward. For example,

the IBM-PC prints the following. -

00	01	02	03	04	05	06	07	08	09	OA	08	OC	OD	OA	OE	........			.
OF	10	11	12	13	14	15	16	17	18	19	18	1C	1D	1E	1F	........
20	21	22	23	24	25	26	27	28	29	2A	2B	2C	20	2E	2F	! “UP%&		o*+.--/
30	31	32	33	34	35	36	37	38	39	3A	38	3C	30	3E	3F	01234567		89:I<=>?
40	41	42	43	44	45	46	47	48	49	4A	46	4C	40	4E	4F	PABCDEFG		HI	JKLMNO
50	51	52	53	54	55	56	57	58	59	5A	58	5C	5D	5E	5F	~QRSTUV~		xyz[\l--
60	61	62	63	64	65	66	67	68	69	6A	68	6C	60	6E	6F	‘abcdefg		hijklmno
70	71	72	73	74	75	76	77	78	79	7A	78	7C	7D	7E	7F	pqrstuvw		XYZCll-0
80	81	82	83	84	85	86	87	88	89	8A	8B	8C	8D	8E	8F	.		. .	.
90	91	92	93	94	95	96	97	98	99	9A	96	9C	9D	9E	9F	.			. .
A0	Al	A2 A3		A4	A5	A6 A7		A8	A9	AA	AB	AC	AD	AE	AF	.	.
80	Bl	82	83	84 B5 86 87				B8	69	BA	BB	BC	BD	BE	BF	.		.
CO	Cl	C2 C3 C4 C5 C6 C7						C8	C9	CA	CB	CC	CD	CE	CF
DO	Dl	02	D3 D4 D5 D6 D7					D8	D9	DA	08	DC	DD	DE	DF	. .	.	.	.
EO	El	E2	E3 E4 E5 E6 E7					EB	E9	EA	Ei3	EC	ED	EE	EF
FO	Fl	F2	F3 F4		F5	F6	F7	F8	F9	FA	FB	FC	FD	FE	FF
OD	OA

figure 2-4. Sample hexadecimal dump with IBM-PC

When the IBM-PC BASIC interpreter sends hex code OD (carriage re- turn) it adds an extra hex OA (line feed). Hex code 1A (end-of-file) also gets

special treatment: the interpreter does not send it at all. This can cause problems in programs that generate graphics or download character data, but there is a solution. Try changing line 20 in the preceding program and adding the coding shown below.

Coding for IBM-PC with monochrome display:

20GOSUB 100

100 O=INP(&H3BD) :IF 0<128 THEN 100

110 OUT tH3BC,I :OUT &H3BE,5 :OUT &H3BE,4

120 RETURN

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