Apple II Ascii Character Codes Decimal, Nul, Soh, Etx, Eot, Enq, Ack, Bel, Dle, DC1, DC2, DC3

5.Programs which use the MAT functions available in some BASICs will have to be re-written using FOR...NEXT loops to perform the appropriate operations.

6.A PRINT statement with no arguments will not cause a paper feed on the printer. To generate a paper feed (blank line), use PRINT "space"

E ASCII CHARACTER CODES

DECIMAL	CHAR.	DECIMAL	CHAR.	DECIMAL	CHAR.
-------	----	-------	----	-------	----
000	NUL	043	+	086	V
001	SOH	044	,	087	W
002	STX	045	-	088	X
003	ETX	046	.	089	Y
004	EOT	047	/	090	Z
005	ENQ	048	0	091	[
006	ACK	049	1.	092	/
007	BEL	050	2	093	]
008	BS	051	3	094	^
009	HT	052	4	095	_
010	LF	053	5	096	`
011	VT	054	6	097	a
012	FF	055	7	098	b
013	CR	056	8	099	c
014	SO	057	9	100	d
015	SI	058	:	101	e
016	DLE	059	;	102	f
017	DC1	060	<	103	g
018	DC2	061	=	104	h
019	DC3	062	>	105	i
020	DC4	063	?	106	j
021	NAK	064	@	107	k
022	SYN	065	A	108	l
023	ETB	066	B	109	m
024	CAN	067	C	110	n
025	EM	068	D	111	o
026	SUB	069	E	112	p
027	ESCAPE	070	F	113	q
028	FS	071	G	114	r
029	GS	072	H	115	s
030	RS	073	I	116	t
031	US	074	J	117	u
032	SPACE	075	K	118	v
033	!	076	L	119	w
034	"	077	M	120	x
035	#	078	N	121	y
036	$	079	O	122	z
037	%	080	P	123	{
038	&	081	Q	124
039	'	082	R	125	}
040	(	083	S	126	~
041	)	084	T	127	DEL
042	*	085	U
LF=Line Feed	FF=Form Feed		CR=Carriage Return		DEL=Rubout on TTY
F ASSEMBLY	LANGUAGE SUBROUTINES

AIM 65 BASIC allows a user to link to assembly language subroutines, via the USR(W) function. This function allows one parameter to be passed between BASIC and a subroutine.

The first step is to allocate sufficient memory for the subroutine. AIM 65 BASIC always uses all RAM memory locations, beginning at decimal location 530 (hex location 212), unless limited by the user. You can limit BASIC's memory useage by answering the prompt MEMORY SIZE? (see Subject 100) with some number less than 4096, assuming a 4K system. This will leave sufficient space for the subroutine as the top of RAM.

For example, if your response to MEMORY SIZE? is "2048", 1518 bytes at the top of RAM will be free for assembly language subroutines.