Apple IIe - Page 6

Statement 73.
Subroutines
&
GOSUB
Statements
73
.
ON
, GOSUB
Statements
75.
Applesoft
BASIC
Functions
75
. Stri
ng
Concatenation
76.
ASCII
77.
CHR$
& ASC
Functions
77
.
PEEK
&
POKE
78
.
Stopping
Program
Execution
79
.
Control-C
79. END
79
.
STOP 80.
RESET
80.
4.
APPLE
BASIC
REFERENCE
GUIDE
Introduction
81
.
ABS
82
.
AND
82.
ASC
84.
ATN 84.
AUTO
85
. CALL
86. CHR$ 87. CLEAR 88. CLR 88.
COLOR
89.
CON
90.
CONT
91.
COS
92.
DATA
92.
DEF
FN
93
.
DEL
94
.
DIM
95
DRAW
97
.
DSP
98.
END 99.
EXP
100. FLASH 100. FOR
...
NEXT
101.
FRE
103.
GET
104.
GOSUB, RETURN 105.
GOTO
106.
GR
107.
HCOLOR
107.
HGR
108.
HGR2
109.
HIMEM
110.
HLIN
111.
HOME
112.
HPLOT
112. HTAB
113.
IF
... THEN114.
IN#115.
INT
116. INVERSE116.
INPUT117.
LEFT$
118.
LEN
119.
LET
120.
LIST
120.
LOAD
121
.
LOG
122.
LOMEM
123.
MAN124.
MID$124.
NEW125.
NORMAL
126.
NOT126
.
NO
TRACE
127.
ON
128.
ON
ERR
GOTO
129.
OR
131
.
PDL
133.
PEEK
133.
PLOT
134.
POKE
135.
POP
136.
POS
138.
PRINT
139. READ
140.
RECALL
141. REM 144.
RESTORE
144.
RESUME
145
.
RETURN
146. RIGHT$
146.
RND
147.
ROT
149.
RUN
150.
SAVE
150.
SCALE
151
.
SCRN
152.
SGN
154.
SHLOAD
155
.
SIN
155.
SPC
156.
SPEED
156.
SQR.
157.
STOP
157.
STORE
158.
STR$
158. TAB 159.
TAN
161
.
TEXT
161.
TRACE
161
.
USR
162. VAL 163.
VLIN
163
. VTAB 164.
WAIT
165.
XDRAW
166.
5.
CASSETTE
&
DISK
STORAGE
WITH
THE
APPLE
lie
Introduction
169. Cassette
Installation
&
Operation
169.
Sav
i
ng
and
Loading
a
Program
on
Cassette 170.
Storing
and
Loading
Data
on
Cassette
171
.
Apple
lie
Disk Storage
171
. Types
of
Disks
171
.
Hard
Disks 171.
Floppy
Diskettes 173. Tracks and Sectors 174.
Hard
and
Soft
Sectors 176.
Si
ngle
and
Double
Sided
Diskettes 178.
Single,
Double
,
and
Quad
Density
Diskettes 178.
Diskette
Write
Protection
178.
Diskette
Handling
Rules
179.
Insert
i
ng
and
Removing
a
Diskette
180.
Disk
Operating
System 181. Disk
II
System 181.
Installing
the
Disk II
System 181.
Booting
DOS
185.
Auto
Start
Boot
185.
Booting
from
Integer
or
Applesoft
BASIC
186.
Booting
from
the
Mon
i
tor
186. Restoring
DOS
187.
Using
13-Sector Diskettes
with
the
lie
187.
Prompts 180.
Error Message
Format
DOS
Commands
189. Filenames
190.
Drive
Specification
190. Slot
Specification
191
.
Volume
Specifi-
cation
192.
CATALOG
194. Track/ Sector List 196.
INIT
197.
Master
and
Slave
Diskettes 199.
LOAD
202.
SAVE
202.
DELETE
203
.
RENAME
203.
LOCK
204. VERIFY 204.
MON
and
NOMON
205. MAXFILES
207
.
EXEC
208.
Creating
an
EXEC
File
209.
BSAVE
210
.
BLOAD
210
.
BRUN
211. Sequential
and
Random
File Access 211.
Opening
Sequen-
tial
Files
214
.
Writing
to
Sequential Files
214
. Reading Sequential Files
216.
Closing
a Sequential File
APPEND
218
.
POSITION
219.
Storing
Data
in
Disk Files
221.
Opening
and
Closing a
Random
Access File
223.
Reading
and
Wr
i
ting
to
Ra
ndom
Files
223
. Byte
Parameter
224.
6.
APPLE
lie
GRAPHICS
Low
Resolution
Graphics
225
.
Commands
225
.
Uses
of
Low
Resolu-
tion
Graphics
228
. Charts 228.
Writing
a
Game
Program
229.
High
Resolution
Graphics
232
.
Commands
232
.
Shape
Table
235.
Shape
81
169
225