<s>
AmigaBASIC	B-Language
is	O
an	O
interpreted	B-Application
BASIC	O
programming	O
language	O
implementation	O
for	O
the	O
Amiga	B-Device
,	O
designed	O
and	O
written	O
by	O
Microsoft	O
.	O
</s>
<s>
AmigaBASIC	B-Language
shipped	O
with	O
AmigaOS	B-Application
versions	O
1.1	O
to	O
1.3	O
.	O
</s>
<s>
It	O
succeeded	O
MetaComCo	B-Device
's	O
ABasiC	O
,	O
which	O
was	O
included	O
in	O
AmigaOS	B-Application
1.0	O
and	O
1.1	O
,	O
and	O
was	O
superseded	O
by	O
ARexx	B-Operating_System
,	O
a	O
REXX-style	O
scripting	B-Language
language	I-Language
,	O
from	O
AmigaOS	B-Application
version	O
2.0	O
onwards	O
.	O
</s>
<s>
AmigaBASIC	B-Language
provided	O
not	O
only	O
the	O
common	O
BASIC	O
language	O
,	O
but	O
also	O
attempted	O
to	O
provide	O
an	O
easy-to-use	O
API	B-General_Concept
for	O
the	O
Amiga	B-Device
's	O
unique	O
graphics	O
and	O
sound	O
capabilities	O
.	O
</s>
<s>
OBJECT	O
commands	O
,	O
for	O
example	O
,	O
made	O
it	O
easy	O
to	O
create	O
moving	O
objects	O
–	O
sprites	O
and	O
bobs	B-Device
that	O
could	O
be	O
drawn	O
with	O
an	O
external	O
drawing	O
program	O
,	O
Object	O
editor	O
,	O
that	O
was	O
supplied	O
with	O
AmigaBASIC	B-Language
.	O
</s>
<s>
An	O
unusual	O
feature	O
of	O
the	O
language	O
is	O
that	O
it	O
theoretically	O
allowed	O
the	O
calling	O
of	O
handwritten	O
assembly	B-Language
language	I-Language
subprograms	O
;	O
however	O
,	O
this	O
feature	O
never	O
worked	O
because	O
of	O
a	O
bug	O
that	O
failed	O
to	O
align	O
the	O
assembly	B-Language
language	I-Language
instructions	O
correctly	O
on	O
a	O
word	O
boundary	O
,	O
as	O
required	O
by	O
the	O
Amiga	B-Device
's	O
native	O
MC68000	B-Device
processor	O
.	O
</s>
<s>
Compute	O
!,	O
a	O
popular	O
computer	O
magazine	O
published	O
while	O
AmigaBASIC	B-Language
was	O
still	O
being	O
shipped	O
,	O
included	O
many	O
AmigaBASIC	B-Language
type-in	O
programs	O
in	O
their	O
articles	O
.	O
</s>
<s>
These	O
were	O
typically	O
implementations	O
of	O
simple	O
programs	O
such	O
as	O
rudimentary	O
games	O
,	O
system	O
and	O
file	O
utilities	O
and	O
desk	B-Application
accessories	I-Application
such	O
as	O
analog	O
clocks	O
and	O
address	O
books	O
.	O
</s>
<s>
AmigaBASIC	B-Language
itself	O
was	O
rendered	O
obsolete	O
because	O
of	O
incompatibilities	O
with	O
AmigaOS	B-Application
2.0	O
and	O
the	O
hardware	O
successors	O
to	O
the	O
Motorola	B-Device
68000	I-Device
CPU	O
.	O
</s>
<s>
However	O
,	O
there	O
were	O
a	O
number	O
of	O
third-party	O
compiled	O
BASIC	O
languages	O
released	O
for	O
the	O
Amiga	B-Device
that	O
could	O
compile	O
AmigaBASIC	B-Language
programs	O
with	O
minimal	O
changes	O
,	O
like	O
A/C	O
BASIC	O
or	O
Cursor	O
(	O
see	O
below	O
)	O
.	O
</s>
<s>
Some	O
of	O
these	O
compiled	O
BASICs	O
continued	O
to	O
work	O
with	O
AmigaOS	B-Application
2.0	O
,	O
and	O
as	O
they	O
were	O
compiled	O
rather	O
than	O
interpreted	B-Application
,	O
they	O
generally	O
ran	O
much	O
faster	O
than	O
the	O
original	O
.	O
</s>
<s>
Although	O
AmigaBASIC	B-Language
was	O
superseded	O
by	O
ARexx	B-Operating_System
in	O
AmigaOS	B-Application
2.0	O
,	O
the	O
two	O
languages	O
had	O
very	O
different	O
functions	O
and	O
capabilities	O
.	O
</s>
<s>
Hobbyist	O
programmers	O
had	O
changed	O
by	O
the	O
time	O
of	O
AmigaOS	B-Application
2.0	O
'	O
s	O
release	O
and	O
were	O
more	O
likely	O
to	O
be	O
interested	O
in	O
scripting	B-Language
existing	O
third	O
party	O
applications	O
than	O
in	O
writing	O
new	O
programs	O
entirely	O
from	O
scratch	O
.	O
</s>
<s>
ARexx	B-Operating_System
was	O
seen	O
as	O
better	O
fitting	O
their	O
needs	O
than	O
BASIC	O
.	O
</s>
<s>
Along	O
with	O
Microsoft	O
's	O
very	O
similar	O
BASIC	O
for	O
the	O
Macintosh	B-Device
,	O
AmigaBASIC	B-Language
was	O
the	O
first	O
BASIC	B-Language
interpreter	I-Language
from	O
Microsoft	O
to	O
not	O
require	O
line	B-Application
numbers	I-Application
,	O
adopting	O
instead	O
a	O
top-down	O
approach	O
to	O
executing	O
the	O
lines	O
of	O
code	O
,	O
and	O
labels	O
to	O
indicate	O
the	O
GOTO	O
instruction	O
where	O
to	O
jump	O
.	O
</s>
<s>
However	O
programs	O
that	O
contained	O
line	B-Application
numbers	I-Application
were	O
able	O
to	O
run	O
;	O
the	O
line	B-Application
numbers	I-Application
were	O
simply	O
treated	O
as	O
labels	O
for	O
the	O
purpose	O
of	O
flow	O
control	O
.	O
</s>
<s>
It	O
was	O
also	O
the	O
first	O
Microsoft	O
interpreted	B-Application
language	I-Application
capable	O
of	O
calling	O
OS	O
functions	O
and	O
dynamic	O
libraries	O
through	O
the	O
command	O
LIBRARY	O
.	O
</s>
<s>
For	O
example	O
:	O
LIBRARY	O
Graphics.library	O
command	O
invokes	O
the	O
standard	O
Amiga	B-Device
Graphics.library	O
from	O
which	O
to	O
call	O
functions	O
.	O
</s>
<s>
The	O
Amiga	B-Device
will	O
then	O
say	O
"	O
Hello	O
world	O
"	O
using	O
speech	B-Application
synthesis	I-Application
in	O
addition	O
to	O
displaying	O
it	O
on	O
screen	O
.	O
</s>
