<s>
Merlin	B-Device
is	O
a	O
MOS	B-General_Concept
Technology	I-General_Concept
6502	I-General_Concept
macro	B-Language
assembler	I-Language
developed	O
by	O
mathematics	O
professor	O
Glen	O
Bredon	O
for	O
the	O
Apple	B-Device
II	I-Device
under	O
DOS	B-Operating_System
3.3	I-Operating_System
.	O
</s>
<s>
Merlin	B-Device
continued	O
to	O
be	O
updated	O
as	O
successors	O
to	O
the	O
6502	B-General_Concept
became	O
available	O
:	O
first	O
the	O
65C02	B-General_Concept
and	O
later	O
the	O
65816	B-General_Concept
and	I-General_Concept
65802	I-General_Concept
.	O
</s>
<s>
A	O
ProDOS	B-Operating_System
version	O
was	O
made	O
available	O
as	O
Merlin	B-Device
Pro	O
(	O
this	O
package	O
also	O
included	O
the	O
DOS	B-Operating_System
3.3	I-Operating_System
version	O
)	O
.	O
</s>
<s>
The	O
8-bit	O
version	O
of	O
Merlin	B-Device
was	O
later	O
renamed	O
Merlin	B-Device
8	O
,	O
and	O
a	O
16-bit	O
version	O
,	O
dubbed	O
Merlin	B-Device
16	O
,	O
was	O
released	O
for	O
the	O
Apple	B-Device
IIGS	I-Device
.	O
</s>
<s>
Versions	O
for	O
the	O
Commodore	O
64	O
and	O
Commodore	B-Device
128	I-Device
were	O
released	O
as	O
Merlin	B-Device
64	O
and	O
Merlin	B-Device
128	O
respectively	O
.	O
</s>
<s>
Merlin	B-Device
includes	O
an	O
integrated	O
source	O
code	O
editor	O
(	O
initially	O
a	O
line	B-Application
editor	I-Application
;	O
later	O
versions	O
include	O
a	O
full-screen	O
editor	O
)	O
and	O
also	O
a	O
disassembler	O
,	O
called	O
Sourceror	O
.	O
</s>
<s>
A	O
related	O
utility	O
,	O
Sourceror.FP	O
,	O
can	O
generate	O
a	O
commented	O
disassembly	O
of	O
the	O
Apple	B-Device
II	I-Device
's	O
Applesoft	B-Language
BASIC	I-Language
,	O
the	O
source	O
code	O
for	O
which	O
had	O
never	O
been	O
released	O
by	O
Apple	O
,	O
from	O
the	O
customer	O
's	O
own	O
ROM	O
.	O
</s>
<s>
called	O
Merlin	B-Device
64	O
"	O
an	O
excellent	O
little	O
assembler	O
with	O
many	O
value	O
added	O
features	O
.	O
</s>
<s>
On	O
August	O
24	O
,	O
2000	O
,	O
what	O
would	O
have	O
been	O
the	O
author	O
's	O
68th	O
birthday	O
,	O
his	O
widow	O
released	O
all	O
of	O
his	O
Apple	B-Device
II	I-Device
software	O
and	O
source	O
code	O
(	O
e.g.	O
</s>
<s>
DOS.MASTER	O
)	O
as	O
public	B-Application
domain	I-Application
software	I-Application
.	O
</s>
<s>
In	O
January	O
,	O
2015	O
a	O
Windows	O
edition	O
of	O
Merlin	B-Device
titled	O
"	O
Merlin	B-Device
32	O
"	O
was	O
released	O
by	O
Brutal	O
Deluxe	O
.	O
</s>
