<s>
Open	B-Application
Watcom	I-Application
Assembler	I-Application
or	O
WASM	B-Application
is	O
an	O
x86	B-Language
assembler	I-Language
produced	O
by	O
Watcom	O
,	O
based	O
on	O
the	O
Watcom	O
Assembler	B-Language
found	O
in	O
Watcom	B-Application
C/C	I-Application
++	I-Application
compiler	I-Application
and	O
Watcom	O
FORTRAN	O
77	O
.	O
</s>
<s>
Further	O
development	O
is	O
being	O
done	O
on	O
the	O
32	O
-	O
and	O
64-bit	O
JWASM	B-Application
project	O
,	O
which	O
more	O
closely	O
matches	O
the	O
syntax	O
of	O
Microsoft	B-Application
's	I-Application
assembler	I-Application
.	O
</s>
<s>
There	O
are	O
experimental	O
assemblers	B-Language
for	O
PowerPC	B-Architecture
,	O
Alpha	B-Device
AXP	I-Device
,	O
and	O
MIPS	B-Device
.	O
</s>
<s>
Supports	O
Intel	O
x86	B-Language
(	O
Pentium	O
MMX	B-Architecture
,	O
Pentium	O
III-4	O
,	O
3DNow	O
!,	O
SSE	O
and	O
SSE2	O
)	O
instruction	O
sets	O
.	O
</s>
<s>
Supports	O
Microsoft	B-Application
macro	I-Application
assembler	I-Application
(	O
MASM	B-Application
)	O
5	O
and	O
6	O
syntax	O
(	O
incomplete	O
)	O
.	O
</s>
<s>
The	O
assembler	B-Language
does	O
not	O
have	O
listing	O
facilities	O
;	O
instead	O
the	O
use	O
of	O
wdis	O
for	O
generating	O
listings	O
is	O
recommended	O
.	O
</s>
<s>
It	O
supports	O
16-bit	O
and	O
32-bit	O
x86	B-Language
instruction	O
set	O
including	O
MMX	B-Architecture
,	O
3DNow	O
!,	O
SSE	O
,	O
SSE2	O
,	O
and	O
SSE3	O
.	O
</s>
<s>
Support	O
for	O
PowerPC	B-Architecture
,	O
Alpha	B-Device
AXP	I-Device
,	O
MIPS	B-Device
,	O
and	O
SPARC	B-Architecture
V8	I-Architecture
instruction	O
sets	O
is	O
also	O
built	O
in	O
.	O
</s>
<s>
JWasm	B-Application
is	O
a	O
fork	O
of	O
Wasm	B-Application
originated	O
by	O
Japheth	O
with	O
following	O
features	O
:	O
</s>
<s>
Native	O
support	O
for	O
output	O
formats	O
Intel	O
OMF	O
(	O
16/32	O
-bit	O
)	O
,	O
MS	O
Coff	O
(	O
32-bit	O
and	O
64-bit	O
)	O
,	O
Elf	O
(	O
32-bit	O
and	O
64-bit	O
)	O
,	O
Bin	O
and	O
DOS	B-Device
MZ	O
.	O
</s>
<s>
Precompiled	O
JWasm	B-Application
binaries	O
are	O
available	O
for	O
DOS	B-Device
,	O
Windows	O
and	O
Linux	B-Application
.	O
</s>
<s>
For	O
OS/2	B-Application
and	O
FreeBSD	B-Operating_System
,	O
makefiles	O
are	O
supplied	O
.	O
</s>
<s>
Supports	O
Intel	O
x86	B-Language
(	O
8086	O
,	O
80186	O
,	O
80286	O
,	O
80386	O
,	O
80486	O
,	O
Pentium	O
,	O
Pentium	O
Pro	O
)	O
,	O
x86-64	O
instruction	O
sets	O
with	O
SIMD	B-Device
(	O
MMX	B-Architecture
,	O
3DNow	O
!,	O
SSE	O
,	O
SSE2	O
,	O
SSE3	O
and	O
SSSE3	O
,	O
SSE4.1/2	O
(	O
since	O
Jwasm	B-Application
)	O
,	O
AVX	B-General_Concept
(	O
since	O
JWasm	B-Application
2.06	O
)	O
,	O
VMX	O
(	O
Intel	B-General_Concept
VT-x	I-General_Concept
;	I-General_Concept
AMD	I-General_Concept
SVM	I-General_Concept
,	O
the	O
latter	O
though	O
already	O
implemented	O
,	O
currently	O
still	O
inactive	O
)	O
extensions	O
(	O
since	O
JWasm	B-Application
2.09	O
)	O
)	O
.	O
</s>
<s>
JWasm	B-Application
is	O
written	O
in	O
C	O
.	O
The	O
source	O
is	O
portable	O
and	O
has	O
successfully	O
been	O
tested	O
with	O
Open	B-Application
Watcom	I-Application
,	O
MS	O
VC	O
,	O
GCC	O
and	O
more	O
.	O
</s>
<s>
On	O
Windows	O
,	O
JWasm	B-Application
can	O
be	O
used	O
with	O
both	O
Win32Inc	O
and	O
Masm32	O
.	O
</s>
<s>
C	O
header	O
files	O
can	O
be	O
converted	O
to	O
include	O
files	O
for	O
JWasm	B-Application
with	O
Japheth	O
's	O
own	O
dedicated	O
h2incX	O
.	O
</s>
<s>
JWasm	B-Application
's	O
source	O
code	O
is	O
released	O
under	O
the	O
Sybase	O
Open	B-Application
Watcom	I-Application
Public	O
License	O
,	O
which	O
allows	O
free	O
commercial	O
and	O
non-commercial	O
use	O
.	O
</s>
<s>
Fully	O
supports	O
Microsoft	B-Application
macro	I-Application
assembler	I-Application
6	O
syntax	O
,	O
all	O
MASM	B-Application
8	O
instructions	O
sets	O
.	O
</s>
<s>
Japheth	O
ceased	O
development	O
(	O
or	O
rather	O
,	O
was	O
out	O
of	O
contact	O
)	O
of	O
JWASM	B-Application
in	O
January	O
2014	O
with	O
version	O
2.12pre	O
,	O
but	O
others	O
on	O
the	O
Masm32	O
forum	O
picked	O
up	O
where	O
Japheth	O
left	O
off	O
.	O
</s>
<s>
HJWasm	O
,	O
adding	O
the	O
prefix	O
H	O
in	O
reference	O
to	O
Masm32	O
forum	O
member	O
Habran	O
who	O
started	O
off	O
this	O
second	O
WASM	B-Application
development	O
continuation	O
.	O
</s>
<s>
SIMD	B-Device
:	O
</s>
<s>
MMX	B-Architecture
:	O
MOVQ	O
and	O
added	O
in	O
2.13	O
,	O
to	O
supplement	O
MOVD	O
.	O
</s>
<s>
AVX-512	B-General_Concept
:	O
VCMPxxPD	O
,	O
VCMPxxPS	O
,	O
VCMPxxSD	O
,	O
VCMPxxPD	O
,	O
VCMPxxSS	O
,	O
AVX-512F	O
set	O
,	O
EVEX-encoded	O
instructions	O
added	O
in	O
2.13	O
;	O
VMOVQ	O
added	O
2.13	O
,	O
to	O
supplement	O
MOVD	O
.	O
</s>
<s>
Random	O
Number	O
Generator	O
:	O
RDRAND	B-Language
,	O
RDSEED	B-Language
added	O
in	O
2.13	O
.	O
</s>
<s>
half-precision	O
conversions	O
:	O
F16C(VCVTPH2PS, VCVTPS2PH )	O
added	O
in	O
2.13	O
.	O
</s>
<s>
Intel	B-Device
MPX	I-Device
:	O
Added	O
in	O
2.31	O
.	O
</s>
<s>
The	O
name	O
was	O
used	O
following	O
a	O
MASM	B-Application
Forum	O
discussion	O
thread	O
that	O
originally	O
proposed	O
a	O
replacement	O
name	O
.	O
</s>
<s>
Intel	B-Device
MPX	I-Device
:	O
Support	O
of	O
BND	O
prefix	O
added	O
in	O
2.34	O
.	O
</s>
<s>
CLMUL	B-Device
instruction	I-Device
set	I-Device
:	O
Added	O
in	O
2.46.8	O
,	O
including	O
pseudo-op	O
forms	O
of	O
CLMUL	B-Device
.	O
</s>
<s>
Supervisor	B-Device
Mode	I-Device
Access	I-Device
Prevention	I-Device
:	O
CLAC	O
added	O
in	O
2.38	O
.	O
</s>
<s>
Console	O
colour	O
coding	O
:	O
Added	O
for	O
Windows	O
,	O
OSX	O
and	O
Linux	B-Application
in	O
2.43.1	O
/	O
.2	O
.	O
</s>
