diff --git a/basis/math/vectors/simd/cords/cords.factor b/basis/math/vectors/simd/cords/cords.factor
new file mode 100644
index 0000000000..e099f6e830
--- /dev/null
+++ b/basis/math/vectors/simd/cords/cords.factor
@@ -0,0 +1,87 @@
+USING: accessors alien.c-types arrays byte-arrays
+cpu.architecture effects functors generalizations kernel lexer
+math math.vectors.simd math.vectors.simd.intrinsics parser
+prettyprint.custom quotations sequences sequences.cords words ;
+IN: math.vectors.simd.cords
+
+<<
+<PRIVATE
+
+FUNCTOR: (define-simd-128-cord) ( A/2 A -- )
+
+A-rep    IS            ${A/2}-rep
+>A/2     IS            >${A/2}
+A/2-boa  IS            ${A/2}-boa
+A/2-with IS            ${A/2}-with
+A/2-cast IS            ${A/2}-cast
+
+>A     DEFINES       >${A}
+A-boa  DEFINES       ${A}-boa
+A-with DEFINES       ${A}-with
+A-cast DEFINES       ${A}-cast
+A{     DEFINES       ${A}{
+
+N       [ A-rep rep-length ]
+BOA-EFFECT [ N 2 * "n" <repetition> >array { "v" } <effect> ]
+
+WHERE
+
+: >A ( seq -- A )
+    [ N head >A/2 ]
+    [ N tail >A/2 ] bi cord-append ;
+
+\ A-boa
+{ N ndip A/2-boa cord-append } { A/2-boa } >quotation prefix >quotation
+BOA-EFFECT define-inline
+
+: A-with ( n -- v )
+    [ A/2-with ] [ A/2-with ] bi cord-append ;
+
+: A-cast ( v -- v' )
+    [ A/2-cast ] cord-map ;
+
+M: A >pprint-sequence ;
+M: A pprint* pprint-object ;
+
+M: A pprint-delims drop \ A{ \ } ;
+SYNTAX: A{ \ } [ >A ] parse-literal ;
+
+<c-type>
+    byte-array >>class
+    A >>boxed-class
+    [
+        [      A-rep alien-vector A/2 boa ]
+        [ 16 + A-rep alien-vector A/2 boa ] 2bi cord-append
+    ] >>getter
+    [
+        [ [ head>> underlying>> ] 2dip      A-rep set-alien-vector ]
+        [ [ tail>> underlying>> ] 2dip 16 + A-rep set-alien-vector ] 3bi
+    ] >>setter
+    32 >>size
+    16 >>align
+    A-rep >>rep
+\ A typedef
+
+;FUNCTOR
+
+: define-simd-128-cord ( A/2 T -- )
+    [ define-specialized-cord ]
+    [ create-in (define-simd-128-cord) ] 2bi ;
+
+SYNTAX: SIMD-128-CORD:
+    scan-word scan define-simd-128-cord ;
+
+PRIVATE>
+>>
+
+SIMD-128-CORD: char-16     char-32
+SIMD-128-CORD: uchar-16    uchar-32
+SIMD-128-CORD: short-8     short-16
+SIMD-128-CORD: ushort-8    ushort-16
+SIMD-128-CORD: int-4       int-8
+SIMD-128-CORD: uint-4      uint-8
+SIMD-128-CORD: longlong-2  longlong-4
+SIMD-128-CORD: ulonglong-2 ulonglong-4
+SIMD-128-CORD: float-4     float-8
+SIMD-128-CORD: double-2    double-4
+