X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=sfpy%2Fposit.pyx;h=c30226df5083d93a94cec1f2ef8cbc2946986faf;hb=eaceb5390b918fd43de1c81fad733326b8fb136b;hp=d09b603c14733a1afeb7c7bdd688ae1d6096348b;hpb=613fd66860992ec270d1515a4cd92b4468bc6280;p=sfpy.git

diff --git a/sfpy/posit.pyx b/sfpy/posit.pyx
index d09b603..c30226d 100644
--- a/sfpy/posit.pyx
+++ b/sfpy/posit.pyx
@@ -2,10 +2,35 @@ from libc.stdint cimport *
 cimport cposit
 
 
-# special values needed for some initializations
+# special values and C helpers
 
-cdef posit8_one = cposit.ui32_to_p8(1)
-cdef posit16_one = cposit.ui32_to_p16(1)
+cdef _p8_one = cposit.ui32_to_p8(1)
+cdef _p16_one = cposit.ui32_to_p16(1)
+cdef _p32_one = cposit.ui32_to_p32(1)
+
+cdef inline cposit.posit8_t _p8_neg(cposit.posit8_t f):
+    f.v = -f.v
+    return f
+
+cdef inline cposit.posit16_t _p16_neg(cposit.posit16_t f):
+    f.v = -f.v
+    return f
+
+cdef inline cposit.posit32_t _p32_neg(cposit.posit32_t f):
+    f.v = -f.v
+    return f
+
+cdef inline cposit.posit8_t _p8_abs(cposit.posit8_t f):
+    f.v = <uint8_t> abs(<int8_t> f.v)
+    return f
+
+cdef inline cposit.posit16_t _p16_abs(cposit.posit16_t f):
+    f.v = <uint16_t> abs(<int16_t> f.v)
+    return f
+
+cdef inline cposit.posit32_t _p32_abs(cposit.posit32_t f):
+    f.v = <uint32_t> abs(<int32_t> f.v)
+    return f
 
 
 cdef class Posit8:
@@ -68,12 +93,26 @@ cdef class Posit8:
 
     # arithmetic
 
+    cpdef Posit8 neg(self):
+        cdef cposit.posit8_t f = _p8_neg(self._c_posit)
+        return Posit8.from_c_posit(f)
+
+    def __neg__(self):
+        return self.neg()
+
+    cpdef Posit8 abs(self):
+        cdef cposit.posit8_t f = _p8_abs(self._c_posit)
+        return Posit8.from_c_posit(f)
+
+    def __abs__(self):
+        return self.abs()
+
     cpdef Posit8 round(self):
         cdef cposit.posit8_t f = cposit.p8_roundToInt(self._c_posit)
         return Posit8.from_c_posit(f)
 
     def __round__(self):
-        return self.roundToInt()
+        return self.round()
 
     cpdef Posit8 add(self, Posit8 other):
         cdef cposit.posit8_t f = cposit.p8_add(self._c_posit, other._c_posit)
@@ -100,7 +139,7 @@ cdef class Posit8:
         cdef cposit.posit8_t f = cposit.p8_mulAdd(self._c_posit, a2._c_posit, a3._c_posit)
         return Posit8.from_c_posit(f)
 
-    cpdef Posit8 qma(self, Posit8 a1, Posit8 a2):
+    cpdef Posit8 fam(self, Posit8 a1, Posit8 a2):
         cdef cposit.posit8_t f = cposit.p8_mulAdd(a1._c_posit, a2._c_posit, self._c_posit)
         return Posit8.from_c_posit(f)
 
@@ -117,6 +156,12 @@ cdef class Posit8:
 
     # in-place arithmetic
 
+    cpdef void ineg(self):
+        self._c_posit = _p8_neg(self._c_posit)
+
+    cpdef void iabs(self):
+        self._c_posit = _p8_abs(self._c_posit)
+
     cpdef void iround(self):
         self._c_posit = cposit.p8_roundToInt(self._c_posit)
 
@@ -144,7 +189,7 @@ cdef class Posit8:
     cpdef void ifma(self, Posit8 a2, Posit8 a3):
         self._c_posit = cposit.p8_mulAdd(self._c_posit, a2._c_posit, a3._c_posit)
 
-    cpdef void iqma(self, Posit8 a1, Posit8 a2):
+    cpdef void ifam(self, Posit8 a1, Posit8 a2):
         self._c_posit = cposit.p8_mulAdd(a1._c_posit, a2._c_posit, self._c_posit)
 
     cpdef void idiv(self, Posit8 other):
@@ -192,10 +237,14 @@ cdef class Posit8:
         cdef cposit.posit16_t f = cposit.p8_to_p16(self._c_posit)
         return Posit16.from_c_posit(f)
 
+    cpdef to_p32(self):
+        cdef cposit.posit32_t f = cposit.p8_to_p32(self._c_posit)
+        return Posit32.from_c_posit(f)
+
     cpdef to_quire(self):
         cdef cposit.quire8_t f
         cposit.q8_clr(f)
-        f = cposit.q8_fdp_add(f, self._c_posit, posit8_one)
+        f = cposit.q8_fdp_add(f, self._c_posit, _p8_one)
         return Quire8.from_c_quire(f)
 
 
@@ -232,7 +281,7 @@ cdef class Quire8:
         else:
             f = float(value)
             cposit.q8_clr(self._c_quire)
-            self._c_quire = cposit.q8_fdp_add(self._c_quire, cposit.convertDoubleToP8(f), posit8_one)
+            self._c_quire = cposit.q8_fdp_add(self._c_quire, cposit.convertDoubleToP8(f), _p8_one)
 
     def __float__(self):
         return cposit.convertP8ToDouble(cposit.q8_to_p8(self._c_quire))
@@ -252,18 +301,18 @@ cdef class Quire8:
 
     # arithmetic
 
-    cpdef Quire8 qma(self, Posit8 a1, Posit8 a2):
+    cpdef Quire8 qam(self, Posit8 a1, Posit8 a2):
         cdef cposit.quire8_t f = cposit.q8_fdp_add(self._c_quire, a1._c_posit, a2._c_posit)
         return Quire8.from_c_quire(f)
 
-    cpdef Quire8 qms(self, Posit8 a1, Posit8 a2):
+    cpdef Quire8 qsm(self, Posit8 a1, Posit8 a2):
         cdef cposit.quire8_t f = cposit.q8_fdp_sub(self._c_quire, a1._c_posit, a2._c_posit)
         return Quire8.from_c_quire(f)
 
-    cpdef void iqma(self, Posit8 a1, Posit8 a2):
+    cpdef void iqam(self, Posit8 a1, Posit8 a2):
         self._c_quire = cposit.q8_fdp_add(self._c_quire, a1._c_posit, a2._c_posit)
 
-    cpdef void iqms(self, Posit8 a1, Posit8 a2):
+    cpdef void iqsm(self, Posit8 a1, Posit8 a2):
         self._c_quire = cposit.q8_fdp_sub(self._c_quire, a1._c_posit, a2._c_posit)
 
     cpdef void iclr(self):
@@ -278,6 +327,14 @@ cdef class Quire8:
 
 # external, non-method arithmetic
 
+cpdef Posit8 p8_neg(Posit8 a1):
+    cdef cposit.posit8_t f = _p8_neg(a1._c_posit)
+    return Posit8.from_c_posit(f)
+
+cpdef Posit8 p8_abs(Posit8 a1):
+    cdef cposit.posit8_t f = _p8_abs(a1._c_posit)
+    return Posit8.from_c_posit(f)
+
 cpdef Posit8 p8_round(Posit8 a1):
     cdef cposit.posit8_t f = cposit.p8_roundToInt(a1._c_posit)
     return Posit8.from_c_posit(f)
@@ -298,7 +355,7 @@ cpdef Posit8 p8_fma(Posit8 a1, Posit8 a2, Posit8 a3):
     cdef cposit.posit8_t f = cposit.p8_mulAdd(a1._c_posit, a2._c_posit, a3._c_posit)
     return Posit8.from_c_posit(f)
 
-cpdef Posit8 p8_qma(Posit8 a3, Posit8 a1, Posit8 a2):
+cpdef Posit8 p8_fam(Posit8 a3, Posit8 a1, Posit8 a2):
     cdef cposit.posit8_t f = cposit.p8_mulAdd(a1._c_posit, a2._c_posit, a3._c_posit)
     return Posit8.from_c_posit(f)
 
@@ -323,17 +380,21 @@ cpdef Posit16 p8_to_p16(Posit8 a1):
     cdef cposit.posit16_t f = cposit.p8_to_p16(a1._c_posit)
     return Posit16.from_c_posit(f)
 
+cpdef Posit32 p8_to_p32(Posit8 a1):
+    cdef cposit.posit32_t f = cposit.p8_to_p32(a1._c_posit)
+    return Posit32.from_c_posit(f)
+
 cpdef Quire8 p8_to_q8(Posit8 a1):
     cdef cposit.quire8_t f
     cposit.q8_clr(f)
-    f = cposit.q8_fdp_add(f, a1._c_posit, posit8_one)
+    f = cposit.q8_fdp_add(f, a1._c_posit, _p8_one)
     return Quire8.from_c_quire(f)
 
-cpdef Quire8 q8_qma(Quire8 a3, Posit8 a1, Posit8 a2):
+cpdef Quire8 q8_qam(Quire8 a3, Posit8 a1, Posit8 a2):
     cdef cposit.quire8_t f = cposit.q8_fdp_add(a3._c_quire, a1._c_posit, a2._c_posit)
     return Quire8.from_c_quire(f)
 
-cpdef Quire8 q8_qms(Quire8 a3, Posit8 a1, Posit8 a2):
+cpdef Quire8 q8_qsm(Quire8 a3, Posit8 a1, Posit8 a2):
     cdef cposit.quire8_t f = cposit.q8_fdp_sub(a3._c_quire, a1._c_posit, a2._c_posit)
     return Quire8.from_c_quire(f)
 
@@ -402,12 +463,26 @@ cdef class Posit16:
 
     # arithmetic
 
+    cpdef Posit16 neg(self):
+        cdef cposit.posit16_t f = _p16_neg(self._c_posit)
+        return Posit16.from_c_posit(f)
+
+    def __neg__(self):
+        return self.neg()
+
+    cpdef Posit16 abs(self):
+        cdef cposit.posit16_t f = _p16_abs(self._c_posit)
+        return Posit16.from_c_posit(f)
+
+    def __abs__(self):
+        return self.abs()
+
     cpdef Posit16 round(self):
         cdef cposit.posit16_t f = cposit.p16_roundToInt(self._c_posit)
         return Posit16.from_c_posit(f)
 
     def __round__(self):
-        return self.roundToInt()
+        return self.round()
 
     cpdef Posit16 add(self, Posit16 other):
         cdef cposit.posit16_t f = cposit.p16_add(self._c_posit, other._c_posit)
@@ -434,7 +509,7 @@ cdef class Posit16:
         cdef cposit.posit16_t f = cposit.p16_mulAdd(self._c_posit, a2._c_posit, a3._c_posit)
         return Posit16.from_c_posit(f)
 
-    cpdef Posit16 qma(self, Posit16 a1, Posit16 a2):
+    cpdef Posit16 fam(self, Posit16 a1, Posit16 a2):
         cdef cposit.posit16_t f = cposit.p16_mulAdd(a1._c_posit, a2._c_posit, self._c_posit)
         return Posit16.from_c_posit(f)
 
@@ -451,6 +526,12 @@ cdef class Posit16:
 
     # in-place arithmetic
 
+    cpdef void ineg(self):
+        self._c_posit = _p16_neg(self._c_posit)
+
+    cpdef void iabs(self):
+        self._c_posit = _p16_abs(self._c_posit)
+
     cpdef void iround(self):
         self._c_posit = cposit.p16_roundToInt(self._c_posit)
 
@@ -478,7 +559,7 @@ cdef class Posit16:
     cpdef void ifma(self, Posit16 a2, Posit16 a3):
         self._c_posit = cposit.p16_mulAdd(self._c_posit, a2._c_posit, a3._c_posit)
 
-    cpdef void iqma(self, Posit16 a1, Posit16 a2):
+    cpdef void ifam(self, Posit16 a1, Posit16 a2):
         self._c_posit = cposit.p16_mulAdd(a1._c_posit, a2._c_posit, self._c_posit)
 
     cpdef void idiv(self, Posit16 other):
@@ -526,10 +607,14 @@ cdef class Posit16:
         cdef cposit.posit8_t f = cposit.p16_to_p8(self._c_posit)
         return Posit8.from_c_posit(f)
 
+    cpdef to_p32(self):
+        cdef cposit.posit32_t f = cposit.p16_to_p32(self._c_posit)
+        return Posit32.from_c_posit(f)
+
     cpdef to_quire(self):
         cdef cposit.quire16_t f
         cposit.q16_clr(f)
-        f = cposit.q16_fdp_add(f, self._c_posit, posit16_one)
+        f = cposit.q16_fdp_add(f, self._c_posit, _p16_one)
         return Quire16.from_c_quire(f)
 
 
@@ -580,7 +665,7 @@ cdef class Quire16:
         else:
             f = float(value)
             cposit.q16_clr(self._c_quire)
-            self._c_quire = cposit.q16_fdp_add(self._c_quire, cposit.convertDoubleToP16(f), posit16_one)
+            self._c_quire = cposit.q16_fdp_add(self._c_quire, cposit.convertDoubleToP16(f), _p16_one)
 
     def __float__(self):
         return cposit.convertP16ToDouble(cposit.q16_to_p16(self._c_quire))
@@ -604,18 +689,18 @@ cdef class Quire16:
 
     # arithmetic
 
-    cpdef Quire16 qma(self, Posit16 a1, Posit16 a2):
+    cpdef Quire16 qam(self, Posit16 a1, Posit16 a2):
         cdef cposit.quire16_t f = cposit.q16_fdp_add(self._c_quire, a1._c_posit, a2._c_posit)
         return Quire16.from_c_quire(f)
 
-    cpdef Quire16 qms(self, Posit16 a1, Posit16 a2):
+    cpdef Quire16 qsm(self, Posit16 a1, Posit16 a2):
         cdef cposit.quire16_t f = cposit.q16_fdp_sub(self._c_quire, a1._c_posit, a2._c_posit)
         return Quire16.from_c_quire(f)
 
-    cpdef void iqma(self, Posit16 a1, Posit16 a2):
+    cpdef void iqam(self, Posit16 a1, Posit16 a2):
         self._c_quire = cposit.q16_fdp_add(self._c_quire, a1._c_posit, a2._c_posit)
 
-    cpdef void iqms(self, Posit16 a1, Posit16 a2):
+    cpdef void iqsm(self, Posit16 a1, Posit16 a2):
         self._c_quire = cposit.q16_fdp_sub(self._c_quire, a1._c_posit, a2._c_posit)
 
     cpdef void iclr(self):
@@ -630,6 +715,14 @@ cdef class Quire16:
 
 # external, non-method arithmetic
 
+cpdef Posit16 p16_neg(Posit16 a1):
+    cdef cposit.posit16_t f = _p16_neg(a1._c_posit)
+    return Posit16.from_c_posit(f)
+
+cpdef Posit16 p16_abs(Posit16 a1):
+    cdef cposit.posit16_t f = _p16_abs(a1._c_posit)
+    return Posit16.from_c_posit(f)
+
 cpdef Posit16 p16_round(Posit16 a1):
     cdef cposit.posit16_t f = cposit.p16_roundToInt(a1._c_posit)
     return Posit16.from_c_posit(f)
@@ -650,7 +743,7 @@ cpdef Posit16 p16_fma(Posit16 a1, Posit16 a2, Posit16 a3):
     cdef cposit.posit16_t f = cposit.p16_mulAdd(a1._c_posit, a2._c_posit, a3._c_posit)
     return Posit16.from_c_posit(f)
 
-cpdef Posit16 p16_qma(Posit16 a3, Posit16 a1, Posit16 a2):
+cpdef Posit16 p16_fam(Posit16 a3, Posit16 a1, Posit16 a2):
     cdef cposit.posit16_t f = cposit.p16_mulAdd(a1._c_posit, a2._c_posit, a3._c_posit)
     return Posit16.from_c_posit(f)
 
@@ -675,20 +768,412 @@ cpdef Posit8 p16_to_p8(Posit16 a1):
     cdef cposit.posit8_t f = cposit.p16_to_p8(a1._c_posit)
     return Posit8.from_c_posit(f)
 
+cpdef Posit32 p16_to_p32(Posit16 a1):
+    cdef cposit.posit32_t f = cposit.p16_to_p32(a1._c_posit)
+    return Posit32.from_c_posit(f)
+
 cpdef Quire16 p16_to_q16(Posit16 a1):
     cdef cposit.quire16_t f
     cposit.q16_clr(f)
-    f = cposit.q16_fdp_add(f, a1._c_posit, posit16_one)
+    f = cposit.q16_fdp_add(f, a1._c_posit, _p16_one)
     return Quire16.from_c_quire(f)
 
-cpdef Quire16 q16_qma(Quire16 a3, Posit16 a1, Posit16 a2):
+cpdef Quire16 q16_qam(Quire16 a3, Posit16 a1, Posit16 a2):
     cdef cposit.quire16_t f = cposit.q16_fdp_add(a3._c_quire, a1._c_posit, a2._c_posit)
     return Quire16.from_c_quire(f)
 
-cpdef Quire16 q16_qms(Quire16 a3, Posit16 a1, Posit16 a2):
+cpdef Quire16 q16_qsm(Quire16 a3, Posit16 a1, Posit16 a2):
     cdef cposit.quire16_t f = cposit.q16_fdp_sub(a3._c_quire, a1._c_posit, a2._c_posit)
     return Quire16.from_c_quire(f)
 
 cpdef Posit16 q16_to_p16(Quire16 a1):
     cpdef cposit.posit16_t f = cposit.q16_to_p16(a1._c_quire)
     return Posit16.from_c_posit(f)
+
+
+cdef class Posit32:
+
+    # the wrapped posit value
+    cdef cposit.posit32_t _c_posit
+
+    # factory function constructors that bypass __init__
+
+    @staticmethod
+    cdef Posit32 from_c_posit(cposit.posit32_t f):
+        """Factory function to create a Posit32 object directly from
+        a C posit32_t.
+        """
+        cdef Posit32 obj = Posit32.__new__(Posit32)
+        obj._c_posit = f
+        return obj
+
+    @staticmethod
+    def from_bits(uint32_t value):
+        """Factory function to create a Posit32 object from a bit pattern
+        represented as an integer.
+        """
+        cdef Posit32 obj = Posit32.__new__(Posit32)
+        obj._c_posit.v = value
+        return obj
+
+    @staticmethod
+    def from_double(double value):
+        """Factory function to create a Posit32 object from a double.
+        """
+        cdef Posit32 obj = Posit32.__new__(Posit32)
+        obj._c_posit = cposit.convertDoubleToP32(value)
+        return obj
+
+    # convenience interface for use inside Python
+
+    def __init__(self, value):
+        if isinstance(value, int):
+            self._c_posit.v = value
+        else:
+            f = float(value)
+            self._c_posit = cposit.convertDoubleToP32(f)
+
+    def __float__(self):
+        return cposit.convertP32ToDouble(self._c_posit)
+
+    def __int__(self):
+        return int(cposit.convertP32ToDouble(self._c_posit))
+
+    def __str__(self):
+        return repr(cposit.convertP32ToDouble(self._c_posit))
+
+    def __repr__(self):
+        return 'Posit32(' + repr(cposit.convertP32ToDouble(self._c_posit)) + ')'
+
+    cpdef uint32_t get_bits(self):
+        return self._c_posit.v
+    bits = property(get_bits)
+
+    # arithmetic
+
+    cpdef Posit32 neg(self):
+        cdef cposit.posit32_t f = _p32_neg(self._c_posit)
+        return Posit32.from_c_posit(f)
+
+    def __neg__(self):
+        return self.neg()
+
+    cpdef Posit32 abs(self):
+        cdef cposit.posit32_t f = _p32_abs(self._c_posit)
+        return Posit32.from_c_posit(f)
+
+    def __abs__(self):
+        return self.abs()
+
+    cpdef Posit32 round(self):
+        cdef cposit.posit32_t f = cposit.p32_roundToInt(self._c_posit)
+        return Posit32.from_c_posit(f)
+
+    def __round__(self):
+        return self.round()
+
+    cpdef Posit32 add(self, Posit32 other):
+        cdef cposit.posit32_t f = cposit.p32_add(self._c_posit, other._c_posit)
+        return Posit32.from_c_posit(f)
+
+    def __add__(self, Posit32 other):
+        return self.add(other)
+
+    cpdef Posit32 sub(self, Posit32 other):
+        cdef cposit.posit32_t f = cposit.p32_sub(self._c_posit, other._c_posit)
+        return Posit32.from_c_posit(f)
+
+    def __sub__(self, Posit32 other):
+        return self.sub(other)
+
+    cpdef Posit32 mul(self, Posit32 other):
+        cdef cposit.posit32_t f = cposit.p32_mul(self._c_posit, other._c_posit)
+        return Posit32.from_c_posit(f)
+
+    def __mul__(self, Posit32 other):
+        return self.mul(other)
+
+    cpdef Posit32 fma(self, Posit32 a2, Posit32 a3):
+        cdef cposit.posit32_t f = cposit.p32_mulAdd(self._c_posit, a2._c_posit, a3._c_posit)
+        return Posit32.from_c_posit(f)
+
+    cpdef Posit32 fam(self, Posit32 a1, Posit32 a2):
+        cdef cposit.posit32_t f = cposit.p32_mulAdd(a1._c_posit, a2._c_posit, self._c_posit)
+        return Posit32.from_c_posit(f)
+
+    cpdef Posit32 div(self, Posit32 other):
+        cdef cposit.posit32_t f = cposit.p32_div(self._c_posit, other._c_posit)
+        return Posit32.from_c_posit(f)
+
+    def __truediv__(self, Posit32 other):
+        return self.div(other)
+
+    cpdef Posit32 sqrt(self):
+        cdef cposit.posit32_t f = cposit.p32_sqrt(self._c_posit)
+        return Posit32.from_c_posit(f)
+
+    # in-place arithmetic
+
+    cpdef void ineg(self):
+        self._c_posit = _p32_neg(self._c_posit)
+
+    cpdef void iabs(self):
+        self._c_posit = _p32_abs(self._c_posit)
+
+    cpdef void iround(self):
+        self._c_posit = cposit.p32_roundToInt(self._c_posit)
+
+    cpdef void iadd(self, Posit32 other):
+        self._c_posit = cposit.p32_add(self._c_posit, other._c_posit)
+
+    def __iadd__(self, Posit32 other):
+        self.iadd(other)
+        return self
+
+    cpdef void isub(self, Posit32 other):
+        self._c_posit = cposit.p32_sub(self._c_posit, other._c_posit)
+
+    def __isub__(self, Posit32 other):
+        self.isub(other)
+        return self
+
+    cpdef void imul(self, Posit32 other):
+        self._c_posit = cposit.p32_mul(self._c_posit, other._c_posit)
+
+    def __imul__(self, Posit32 other):
+        self.imul(other)
+        return self
+
+    cpdef void ifma(self, Posit32 a2, Posit32 a3):
+        self._c_posit = cposit.p32_mulAdd(self._c_posit, a2._c_posit, a3._c_posit)
+
+    cpdef void ifam(self, Posit32 a1, Posit32 a2):
+        self._c_posit = cposit.p32_mulAdd(a1._c_posit, a2._c_posit, self._c_posit)
+
+    cpdef void idiv(self, Posit32 other):
+        self._c_posit = cposit.p32_div(self._c_posit, other._c_posit)
+
+    def __itruediv__(self, Posit32 other):
+        self.idiv(other)
+        return self
+
+    cpdef void isqrt(self):
+        self._c_posit = cposit.p32_sqrt(self._c_posit)
+
+    # comparison
+
+    cpdef bint eq(self, Posit32 other):
+        return cposit.p32_eq(self._c_posit, other._c_posit)
+
+    cpdef bint le(self, Posit32 other):
+        return cposit.p32_le(self._c_posit, other._c_posit)
+
+    cpdef bint lt(self, Posit32 other):
+        return cposit.p32_lt(self._c_posit, other._c_posit)
+
+    def __lt__(self, Posit32 other):
+        return self.lt(other)
+
+    def __le__(self, Posit32 other):
+        return self.le(other)
+
+    def __eq__(self, Posit32 other):
+        return self.eq(other)
+
+    def __ne__(self, Posit32 other):
+        return not self.eq(other)
+
+    def __ge__(self, Posit32 other):
+        return other.le(self)
+
+    def __gt__(self, Posit32 other):
+        return other.lt(self)
+
+    # conversion to other posit types
+
+    cpdef to_p8(self):
+        cdef cposit.posit8_t f = cposit.p32_to_p8(self._c_posit)
+        return Posit8.from_c_posit(f)
+
+    cpdef to_p16(self):
+        cdef cposit.posit16_t f = cposit.p32_to_p16(self._c_posit)
+        return Posit16.from_c_posit(f)
+
+    cpdef to_quire(self):
+        cdef cposit.quire32_t f
+        cposit.q32_clr(f)
+        f = cposit.q32_fdp_add(f, self._c_posit, _p32_one)
+        return Quire32.from_c_quire(f)
+
+
+cdef class Quire32:
+
+    # the wrapped quire value
+    cdef cposit.quire32_t _c_quire
+
+    # factory function constructors that bypass init
+
+    @staticmethod
+    cdef Quire32 from_c_quire(cposit.quire32_t f):
+        """Factory function to create a Quire32 object directly from
+        a C quire32_t.
+        """
+        cdef Quire32 obj = Quire32.__new__(Quire32)
+        obj._c_quire = f
+        return obj
+
+    @staticmethod
+    def from_bits(value):
+        """Factory function to create a Quire32 object from a bit pattern
+        represented as an integer.
+        """
+        cdef Quire32 obj = Quire32.__new__(Quire32)
+
+        if not isinstance(value, int):
+            raise TypeError('expecting int, got {}'.format(repr(value)))
+
+        for idx in range(1, -1, -1):
+            obj._c_quire.v[idx] = value & 0xffffffffffffffff
+            value >>= 64
+
+        if not (value == 0):
+            raise OverflowError('value too large to fit in uint64_t[2]')
+
+        return obj
+
+    # convenience interface for use inside Python
+
+    def __init__(self, value):
+        if isinstance(value, int):
+            for idx in range(1, -1, -1):
+                self._c_quire.v[idx] = value & 0xffffffffffffffff
+                value >>= 64
+            if not (value == 0):
+                raise OverflowError('value too large to fit in uint64_t[2]')
+        else:
+            f = float(value)
+            cposit.q32_clr(self._c_quire)
+            self._c_quire = cposit.q32_fdp_add(self._c_quire, cposit.convertDoubleToP32(f), _p32_one)
+
+    def __float__(self):
+        return cposit.convertP32ToDouble(cposit.q32_to_p32(self._c_quire))
+
+    def __int__(self):
+        return int(cposit.convertP32ToDouble(cposit.q32_to_p32(self._c_quire)))
+
+    def __str__(self):
+        return repr(cposit.convertP32ToDouble(cposit.q32_to_p32(self._c_quire)))
+
+    def __repr__(self):
+        return 'Quire32(' + repr(cposit.convertP32ToDouble(cposit.q32_to_p32(self._c_quire))) + ')'
+
+    def get_bits(self):
+        b = 0
+        for u in self._c_quire.v:
+            b <<= 64
+            b |= u
+        return b
+    bits = property(get_bits)
+
+    # arithmetic
+
+    cpdef Quire32 qam(self, Posit32 a1, Posit32 a2):
+        cdef cposit.quire32_t f = cposit.q32_fdp_add(self._c_quire, a1._c_posit, a2._c_posit)
+        return Quire32.from_c_quire(f)
+
+    cpdef Quire32 qsm(self, Posit32 a1, Posit32 a2):
+        cdef cposit.quire32_t f = cposit.q32_fdp_sub(self._c_quire, a1._c_posit, a2._c_posit)
+        return Quire32.from_c_quire(f)
+
+    cpdef void iqam(self, Posit32 a1, Posit32 a2):
+        self._c_quire = cposit.q32_fdp_add(self._c_quire, a1._c_posit, a2._c_posit)
+
+    cpdef void iqsm(self, Posit32 a1, Posit32 a2):
+        self._c_quire = cposit.q32_fdp_sub(self._c_quire, a1._c_posit, a2._c_posit)
+
+    cpdef void iclr(self):
+        cposit.q32_clr(self._c_quire)
+
+    # conversion back to posit
+
+    cpdef Posit32 to_posit(self):
+        cpdef cposit.posit32_t f = cposit.q32_to_p32(self._c_quire)
+        return Posit32.from_c_posit(f)
+
+
+# external, non-method arithmetic
+
+cpdef Posit32 p32_neg(Posit32 a1):
+    cdef cposit.posit32_t f = _p32_neg(a1._c_posit)
+    return Posit32.from_c_posit(f)
+
+cpdef Posit32 p32_abs(Posit32 a1):
+    cdef cposit.posit32_t f = _p32_abs(a1._c_posit)
+    return Posit32.from_c_posit(f)
+
+cpdef Posit32 p32_round(Posit32 a1):
+    cdef cposit.posit32_t f = cposit.p32_roundToInt(a1._c_posit)
+    return Posit32.from_c_posit(f)
+
+cpdef Posit32 p32_add(Posit32 a1, Posit32 a2):
+    cdef cposit.posit32_t f = cposit.p32_add(a1._c_posit, a2._c_posit)
+    return Posit32.from_c_posit(f)
+
+cpdef Posit32 p32_sub(Posit32 a1, Posit32 a2):
+    cdef cposit.posit32_t f = cposit.p32_sub(a1._c_posit, a2._c_posit)
+    return Posit32.from_c_posit(f)
+
+cpdef Posit32 p32_mul(Posit32 a1, Posit32 a2):
+    cdef cposit.posit32_t f = cposit.p32_mul(a1._c_posit, a2._c_posit)
+    return Posit32.from_c_posit(f)
+
+cpdef Posit32 p32_fma(Posit32 a1, Posit32 a2, Posit32 a3):
+    cdef cposit.posit32_t f = cposit.p32_mulAdd(a1._c_posit, a2._c_posit, a3._c_posit)
+    return Posit32.from_c_posit(f)
+
+cpdef Posit32 p32_fam(Posit32 a3, Posit32 a1, Posit32 a2):
+    cdef cposit.posit32_t f = cposit.p32_mulAdd(a1._c_posit, a2._c_posit, a3._c_posit)
+    return Posit32.from_c_posit(f)
+
+cpdef Posit32 p32_div(Posit32 a1, Posit32 a2):
+    cdef cposit.posit32_t f = cposit.p32_div(a1._c_posit, a2._c_posit)
+    return Posit32.from_c_posit(f)
+
+cpdef Posit32 p32_sqrt(Posit32 a1):
+    cdef cposit.posit32_t f = cposit.p32_sqrt(a1._c_posit)
+    return Posit32.from_c_posit(f)
+
+cpdef bint p32_eq(Posit32 a1, Posit32 a2):
+    return cposit.p32_eq(a1._c_posit, a2._c_posit)
+
+cpdef bint p32_le(Posit32 a1, Posit32 a2):
+    return cposit.p32_le(a1._c_posit, a2._c_posit)
+
+cpdef bint p32_lt(Posit32 a1, Posit32 a2):
+    return cposit.p32_lt(a1._c_posit, a2._c_posit)
+
+cpdef Posit8 p32_to_p8(Posit32 a1):
+    cdef cposit.posit8_t f = cposit.p32_to_p8(a1._c_posit)
+    return Posit8.from_c_posit(f)
+
+cpdef Posit16 p32_to_p16(Posit32 a1):
+    cdef cposit.posit16_t f = cposit.p32_to_p16(a1._c_posit)
+    return Posit16.from_c_posit(f)
+
+cpdef Quire32 p32_to_q32(Posit32 a1):
+    cdef cposit.quire32_t f
+    cposit.q32_clr(f)
+    f = cposit.q32_fdp_add(f, a1._c_posit, _p32_one)
+    return Quire32.from_c_quire(f)
+
+cpdef Quire32 q32_qam(Quire32 a3, Posit32 a1, Posit32 a2):
+    cdef cposit.quire32_t f = cposit.q32_fdp_add(a3._c_quire, a1._c_posit, a2._c_posit)
+    return Quire32.from_c_quire(f)
+
+cpdef Quire32 q32_qsm(Quire32 a3, Posit32 a1, Posit32 a2):
+    cdef cposit.quire32_t f = cposit.q32_fdp_sub(a3._c_quire, a1._c_posit, a2._c_posit)
+    return Quire32.from_c_quire(f)
+
+cpdef Posit32 q32_to_p32(Quire32 a1):
+    cpdef cposit.posit32_t f = cposit.q32_to_p32(a1._c_quire)
+    return Posit32.from_c_posit(f)