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-rw-r--r--sysdeps/generic/mul_n.c110
1 files changed, 53 insertions, 57 deletions
diff --git a/sysdeps/generic/mul_n.c b/sysdeps/generic/mul_n.c
index e37c5d8290..049f63dce8 100644
--- a/sysdeps/generic/mul_n.c
+++ b/sysdeps/generic/mul_n.c
@@ -1,6 +1,6 @@
-/* __mpn_mul_n -- Multiply two natural numbers of length n.
+/* mpn_mul_n -- Multiply two natural numbers of length n.
-Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
+Copyright (C) 1991, 1992, 1993, 1994, 1996 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
@@ -41,13 +41,6 @@ the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define KARATSUBA_THRESHOLD 2
#endif
-void
-#if __STDC__
-____mpn_mul_n (mp_ptr, mp_srcptr, mp_srcptr, mp_size_t, mp_ptr);
-#else
-____mpn_mul_n ();
-#endif
-
/* Handle simple cases with traditional multiplication.
This is the most critical code of multiplication. All multiplies rely
@@ -57,9 +50,9 @@ ____mpn_mul_n ();
void
#if __STDC__
-____mpn_mul_n_basecase (mp_ptr prodp, mp_srcptr up, mp_srcptr vp, mp_size_t size)
+impn_mul_n_basecase (mp_ptr prodp, mp_srcptr up, mp_srcptr vp, mp_size_t size)
#else
-____mpn_mul_n_basecase (prodp, up, vp, size)
+impn_mul_n_basecase (prodp, up, vp, size)
mp_ptr prodp;
mp_srcptr up;
mp_srcptr vp;
@@ -82,7 +75,7 @@ ____mpn_mul_n_basecase (prodp, up, vp, size)
cy_limb = 0;
}
else
- cy_limb = __mpn_mul_1 (prodp, up, size, v_limb);
+ cy_limb = mpn_mul_1 (prodp, up, size, v_limb);
prodp[size] = cy_limb;
prodp++;
@@ -96,10 +89,10 @@ ____mpn_mul_n_basecase (prodp, up, vp, size)
{
cy_limb = 0;
if (v_limb == 1)
- cy_limb = __mpn_add_n (prodp, prodp, up, size);
+ cy_limb = mpn_add_n (prodp, prodp, up, size);
}
else
- cy_limb = __mpn_addmul_1 (prodp, up, size, v_limb);
+ cy_limb = mpn_addmul_1 (prodp, up, size, v_limb);
prodp[size] = cy_limb;
prodp++;
@@ -108,10 +101,10 @@ ____mpn_mul_n_basecase (prodp, up, vp, size)
void
#if __STDC__
-____mpn_mul_n (mp_ptr prodp,
+impn_mul_n (mp_ptr prodp,
mp_srcptr up, mp_srcptr vp, mp_size_t size, mp_ptr tspace)
#else
-____mpn_mul_n (prodp, up, vp, size, tspace)
+impn_mul_n (prodp, up, vp, size, tspace)
mp_ptr prodp;
mp_srcptr up;
mp_srcptr vp;
@@ -135,9 +128,9 @@ ____mpn_mul_n (prodp, up, vp, size, tspace)
mp_limb cy_limb;
MPN_MUL_N_RECURSE (prodp, up, vp, esize, tspace);
- cy_limb = __mpn_addmul_1 (prodp + esize, up, esize, vp[esize]);
+ cy_limb = mpn_addmul_1 (prodp + esize, up, esize, vp[esize]);
prodp[esize + esize] = cy_limb;
- cy_limb = __mpn_addmul_1 (prodp + esize, vp, size, up[esize]);
+ cy_limb = mpn_addmul_1 (prodp + esize, vp, size, up[esize]);
prodp[esize + size] = cy_limb;
}
@@ -170,24 +163,24 @@ ____mpn_mul_n (prodp, up, vp, size, tspace)
/*** Product M. ________________
|_(U1-U0)(V0-V1)_| */
- if (__mpn_cmp (up + hsize, up, hsize) >= 0)
+ if (mpn_cmp (up + hsize, up, hsize) >= 0)
{
- __mpn_sub_n (prodp, up + hsize, up, hsize);
+ mpn_sub_n (prodp, up + hsize, up, hsize);
negflg = 0;
}
else
{
- __mpn_sub_n (prodp, up, up + hsize, hsize);
+ mpn_sub_n (prodp, up, up + hsize, hsize);
negflg = 1;
}
- if (__mpn_cmp (vp + hsize, vp, hsize) >= 0)
+ if (mpn_cmp (vp + hsize, vp, hsize) >= 0)
{
- __mpn_sub_n (prodp + hsize, vp + hsize, vp, hsize);
+ mpn_sub_n (prodp + hsize, vp + hsize, vp, hsize);
negflg ^= 1;
}
else
{
- __mpn_sub_n (prodp + hsize, vp, vp + hsize, hsize);
+ mpn_sub_n (prodp + hsize, vp, vp + hsize, hsize);
/* No change of NEGFLG. */
}
/* Read temporary operands from low part of PROD.
@@ -197,13 +190,13 @@ ____mpn_mul_n (prodp, up, vp, size, tspace)
/*** Add/copy product H. */
MPN_COPY (prodp + hsize, prodp + size, hsize);
- cy = __mpn_add_n (prodp + size, prodp + size, prodp + size + hsize, hsize);
+ cy = mpn_add_n (prodp + size, prodp + size, prodp + size + hsize, hsize);
/*** Add product M (if NEGFLG M is a negative number). */
if (negflg)
- cy -= __mpn_sub_n (prodp + hsize, prodp + hsize, tspace, size);
+ cy -= mpn_sub_n (prodp + hsize, prodp + hsize, tspace, size);
else
- cy += __mpn_add_n (prodp + hsize, prodp + hsize, tspace, size);
+ cy += mpn_add_n (prodp + hsize, prodp + hsize, tspace, size);
/*** Product L. ________________ ________________
|________________||____U0 x V0_____| */
@@ -214,22 +207,22 @@ ____mpn_mul_n (prodp, up, vp, size, tspace)
/*** Add/copy Product L (twice). */
- cy += __mpn_add_n (prodp + hsize, prodp + hsize, tspace, size);
+ cy += mpn_add_n (prodp + hsize, prodp + hsize, tspace, size);
if (cy)
- __mpn_add_1 (prodp + hsize + size, prodp + hsize + size, hsize, cy);
+ mpn_add_1 (prodp + hsize + size, prodp + hsize + size, hsize, cy);
MPN_COPY (prodp, tspace, hsize);
- cy = __mpn_add_n (prodp + hsize, prodp + hsize, tspace + hsize, hsize);
+ cy = mpn_add_n (prodp + hsize, prodp + hsize, tspace + hsize, hsize);
if (cy)
- __mpn_add_1 (prodp + size, prodp + size, size, 1);
+ mpn_add_1 (prodp + size, prodp + size, size, 1);
}
}
void
#if __STDC__
-____mpn_sqr_n_basecase (mp_ptr prodp, mp_srcptr up, mp_size_t size)
+impn_sqr_n_basecase (mp_ptr prodp, mp_srcptr up, mp_size_t size)
#else
-____mpn_sqr_n_basecase (prodp, up, size)
+impn_sqr_n_basecase (prodp, up, size)
mp_ptr prodp;
mp_srcptr up;
mp_size_t size;
@@ -251,7 +244,7 @@ ____mpn_sqr_n_basecase (prodp, up, size)
cy_limb = 0;
}
else
- cy_limb = __mpn_mul_1 (prodp, up, size, v_limb);
+ cy_limb = mpn_mul_1 (prodp, up, size, v_limb);
prodp[size] = cy_limb;
prodp++;
@@ -265,10 +258,10 @@ ____mpn_sqr_n_basecase (prodp, up, size)
{
cy_limb = 0;
if (v_limb == 1)
- cy_limb = __mpn_add_n (prodp, prodp, up, size);
+ cy_limb = mpn_add_n (prodp, prodp, up, size);
}
else
- cy_limb = __mpn_addmul_1 (prodp, up, size, v_limb);
+ cy_limb = mpn_addmul_1 (prodp, up, size, v_limb);
prodp[size] = cy_limb;
prodp++;
@@ -277,10 +270,10 @@ ____mpn_sqr_n_basecase (prodp, up, size)
void
#if __STDC__
-____mpn_sqr_n (mp_ptr prodp,
+impn_sqr_n (mp_ptr prodp,
mp_srcptr up, mp_size_t size, mp_ptr tspace)
#else
-____mpn_sqr_n (prodp, up, size, tspace)
+impn_sqr_n (prodp, up, size, tspace)
mp_ptr prodp;
mp_srcptr up;
mp_size_t size;
@@ -303,9 +296,9 @@ ____mpn_sqr_n (prodp, up, size, tspace)
mp_limb cy_limb;
MPN_SQR_N_RECURSE (prodp, up, esize, tspace);
- cy_limb = __mpn_addmul_1 (prodp + esize, up, esize, up[esize]);
+ cy_limb = mpn_addmul_1 (prodp + esize, up, esize, up[esize]);
prodp[esize + esize] = cy_limb;
- cy_limb = __mpn_addmul_1 (prodp + esize, up, size, up[esize]);
+ cy_limb = mpn_addmul_1 (prodp + esize, up, size, up[esize]);
prodp[esize + size] = cy_limb;
}
@@ -322,13 +315,13 @@ ____mpn_sqr_n (prodp, up, size, tspace)
/*** Product M. ________________
|_(U1-U0)(U0-U1)_| */
- if (__mpn_cmp (up + hsize, up, hsize) >= 0)
+ if (mpn_cmp (up + hsize, up, hsize) >= 0)
{
- __mpn_sub_n (prodp, up + hsize, up, hsize);
+ mpn_sub_n (prodp, up + hsize, up, hsize);
}
else
{
- __mpn_sub_n (prodp, up, up + hsize, hsize);
+ mpn_sub_n (prodp, up, up + hsize, hsize);
}
/* Read temporary operands from low part of PROD.
@@ -338,10 +331,10 @@ ____mpn_sqr_n (prodp, up, size, tspace)
/*** Add/copy product H. */
MPN_COPY (prodp + hsize, prodp + size, hsize);
- cy = __mpn_add_n (prodp + size, prodp + size, prodp + size + hsize, hsize);
+ cy = mpn_add_n (prodp + size, prodp + size, prodp + size + hsize, hsize);
/*** Add product M (if NEGFLG M is a negative number). */
- cy -= __mpn_sub_n (prodp + hsize, prodp + hsize, tspace, size);
+ cy -= mpn_sub_n (prodp + hsize, prodp + hsize, tspace, size);
/*** Product L. ________________ ________________
|________________||____U0 x U0_____| */
@@ -352,53 +345,56 @@ ____mpn_sqr_n (prodp, up, size, tspace)
/*** Add/copy Product L (twice). */
- cy += __mpn_add_n (prodp + hsize, prodp + hsize, tspace, size);
+ cy += mpn_add_n (prodp + hsize, prodp + hsize, tspace, size);
if (cy)
- __mpn_add_1 (prodp + hsize + size, prodp + hsize + size, hsize, cy);
+ mpn_add_1 (prodp + hsize + size, prodp + hsize + size, hsize, cy);
MPN_COPY (prodp, tspace, hsize);
- cy = __mpn_add_n (prodp + hsize, prodp + hsize, tspace + hsize, hsize);
+ cy = mpn_add_n (prodp + hsize, prodp + hsize, tspace + hsize, hsize);
if (cy)
- __mpn_add_1 (prodp + size, prodp + size, size, 1);
+ mpn_add_1 (prodp + size, prodp + size, size, 1);
}
}
/* This should be made into an inline function in gmp.h. */
inline void
#if __STDC__
-__mpn_mul_n (mp_ptr prodp, mp_srcptr up, mp_srcptr vp, mp_size_t size)
+mpn_mul_n (mp_ptr prodp, mp_srcptr up, mp_srcptr vp, mp_size_t size)
#else
-__mpn_mul_n (prodp, up, vp, size)
+mpn_mul_n (prodp, up, vp, size)
mp_ptr prodp;
mp_srcptr up;
mp_srcptr vp;
mp_size_t size;
#endif
{
+ TMP_DECL (marker);
+ TMP_MARK (marker);
if (up == vp)
{
if (size < KARATSUBA_THRESHOLD)
{
- ____mpn_sqr_n_basecase (prodp, up, size);
+ impn_sqr_n_basecase (prodp, up, size);
}
else
{
mp_ptr tspace;
- tspace = (mp_ptr) alloca (2 * size * BYTES_PER_MP_LIMB);
- ____mpn_sqr_n (prodp, up, size, tspace);
+ tspace = (mp_ptr) TMP_ALLOC (2 * size * BYTES_PER_MP_LIMB);
+ impn_sqr_n (prodp, up, size, tspace);
}
}
else
{
if (size < KARATSUBA_THRESHOLD)
{
- ____mpn_mul_n_basecase (prodp, up, vp, size);
+ impn_mul_n_basecase (prodp, up, vp, size);
}
else
{
mp_ptr tspace;
- tspace = (mp_ptr) alloca (2 * size * BYTES_PER_MP_LIMB);
- ____mpn_mul_n (prodp, up, vp, size, tspace);
+ tspace = (mp_ptr) TMP_ALLOC (2 * size * BYTES_PER_MP_LIMB);
+ impn_mul_n (prodp, up, vp, size, tspace);
}
}
+ TMP_FREE (marker);
}