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Fix bit operations. Test them (a bit) better.
[u/mdw/catacomb]
/
f-prime.c
diff --git
a/f-prime.c
b/f-prime.c
index
1a7b9e8
..
a9673b8
100644
(file)
--- a/
f-prime.c
+++ b/
f-prime.c
@@
-1,6
+1,6
@@
/* -*-c-*-
*
/* -*-c-*-
*
- * $Id: f-prime.c,v 1.
1 2001/04/29 18:12:33
mdw Exp $
+ * $Id: f-prime.c,v 1.
2 2002/01/13 13:48:44
mdw Exp $
*
* Prime fields with Montgomery arithmetic
*
*
* Prime fields with Montgomery arithmetic
*
@@
-30,6
+30,9
@@
/*----- Revision history --------------------------------------------------*
*
* $Log: f-prime.c,v $
/*----- Revision history --------------------------------------------------*
*
* $Log: f-prime.c,v $
+ * Revision 1.2 2002/01/13 13:48:44 mdw
+ * Further progress.
+ *
* Revision 1.1 2001/04/29 18:12:33 mdw
* Prototype version.
*
* Revision 1.1 2001/04/29 18:12:33 mdw
* Prototype version.
*
@@
-72,6
+75,12
@@
static mp *fout(field *ff, mp *d, mp *x)
return (mpmont_reduce(&f->mm, d, x));
}
return (mpmont_reduce(&f->mm, d, x));
}
+static mp *fneg(field *ff, mp *d, mp *x)
+{
+ fctx *f = (fctx *)ff;
+ return (mp_sub(d, f->mm.m, x));
+}
+
static mp *fadd(field *ff, mp *d, mp *x, mp *y)
{
return (mp_add(d, x, y));
static mp *fadd(field *ff, mp *d, mp *x, mp *y)
{
return (mp_add(d, x, y));
@@
-137,7
+146,7
@@
static mp *fsqrt(field *ff, mp *d, mp *x)
static field_ops fops = {
fdestroy,
fin, fout,
static field_ops fops = {
fdestroy,
fin, fout,
- fadd, fsub, fmul, fsqr, finv, freduce,
+ f
neg, f
add, fsub, fmul, fsqr, finv, freduce,
fdbl, ftpl, fsqrt
};
fdbl, ftpl, fsqrt
};