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The <= operator takes different width operands.

This commit is contained in:
steve 1999-09-23 04:39:52 +00:00
parent 1a21d2fe9d
commit 64cc38f0eb
1 changed files with 18 additions and 3 deletions
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21
vvm/vvm_func.h
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@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/ */
#if !defined(WINNT) #if !defined(WINNT)
#ident "$Id: vvm_func.h,v 1.8 1999/09/11 04:43:17 steve Exp $" #ident "$Id: vvm_func.h,v 1.9 1999/09/23 04:39:52 steve Exp $"
#endif #endif
# include "vvm.h" # include "vvm.h"
@ -308,16 +308,28 @@ vvm_bitset_t<1> vvm_binop_lt(const vvm_bitset_t<LW>&l,
return result; return result;
} }
/*
* The <= operator takes operands of natural width and returns a
* single bit. The result is V1 if l <= r, otherwise V0;
*/
template <unsigned LW, unsigned RW> template <unsigned LW, unsigned RW>
vvm_bitset_t<1> vvm_binop_le(const vvm_bitset_t<LW>&l, vvm_bitset_t<1> vvm_binop_le(const vvm_bitset_t<LW>&l,
const vvm_bitset_t<RW>&r) const vvm_bitset_t<RW>&r)
{ {
assert(LW == RW);
vvm_bitset_t<1> result; vvm_bitset_t<1> result;
result[0] = V1; result[0] = V1;
for (unsigned idx = 0 ; idx < LW ; idx += 1) const unsigned common = (LW < RW)? LW : RW;
for (unsigned idx = 0 ; idx < common ; idx += 1)
result[0] = less_with_cascade(l[idx], r[idx], result[0]); result[0] = less_with_cascade(l[idx], r[idx], result[0]);
if (LW > RW) {
for (unsigned idx = LW ; idx < RW ; idx += 1)
if (l[idx] != V0) {
result[0] = V0;
break;
}
}
return result; return result;
} }
@ -357,6 +369,9 @@ vvm_bitset_t<W> vvm_ternary(vvm_bit_t c, const vvm_bitset_t<W>&t,
/* /*
* $Log: vvm_func.h,v $ * $Log: vvm_func.h,v $
* Revision 1.9 1999/09/23 04:39:52 steve
* The <= operator takes different width operands.
*
* Revision 1.8 1999/09/11 04:43:17 steve * Revision 1.8 1999/09/11 04:43:17 steve
* Support ternary and <= operators in vvm. * Support ternary and <= operators in vvm.
* *