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More carful about shifting beyond word size.

This commit is contained in:
steve 2003-03-10 19:14:27 +00:00
parent f78e014022
commit aff8faf44d
1 changed files with 8 additions and 2 deletions
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10
vvp/vpi_const.cc
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@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: vpi_const.cc,v 1.22 2003/02/24 06:35:45 steve Exp $"
#ident "$Id: vpi_const.cc,v 1.23 2003/03/10 19:14:27 steve Exp $"
#endif
# include "vpi_priv.h"
@ -335,8 +335,11 @@ static void binary_value(vpiHandle ref, p_vpi_value vp)
case vpiIntVal: {
unsigned val = 0;
unsigned bit_val = 0;
unsigned bit_limit = rfp->nbits;
if (bit_limit > 8*sizeof(val))
bit_limit = 8*sizeof(val);
for (unsigned idx = 0 ; idx < rfp->nbits ; idx += 1) {
for (unsigned idx = 0 ; idx < bit_limit ; idx += 1) {
unsigned nibble = idx/4;
unsigned shift = 2 * (idx%4);
bit_val = (rfp->bits[nibble] >> shift) & 3;
@ -582,6 +585,9 @@ vpiHandle vpip_make_dec_const(int value)
/*
* $Log: vpi_const.cc,v $
* Revision 1.23 2003/03/10 19:14:27 steve
* More carful about shifting beyond word size.
*
* Revision 1.22 2003/02/24 06:35:45 steve
* Interactive task calls take string arguments.
*