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Get VectorVals from constant values.

This commit is contained in:
steve 2002-11-03 02:07:24 +00:00
parent 86032c0aa5
commit 6c67a64fc3
1 changed files with 47 additions and 1 deletions
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48
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 1.19 2002/08/12 01:35:08 steve Exp $"
#ident "$Id: vpi_const.cc,v 1.20 2002/11/03 02:07:24 steve Exp $"
#endif
# include "vpi_priv.h"
@ -335,6 +335,49 @@ static void binary_value(vpiHandle ref, p_vpi_value vp)
break;
}
case vpiVectorVal: {
unsigned int obit = 0;
unsigned hwid = (rfp->nbits - 1)/32 + 1;
char*rbuf = need_result_buf(hwid*sizeof(s_vpi_vecval), RBUF_VAL);
s_vpi_vecval *op = (p_vpi_vecval)rbuf;
vp->value.vector = op;
op->aval = op->bval = 0;
for (unsigned idx = 0 ; idx < rfp->nbits ; idx += 1) {
unsigned nibble = idx/4;
unsigned shift = 2 * (idx%4);
unsigned bit_val = (rfp->bits[nibble] >> shift) & 3;
switch (bit_val) {
case 0:
op->aval &= ~(1 << obit);
op->bval &= ~(1 << obit);
break;
case 1:
op->aval |= (1 << obit);
op->bval &= ~(1 << obit);
break;
case 2:
op->aval |= (1 << obit);
op->bval |= (1 << obit);
break;
case 3:
op->aval &= ~(1 << obit);
op->bval |= (1 << obit);
break;
}
obit++;
if (!(obit % 32)) {
op += 1;
if ((op - vp->value.vector) < (ptrdiff_t)hwid)
op->aval = op->bval = 0;
obit = 0;
}
}
break;
}
case vpiStringVal:
binary_vpiStringVal(rfp, vp);
break;
@ -514,6 +557,9 @@ vpiHandle vpip_make_dec_const(int value)
/*
* $Log: vpi_const.cc,v $
* Revision 1.20 2002/11/03 02:07:24 steve
* Get VectorVals from constant values.
*
* Revision 1.19 2002/08/12 01:35:08 steve
* conditional ident string using autoconfig.
*