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Support DesSTrVal for binary constants.

This commit is contained in:
steve 2002-01-15 03:21:18 +00:00
parent ec070ee65b
commit a697157257
1 changed files with 58 additions and 1 deletions
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59
vvp/vpi_const.cc
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@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT)
#ident "$Id: vpi_const.cc,v 1.7 2001/09/15 18:27:05 steve Exp $"
#ident "$Id: vpi_const.cc,v 1.8 2002/01/15 03:21:18 steve Exp $"
#endif
# include "vpi_priv.h"
@ -87,12 +87,22 @@ vpiHandle vpip_make_string_const(char*text)
static int binary_get(int code, vpiHandle ref)
{
struct __vpiBinaryConst*rfp = (struct __vpiBinaryConst*)ref;
assert(ref->vpi_type->type_code == vpiConstant);
switch (code) {
case vpiConstType:
return vpiBinaryConst;
case vpiSigned: // FIXME: Need to get signed flag right.
return 0;
case vpiSize:
return rfp->nbits;
default:
fprintf(stderr, "vvp error: get %d not supported "
"by vpiBinaryConst\n", code);
assert(0);
return 0;
}
@ -109,6 +119,7 @@ static void binary_value(vpiHandle ref, p_vpi_value vp)
case vpiObjTypeVal:
case vpiBinStrVal:
assert(rfp->nbits < sizeof buf);
for (unsigned idx = 0 ; idx < rfp->nbits ; idx += 1) {
unsigned nibble = idx/4;
unsigned shift = 2 * (idx%4);
@ -121,6 +132,49 @@ static void binary_value(vpiHandle ref, p_vpi_value vp)
vp->format = vpiBinStrVal;
break;
case vpiDecStrVal: {
unsigned long val = 0;
unsigned count_x = 0, count_z = 0;
vp->value.str = buf;
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:
break;
case 1:
val |= 1 << idx;
break;
case 2:
count_x += 1;
break;
case 3:
count_z += 1;
break;
}
}
if (count_z == rfp->nbits) {
sprintf(buf, "z");
} else if (count_x == rfp->nbits) {
sprintf(buf, "x");
} else if ((count_z > 0) && (count_x == 0)) {
sprintf(buf, "Z");
} else if (count_x > 0) {
sprintf(buf, "X");
} else {
sprintf(buf, "%lu", val);
}
break;
}
case vpiIntVal: {
unsigned val = 0;
@ -197,6 +251,9 @@ vpiHandle vpip_make_binary_const(unsigned wid, char*bits)
/*
* $Log: vpi_const.cc,v $
* Revision 1.8 2002/01/15 03:21:18 steve
* Support DesSTrVal for binary constants.
*
* Revision 1.7 2001/09/15 18:27:05 steve
* Make configure detect malloc.h
*