luke
/
iverilog
mirror of https://github.com/steveicarus/iverilog.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Allow non-blocking assign to pad memory word with zeros.

This commit is contained in:
steve 2000-12-15 21:54:43 +00:00
parent d5eb3a2bad
commit 44131d4b16
2 changed files with 19 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
t-vvm.cc
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: t-vvm.cc,v 1.193 2000/12/15 21:40:26 steve Exp $"
#ident "$Id: t-vvm.cc,v 1.194 2000/12/15 21:54:43 steve Exp $"
#endif
# include <iostream>
@ -2660,7 +2660,10 @@ void target_vvm::proc_assign_mem_nb(const NetAssignMemNB*amem)
defn << " /* " << amem->get_line() << " */" << endl;
assert(mem->width() <= amem->rval()->expr_width());
/* Note here that the vvm_memory_t::assign_nb constructor will
pad the rval with St0 if it is not as wide as the memory
word. If this is not what is desired, then it should have
been fixed up by semantic analysis anyhow. */
defn << " (new vvm_memory_t::assign_nb(" << mangle(mem->name())
<< ", " << index << ".as_unsigned(), " << rval <<
@ -3410,6 +3413,9 @@ extern const struct target tgt_vvm = {
};
/*
* $Log: t-vvm.cc,v $
* Revision 1.194 2000/12/15 21:54:43 steve
* Allow non-blocking assign to pad memory word with zeros.
*
* Revision 1.193 2000/12/15 21:40:26 steve
* concatenation as parameter to system tasks. PR#64)
*

13
vvm/vvm_memory.cc
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: vvm_memory.cc,v 1.1 2000/12/15 20:05:16 steve Exp $"
#ident "$Id: vvm_memory.cc,v 1.2 2000/12/15 21:54:43 steve Exp $"
#endif
# include "vvm_signal.h"
@ -80,8 +80,14 @@ vvm_memory_t::assign_nb::assign_nb(vvm_memory_t&m, unsigned i,
const vvm_bitset_t&v)
: mem_(m), index_(i), bits_(new vpip_bit_t[m.width]), val_(bits_, m.width)
{
for (unsigned idx = 0 ; idx < m.width ; idx += 1)
unsigned top = m.width;
if (top > v.nbits)
top = v.nbits;
for (unsigned idx = 0 ; idx < top ; idx += 1)
val_[idx] = v[idx];
for (unsigned idx = top ; idx < m.width ; idx += 1)
val_[idx] = St0;
}
@ -97,6 +103,9 @@ void vvm_memory_t::assign_nb::event_function()
/*
* $Log: vvm_memory.cc,v $
* Revision 1.2 2000/12/15 21:54:43 steve
* Allow non-blocking assign to pad memory word with zeros.
*
* Revision 1.1 2000/12/15 20:05:16 steve
* Fix memory access in vvm. (PR#70)
*