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Fixup to include right shift support.

This commit is contained in:
steve 1999-11-15 00:42:31 +00:00
parent 513ade9b95
commit e98083af15
1 changed files with 26 additions and 12 deletions
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38
vvm/vvm_gates.h
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@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT)
#ident "$Id: vvm_gates.h,v 1.22 1999/11/14 23:43:46 steve Exp $"
#ident "$Id: vvm_gates.h,v 1.23 1999/11/15 00:42:31 steve Exp $"
#endif
# include "vvm.h"
@ -175,11 +175,14 @@ template <unsigned WIDTH, unsigned WDIST> class vvm_clshift {
{ dist_[idx] = val;
calculate_dist_();
}
void init_Direction(vpip_bit_t val)
{ dir_ = val; }
void set_Data(vvm_simulation*sim, unsigned idx, vpip_bit_t val)
{ if (data_[idx] == val) return;
data_[idx] = val;
if ((dist_val_ + idx) >= WIDTH) return;
if ((dist_val_ + idx) < 0) return;
vvm_out_event::action_t out = out_[dist_val_+idx];
if (out == 0) return;
vvm_event*ev = new vvm_out_event(sim, val, out);
@ -193,6 +196,13 @@ template <unsigned WIDTH, unsigned WDIST> class vvm_clshift {
compute_(sim);
}
void set_Direction(vvm_simulation*sim, unsigned, vpip_bit_t val)
{ if (dir_ == val) return;
dir_ = val;
calculate_dist_();
compute_(sim);
}
void config_rout(unsigned idx, vvm_out_event::action_t o)
{ out_[idx] = o;
}
@ -202,10 +212,10 @@ template <unsigned WIDTH, unsigned WDIST> class vvm_clshift {
vpip_bit_t data_[WIDTH];
vpip_bit_t dist_[WDIST];
vvm_out_event::action_t out_[WIDTH];
unsigned dist_val_;
int dist_val_;
void calculate_dist_()
{ unsigned tmp = 0;
{ int tmp = 0;
for (unsigned idx = 0 ; idx < WDIST ; idx += 1)
switch (dist_[idx]) {
case V0:
@ -216,7 +226,10 @@ template <unsigned WIDTH, unsigned WDIST> class vvm_clshift {
default:
tmp = WIDTH;
}
if (tmp > WIDTH) tmp = WIDTH;
if (tmp > WIDTH)
tmp = WIDTH;
else if (dir_ == V1)
tmp = -tmp;
dist_val_ = tmp;
}
@ -230,15 +243,13 @@ template <unsigned WIDTH, unsigned WDIST> class vvm_clshift {
}
return;
}
for (unsigned idx = 0 ; idx < dist_val_ ; idx += 1) {
for (int idx = 0 ; idx < WIDTH ; idx += 1) {
if (out_[idx] == 0) continue;
ev = new vvm_out_event(sim, V0, out_[idx]);
sim->active_event(ev);
}
for (unsigned idx = dist_val_ ; idx < WIDTH ; idx += 1) {
if (out_[idx] == 0) continue;
ev = new vvm_out_event(sim, data_[idx-dist_val_],
out_[idx]);
vpip_bit_t val;
if ((idx-dist_val_) >= WIDTH) val = V0;
else if ((idx-dist_val_) < 0) val = V0;
else val = data_[idx-dist_val_];
ev = new vvm_out_event(sim, val, out_[idx]);
sim->active_event(ev);
}
}
@ -920,6 +931,9 @@ template <unsigned WIDTH> class vvm_pevent {
/*
* $Log: vvm_gates.h,v $
* Revision 1.23 1999/11/15 00:42:31 steve
* Fixup to include right shift support.
*
* Revision 1.22 1999/11/14 23:43:46 steve
* Support combinatorial comparators.
*