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Do not schedule a new event if the previous event has the same value.

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If the previous event has exactly the same value as this event then
we do not add this event to the event queue.
This commit is contained in:
Cary R
2009-08-18 14:10:45 -07:00
committed by Stephen Williams
parent e44247f82c
commit 2e820ca6f0
2 changed files with 57 additions and 5 deletions
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vvp/delay.h
+6
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@@ -71,6 +71,7 @@ class vvp_delay_t {
*/
class vvp_fun_delay : public vvp_net_fun_t, private vvp_gen_event_s {
enum delay_type_t {UNKNOWN_DELAY, VEC4_DELAY, VEC8_DELAY, REAL_DELAY};
struct event_ {
event_(vvp_time64_t s) : sim_time(s) { }
void (vvp_fun_delay::*run_run_ptr)(struct vvp_fun_delay::event_*cur);
@@ -103,6 +104,7 @@ class vvp_fun_delay : public vvp_net_fun_t, private vvp_gen_event_s {
private:
vvp_net_t*net_;
vvp_delay_t delay_;
delay_type_t type_;
bool initial_; // Indicates if the value is still the initial value.
vvp_vector4_t cur_vec4_;
@@ -133,6 +135,10 @@ class vvp_fun_delay : public vvp_net_fun_t, private vvp_gen_event_s {
list_->next = cur->next;
return cur;
}
bool clean_pulse_events_(vvp_time64_t use_delay, const vvp_vector4_t&bit);
bool clean_pulse_events_(vvp_time64_t use_delay, const vvp_vector8_t&bit);
bool clean_pulse_events_(vvp_time64_t use_delay, double bit);
// Delete this when done!
void clean_pulse_events_(vvp_time64_t use_delay);
};