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Add support for the vpiReset sim control.

This commit is contained in:
steve 2001-03-19 01:55:38 +00:00
parent d8ef63efd1
commit f8c3b84f68
4 changed files with 72 additions and 15 deletions
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30
vvp/schedule.cc
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/ */
#if !defined(WINNT) #if !defined(WINNT)
#ident "$Id: schedule.cc,v 1.2 2001/03/11 22:42:11 steve Exp $" #ident "$Id: schedule.cc,v 1.3 2001/03/19 01:55:38 steve Exp $"
#endif #endif
# include "schedule.h" # include "schedule.h"
@ -43,8 +43,27 @@ const unsigned TYPE_THREAD = 0;
const unsigned TYPE_PROP = 1; const unsigned TYPE_PROP = 1;
const unsigned TYPE_ASSIGN = 2; const unsigned TYPE_ASSIGN = 2;
/*
* This is the head of the list of pending events.
*/
static struct event_s* list = 0; static struct event_s* list = 0;
/*
* This flag is true until a VPI task or function finishes the
* simulation.
*/
static bool schedule_runnable = true;
void schedule_finish(int)
{
schedule_runnable = false;
}
bool schedule_finished(void)
{
return !schedule_runnable;
}
static void schedule_event_(struct event_s*cur) static void schedule_event_(struct event_s*cur)
{ {
cur->last = cur; cur->last = cur;
@ -136,7 +155,7 @@ void schedule_simulate(void)
{ {
schedule_time = 0; schedule_time = 0;
while (list) { while (schedule_runnable && list) {
/* Pull the first item off the list. Fixup the last /* Pull the first item off the list. Fixup the last
pointer in the next cell, if necessary. */ pointer in the next cell, if necessary. */
@ -148,7 +167,7 @@ void schedule_simulate(void)
} else { } else {
schedule_time += cur->delay; schedule_time += cur->delay;
printf("TIME: %u\n", schedule_time); //printf("TIME: %u\n", schedule_time);
} }
switch (cur->type) { switch (cur->type) {
@ -157,7 +176,7 @@ void schedule_simulate(void)
break; break;
case TYPE_PROP: case TYPE_PROP:
printf("Propagate %p\n", cur->fun); //printf("Propagate %p\n", cur->fun);
functor_propagate(cur->fun); functor_propagate(cur->fun);
break; break;
@ -173,6 +192,9 @@ void schedule_simulate(void)
/* /*
* $Log: schedule.cc,v $ * $Log: schedule.cc,v $
* Revision 1.3 2001/03/19 01:55:38 steve
* Add support for the vpiReset sim control.
*
* Revision 1.2 2001/03/11 22:42:11 steve * Revision 1.2 2001/03/11 22:42:11 steve
* Functor values and propagation. * Functor values and propagation.
* *

21
vvp/schedule.h
View File

@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/ */
#if !defined(WINNT) #if !defined(WINNT)
#ident "$Id: schedule.h,v 1.2 2001/03/11 22:42:11 steve Exp $" #ident "$Id: schedule.h,v 1.3 2001/03/19 01:55:38 steve Exp $"
#endif #endif
# include "vthread.h" # include "vthread.h"
@ -47,12 +47,29 @@ extern void schedule_assign(vvp_ipoint_t fun, unsigned char val,
unsigned delay); unsigned delay);
/* /*
* This runs the simulator. It runs until all the functors run out. * This runs the simulator. It runs until all the functors run out or
* the simulation is otherwise finished.
*/ */
extern void schedule_simulate(void); extern void schedule_simulate(void);
/*
* This function is the equivilent of the $finish system task. It
* tells the simulator that simulation is done, the current thread
* should be stopped, all remaining events abandoned and the
* schedule_simulate() function will return.
*
* The schedule_finished() function will return true if the
* schedule_finish() function has been called.
*/
extern void schedule_finish(int rc);
extern bool schedule_finished(void);
/* /*
* $Log: schedule.h,v $ * $Log: schedule.h,v $
* Revision 1.3 2001/03/19 01:55:38 steve
* Add support for the vpiReset sim control.
*
* Revision 1.2 2001/03/11 22:42:11 steve * Revision 1.2 2001/03/11 22:42:11 steve
* Functor values and propagation. * Functor values and propagation.
* *

13
vvp/vpi_priv.cc
View File

@ -17,10 +17,11 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/ */
#if !defined(WINNT) #if !defined(WINNT)
#ident "$Id: vpi_priv.cc,v 1.1 2001/03/16 01:44:34 steve Exp $" #ident "$Id: vpi_priv.cc,v 1.2 2001/03/19 01:55:38 steve Exp $"
#endif #endif
# include "vpi_priv.h" # include "vpi_priv.h"
# include "schedule.h"
# include <stdio.h> # include <stdio.h>
# include <stdarg.h> # include <stdarg.h>
# include <assert.h> # include <assert.h>
@ -148,11 +149,21 @@ int vpi_remove_cb(vpiHandle ref)
void vpi_sim_control(int operation, ...) void vpi_sim_control(int operation, ...)
{ {
switch (operation) {
case vpiFinish:
schedule_finish(0);
break;
default:
assert(0); assert(0);
}
} }
/* /*
* $Log: vpi_priv.cc,v $ * $Log: vpi_priv.cc,v $
* Revision 1.2 2001/03/19 01:55:38 steve
* Add support for the vpiReset sim control.
*
* Revision 1.1 2001/03/16 01:44:34 steve * Revision 1.1 2001/03/16 01:44:34 steve
* Add structures for VPI support, and all the %vpi_call * Add structures for VPI support, and all the %vpi_call
* instruction. Get linking of VPI modules to work. * instruction. Get linking of VPI modules to work.

21
vvp/vthread.cc
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/ */
#if !defined(WINNT) #if !defined(WINNT)
#ident "$Id: vthread.cc,v 1.4 2001/03/16 01:44:34 steve Exp $" #ident "$Id: vthread.cc,v 1.5 2001/03/19 01:55:38 steve Exp $"
#endif #endif
# include "vthread.h" # include "vthread.h"
@ -55,6 +55,10 @@ void vthread_run(vthread_t thr)
thr->pc += 1; thr->pc += 1;
assert(cp->opcode); assert(cp->opcode);
/* Run the opcode implementation. If the execution of
the opcode returns false, then the thread is meant to
be paused, so break out of the loop. */
bool rc = (cp->opcode)(thr, cp); bool rc = (cp->opcode)(thr, cp);
if (rc == false) if (rc == false)
return; return;
@ -63,7 +67,7 @@ void vthread_run(vthread_t thr)
bool of_ASSIGN(vthread_t thr, vvp_code_t cp) bool of_ASSIGN(vthread_t thr, vvp_code_t cp)
{ {
printf("thread %p: %%assign\n", thr); //printf("thread %p: %%assign\n", thr);
unsigned char bit_val = 3; unsigned char bit_val = 3;
if ((cp->bit_idx2 & ~0x3) == 0x0) { if ((cp->bit_idx2 & ~0x3) == 0x0) {
@ -79,14 +83,14 @@ bool of_ASSIGN(vthread_t thr, vvp_code_t cp)
bool of_DELAY(vthread_t thr, vvp_code_t cp) bool of_DELAY(vthread_t thr, vvp_code_t cp)
{ {
printf("thread %p: %%delay %lu\n", thr, cp->number); //printf("thread %p: %%delay %lu\n", thr, cp->number);
schedule_vthread(thr, cp->number); schedule_vthread(thr, cp->number);
return false; return false;
} }
bool of_END(vthread_t thr, vvp_code_t cp) bool of_END(vthread_t thr, vvp_code_t cp)
{ {
printf("thread %p: %%end\n", thr); //printf("thread %p: %%end\n", thr);
return false; return false;
} }
@ -97,7 +101,7 @@ bool of_NOOP(vthread_t thr, vvp_code_t cp)
bool of_SET(vthread_t thr, vvp_code_t cp) bool of_SET(vthread_t thr, vvp_code_t cp)
{ {
printf("thread %p: %%set %u, %u\n", thr, cp->iptr, cp->bit_idx1); //printf("thread %p: %%set %u, %u\n", thr, cp->iptr, cp->bit_idx1);
unsigned char bit_val = 3; unsigned char bit_val = 3;
if ((cp->bit_idx1 & ~0x3) == 0x0) { if ((cp->bit_idx1 & ~0x3) == 0x0) {
@ -114,13 +118,16 @@ bool of_SET(vthread_t thr, vvp_code_t cp)
bool of_VPI_CALL(vthread_t thr, vvp_code_t cp) bool of_VPI_CALL(vthread_t thr, vvp_code_t cp)
{ {
printf("thread %p: %%vpi_call\n", thr); // printf("thread %p: %%vpi_call\n", thr);
vpip_execute_vpi_call(cp->handle); vpip_execute_vpi_call(cp->handle);
return true; return schedule_finished()? false : true;
} }
/* /*
* $Log: vthread.cc,v $ * $Log: vthread.cc,v $
* Revision 1.5 2001/03/19 01:55:38 steve
* Add support for the vpiReset sim control.
*
* Revision 1.4 2001/03/16 01:44:34 steve * Revision 1.4 2001/03/16 01:44:34 steve
* Add structures for VPI support, and all the %vpi_call * Add structures for VPI support, and all the %vpi_call
* instruction. Get linking of VPI modules to work. * instruction. Get linking of VPI modules to work.