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

Add support for the delayx opcode.

This commit is contained in:
steve 2001-07-19 04:40:55 +00:00
parent 83de770387
commit e773ccfe49
4 changed files with 31 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
vvp/codes.h
View File

@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT)
#ident "$Id: codes.h,v 1.31 2001/06/30 21:07:26 steve Exp $"
#ident "$Id: codes.h,v 1.32 2001/07/19 04:40:55 steve Exp $"
#endif
@ -46,6 +46,7 @@ extern bool of_CMPU(vthread_t thr, vvp_code_t code);
extern bool of_CMPX(vthread_t thr, vvp_code_t code);
extern bool of_CMPZ(vthread_t thr, vvp_code_t code);
extern bool of_DELAY(vthread_t thr, vvp_code_t code);
extern bool of_DELAYX(vthread_t thr, vvp_code_t code);
extern bool of_DISABLE(vthread_t thr, vvp_code_t code);
extern bool of_END(vthread_t thr, vvp_code_t code);
extern bool of_FORK(vthread_t thr, vvp_code_t code);
@ -136,6 +137,9 @@ extern vvp_code_t codespace_index(vvp_cpoint_t ptr);
/*
* $Log: codes.h,v $
* Revision 1.32 2001/07/19 04:40:55 steve
* Add support for the delayx opcode.
*
* Revision 1.31 2001/06/30 21:07:26 steve
* Support non-const right shift (unsigned).
*

6
vvp/compile.cc
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT)
#ident "$Id: compile.cc,v 1.87 2001/07/11 04:43:57 steve Exp $"
#ident "$Id: compile.cc,v 1.88 2001/07/19 04:40:55 steve Exp $"
#endif
# include "arith.h"
@ -87,6 +87,7 @@ const static struct opcode_table_s opcode_table[] = {
{ "%cmp/x", of_CMPX, 3, {OA_BIT1, OA_BIT2, OA_NUMBER} },
{ "%cmp/z", of_CMPZ, 3, {OA_BIT1, OA_BIT2, OA_NUMBER} },
{ "%delay", of_DELAY, 1, {OA_NUMBER, OA_NONE, OA_NONE} },
{ "%delayx", of_DELAYX, 1, {OA_NUMBER, OA_NONE, OA_NONE} },
{ "%end", of_END, 0, {OA_NONE, OA_NONE, OA_NONE} },
{ "%inv", of_INV, 2, {OA_BIT1, OA_BIT2, OA_NONE} },
{ "%ix/add", of_IX_ADD, 2, {OA_BIT1, OA_NUMBER, OA_NONE} },
@ -1544,6 +1545,9 @@ vvp_ipoint_t debug_lookup_functor(const char*name)
/*
* $Log: compile.cc,v $
* Revision 1.88 2001/07/19 04:40:55 steve
* Add support for the delayx opcode.
*
* Revision 1.87 2001/07/11 04:43:57 steve
* support postpone of $systask parameters. (Stephan Boettcher)
*

8
vvp/opcodes.txt
View File

@ -1,7 +1,7 @@
/*
* Copyright (c) 2001 Stephen Williams (steve@icarus.com)
*
* $Id: opcodes.txt,v 1.25 2001/06/30 21:07:26 steve Exp $
* $Id: opcodes.txt,v 1.26 2001/07/19 04:40:55 steve Exp $
*/
@ -118,6 +118,12 @@ future to reschedule, and is >= 0. If the %delay is zero, then the
thread yields the processor for another thread, but will be resumed in
the current time step.
* %delayx <idx>
This is similar to the %delay opcode, except that the parameter
selects an index register, which contains the actual delay. This
supports run-time calculated delays.
* %disable <scope-label>
This instruction terminates threads that are part of a specific

15
vvp/vthread.cc
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT)
#ident "$Id: vthread.cc,v 1.48 2001/07/04 04:57:10 steve Exp $"
#ident "$Id: vthread.cc,v 1.49 2001/07/19 04:40:55 steve Exp $"
#endif
# include "vthread.h"
@ -539,6 +539,16 @@ bool of_DELAY(vthread_t thr, vvp_code_t cp)
return false;
}
bool of_DELAYX(vthread_t thr, vvp_code_t cp)
{
unsigned long delay;
assert(cp->number < 4);
delay = thr->index[cp->number];
schedule_vthread(thr, delay);
return false;
}
/*
* Implement the %disable instruction by scanning the target scope for
* all the target threads. Kill the target threads and wake up a
@ -1281,6 +1291,9 @@ bool of_ZOMBIE(vthread_t thr, vvp_code_t)
/*
* $Log: vthread.cc,v $
* Revision 1.49 2001/07/19 04:40:55 steve
* Add support for the delayx opcode.
*
* Revision 1.48 2001/07/04 04:57:10 steve
* Relax limit on behavioral subtraction.
*