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Generate code for fork/join statements.

This commit is contained in:
steve 2001-03-30 05:49:52 +00:00
parent 386958f9a0
commit b36b6d0ca0
6 changed files with 101 additions and 63 deletions
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10
ivl_target.h
View File

@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: ivl_target.h,v 1.38 2001/03/29 02:52:39 steve Exp $"
#ident "$Id: ivl_target.h,v 1.39 2001/03/30 05:49:52 steve Exp $"
#endif
#ifdef __cplusplus
@ -250,6 +250,7 @@ typedef enum ivl_statement_type_e {
IVL_ST_CONDIT,
IVL_ST_DELAY,
IVL_ST_DELAYX,
IVL_ST_FORK,
IVL_ST_STASK,
IVL_ST_TRIGGER,
IVL_ST_WAIT,
@ -671,9 +672,9 @@ extern ivl_statement_type_t ivl_statement_type(ivl_statement_t net);
* statement types can be passed to the function.
*/
/* IVL_ST_BLOCK */
/* IVL_ST_BLOCK, IVL_ST_FORK */
extern unsigned ivl_stmt_block_count(ivl_statement_t net);
/* IVL_ST_BLOCK */
/* IVL_ST_BLOCK, IVL_ST_FORK */
extern ivl_statement_t ivl_stmt_block_stmt(ivl_statement_t net, unsigned i);
/* IVL_ST_CONDIT */
extern ivl_expr_t ivl_stmt_cond_expr(ivl_statement_t net);
@ -720,6 +721,9 @@ _END_DECL
/*
* $Log: ivl_target.h,v $
* Revision 1.39 2001/03/30 05:49:52 steve
* Generate code for fork/join statements.
*
* Revision 1.38 2001/03/29 02:52:39 steve
* Add unary ~ operator to tgt-vvp.
*

26
t-dll-api.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-dll-api.cc,v 1.26 2001/03/29 03:47:38 steve Exp $"
#ident "$Id: t-dll-api.cc,v 1.27 2001/03/30 05:49:52 steve Exp $"
#endif
# include "t-dll.h"
@ -557,16 +557,27 @@ extern "C" ivl_statement_type_t ivl_statement_type(ivl_statement_t net)
extern "C" unsigned ivl_stmt_block_count(ivl_statement_t net)
{
assert(net->type_ == IVL_ST_BLOCK);
return net->u_.block_.nstmt_;
switch (net->type_) {
case IVL_ST_BLOCK:
case IVL_ST_FORK:
return net->u_.block_.nstmt_;
default:
assert(0);
return 0;
}
}
extern "C" ivl_statement_t ivl_stmt_block_stmt(ivl_statement_t net,
unsigned i)
{
assert(net->type_ == IVL_ST_BLOCK);
assert(i < net->u_.block_.nstmt_);
return net->u_.block_.stmt_ + i;
switch (net->type_) {
case IVL_ST_BLOCK:
case IVL_ST_FORK:
return net->u_.block_.stmt_ + i;
default:
assert(0);
return 0;
}
}
extern "C" ivl_expr_t ivl_stmt_cond_expr(ivl_statement_t net)
@ -716,6 +727,9 @@ extern "C" ivl_statement_t ivl_stmt_sub_stmt(ivl_statement_t net)
/*
* $Log: t-dll-api.cc,v $
* Revision 1.27 2001/03/30 05:49:52 steve
* Generate code for fork/join statements.
*
* Revision 1.26 2001/03/29 03:47:38 steve
* Behavioral trigger statements.
*

9
t-dll-proc.cc
View File

@ -18,7 +18,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: t-dll-proc.cc,v 1.14 2001/03/29 03:47:38 steve Exp $"
#ident "$Id: t-dll-proc.cc,v 1.15 2001/03/30 05:49:52 steve Exp $"
#endif
# include "target.h"
@ -152,7 +152,9 @@ bool dll_target::proc_block(const NetBlock*net)
it, so fill in the block fields of the existing statement,
and generate the contents for the statement array. */
stmt_cur_->type_ = IVL_ST_BLOCK;
stmt_cur_->type_ = (net->type() == NetBlock::SEQU)
? IVL_ST_BLOCK
: IVL_ST_FORK;
stmt_cur_->u_.block_.nstmt_ = count;
stmt_cur_->u_.block_.stmt_ = (struct ivl_statement_s*)
calloc(count, sizeof(struct ivl_statement_s));
@ -356,6 +358,9 @@ void dll_target::proc_while(const NetWhile*net)
/*
* $Log: t-dll-proc.cc,v $
* Revision 1.15 2001/03/30 05:49:52 steve
* Generate code for fork/join statements.
*
* Revision 1.14 2001/03/29 03:47:38 steve
* Behavioral trigger statements.
*

7
t-dll.h
View File

@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: t-dll.h,v 1.26 2001/03/29 02:52:39 steve Exp $"
#ident "$Id: t-dll.h,v 1.27 2001/03/30 05:49:52 steve Exp $"
#endif
# include "target.h"
@ -341,7 +341,7 @@ struct ivl_statement_s {
ivl_expr_t rval_;
} assign_;
struct { /* IVL_ST_BLOCK */
struct { /* IVL_ST_BLOCK, IVL_ST_FORK */
struct ivl_statement_s*stmt_;
unsigned nstmt_;
} block_;
@ -387,6 +387,9 @@ struct ivl_statement_s {
/*
* $Log: t-dll.h,v $
* Revision 1.27 2001/03/30 05:49:52 steve
* Generate code for fork/join statements.
*
* Revision 1.26 2001/03/29 02:52:39 steve
* Add unary ~ operator to tgt-vvp.
*

16
tgt-stub/stub.c
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: stub.c,v 1.31 2001/03/29 02:52:39 steve Exp $"
#ident "$Id: stub.c,v 1.32 2001/03/30 05:49:52 steve Exp $"
#endif
/*
@ -187,6 +187,17 @@ static void show_statement(ivl_statement_t net, unsigned ind)
show_statement(ivl_stmt_sub_stmt(net), ind+2);
break;
case IVL_ST_FORK: {
unsigned cnt = ivl_stmt_block_count(net);
fprintf(out, "%*sfork\n", ind, "");
for (idx = 0 ; idx < cnt ; idx += 1) {
ivl_statement_t cur = ivl_stmt_block_stmt(net, idx);
show_statement(cur, ind+4);
}
fprintf(out, "%*sjoin\n", ind, "");
break;
}
case IVL_ST_NOOP:
fprintf(out, "%*s/* noop */;\n", ind, "");
break;
@ -449,6 +460,9 @@ DECLARE_CYGWIN_DLL(DllMain);
/*
* $Log: stub.c,v $
* Revision 1.32 2001/03/30 05:49:52 steve
* Generate code for fork/join statements.
*
* Revision 1.31 2001/03/29 02:52:39 steve
* Add unary ~ operator to tgt-vvp.
*

96
tgt-vvp/vvp_process.c
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT)
#ident "$Id: vvp_process.c,v 1.11 2001/03/29 03:47:38 steve Exp $"
#ident "$Id: vvp_process.c,v 1.12 2001/03/30 05:49:53 steve Exp $"
#endif
# include "vvp_priv.h"
@ -185,6 +185,44 @@ static int show_stmt_delay(ivl_statement_t net)
return rc;
}
static int show_stmt_fork(ivl_statement_t net)
{
unsigned idx;
int rc = 0;
static int transient_id = 0;
unsigned cnt = ivl_stmt_block_count(net);
int out = transient_id++;
/* Draw a fork statement for all but one of the threads of the
fork/join. Send the threads off to a bit of code where they
are implemented. */
for (idx = 0 ; idx < cnt-1 ; idx += 1) {
fprintf(vvp_out, " %%fork t_%u;\n", transient_id+idx);
}
/* Draw code to execute the remaining thread in the current
thread, then generate enough joins to merge back together. */
rc += show_statement(ivl_stmt_block_stmt(net, cnt-1));
for (idx = 0 ; idx < cnt-1 ; idx += 1) {
fprintf(vvp_out, " %%join;\n");
}
fprintf(vvp_out, " %%jmp t_%u;\n", out);
for (idx = 0 ; idx < cnt-1 ; idx += 1) {
fprintf(vvp_out, "t_%u\n", transient_id+idx);
rc += show_statement(ivl_stmt_block_stmt(net, idx));
fprintf(vvp_out, " %%end;\n");
}
/* This is the label for the out. Use this to branck around
the implementations of all the child threads. */
fprintf(vvp_out, "t_%u\n", out);
return rc;
}
/*
* noop statements are implemented by doing nothing.
*/
@ -277,6 +315,10 @@ static int show_statement(ivl_statement_t net)
rc += show_stmt_delay(net);
break;
case IVL_ST_FORK:
rc += show_stmt_fork(net);
break;
case IVL_ST_NOOP:
rc += show_stmt_noop(net);
break;
@ -302,50 +344,7 @@ static int show_statement(ivl_statement_t net)
return rc;
}
#if 0
static void show_stmt_event_wait(ivl_statement_t net)
{
ivl_edge_type_t edge = ivl_stmt_edge(net);
ivl_nexus_t nex;
const char*estr = "";
assert(ivl_stmt_pins(net) == 1);
nex = ivl_stmt_pin(net, 0);
switch (edge) {
case IVL_EDGE_POS:
estr = "posedge";
break;
case IVL_EDGE_NEG:
estr = "negedge";
break;
case IVL_EDGE_ANY:
estr = "anyedge";
break;
}
fprintf(vvp_out, "L_%s .event %s, ", ivl_nexus_name(nex), estr);
draw_nexus_input(nex);
fprintf(vvp_out, ";\n");
}
#endif
#if 0
static void show_stmt_events(ivl_statement_t net)
{
switch (ivl_statement_type(net)) {
case IVL_ST_WAIT:
show_stmt_event_wait(net);
return;
case IVL_ST_DELAY:
show_stmt_events(ivl_stmt_sub_stmt(net));
return;
default:
return;
}
}
#endif
/*
* The process as a whole is surrounded by this code. We generate a
@ -361,11 +360,7 @@ int draw_process(ivl_process_t net, void*x)
local_count = 0;
fprintf(vvp_out, " .scope S_%s;\n", ivl_scope_name(scope));
#if 0
/* Show any .event statements that are needed to support this
thread. */
show_stmt_events(stmt);
#endif
/* Generate the entry label. Just give the thread a number so
that we ar certain the label is unique. */
fprintf(vvp_out, "T_%d\n", thread_count);
@ -399,6 +394,9 @@ int draw_process(ivl_process_t net, void*x)
/*
* $Log: vvp_process.c,v $
* Revision 1.12 2001/03/30 05:49:53 steve
* Generate code for fork/join statements.
*
* Revision 1.11 2001/03/29 03:47:38 steve
* Behavioral trigger statements.
*