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Make rules consistent with token stream.

This commit is contained in:
steve 2000-05-13 22:46:22 +00:00
parent 3c9902d93e
commit cca036c4a8
1 changed files with 10 additions and 7 deletions
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17
syn-rules.y
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@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: syn-rules.y,v 1.1 2000/05/13 20:55:47 steve Exp $"
#ident "$Id: syn-rules.y,v 1.2 2000/05/13 22:46:22 steve Exp $"
#endif
/*
@ -77,16 +77,14 @@ start
code generators generally implement that as an array of
flip-flops. */
: S_ALWAYS '@' '(' S_EVENT ')' S_ASSIGN
: S_ALWAYS '@' '(' S_EVENT ')' S_ASSIGN ';'
{ make_DFF_CE(des_, $1->top, $2->evwait, $4->event,
0, $6->assign);
des_->delete_process($1->top);
}
| S_ALWAYS '@' '(' S_EVENT ')' S_IF S_EXPR S_ASSIGN ';'
| S_ALWAYS '@' '(' S_EVENT ')' S_IF S_EXPR S_ASSIGN ';' ';'
{ make_DFF_CE(des_, $1->top, $2->evwait, $4->event,
$7->expr, $8->assign);
des_->delete_process($1->top);
}
@ -107,14 +105,13 @@ start
| S_ALWAYS '@' '(' S_EVENT ')' S_ASSIGN_MEM ';'
{ make_RAM_CE(des_, $1->top, $2->evwait, $4->event,
0, $6->assign_mem);
des_->delete_process($1->top);
}
| S_ALWAYS '@' '(' S_EVENT ')' S_IF S_EXPR S_ASSIGN_MEM ';' ';'
{ make_RAM_CE(des_, $1->top, $2->evwait, $4->event,
$7->expr, $8->assign_mem);
des_->delete_process($1->top);
}
;
%%
@ -143,6 +140,7 @@ static void make_DFF_CE(Design*des, NetProcTop*top, NetEvWait*wclk,
ff->attribute("Clock:LPM_Polarity", "INVERT");
des->add_node(ff);
des->delete_process(top);
}
static void make_RAM_CE(Design*des, NetProcTop*top, NetEvWait*wclk,
@ -173,6 +171,7 @@ static void make_RAM_CE(Design*des, NetProcTop*top, NetEvWait*wclk,
des_->add_node(ram);
des->add_node(ram);
des->delete_process(top);
}
static syn_token_t*first_ = 0;
@ -197,6 +196,10 @@ struct tokenize : public proc_match_t {
cur->next_ = 0;
last_->next_ = cur;
last_ = cur;
if (dynamic_cast<NetEConst*>(dev->rval()))
fprintf(stderr, "XXXX constant assignment.\n");
return 0;
}