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Use PartSelect/PV and VP to handle part selects through ports.

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This commit is contained in:
steve
2005-01-09 20:16:00 +00:00
parent 6c711ee4d8
commit 9e94afe399
12 changed files with 475 additions and 310 deletions
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tgt-vvp/vvp_scope.c
+30 -8
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@@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: vvp_scope.c,v 1.105 2004/12/29 23:52:09 steve Exp $"
#ident "$Id: vvp_scope.c,v 1.106 2005/01/09 20:16:01 steve Exp $"
#endif
# include "vvp_priv.h"
@@ -431,6 +431,7 @@ static const char* draw_net_input_drive(ivl_nexus_t nex, ivl_nexus_ptr_t nptr)
case IVL_LPM_RAM:
case IVL_LPM_ADD:
case IVL_LPM_CONCAT:
case IVL_LPM_SHIFTL:
case IVL_LPM_SHIFTR:
case IVL_LPM_SUB:
@@ -438,7 +439,8 @@ static const char* draw_net_input_drive(ivl_nexus_t nex, ivl_nexus_ptr_t nptr)
case IVL_LPM_DIVIDE:
case IVL_LPM_MOD:
case IVL_LPM_UFUNC:
case IVL_LPM_PART:
case IVL_LPM_PART_VP:
case IVL_LPM_PART_PV: /* NOTE: This is onlt a partial driver. */
if (ivl_lpm_q(lpm, 0) == nex) {
sprintf(result, "L_%p", lpm);
return result;
@@ -446,7 +448,6 @@ static const char* draw_net_input_drive(ivl_nexus_t nex, ivl_nexus_ptr_t nptr)
break;
case IVL_LPM_CONCAT:
case IVL_LPM_CMP_GE:
case IVL_LPM_CMP_GT:
case IVL_LPM_CMP_EQ:
@@ -1299,9 +1300,7 @@ static void draw_lpm_concat(ivl_lpm_t net)
/* XXXX For now, only handle concatenation of 4 values. */
assert(icnt <= 4);
fprintf(vvp_out, "L_%s.%s .concat [",
vvp_mangle_id(ivl_scope_name(ivl_lpm_scope(net))),
vvp_mangle_id(ivl_lpm_basename(net)));
fprintf(vvp_out, "L_%p .concat [", net);
for (idx = 0 ; idx < icnt ; idx += 1) {
ivl_nexus_t nex = ivl_lpm_data(net, idx);
@@ -1310,7 +1309,7 @@ static void draw_lpm_concat(ivl_lpm_t net)
}
for ( ; idx < 4 ; idx += 1)
fpritnf(vvp_out, " 0");
fprintf(vvp_out, " 0");
fprintf(vvp_out, "]");
@@ -1569,6 +1568,22 @@ static void draw_lpm_part(ivl_lpm_t net)
fprintf(vvp_out, ", %u, %u;\n", base, width);
}
/*
* Handle a PART SELECT PV device. Generate a .part/pv node that
* includes the part input, and the geometry of the part.
*/
static void draw_lpm_part_pv(ivl_lpm_t net)
{
unsigned width = ivl_lpm_width(net);
unsigned base = ivl_lpm_base(net);
unsigned signal_width = width_of_nexus(ivl_lpm_q(net,0));
fprintf(vvp_out, "L_%p .part/pv ", net);
draw_input_from_net(ivl_lpm_data(net, 0));
fprintf(vvp_out, ", %u, %u, %u;\n", base, width, signal_width);
}
static void draw_lpm_in_scope(ivl_lpm_t net)
{
switch (ivl_lpm_type(net)) {
@@ -1585,10 +1600,14 @@ static void draw_lpm_in_scope(ivl_lpm_t net)
draw_lpm_add(net);
return;
case IVL_LPM_PART:
case IVL_LPM_PART_VP:
draw_lpm_part(net);
return;
case IVL_LPM_PART_PV:
draw_lpm_part_pv(net);
return;
case IVL_LPM_CONCAT:
draw_lpm_concat(net);
return;
@@ -1743,6 +1762,9 @@ int draw_scope(ivl_scope_t net, ivl_scope_t parent)
/*
* $Log: vvp_scope.c,v $
* Revision 1.106 2005/01/09 20:16:01 steve
* Use PartSelect/PV and VP to handle part selects through ports.
*
* Revision 1.105 2004/12/29 23:52:09 steve
* Generate code for the .concat functors, from NetConcat objects.
* Generate C<> constants of correct widths for functor arguments.