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Handle multiple part/bi devices connected together.

This commit is contained in:
steve 2006-03-15 05:52:20 +00:00
parent 6f46d12e07
commit 8ff70410ab
1 changed files with 49 additions and 9 deletions
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58
tgt-vvp/vvp_scope.c
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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 1.140 2006/03/08 05:29:42 steve Exp $"
#ident "$Id: vvp_scope.c,v 1.141 2006/03/15 05:52:20 steve Exp $"
#endif
# include "vvp_priv.h"
@ -658,7 +658,11 @@ static const char* draw_net_input_drive(ivl_nexus_t nex, ivl_nexus_ptr_t nptr)
* does *not* check for a previously calculated string. Use the
* draw_net_input for the general case.
*/
static char* draw_net_input_x(ivl_nexus_t nex, ivl_nexus_ptr_t omit,
/* Omit LPMPART_BI device pin-data(0) drivers. */
# define OMIT_PART_BI_DATA 0x0001
static char* draw_net_input_x(ivl_nexus_t nex,
ivl_nexus_ptr_t omit_ptr, int omit_flags,
struct vvp_nexus_data*nex_data)
{
ivl_signal_type_t res;
@ -704,9 +708,17 @@ static char* draw_net_input_x(ivl_nexus_t nex, ivl_nexus_ptr_t omit,
for (idx = 0 ; idx < ivl_nexus_ptrs(nex) ; idx += 1) {
ivl_lpm_t lpm_tmp;
ivl_nexus_ptr_t nptr = ivl_nexus_ptr(nex, idx);
if (nptr == omit)
/* If we are supposed to skip LPM_PART_BI data pins,
check that this driver is that. */
if ((omit_flags&OMIT_PART_BI_DATA)
&& (lpm_tmp = ivl_nexus_ptr_lpm(nptr))
&& (nex == ivl_lpm_data(lpm_tmp,0)))
continue;
if (nptr == omit_ptr)
continue;
/* Skip input only pins. */
@ -837,7 +849,7 @@ const char*draw_net_input(ivl_nexus_t nex)
}
assert(nex_data->net_input == 0);
nex_data->net_input = draw_net_input_x(nex, 0, nex_data);
nex_data->net_input = draw_net_input_x(nex, 0, 0, nex_data);
return nex_data->net_input;
}
@ -1877,7 +1889,27 @@ static void draw_lpm_part_pv(ivl_lpm_t net)
* X value, so something special is needed.
*
* NOTE: The inputs of the tran device at this point need to be from
* all the drivers of the nexus *except* the tran itself.
* all the drivers of the nexus *except* the tran itself. This
* function will draw three labels that can be linked:
*
* The ivl_lpm_q of a part(bi) may be a smaller vector then the
* ivl_lpm_data, the tran acts like a forward part select in that
* way.
*
* The device creates these nodes:
*
* - L_%p/i
* This is the Q port of the tran resolved and padded to the maximum
* width of the tran. The tran itself is not included in the
* resolution of this port.
*
* - L_%p/V
* This is the Q and D parts resolved together, still without the tran
* driving anything.
*
* - L_%p/P
* This is the /V node part-selected back to the dimensions of the Q
* side.
*/
static void draw_lpm_part_bi(ivl_lpm_t net)
{
@ -1904,7 +1936,7 @@ static void draw_lpm_part_bi(ivl_lpm_t net)
break;
}
assert(ptr != 0);
p_str = draw_net_input_x(nex, ptr, 0);
p_str = draw_net_input_x(nex, ptr, 0, 0);
nex = ivl_lpm_data(net,0);
for (idx = 0 ; idx < ivl_nexus_ptrs(nex) ; idx += 1) {
@ -1912,13 +1944,18 @@ static void draw_lpm_part_bi(ivl_lpm_t net)
if (ivl_nexus_ptr_lpm(ptr) == net)
break;
}
v_str = draw_net_input_x(nex, ptr, 0);
v_str = draw_net_input_x(nex, ptr, OMIT_PART_BI_DATA, 0);
/* Pad the part-sized input out to a common width... */
/* Pad the part-sized input out to a common width...
The /i label is the Q side of the tran, resolved except for
the tran itself and padded (with z) to the larger width. */
fprintf(vvp_out, "L_%p/i .part/pv %s, %u, %u, %u;\n",
net, p_str, base, width, signal_width);
/* Resolve together the two halves of the tran... */
/* Resolve together the two halves of the tran...
The /V label is the ports of the tran (now the same width)
resolved together. Neither input to this resolver includes
the tran itself. */
fprintf(vvp_out, "L_%p/V .resolv tri, L_%p/i, %s;\n",
net, net, v_str);
@ -2166,6 +2203,9 @@ int draw_scope(ivl_scope_t net, ivl_scope_t parent)
/*
* $Log: vvp_scope.c,v $
* Revision 1.141 2006/03/15 05:52:20 steve
* Handle multiple part/bi devices connected together.
*
* Revision 1.140 2006/03/08 05:29:42 steve
* Add support for logic parameters.
*