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Handle bitsel muxes of odd shaped outputs.

This commit is contained in:
steve 2002-04-23 05:06:31 +00:00
parent 9ef49379f4
commit 1ddb736f4c
1 changed files with 34 additions and 14 deletions
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48
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
*/
#if !defined(WINNT)
#ident "$Id: vvp_scope.c,v 1.68 2002/04/23 03:53:59 steve Exp $"
#ident "$Id: vvp_scope.c,v 1.69 2002/04/23 05:06:31 steve Exp $"
#endif
# include "vvp_priv.h"
@ -1238,7 +1238,7 @@ static void draw_lpm_mux_bitwide(ivl_lpm_t net)
unsigned seldx, idx;
ivl_nexus_t s;
assert(size == (1 << sel));
assert(size <= (1 << sel));
s = ivl_lpm_select(net, 0);
@ -1246,16 +1246,24 @@ static void draw_lpm_mux_bitwide(ivl_lpm_t net)
net. These also use up the least significant bit of the
select vector. */
for (idx = 0 ; idx < size ; idx += 2) {
ivl_nexus_t a = ivl_lpm_data2(net, idx+0, 0);
ivl_nexus_t b = ivl_lpm_data2(net, idx+1, 0);
fprintf(vvp_out, "L_%s/0/%u/%u .functor MUXZ, ",
vvp_mangle_id(ivl_lpm_name(net)), sel, idx);
draw_input_from_net(a);
fprintf(vvp_out, ", ");
draw_input_from_net(b);
fprintf(vvp_out, ", ");
{
ivl_nexus_t a = ivl_lpm_data2(net, idx+0, 0);
draw_input_from_net(a);
fprintf(vvp_out, ", ");
}
if ((idx+1) < size) {
ivl_nexus_t b = ivl_lpm_data2(net, idx+1, 0);
draw_input_from_net(b);
fprintf(vvp_out, ", ");
} else {
fprintf(vvp_out, "C<x>, ");
}
draw_input_from_net(s);
fprintf(vvp_out, ", C<1>;\n");
}
@ -1275,9 +1283,13 @@ static void draw_lpm_mux_bitwide(ivl_lpm_t net)
vvp_mangle_id(ivl_lpm_name(net)),
level+1, idx);
fprintf(vvp_out, "L_%s/0/%u/%u, ",
vvp_mangle_id(ivl_lpm_name(net)),
level+1, idx+span/2);
if ((idx + span/2) < size) {
fprintf(vvp_out, "L_%s/0/%u/%u, ",
vvp_mangle_id(ivl_lpm_name(net)),
level+1, idx+span/2);
} else {
fprintf(vvp_out, "C<x>, ");
}
draw_input_from_net(s);
fprintf(vvp_out, ", C<1>;\n");
@ -1291,9 +1303,14 @@ static void draw_lpm_mux_bitwide(ivl_lpm_t net)
fprintf(vvp_out, "L_%s/0/2/0, ", vvp_mangle_id(ivl_lpm_name(net)));
fprintf(vvp_out, "L_%s/0/2/%u, ",
vvp_mangle_id(ivl_lpm_name(net)),
size/2);
if ((2 << (sel-1)) < size) {
fprintf(vvp_out, "L_%s/0/2/%u, ",
vvp_mangle_id(ivl_lpm_name(net)),
(2 << (sel-1))/2);
} else {
fprintf(vvp_out, "C<x>, ");
}
draw_input_from_net(s);
fprintf(vvp_out, ", C<1>;\n");
@ -1555,6 +1572,9 @@ int draw_scope(ivl_scope_t net, ivl_scope_t parent)
/*
* $Log: vvp_scope.c,v $
* Revision 1.69 2002/04/23 05:06:31 steve
* Handle bitsel muxes of odd shaped outputs.
*
* Revision 1.68 2002/04/23 03:53:59 steve
* Add support for non-constant bit select.
*