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vlog95: Add code to emit logicals that are the base of a CA as a CA. 

This patch uses the new function (ivl_logic_is_cassign) to determine
if a logical was really the base of a continuous assignment. This
allows creating code that more closely matches the original.
This commit is contained in:
Cary R 2011-03-22 11:00:05 -07:00 committed by Stephen Williams
parent eb0df40a73
commit 48dc977630
1 changed files with 22 additions and 0 deletions
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22
tgt-vlog95/logic_lpm.c
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@ -1245,6 +1245,28 @@ void emit_logic(ivl_scope_t scope, ivl_net_logic_t nlogic)
* part of a continuous assignment. */ * part of a continuous assignment. */
if (is_local_nexus(scope, ivl_logic_pin(nlogic, 0))) return; if (is_local_nexus(scope, ivl_logic_pin(nlogic, 0))) return;
fprintf(vlog_out, "%*c", indent, ' '); fprintf(vlog_out, "%*c", indent, ' ');
/* Check to see if this logical should really be emitted as/was
* generated from a continuous assignment. */
if (ivl_logic_is_cassign(nlogic)) {
unsigned pin_count = 2;
if (ivl_logic_type(nlogic) != IVL_LO_NOT) pin_count += 1;
assert(ivl_logic_pins(nlogic) == pin_count);
fprintf(vlog_out, "assign");
emit_gate_strength(nlogic, strength_type);
emit_delay(scope,
ivl_logic_delay(nlogic, 0),
ivl_logic_delay(nlogic, 1),
ivl_logic_delay(nlogic, 2),
3);
fprintf(vlog_out, " ");
emit_name_of_nexus(scope, ivl_logic_pin(nlogic, 0));
fprintf(vlog_out, " = ");
emit_logic_as_ca(scope, nlogic);
fprintf(vlog_out, ";");
emit_logic_file_line(nlogic);
fprintf(vlog_out, "\n");
return;
}
switch (ivl_logic_type(nlogic)) { switch (ivl_logic_type(nlogic)) {
case IVL_LO_AND: case IVL_LO_AND:
fprintf(vlog_out, "and"); fprintf(vlog_out, "and");