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-rw-r--r--kernel/rtlil.cc14
1 files changed, 14 insertions, 0 deletions
diff --git a/kernel/rtlil.cc b/kernel/rtlil.cc
index 7ba6911a..96b651d8 100644
--- a/kernel/rtlil.cc
+++ b/kernel/rtlil.cc
@@ -557,6 +557,20 @@ namespace {
return;
}
+ if (cell->type == "$alu") {
+ param_bool("\\A_SIGNED");
+ param_bool("\\B_SIGNED");
+ port("\\A", param("\\A_WIDTH"));
+ port("\\B", param("\\B_WIDTH"));
+ port("\\CI", 1);
+ port("\\BI", 1);
+ port("\\X", param("\\Y_WIDTH"));
+ port("\\Y", param("\\Y_WIDTH"));
+ port("\\CO", param("\\Y_WIDTH"));
+ check_expected();
+ return;
+ }
+
if (cell->type == "$logic_not") {
param_bool("\\A_SIGNED");
port("\\A", param("\\A_WIDTH"));