xilinx: Fix srl regression.

[yosys.git] / README.md

diff --git a/README.md b/README.md
index 3058220e71786ac9b9234f6ea1b07dac2580891b..203a292d1b903588863d79dc127eac8415ca5ab8 100644 (file)
--- a/README.md
+++ b/README.md
@@ -309,7 +309,9 @@ Verilog Attributes and non-standard features
   that have ports with a width that depends on a parameter.
 
 - The ``hdlname`` attribute is used by some passes to document the original
-  (HDL) name of a module when renaming a module.
+  (HDL) name of a module when renaming a module. It should contain a single
+  name, or, when describing a hierarchical name in a flattened design, multiple
+  names separated by a single space character.
 
 - The ``keep`` attribute on cells and wires is used to mark objects that should
   never be removed by the optimizer. This is used for example for cells that
@@ -556,7 +558,7 @@ from SystemVerilog:
 - enums are supported (including inside packages)
        - but are currently not strongly typed
 
-- structs are supported
+- packed structs and unions are supported.
 
 - SystemVerilog interfaces (SVIs) are supported. Modports for specifying whether
   ports are inputs or outputs are supported.