back.rtlil: add support for real (float) parameters on Instances.

Required for Xilinx MMCME2_BASE, etc.
2019-08-21 22:13:05 -06:00 · 2019-08-21 22:13:05 -06:00 · aefde85031
parent 6737ef79f9
commit aefde85031
1 changed files with 3 additions and 0 deletions
--- a/nmigen/back/rtlil.py
+++ b/nmigen/back/rtlil.py
@ -123,6 +123,9 @@ class _ModuleBuilder(_Namer, _BufferedBuilder, _AttrBuilder):
            elif isinstance(value, int):
                self._append("    parameter \\{} {:d}\n",
                             param, value)
+            elif isinstance(value, float):
+                self._append("    parameter real \\{} \"{:f}\"\n",
+                             param, value)
            elif isinstance(value, ast.Const):
                self._append("    parameter \\{} {}'{:b}\n",
                             param, len(value), value.value)