Add documentation and fix makefile for Compcert

1 files changed, 25 insertions, 0 deletions

diff --git a/src/verilog/HTL.v b/src/verilog/HTL.v
index f2620a7..1d156ad 100644
--- a/src/verilog/HTL.v
+++ b/src/verilog/HTL.v
@@ -1,3 +1,28 @@
+(*
+ * CoqUp: Verified high-level synthesis.
+ * Copyright (C) 2020 Yann Herklotz <yann@yannherklotz.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *)
+
+(** The purpose of the hardware transfer language (HTL) is to create a more
+  * hardware-like layout that is still similar to the register transfer language
+  * (RTL) that it came from. The main change is that function calls become
+  * module instantiations and that we now describe a state machine instead of a
+  * control-flow graph.
+  *)
+
 From coqup.common Require Import Coquplib.
 
 From compcert Require Import Maps.