From e50e6a260f5316871ad53ae44d1b10ceb2ca267f Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Wed, 2 Jun 2010 12:58:18 -0500
Subject: ARM: Add a comment to vfp.cc that explains the asm statements.

---
 src/arch/arm/insts/vfp.cc | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'src/arch/arm/insts/vfp.cc')

diff --git a/src/arch/arm/insts/vfp.cc b/src/arch/arm/insts/vfp.cc
index 163779715..1968a59a9 100644
--- a/src/arch/arm/insts/vfp.cc
+++ b/src/arch/arm/insts/vfp.cc
@@ -39,6 +39,12 @@
 
 #include "arch/arm/insts/vfp.hh"
 
+/*
+ * The asm statements below are to keep gcc from reordering code. Otherwise
+ * the rounding mode might be set after the operation it was intended for, the
+ * exception bits read before it, etc.
+ */
+
 std::string
 FpRegRegOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
 {
-- 
cgit v1.2.3