From: Niels Möller <nisse@lysator.liu.se>
Date: Tue, 12 Feb 2013 14:54:34 +0000 (+0100)
Subject: Notes on using ldmia and stmia.
X-Git-Tag: nettle_2.7_release_20130424~114
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=610677e4e008365bd6be1d0149c2f0470debf769;p=thirdparty%2Fnettle.git

Notes on using ldmia and stmia.
---

diff --git a/armv7/README b/armv7/README
index 33715662..4d01f30b 100644
--- a/armv7/README
+++ b/armv7/README
@@ -1,5 +1,9 @@
 Currently, code in this directory is written for arm cortex-a9.
 
+For efficient loads and stores, use ldmia, stmia and friends. Can do
+two loads or stores per cycle with 8-byte aligned addresses, or three
+loads or stores in two cycles, regardless of alignment.
+
 ABI gnueabi(hf) (not depending on the floating point conventions)
 
 Registers	May be		Argument