From: Niels Möller <nisse@lysator.liu.se>
Date: Mon, 4 Mar 2013 14:17:14 +0000 (+0100)
Subject: Note that r14/lr can be used.
X-Git-Tag: nettle_2.7_release_20130424~109^2~10
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3ac426dfe3a7bd9ab242098305ef7c4b775bac5c;p=thirdparty%2Fnettle.git

Note that r14/lr can be used.
---

diff --git a/armv7/README b/armv7/README
index 4d01f30b..9bacd97b 100644
--- a/armv7/README
+++ b/armv7/README
@@ -4,6 +4,8 @@ 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.
 
+12 usable registers (if we exclude r9).
+
 ABI gnueabi(hf) (not depending on the floating point conventions)
 
 Registers	May be		Argument
@@ -23,7 +25,7 @@ r10		N
 r11		N
 r12 (ip)	Y
 r13 (sp)
-r14 (lr)
+r14 (lr)        N
 r15 (pc)
 
 q0 (d0, d1)	Y		1 (for "hf" abi)