[nasm:master] doc: document imm64 optimization

[nasm-bot f. H. P. A. <hp...@li...>]

Commit-ID:  af5cb1b4de2c76e8a194467296d5052c772a1d05
Gitweb:     http://repo.or.cz/w/nasm.git?a=commitdiff;h=af5cb1b4de2c76e8a194467296d5052c772a1d05
Author:     H. Peter Anvin <hp...@li...>
AuthorDate: Tue, 24 Aug 2010 14:13:32 -0700
Committer:  H. Peter Anvin <hp...@li...>
CommitDate: Tue, 24 Aug 2010 14:13:32 -0700

doc: document imm64 optimization

Signed-off-by: H. Peter Anvin <hp...@li...>


---
 doc/changes.src |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/doc/changes.src b/doc/changes.src
index 0cb5f27..4c0c305 100644
--- a/doc/changes.src
+++ b/doc/changes.src
@@ -7,6 +7,15 @@
 The NASM 2 series support x86-64, and is the production version of NASM
 since 2007.
 
+\S{cl-2.10} Version 2.10
+
+\b When optimization is enabled, \c{mov r64,imm} now optimizes to the
+  shortest form possible between:
+
+\c      mov r32,imm32			;  5 bytes
+\c	mov r64,imm32			;  7 bytes
+\c	mov r64,imm64			; 10 bytes
+
 
 \S{cl-2.09} Version 2.09