diff options
author | Jin Kyu Song <jin.kyu.song@intel.com> | 2013-12-18 21:28:41 -0800 |
---|---|---|
committer | Jin Kyu Song <jin.kyu.song@intel.com> | 2013-12-18 22:37:30 -0800 |
commit | 3d06af2bd998cd06c99b7e63a8166a11f7ac798f (patch) | |
tree | a311e40f48642d86103d3a1b9628a36bc63238d2 /doc | |
parent | 97f6faec62979ef5db9c0f4b42e127f4f913115e (diff) | |
download | nasm-3d06af2bd998cd06c99b7e63a8166a11f7ac798f.tar.gz nasm-3d06af2bd998cd06c99b7e63a8166a11f7ac798f.tar.bz2 nasm-3d06af2bd998cd06c99b7e63a8166a11f7ac798f.zip |
nosplit: Limit the effect of NOSPLIT
[nosplit eax+eax] was encoded [eax*2] previously but
this seems against the user's intention.
So in this case, nosplit is ignored now and [eax+eax] will be
generated.
Document is also updated accordingly.
Signed-off-by: Jin Kyu Song <jin.kyu.song@intel.com>
Diffstat (limited to 'doc')
-rw-r--r-- | doc/nasmdoc.src | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/doc/nasmdoc.src b/doc/nasmdoc.src index 327e3cf..8554a34 100644 --- a/doc/nasmdoc.src +++ b/doc/nasmdoc.src @@ -1460,6 +1460,8 @@ fact, it will also split \c{[eax*2+offset]} into \c{[eax+eax+offset]}. You can combat this behaviour by the use of the \c{NOSPLIT} keyword: \c{[nosplit eax*2]} will force \c{[eax*2+0]} to be generated literally. +However, \c{NOSPLIT} in \c{[nosplit eax+eax]} will be ignored because user's +intention here is considered as \c{[eax+eax]}. In 64-bit mode, NASM will by default generate absolute addresses. The \i\c{REL} keyword makes it produce \c{RIP}-relative addresses. Since @@ -4465,8 +4467,8 @@ be used. \c call foo ; BND will be prefixed \c nobnd call foo ; BND will NOT be prefixed -DEFAULT NOBND can disable DEFAULT BND and then \c{BND} prefix will be added -only when explicitly specified in code. +\c{DEFAULT NOBND} can disable \c{DEFAULT BND} and then \c{BND} prefix will be +added only when explicitly specified in code. \H{section} \i\c{SECTION} or \i\c{SEGMENT}: Changing and \i{Defining Sections} |