gnu_asm.htm

在ＡＲＭ２４１０支持汇编指令集

  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#034aa930">.p2align[wl] 
  <I>abs-expr</I>, <I>abs-expr</I></A></FONT></FONT></FONT> 
  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#8e9de1a1">.psize 
  <I>lines</I>, <I>columns</I></A></FONT></FONT></FONT> 
  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#08d06760">.quad 
  <I>bignums</I></A></FONT></FONT></FONT> 
  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#3011c9e6">.rept 
  <I>count</I></A></FONT></FONT></FONT> 
  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#f5814739">.sbttl 
  "<I>subheading</I>"</A></FONT></FONT></FONT> 
  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#ac372db0">.scl 
  <I>class</I></A></FONT></FONT></FONT> 
  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#ba439edf">.section 
  <I>name</I>, <I>subsection</I></A></FONT></FONT></FONT> 
  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#c894ae8e">.set 
  <I>symbol</I>, <I>expression</I></A></FONT></FONT></FONT> 
  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#cdb05c2b">.short 
  <I>expressions</I></A></FONT></FONT></FONT> 
  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#ede88a1a">.single 
  <I>flonums</I></A></FONT></FONT></FONT> 
  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#029d3219">.size</A></FONT></FONT></FONT> 

  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#4fde25de">.space 
  <I>size</I>, <I>fill</I></A></FONT></FONT></FONT> 
  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#6d0f7673">.stabd, 
  .stabn, .stabs</A></FONT></FONT></FONT> 
  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#10c88628">.string 
  "<I>str</I>"</A></FONT></FONT></FONT> 
  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#1d4fd552">.tag 
  <I>structname</I></A></FONT></FONT></FONT> 
  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#869a00c4">.text 
  <I>subsection</I></A></FONT></FONT></FONT> 
  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#32d19e4e">.title 
  "<I>heading</I>"</A></FONT></FONT></FONT> 
  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#4475b8bd">.type 
  <I>int</I></A></FONT></FONT></FONT> 
  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#5a8c2ad0">.val 
  <I>addr</I></A></FONT></FONT></FONT> 
  <LI><FONT face="Courier New"><FONT color=#008000><FONT size=+1><A 
  href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#8647002d">.word 
  <I>expressions</I></A></FONT></FONT></FONT> </LI></UL><FONT 
face="Times New Roman"><FONT size=+1><FONT color=#000000>See also </FONT><FONT 
color=#008000><A 
href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#c15abd77">Warning! 
Special treatment to support compilers</A></FONT><FONT color=#000000> and 
</FONT><FONT color=#008000><A 
href="http://rustam.uwp.edu/499/moredocs/asAssembler_Directives.html#9ae8fb95">Deprecated 
directives</A></FONT><FONT color=#000000>.</FONT></FONT></FONT> 
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name=6cb39e9c></A><B><FONT face="Courier New"><FONT 
size=+2>.abort</FONT></FONT></B> 
<P><FONT color=#000000><FONT face="Times New Roman"><FONT size=+1>This directive 
stops the assembly immediately. It is for compatibility with other assemblers. 
The original idea was that the assembly language source would be piped into the 
assembler. If the sender of the source quit, it could use this directive tells 
as to quit also. One day </FONT></FONT><FONT face="Courier New"><FONT 
size=+0>.abort</FONT></FONT><FONT face="Times New Roman"><FONT size=+1> will not 
be supported.</FONT></FONT></FONT> 
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name=6cb39e9c></A><B><FONT face="Courier New"><FONT 
size=+2>.ABORT</FONT></FONT></B> 
<P><FONT color=#000000><FONT face="Times New Roman"><FONT size=+1>When producing 
COFF output, </FONT></FONT><FONT face="Courier New"><FONT 
size=+0>as</FONT></FONT><FONT face="Times New Roman"><FONT size=+1> accepts this 
directive as a synonym for </FONT></FONT><FONT face="Courier New"><FONT 
size=+0>.abort</FONT></FONT><FONT face="Times New Roman"><FONT 
size=+1>.</FONT></FONT></FONT> 
<P><FONT color=#000000><FONT face="Times New Roman"><FONT size=+1>When producing 
</FONT></FONT><FONT face="Courier New"><FONT size=+0>b.out</FONT></FONT><FONT 
face="Times New Roman"><FONT size=+1> output, </FONT></FONT><FONT 
face="Courier New"><FONT size=+0>as</FONT></FONT><FONT 
face="Times New Roman"><FONT size=+1> accepts this directive, but ignores 
it.</FONT></FONT></FONT> 
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name=4f8da59f></A><B><FONT size=+2><FONT face="Courier New">.align 
<I>abs-expr</I>,</FONT><FONT face=Arial> </FONT><I><FONT 
face="Courier New">abs-expr</FONT></I></FONT></B> 
<P><FONT face="Times New Roman"><FONT color=#000000><FONT size=+1>Pad the 
location counter (in the current subsection) to a particular storage boundary. 
The first expression (which must be absolute) is the alignment required, as 
described in the following. The second expression (also absolute) gives the 
value to be stored in the padding bytes. It (and the comma) may be omitted. If 
it is omitted, the padding bytes are zero.</FONT></FONT></FONT> 
<P><FONT face="Times New Roman"><FONT color=#000000><FONT size=+1>The way the 
required alignment is specified varies from system to system. For the a29k, 
hppa, m86k, m88k, w65, sparc, and Hitachi SH, and i386 using ELF format, the 
first expression is the alignment request in bytes.</FONT></FONT></FONT> 
<P><FONT color=#000000><FONT face="Times New Roman"><FONT size=+1>For example, 
</FONT></FONT><FONT face="Courier New"><FONT size=+0>.align 8</FONT></FONT><FONT 
face="Times New Roman"><FONT size=+1> advances the location counter until it is 
a multiple of 8. If the location counter is already a multiple of 8, no change 
is needed.</FONT></FONT></FONT> 
<P><FONT color=#000000><FONT face="Times New Roman"><FONT size=+1>For other 
systems, including the i386 using a.out format, it is the number of low-order 
zero bits the location counter must have after advancement. For example 
</FONT></FONT><FONT face="Courier New"><FONT size=+0>.align 3</FONT></FONT><FONT 
face="Times New Roman"><FONT size=+1> advances the location counter until it a 
multiple of 8. If the location counter is already a multiple of 8, no change is 
needed.</FONT></FONT></FONT> 
<P><FONT color=#000000><FONT face="Times New Roman"><FONT size=+1>This 
inconsistency is due to the different behaviors of the various native assemblers 
for these systems which AS must emulate. AS also provides </FONT></FONT><FONT 
face="Courier New"><FONT size=+0>.balign</FONT></FONT><FONT 
face="Times New Roman"><FONT size=+1> and </FONT></FONT><FONT 
face="Courier New"><FONT size=+0>.p2align</FONT></FONT><FONT 
face="Times New Roman"><FONT size=+1> directives, described later, which have a 
consistent behavior across all architectures (but are specific to 
AS).</FONT></FONT></FONT> 
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name=b5f1df75></A><B><FONT face="Courier New"><FONT size=+2>.app-file 
<I>string</I></FONT></FONT></B> 
<P><FONT color=#000000><FONT face="Courier New"><FONT 
size=+0>.app-file</FONT></FONT><FONT face="Times New Roman"><FONT size=+1> 
(which may also be spelled