| <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html> |
| <!-- This file documents the GNU Assembler "as". |
| |
| Copyright (C) 1991-2013 Free Software Foundation, Inc. |
| |
| Permission is granted to copy, distribute and/or modify this document |
| under the terms of the GNU Free Documentation License, Version 1.3 |
| or any later version published by the Free Software Foundation; |
| with no Invariant Sections, with no Front-Cover Texts, and with no |
| Back-Cover Texts. A copy of the license is included in the |
| section entitled "GNU Free Documentation License". |
| --> |
| <!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ --> |
| <head> |
| <title>Using as: VAX-operands</title> |
| |
| <meta name="description" content="Using as: VAX-operands"> |
| <meta name="keywords" content="Using as: VAX-operands"> |
| <meta name="resource-type" content="document"> |
| <meta name="distribution" content="global"> |
| <meta name="Generator" content="makeinfo"> |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> |
| <link href="index.html#Top" rel="start" title="Top"> |
| <link href="AS-Index.html#AS-Index" rel="index" title="AS Index"> |
| <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> |
| <link href="Vax_002dDependent.html#Vax_002dDependent" rel="up" title="Vax-Dependent"> |
| <link href="VAX_002dno.html#VAX_002dno" rel="next" title="VAX-no"> |
| <link href="VAX_002dbranch.html#VAX_002dbranch" rel="prev" title="VAX-branch"> |
| <style type="text/css"> |
| <!-- |
| a.summary-letter {text-decoration: none} |
| blockquote.smallquotation {font-size: smaller} |
| div.display {margin-left: 3.2em} |
| div.example {margin-left: 3.2em} |
| div.indentedblock {margin-left: 3.2em} |
| div.lisp {margin-left: 3.2em} |
| div.smalldisplay {margin-left: 3.2em} |
| div.smallexample {margin-left: 3.2em} |
| div.smallindentedblock {margin-left: 3.2em; font-size: smaller} |
| div.smalllisp {margin-left: 3.2em} |
| kbd {font-style:oblique} |
| pre.display {font-family: inherit} |
| pre.format {font-family: inherit} |
| pre.menu-comment {font-family: serif} |
| pre.menu-preformatted {font-family: serif} |
| pre.smalldisplay {font-family: inherit; font-size: smaller} |
| pre.smallexample {font-size: smaller} |
| pre.smallformat {font-family: inherit; font-size: smaller} |
| pre.smalllisp {font-size: smaller} |
| span.nocodebreak {white-space:nowrap} |
| span.nolinebreak {white-space:nowrap} |
| span.roman {font-family:serif; font-weight:normal} |
| span.sansserif {font-family:sans-serif; font-weight:normal} |
| ul.no-bullet {list-style: none} |
| --> |
| </style> |
| |
| |
| </head> |
| |
| <body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> |
| <a name="VAX_002doperands"></a> |
| <div class="header"> |
| <p> |
| Next: <a href="VAX_002dno.html#VAX_002dno" accesskey="n" rel="next">VAX-no</a>, Previous: <a href="VAX_002dbranch.html#VAX_002dbranch" accesskey="p" rel="prev">VAX-branch</a>, Up: <a href="Vax_002dDependent.html#Vax_002dDependent" accesskey="u" rel="up">Vax-Dependent</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p> |
| </div> |
| <hr> |
| <a name="VAX-Operands"></a> |
| <h4 class="subsection">9.48.6 VAX Operands</h4> |
| |
| <a name="index-VAX-operand-notation"></a> |
| <a name="index-operand-notation_002c-VAX"></a> |
| <a name="index-immediate-character_002c-VAX"></a> |
| <a name="index-VAX-immediate-character"></a> |
| <p>The immediate character is ‘<samp>$</samp>’ for Unix compatibility, not |
| ‘<samp>#</samp>’ as DEC writes it. |
| </p> |
| <a name="index-indirect-character_002c-VAX"></a> |
| <a name="index-VAX-indirect-character"></a> |
| <p>The indirect character is ‘<samp>*</samp>’ for Unix compatibility, not |
| ‘<samp>@</samp>’ as DEC writes it. |
| </p> |
| <a name="index-displacement-sizing-character_002c-VAX"></a> |
| <a name="index-VAX-displacement-sizing-character"></a> |
| <p>The displacement sizing character is ‘<samp>`</samp>’ (an accent grave) for |
| Unix compatibility, not ‘<samp>^</samp>’ as DEC writes it. The letter |
| preceding ‘<samp>`</samp>’ may have either case. ‘<samp>G</samp>’ is not |
| understood, but all other letters (<code>b i l s w</code>) are understood. |
| </p> |
| <a name="index-register-names_002c-VAX"></a> |
| <a name="index-VAX-register-names"></a> |
| <p>Register names understood are <code>r0 r1 r2 … r15 ap fp sp |
| pc</code>. Upper and lower case letters are equivalent. |
| </p> |
| <p>For instance |
| </p><div class="smallexample"> |
| <pre class="smallexample">tstb *w`$4(r5) |
| </pre></div> |
| |
| <p>Any expression is permitted in an operand. Operands are comma |
| separated. |
| </p> |
| |
| |
| |
| |
| </body> |
| </html> |
