| <!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: Z80 Options</title> |
| |
| <meta name="description" content="Using as: Z80 Options"> |
| <meta name="keywords" content="Using as: Z80 Options"> |
| <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="Z80_002dDependent.html#Z80_002dDependent" rel="up" title="Z80-Dependent"> |
| <link href="Z80-Syntax.html#Z80-Syntax" rel="next" title="Z80 Syntax"> |
| <link href="Z80_002dDependent.html#Z80_002dDependent" rel="prev" title="Z80-Dependent"> |
| <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="Z80-Options"></a> |
| <div class="header"> |
| <p> |
| Next: <a href="Z80-Syntax.html#Z80-Syntax" accesskey="n" rel="next">Z80 Syntax</a>, Up: <a href="Z80_002dDependent.html#Z80_002dDependent" accesskey="u" rel="up">Z80-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="Options-27"></a> |
| <h4 class="subsection">9.46.1 Options</h4> |
| <a name="index-Z80-options"></a> |
| <a name="index-options-for-Z80"></a> |
| <p>The Zilog Z80 and Ascii R800 version of <code>as</code> have a few machine |
| dependent options. |
| </p><dl compact="compact"> |
| <dd><a name="index-_002dz80-command-line-option_002c-Z80"></a> |
| </dd> |
| <dt><samp>-z80</samp></dt> |
| <dd><p>Produce code for the Z80 processor. There are additional options to |
| request warnings and error messages for undocumented instructions. |
| </p></dd> |
| <dt><samp>-ignore-undocumented-instructions</samp></dt> |
| <dt><samp>-Wnud</samp></dt> |
| <dd><p>Silently assemble undocumented Z80-instructions that have been adopted |
| as documented R800-instructions. |
| </p></dd> |
| <dt><samp>-ignore-unportable-instructions</samp></dt> |
| <dt><samp>-Wnup</samp></dt> |
| <dd><p>Silently assemble all undocumented Z80-instructions. |
| </p></dd> |
| <dt><samp>-warn-undocumented-instructions</samp></dt> |
| <dt><samp>-Wud</samp></dt> |
| <dd><p>Issue warnings for undocumented Z80-instructions that work on R800, do |
| not assemble other undocumented instructions without warning. |
| </p></dd> |
| <dt><samp>-warn-unportable-instructions</samp></dt> |
| <dt><samp>-Wup</samp></dt> |
| <dd><p>Issue warnings for other undocumented Z80-instructions, do not treat any |
| undocumented instructions as errors. |
| </p></dd> |
| <dt><samp>-forbid-undocumented-instructions</samp></dt> |
| <dt><samp>-Fud</samp></dt> |
| <dd><p>Treat all undocumented z80-instructions as errors. |
| </p></dd> |
| <dt><samp>-forbid-unportable-instructions</samp></dt> |
| <dt><samp>-Fup</samp></dt> |
| <dd><p>Treat undocumented z80-instructions that do not work on R800 as errors. |
| </p> |
| <a name="index-_002dr800-command-line-option_002c-Z80"></a> |
| </dd> |
| <dt><samp>-r800</samp></dt> |
| <dd><p>Produce code for the R800 processor. The assembler does not support |
| undocumented instructions for the R800. |
| In line with common practice, <code>as</code> uses Z80 instruction names |
| for the R800 processor, as far as they exist. |
| </p></dd> |
| </dl> |
| |
| <a name="index-Z80-Syntax"></a> |
| |
| |
| |
| </body> |
| </html> |
