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<table class="head">
  <tr>
    <td class="head-ltitle">RGBLINK(1)</td>
    <td class="head-vol">General Commands Manual</td>
    <td class="head-rtitle">RGBLINK(1)</td>
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<div class="manual-text">
<h1 class="Sh" title="Sh" id="NAME"><a class="selflink" href="#NAME">NAME</a></h1>
<b class="Nm" title="Nm">rgblink</b> &#x2014; <span class="Nd" title="Nd">Game
  Boy linker</span>
<h1 class="Sh" title="Sh" id="SYNOPSIS"><a class="selflink" href="#SYNOPSIS">SYNOPSIS</a></h1>
<table class="Nm">
  <tr>
    <td><b class="Nm" title="Nm">rgblink</b></td>
    <td>[<span class="Op"><b class="Fl" title="Fl">-dtVw</b></span>]
      [<span class="Op"><b class="Fl" title="Fl">-m</b>
      <var class="Ar" title="Ar">mapfile</var></span>]
      [<span class="Op"><b class="Fl" title="Fl">-n</b>
      <var class="Ar" title="Ar">symfile</var></span>]
      [<span class="Op"><b class="Fl" title="Fl">-O</b>
      <var class="Ar" title="Ar">overlayfile</var></span>]
      [<span class="Op"><b class="Fl" title="Fl">-o</b>
      <var class="Ar" title="Ar">outfile</var></span>]
      [<span class="Op"><b class="Fl" title="Fl">-p</b>
      <var class="Ar" title="Ar">pad_value</var></span>]
      [<span class="Op"><b class="Fl" title="Fl">-s</b>
      <var class="Ar" title="Ar">symbol</var></span>]
      [<span class="Op"><b class="Fl" title="Fl">-l</b>
      <var class="Ar" title="Ar">linkerscript</var></span>]
      <var class="Ar" title="Ar">file ...</var></td>
  </tr>
</table>
<h1 class="Sh" title="Sh" id="DESCRIPTION"><a class="selflink" href="#DESCRIPTION">DESCRIPTION</a></h1>
The <b class="Nm" title="Nm">rgblink</b> program links objects created by
  <a class="Xr" title="Xr">rgbasm(1)</a> into a single Game Boy ROM file.
<div class="Pp"></div>
By default, ROM0 sections created by the assembler are placed in the 16KiB bank
  0, and ROMX sections are placed in any bank except bank 0. If your ROM will
  only be 32KiB, you can use the <b class="Fl" title="Fl">-t</b> option to
  override this.
<div class="Pp"></div>
Similarly, WRAM0 sections are placed in the first 4KiB of WRAM bank 0 and WRAMX
  sections are placed in any bank except bank 0. If your ROM doesn't use banked
  WRAM you can use option <b class="Fl" title="Fl">-w</b> option to override
  this.
<div class="Pp"></div>
Also, if your ROM is designed for DMG, you can make sure that you don't use any
  prohibited section by using the option <b class="Fl" title="Fl">-d</b>, which
  implies <b class="Fl" title="Fl">-w</b> but also prohibits the use of VRAM
  bank 1.
<div class="Pp"></div>
The arguments are as follows:
<dl class="Bl-tag">
  <dt class="It-tag">&#x00A0;</dt>
  <dd class="It-tag">&#x00A0;</dd>
  <dt class="It-tag"><a class="selflink" href="#m"><b class="Fl" title="Fl" id="m">-m</b></a>
    <var class="Ar" title="Ar">mapfile</var></dt>
  <dd class="It-tag">Write a mapfile to the given filename.</dd>
  <dt class="It-tag">&#x00A0;</dt>
  <dd class="It-tag">&#x00A0;</dd>
  <dt class="It-tag"><a class="selflink" href="#n"><b class="Fl" title="Fl" id="n">-n</b></a>
    <var class="Ar" title="Ar">symfile</var></dt>
  <dd class="It-tag">Write a symbol file to the given filename.</dd>
  <dt class="It-tag">&#x00A0;</dt>
  <dd class="It-tag">&#x00A0;</dd>
  <dt class="It-tag"><a class="selflink" href="#O"><b class="Fl" title="Fl" id="O">-O</b></a>
    <var class="Ar" title="Ar">overlayfile</var></dt>
  <dd class="It-tag">The ROM image to overlay sections over. When an overlay ROM
      is provided, all sections must be fixed. This may be used to patch an
      existing binary.</dd>
  <dt class="It-tag">&#x00A0;</dt>
  <dd class="It-tag">&#x00A0;</dd>
  <dt class="It-tag"><a class="selflink" href="#o"><b class="Fl" title="Fl" id="o">-o</b></a>
    <var class="Ar" title="Ar">outfile</var></dt>
  <dd class="It-tag">Write ROM image to the given filename.</dd>
  <dt class="It-tag">&#x00A0;</dt>
  <dd class="It-tag">&#x00A0;</dd>
  <dt class="It-tag"><a class="selflink" href="#p"><b class="Fl" title="Fl" id="p">-p</b></a>
    <var class="Ar" title="Ar">pad_value</var></dt>
  <dd class="It-tag">When padding an image, pad with this value. The default is
      0x00.</dd>
  <dt class="It-tag">&#x00A0;</dt>
  <dd class="It-tag">&#x00A0;</dd>
  <dt class="It-tag"><a class="selflink" href="#s"><b class="Fl" title="Fl" id="s">-s</b></a>
    <var class="Ar" title="Ar">symbol</var></dt>
  <dd class="It-tag">???</dd>
  <dt class="It-tag">&#x00A0;</dt>
  <dd class="It-tag">&#x00A0;</dd>
  <dt class="It-tag"><a class="selflink" href="#w"><b class="Fl" title="Fl" id="w">-w</b></a></dt>
  <dd class="It-tag">Expand the WRAM0 section size from 4KiB to the full 8KiB
      assigned to WRAM and prohibit the use of WRAMX sections.</dd>
  <dt class="It-tag">&#x00A0;</dt>
  <dd class="It-tag">&#x00A0;</dd>
  <dt class="It-tag"><a class="selflink" href="#d"><b class="Fl" title="Fl" id="d">-d</b></a></dt>
  <dd class="It-tag">Enable DMG mode. Prohibit the use of sections that doesn't
      exist on a DMG, such as WRAMX and VRAM bank 1. This option automatically
      enables <b class="Fl" title="Fl">-w</b>.</dd>
  <dt class="It-tag">&#x00A0;</dt>
  <dd class="It-tag">&#x00A0;</dd>
  <dt class="It-tag"><a class="selflink" href="#t"><b class="Fl" title="Fl" id="t">-t</b></a></dt>
  <dd class="It-tag">Expand the ROM0 section size from 16KiB to the full 32KiB
      assigned to ROM and prohibit the use of ROMX sections. Useful for ROMs
      that fit in 32 KiB.</dd>
  <dt class="It-tag">&#x00A0;</dt>
  <dd class="It-tag">&#x00A0;</dd>
  <dt class="It-tag"><a class="selflink" href="#l"><b class="Fl" title="Fl" id="l">-l</b></a>
    <var class="Ar" title="Ar">linkerscript</var></dt>
  <dd class="It-tag">Specify a linkerscript file that tells the linker how
      sections must be placed in the ROM. This file has priority over the
      attributes assigned in the source code, but they have to be consistent.
      See <a class="Xr" title="Xr">rgblink(5)</a> for more information about its
      format.</dd>
  <dt class="It-tag">&#x00A0;</dt>
  <dd class="It-tag">&#x00A0;</dd>
  <dt class="It-tag"><a class="selflink" href="#V"><b class="Fl" title="Fl" id="V">-V</b></a></dt>
  <dd class="It-tag">Print the version of the program and exit.</dd>
</dl>
<h1 class="Sh" title="Sh" id="EXAMPLES"><a class="selflink" href="#EXAMPLES">EXAMPLES</a></h1>
All you need for a basic ROM is an object file, which can be made into a ROM
  image like so:
<div class="Pp"></div>
<div class="D1">$ rgblink -o bar.gb foo.o</div>
<div class="Pp"></div>
The resulting bar.gb will not have correct checksums (unless you put them in the
  assembly source). You should use <a class="Xr" title="Xr">rgbfix(1)</a> to fix
  these so that the program will actually run in a Game Boy:
<div class="Pp"></div>
<div class="D1">$ rgbfix -v bar.gb</div>
<h1 class="Sh" title="Sh" id="SEE_ALSO"><a class="selflink" href="#SEE_ALSO">SEE
  ALSO</a></h1>
<a class="Xr" title="Xr">rgbasm(1)</a>, <a class="Xr" title="Xr">rgblink(5)</a>,
  <a class="Xr" title="Xr">rgbfix(1)</a>, <a class="Xr" title="Xr">rgbds(5)</a>,
  <a class="Xr" title="Xr">rgbds(7)</a>
<h1 class="Sh" title="Sh" id="HISTORY"><a class="selflink" href="#HISTORY">HISTORY</a></h1>
<b class="Nm" title="Nm">rgblink</b> was originally written by Carsten
  S&#x00F8;rensen as part of the ASMotor package, and was later packaged in
  RGBDS by Justin Lloyd. It is now maintained by a number of contributors at
  <a class="Lk" title="Lk" href="https://github.com/rednex/rgbds">https://github.com/rednex/rgbds</a>.</div>
<table class="foot">
  <tr>
    <td class="foot-date">January 26, 2018</td>
    <td class="foot-os">RGBDS Manual</td>
  </tr>
</table>
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