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| <h3 class="section">2.8 Configuring listing output: <samp><span class="option">--listing</span></samp></h3> |
| |
| <p>The listing feature of the assembler can be enabled via the command line switch |
| ‘<samp><span class="samp">-a</span></samp>’ (see <a href="a.html#a">a</a>). This feature combines the input source file(s) with a |
| hex dump of the corresponding locations in the output object file, and displays |
| them as a listing file. The format of this listing can be controlled by |
| directives inside the assembler source (i.e., <code>.list</code> (see <a href="List.html#List">List</a>), |
| <code>.title</code> (see <a href="Title.html#Title">Title</a>), <code>.sbttl</code> (see <a href="Sbttl.html#Sbttl">Sbttl</a>), |
| <code>.psize</code> (see <a href="Psize.html#Psize">Psize</a>), and |
| <code>.eject</code> (see <a href="Eject.html#Eject">Eject</a>) and also by the following switches: |
| |
| <dl> |
| <dt><code>--listing-lhs-width=‘</code><samp><span class="samp">number</span></samp><code>’</code><dd><a name="index-g_t_002d_002dlisting_002dlhs_002dwidth-71"></a><a name="index-Width-of-first-line-disassembly-output-72"></a>Sets the maximum width, in words, of the first line of the hex byte dump. This |
| dump appears on the left hand side of the listing output. |
| |
| <br><dt><code>--listing-lhs-width2=‘</code><samp><span class="samp">number</span></samp><code>’</code><dd><a name="index-g_t_002d_002dlisting_002dlhs_002dwidth2-73"></a><a name="index-Width-of-continuation-lines-of-disassembly-output-74"></a>Sets the maximum width, in words, of any further lines of the hex byte dump for |
| a given input source line. If this value is not specified, it defaults to being |
| the same as the value specified for ‘<samp><span class="samp">--listing-lhs-width</span></samp>’. If neither |
| switch is used the default is to one. |
| |
| <br><dt><code>--listing-rhs-width=‘</code><samp><span class="samp">number</span></samp><code>’</code><dd><a name="index-g_t_002d_002dlisting_002drhs_002dwidth-75"></a><a name="index-Width-of-source-line-output-76"></a>Sets the maximum width, in characters, of the source line that is displayed |
| alongside the hex dump. The default value for this parameter is 100. The |
| source line is displayed on the right hand side of the listing output. |
| |
| <br><dt><code>--listing-cont-lines=‘</code><samp><span class="samp">number</span></samp><code>’</code><dd><a name="index-g_t_002d_002dlisting_002dcont_002dlines-77"></a><a name="index-Maximum-number-of-continuation-lines-78"></a>Sets the maximum number of continuation lines of hex dump that will be |
| displayed for a given single line of source input. The default value is 4. |
| </dl> |
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