Date: Mon, 11 Feb 2013 00:01:07 +0000 (UTC) From: Rene Ladan <rene@FreeBSD.org> To: doc-committers@freebsd.org, svn-doc-all@freebsd.org, svn-doc-head@freebsd.org Subject: svn commit: r40921 - head/en_US.ISO8859-1/books/arch-handbook/boot Message-ID: <201302110001.r1B018I0063409@svn.freebsd.org>
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Author: rene Date: Mon Feb 11 00:01:07 2013 New Revision: 40921 URL: http://svnweb.freebsd.org/changeset/doc/40921 Log: Some 'igor -z' improvements. Approved by: gjb (mentor) Modified: head/en_US.ISO8859-1/books/arch-handbook/boot/chapter.xml Modified: head/en_US.ISO8859-1/books/arch-handbook/boot/chapter.xml ============================================================================== --- head/en_US.ISO8859-1/books/arch-handbook/boot/chapter.xml Sun Feb 10 14:11:01 2013 (r40920) +++ head/en_US.ISO8859-1/books/arch-handbook/boot/chapter.xml Mon Feb 11 00:01:07 2013 (r40921) @@ -184,7 +184,7 @@ Timecounter "i8254" frequency 1193182 H time.</para> <para>As mentioned previously, the <literal>INT 0x19</literal> - instruction loads an MBR, i.e. the <filename>boot0</filename> + instruction loads an MBR, i.e., the <filename>boot0</filename> content, into the memory at address 0x7c00. Taking a look at the file <filename>sys/boot/i386/boot0/boot0.S</filename> can give a guess at what is happening there - this is the boot @@ -317,7 +317,7 @@ boot2: boot2.ldr boot2.bin ${BTX}/btx/bt link the binary. BTX, which stands for BooT eXtender, is a piece of code that provides a protected mode environment for the program, called the client, that it is linked with. So - <literal>boot2</literal> is a BTX client, i.e. it uses the + <literal>boot2</literal> is a BTX client, i.e., it uses the service provided by BTX.</para> <indexterm><primary>linker</primary></indexterm> @@ -707,7 +707,7 @@ begin:</programlisting> at a 4Gb boundary. Therefore, the instruction's linear virtual address for this example would just be the value of EIP. Segment registers such as CS, DS etc are the selectors, - i.e. indexes, into GDT (to be more precise, an index is not a + i.e., indexes, into GDT (to be more precise, an index is not a selector itself, but the INDEX field of a selector). FreeBSD's GDT holds descriptors for 15 selectors per CPU:</para> @@ -918,7 +918,7 @@ __asm(".previous");</programlisting> <literal>__asm</literal> is. The third <literal>__asm</literal> instruction marks the end of a section. If a directive with the same section name occurred - before, the content, i.e. the 32-bit value, will be appended + before, the content, i.e., the 32-bit value, will be appended to the existing section, so forming an array of 32-bit pointers.</para>
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