os/doc
3
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

Some 'igor -z' improvements.

Browse source 
Approved by:	gjb (mentor)
This commit is contained in:
Rene Ladan 2013-02-11 00:01:07 +00:00
parent 95c5268076
commit 83e3a618a7
Notes: svn2git 2020-12-08 03:00:23 +00:00 
svn path=/head/; revision=40921
1 changed files with 4 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
en_US.ISO8859-1/books/arch-handbook/boot/chapter.xml
View file

@ -184,7 +184,7 @@ Timecounter "i8254" frequency 1193182 Hz</screen></para></entry>
time.</para> time.</para>
<para>As mentioned previously, the <literal>INT 0x19</literal> <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 content, into the memory at address 0x7c00. Taking a look at
the file <filename>sys/boot/i386/boot0/boot0.S</filename> can the file <filename>sys/boot/i386/boot0/boot0.S</filename> can
give a guess at what is happening there - this is the boot give a guess at what is happening there - this is the boot
@ -317,7 +317,7 @@ boot2: boot2.ldr boot2.bin ${BTX}/btx/btx
link the binary. BTX, which stands for BooT eXtender, is a link the binary. BTX, which stands for BooT eXtender, is a
piece of code that provides a protected mode environment for the piece of code that provides a protected mode environment for the
program, called the client, that it is linked with. So 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> service provided by BTX.</para>
<indexterm><primary>linker</primary></indexterm> <indexterm><primary>linker</primary></indexterm>
@ -707,7 +707,7 @@ begin:</programlisting>
at a 4Gb boundary. Therefore, the instruction's linear at a 4Gb boundary. Therefore, the instruction's linear
virtual address for this example would just be the value of virtual address for this example would just be the value of
EIP. Segment registers such as CS, DS etc are the selectors, 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 selector itself, but the INDEX field of a selector). FreeBSD's
GDT holds descriptors for 15 selectors per CPU:</para> 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> is. The third
<literal>__asm</literal> instruction marks the end of a <literal>__asm</literal> instruction marks the end of a
section. If a directive with the same section name occurred 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 to the existing section, so forming an array of 32-bit
pointers.</para> pointers.</para>