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Clarify docs that bss is zero-initialized

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Addresses comment raised in #1202.
This commit is contained in:
Jesse Rosenstock
2020-08-19 09:29:30 +02:00
committed by Oliver Schmidt
parent 9fcde120aa
commit 85e8a6cb9f
1 changed files with 4 additions and 3 deletions
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doc/cc65.sgml
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@@ -1043,8 +1043,8 @@ parameter with the <tt/#pragma/.
<sect1><tt>#pragma bss-name (&lsqb;push,&rsqb; &lt;name&gt;)</tt><label id="pragma-bss-name"><p> <sect1><tt>#pragma bss-name (&lsqb;push,&rsqb; &lt;name&gt;)</tt><label id="pragma-bss-name"><p>
This pragma changes the name used for the BSS segment (the BSS segment This pragma changes the name used for the BSS segment (the BSS segment
is used to store uninitialized data). The argument is a string enclosed is used to store variables with static storage duration and no explicit
in double quotes. initializer). The argument is a string enclosed in double quotes.
Note: The default linker configuration file does only map the standard Note: The default linker configuration file does only map the standard
segments. If you use other segments, you have to create a new linker segments. If you use other segments, you have to create a new linker
@@ -1052,7 +1052,8 @@ parameter with the <tt/#pragma/.
Beware: The startup code will zero only the default BSS segment. If you Beware: The startup code will zero only the default BSS segment. If you
use another BSS segment, you have to do that yourself, otherwise use another BSS segment, you have to do that yourself, otherwise
uninitialized variables do not have the value zero. variables with static storage duration and no explicit initializer will
not have the value zero.
The <tt/#pragma/ understands the push and pop parameters as explained above. The <tt/#pragma/ understands the push and pop parameters as explained above.