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commit e82cce1f126dc1aa0331f115a9898087ac5e6cc8
Author: Georg-Johann Lay <[email protected]>
Date: Mon Jul 29 10:15:23 2024 +0200
gcc-15: AVR: Note addition of noblock, signal(n), interrupt(n) and
__builtin_avr_mask1.
diff --git a/htdocs/gcc-15/changes.html b/htdocs/gcc-15/changes.html
index 3b3a6c0b..aa8d7609 100644
--- a/htdocs/gcc-15/changes.html
+++ b/htdocs/gcc-15/changes.html
@@ -99,7 +99,27 @@ a work-in-progress.</p>
<!-- <h3 id="arm">arm</h3> -->
-<!-- <h3 id="avr">AVR</h3> -->
+<h3 id="avr">AVR</h3>
+
+<ul>
+ <li>Support has been added for the <code>signal</code> and
<code>interrupt</code>
+ <a
href="https://gcc.gnu.org/onlinedocs/gcc/AVR-Function-Attributes.html#index-signal_0028num_0029-function-attribute_002c-AVR";
+ >function attributes</a>
+ that allow to specify the interrupt vector number as an argument.
+ It allows to use static functions as interrupt handlers, and also
+ functions defined in a C++ namespace.</li>
+ <li>Support has been added for the <code>noblock</code> function attribute.
+ It can be specified together with the <code>signal</code> attribute to
+ indicate that the interrupt service routine should start with a SEI
+ instruction to globally re-enable interrupts. The difference to the
+ <code>interrupt</code> attribute is that the <code>noblock</code>
+ attribute just acts like a flag and does not impose a specific function
+ name.</li>
+ <li>Support has been added for the <code>__builtin_avr_mask1</code>
+ <a
href="https://gcc.gnu.org/onlinedocs/gcc/AVR-Built-in-Functions.html#index-_005f_005fbuiltin_005favr_005fmask1";
+ >built-in function</a>. It can be used to compute some bit masks when
+ code like <code>1 << offset</code> is not fast enough.</li>
+</ul>
<!-- <h3 id="x86">IA-32/x86-64</h3> -->
-----------------------------------------------------------------------
Summary of changes:
htdocs/gcc-15/changes.html | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)
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