gdb/features/aarch64-fpmr.xml

<?xml version="1.0"?>
<!-- Copyright (C) 2025-2026 Free Software Foundation, Inc.

     Copying and distribution of this file, with or without modification,
     are permitted in any medium without royalty provided the copyright
     notice and this notice are preserved.  -->

<!DOCTYPE feature SYSTEM "gdb-target.dtd">
<feature name="org.gnu.gdb.aarch64.fpmr">

  <!-- FP8 format for F8S1, F8S2 and F8D fields.  This is either E5M2 or
       E4M3.  -->
  <enum id="fp8_fmt" size="3">
    <evalue name="E5M2" value="0"/>
    <evalue name="E4M3" value="1"/>
  </enum>

  <!-- Overflow saturation for FP8 convert instructions.  Specifies the result
       when a floating-point overflow exception is detected.  -->
  <enum id="osc" size="1">
    <!-- Infinity or NaN is generated.  -->
    <evalue name="Inf/NaN" value="0"/>
    <!-- Maximum normal number is generated.  -->
    <evalue name="MaxNormal" value="1"/>
  </enum>

  <!-- Overflow saturation for FP8 multiplication instructions.  Specifies the
       result when a floating-point overflow exception is detected.  -->
    <enum id="osm" size="1">
    <!-- Infinity generated.  -->
    <evalue name="Inf" value="0"/>
    <!-- Maximum normal number is generated.  -->
    <evalue name="MaxNormal" value="1"/>
  </enum>

  <flags id="fpmr_flags" size="8">
    <!-- SRC1 Format.  -->
    <field name="F8S1" start="0" end="2" type="fp8_fmt"/>
    <!-- SRC2 Format.  -->
    <field name="F8S2" start="3" end="5" type="fp8_fmt"/>
    <!-- F8D Format.  -->
    <field name="F8D" start="6" end="8" type="fp8_fmt"/>
    <!-- OSM.  -->
    <field name="OSM" start="14" end="14" type="osm"/>
    <!-- OSC.  -->
    <field name="OSC" start="15" end="15" type="osc"/>
    <!-- LSCALE.  -->
    <field name="LSCALE" start="16" end="22"/>
    <!-- NSCALE.  -->
    <field name="NSCALE" start="24" end="31" type="int8"/>
    <!-- LSCALE2.  -->
    <field name="LSCALE2" start="32" end="37"/>
  </flags>

  <reg name="fpmr" bitsize="64" type="fpmr_flags"/>

</feature>