xref: /xsrc/external/mit/MesaLib/dist/src/freedreno/isa/ir3-cat0.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright © 2020 Google, Inc.

Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice (including the next
paragraph) shall be included in all copies or substantial portions of the
Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
 -->

<isa>

<!--
	Cat0 Instructions:
 -->

<bitset name="#instruction-cat0" extends="#instruction">
	<!--
		TODO immed size is 16b for a3xx, 20b for a4xx, 32b for a5xx+.. should we
		try to express this?  Also, not all cat0 take an immed, so maybe push
		this further down the hierarchy?
	 -->
	<field name="IMMED" low="0" high="31" type="branch"/>

	<field name="REPEAT" low="40" high="42" type="#rptN"/>
	<pattern pos="43">x</pattern>
	<field name="SS" pos="44" type="bool" display="(ss)"/>
	<field name="EQ" pos="48" type="bool" display="(eq)"/>
	<field name="JP" pos="59" type="bool" display="(jp)"/>
	<field name="SY" pos="60" type="bool" display="(sy)"/>
	<pattern low="61" high="63">000</pattern>  <!-- cat0 -->
	<encode>
		<map name="IMMED">src->cat0.immed</map>
		<map name="COMP1">src->cat0.comp1</map>
		<map name="COMP2">src->cat0.comp2</map>
		<map name="INV1">src->cat0.inv1</map>
		<map name="INV2">src->cat0.inv2</map>
	</encode>
</bitset>


<bitset name="#instruction-cat0-0src" extends="#instruction-cat0">
	<display>
		{SY}{SS}{EQ}{JP}{REPEAT}{NAME}
	</display>
	<pattern low="32" high="36">00000</pattern>
	<pattern low="37" high="39">000</pattern>  <!-- BRTYPE -->
	<pattern low="45" high="47">000</pattern>  <!-- src1 -->
	<pattern low="52" high="54">000</pattern>  <!-- src0 -->
</bitset>

<bitset name="nop" extends="#instruction-cat0-0src">
	<pattern low="49" high="51">xx0</pattern>  <!-- OPC_HI -->
	<pattern low="55" high="58">0000</pattern> <!-- OPC -->
</bitset>

<bitset name="end" extends="#instruction-cat0-0src">
	<pattern low="49" high="51">xx0</pattern>  <!-- OPC_HI -->
	<pattern low="55" high="58">0110</pattern> <!-- OPC -->
</bitset>

<bitset name="ret" extends="#instruction-cat0-0src">
	<pattern low="49" high="51">xx0</pattern>  <!-- OPC_HI -->
	<pattern low="55" high="58">0100</pattern> <!-- OPC -->
</bitset>

<bitset name="emit" extends="#instruction-cat0-0src">
	<pattern low="49" high="51">xx0</pattern>  <!-- OPC_HI -->
	<pattern low="55" high="58">0111</pattern> <!-- OPC -->
</bitset>

<bitset name="cut" extends="#instruction-cat0-0src">
	<pattern low="49" high="51">xx0</pattern>  <!-- OPC_HI -->
	<pattern low="55" high="58">1000</pattern> <!-- OPC -->
</bitset>

<bitset name="chmask" extends="#instruction-cat0-0src">
	<pattern low="49" high="51">xx0</pattern>  <!-- OPC_HI -->
	<pattern low="55" high="58">1001</pattern> <!-- OPC -->
</bitset>

<bitset name="chsh" extends="#instruction-cat0-0src">
	<pattern low="49" high="51">xx0</pattern>  <!-- OPC_HI -->
	<pattern low="55" high="58">1010</pattern> <!-- OPC -->
</bitset>

<bitset name="flow_rev" extends="#instruction-cat0-0src">
	<pattern low="49" high="51">xx0</pattern>  <!-- OPC_HI -->
	<pattern low="55" high="58">1011</pattern> <!-- OPC -->
</bitset>

<bitset name="shpe" extends="#instruction-cat0-0src">
	<doc>SHader Prologue End</doc>
	<pattern low="49" high="51">xx1</pattern>  <!-- OPC_HI -->
	<pattern low="55" high="58">1000</pattern> <!-- OPC -->
</bitset>

<bitset name="prede" extends="#instruction-cat0-0src">
	<pattern low="49" high="51">xx1</pattern>  <!-- OPC_HI -->
	<pattern low="55" high="58">1111</pattern> <!-- OPC -->
</bitset>


<bitset name="#instruction-cat0-1src" extends="#instruction-cat0">
	<display>
		{SY}{SS}{EQ}{JP}{NAME} {INV1}p0.{COMP1}
	</display>
	<pattern low="32" high="36">00000</pattern>
	<pattern low="37" high="39">000</pattern>  <!-- BRTYPE -->
	<pattern low="45" high="47">000</pattern>  <!-- src1 -->
	<field name="INV1" pos="52" type="bool" display="!">
		<doc>Invert source condition</doc>
	</field>
	<field name="COMP1" low="53" high="54" type="#swiz">
		<doc>Predicate register (p0.c) component for source</doc>
	</field>
</bitset>

<bitset name="kill" extends="#instruction-cat0-1src">
	<pattern low="49" high="51">xx0</pattern>  <!-- OPC_HI -->
	<pattern low="55" high="58">0101</pattern> <!-- OPC -->
</bitset>

<bitset name="predt" extends="#instruction-cat0-1src">
	<pattern low="49" high="51">xx1</pattern>  <!-- OPC_HI -->
	<pattern low="55" high="58">1101</pattern> <!-- OPC -->
</bitset>

<bitset name="predf" extends="#instruction-cat0-1src">
	<pattern low="49" high="51">xx1</pattern>  <!-- OPC_HI -->
	<pattern low="55" high="58">1110</pattern> <!-- OPC -->
</bitset>


<bitset name="#instruction-cat0-immed" extends="#instruction-cat0">
	<display>
		{SY}{SS}{JP}{NAME} #{IMMED}
	</display>
	<pattern low="32" high="36">xxxxx</pattern> <!-- INDEX -->
	<pattern low="37" high="39">xxx</pattern>  <!-- BRTYPE -->
	<pattern low="45" high="47">xxx</pattern>  <!-- src1 -->
	<pattern low="52" high="54">xxx</pattern>  <!-- src0 -->
</bitset>

<bitset name="jump" extends="#instruction-cat0-immed">
	<pattern low="49" high="51">xx0</pattern>  <!-- OPC_HI -->
	<pattern low="55" high="58">0010</pattern> <!-- OPC -->
</bitset>

<bitset name="call" extends="#instruction-cat0-immed">
	<pattern low="49" high="51">xx0</pattern>  <!-- OPC_HI -->
	<pattern low="55" high="58">0011</pattern> <!-- OPC -->
</bitset>

<bitset name="bkt" extends="#instruction-cat0-immed">
	<pattern low="49" high="51">xx1</pattern>  <!-- OPC_HI -->
	<pattern low="55" high="58">0000</pattern> <!-- OPC -->
</bitset>

<bitset name="getone" extends="#instruction-cat0-immed">
	<pattern low="49" high="51">xx1</pattern>  <!-- OPC_HI -->
	<pattern low="55" high="58">0101</pattern> <!-- OPC -->
</bitset>

<bitset name="shps" extends="#instruction-cat0-immed">
	<doc>SHader Prologue Start</doc>
	<pattern low="49" high="51">xx1</pattern>  <!-- OPC_HI -->
	<pattern low="55" high="58">0111</pattern> <!-- OPC -->
</bitset>

<bitset name="#instruction-cat0-branch" extends="#instruction-cat0">
	<pattern low="49" high="51">xx0</pattern>  <!-- OPC_HI -->
	<pattern low="55" high="58">0001</pattern> <!-- OPC -->
</bitset>

<bitset name="brac" extends="#instruction-cat0-branch">
	<display>
		{SY}{SS}{EQ}{JP}{NAME}.{INDEX} #{IMMED}
	</display>
	<field name="INDEX" low="32" high="36" type="uint"/>
	<pattern low="37" high="39">011</pattern>  <!-- BRTYPE -->
	<pattern low="45" high="47">xxx</pattern>  <!-- src1 -->
	<pattern low="52" high="54">xxx</pattern>  <!-- src0 -->
	<encode>
		<map name="INDEX">src->cat0.idx</map>
	</encode>
</bitset>

<bitset name="brax" extends="#instruction-cat0-branch">
	<pattern low="32" high="36">xxxxx</pattern>
	<pattern low="37" high="39">110</pattern>  <!-- BRTYPE -->
	<pattern low="45" high="47">xxx</pattern>  <!-- src1 -->
	<pattern low="52" high="54">xxx</pattern>  <!-- src0 -->
</bitset>

<bitset name="#instruction-cat0-branch-1src" extends="#instruction-cat0-branch">
	<display>
		{SY}{SS}{EQ}{JP}{NAME} {INV1}p0.{COMP1}, #{IMMED}
	</display>
	<pattern low="32" high="36">xxxxx</pattern>
	<pattern low="45" high="47">xxx</pattern>  <!-- src1 -->
	<field name="INV1" pos="52" type="bool" display="!">
		<doc>Invert source condition</doc>
	</field>
	<field name="COMP1" low="53" high="54" type="#swiz">
		<doc>Predicate register (p0.c) component for source</doc>
	</field>
</bitset>

<bitset name="br" extends="#instruction-cat0-branch-1src">
	<pattern low="37" high="39">000</pattern>  <!-- BRTYPE -->
</bitset>

<bitset name="bany" extends="#instruction-cat0-branch-1src">
	<pattern low="37" high="39">100</pattern>  <!-- BRTYPE -->
</bitset>

<bitset name="ball" extends="#instruction-cat0-branch-1src">
	<pattern low="37" high="39">101</pattern>  <!-- BRTYPE -->
</bitset>

<bitset name="#instruction-cat0-branch-2src" extends="#instruction-cat0-branch">
	<display>
		{SY}{SS}{EQ}{JP}{NAME} {INV1}p0.{COMP1}, {INV2}p0.{COMP2}, #{IMMED}
	</display>
	<pattern low="32" high="36">xxxxx</pattern>
	<!-- src1: -->
	<field name="INV2" pos="45" type="bool" display="!">
		<doc>Invert source 2 condition</doc>
	</field>
	<field name="COMP2" low="46" high="47" type="#swiz">
		<doc>Predicate register (p0.c) component for source 2</doc>
	</field>
	<!-- src0: -->
	<field name="INV1" pos="52" type="bool" display="!">
		<doc>Invert source 1 condition</doc>
	</field>
	<field name="COMP1" low="53" high="54" type="#swiz">
		<doc>Predicate register (p0.c) component for source 1</doc>
	</field>
</bitset>

<bitset name="brao" extends="#instruction-cat0-branch-2src">
	<pattern low="37" high="39">001</pattern>  <!-- BRTYPE -->
</bitset>

<bitset name="braa" extends="#instruction-cat0-branch-2src">
	<pattern low="37" high="39">010</pattern>  <!-- BRTYPE -->
</bitset>

<!-- TODO rest of cat0 -->

</isa>