397 lines
25 KiB
XML
397 lines
25 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<?xml-stylesheet type="text/xsl" encoding="UTF-8" href="iform.xsl" version="1.0"?>
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<!DOCTYPE instructionsection PUBLIC "-//ARM//DTD instructionsection //EN" "iform-p.dtd">
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<!-- Copyright (c) 2010-2022 Arm Limited or its affiliates. All rights reserved. -->
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<!-- This document is Non-Confidential. This document may only be used and distributed in accordance with the terms of the agreement entered into by Arm and the party that Arm delivered this document to. -->
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<instructionsection id="VFNMS" title="VFNMS -- AArch32" type="instruction">
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<docvars>
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<docvar key="instr-class" value="fpsimd" />
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<docvar key="mnemonic" value="VFNMS" />
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</docvars>
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<heading>VFNMS</heading>
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<desc>
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<brief>
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<para>Vector Fused Negate Multiply Subtract</para>
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</brief>
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<authored>
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<para>Vector Fused Negate Multiply Subtract multiplies together two floating-point register values, adds the negation of the floating-point value in the destination register to the product, and writes the result back to the destination register. The instruction does not round the result of the multiply before the addition.</para>
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<para>Depending on settings in the <xref linkend="AArch32.cpacr">CPACR</xref>, <xref linkend="AArch32.nsacr">NSACR</xref>, <xref linkend="AArch32.hcptr">HCPTR</xref>, and <xref linkend="AArch32.fpexc">FPEXC</xref> registers, and the Security state and PE mode in which the instruction is executed, an attempt to execute the instruction might be <arm-defined-word>undefined</arm-defined-word>, or trapped to Hyp mode. For more information see <xref linkend="CIHIDDFF">Enabling Advanced SIMD and floating-point support</xref>.</para>
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</authored>
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</desc>
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<alias_list howmany="0"></alias_list>
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<classes>
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<classesintro count="2">
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<txt>It has encodings from the following instruction sets:</txt>
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<txt> A32 (</txt>
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<a href="#iclass_a1">A1</a>
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<txt>)</txt>
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<txt> and </txt>
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<txt> T32 (</txt>
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<a href="#iclass_t1">T1</a>
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<txt>)</txt>
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<txt>.</txt>
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</classesintro>
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<iclass name="A1" oneof="2" id="iclass_a1" no_encodings="3" isa="A32">
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<docvars>
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<docvar key="armarmheading" value="A1" />
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<docvar key="instr-class" value="fpsimd" />
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<docvar key="isa" value="A32" />
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<docvar key="mnemonic" value="VFNMS" />
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</docvars>
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<iclassintro count="3"></iclassintro>
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<regdiagram form="32" psname="aarch32/instrs/VFNMA/A1_A.txt" tworows="1">
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<box hibit="31" width="4" name="cond" usename="1" settings="4" constraint="!= 1111">
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<c colspan="4">!= 1111</c>
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</box>
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<box hibit="27" width="4" settings="4">
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<c>1</c>
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<c>1</c>
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<c>1</c>
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<c>0</c>
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</box>
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<box hibit="23" name="o0" settings="1">
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<c>1</c>
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</box>
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<box hibit="22" name="D" usename="1">
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<c></c>
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</box>
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<box hibit="21" width="2" name="o1" settings="2">
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<c>0</c>
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<c>1</c>
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</box>
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<box hibit="19" width="4" name="Vn" usename="1">
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<c colspan="4"></c>
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</box>
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<box hibit="15" width="4" name="Vd" usename="1">
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<c colspan="4"></c>
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</box>
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<box hibit="11" width="2" settings="2">
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<c>1</c>
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<c>0</c>
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</box>
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<box hibit="9" width="2" name="size" usename="1">
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<c colspan="2"></c>
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</box>
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<box hibit="7" name="N" usename="1">
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<c></c>
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</box>
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<box hibit="6" name="op" usename="1" settings="1">
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<c>0</c>
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</box>
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<box hibit="5" name="M" usename="1">
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<c></c>
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</box>
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<box hibit="4" settings="1">
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<c>0</c>
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</box>
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<box hibit="3" width="4" name="Vm" usename="1">
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<c colspan="4"></c>
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</box>
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</regdiagram>
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<encoding name="VFNMS_A1_H" oneofinclass="3" oneof="6" label="Half-precision scalar" bitdiffs="size == 01">
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<docvars>
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<docvar key="armarmheading" value="A1" />
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<docvar key="fpdatasize" value="halfprec" />
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<docvar key="instr-class" value="fpsimd" />
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<docvar key="isa" value="A32" />
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<docvar key="mnemonic" value="VFNMS" />
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<docvar key="mnemonic-fpdatasize" value="VFNMS-halfprec" />
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</docvars>
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<arch_variants>
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<arch_variant name="ARMv8.2" feature="FEAT_FP16" />
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</arch_variants>
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<box hibit="9" width="2" name="size">
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<c>0</c>
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<c>1</c>
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</box>
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<asmtemplate><text>VFNMS</text><text>{</text><a link="sa_c" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><c></a><text>}</text><text>{</text><a link="sa_q" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><q></a><text>}</text><text>.F16 </text><a link="sa_sd" hover="32-bit SIMD&FP destination register (field "Vd:D")"><Sd></a><text>, </text><a link="sa_sn" hover="First 32-bit SIMD&FP source register (field "Vn:N")"><Sn></a><text>, </text><a link="sa_sm" hover="Second 32-bit SIMD&FP source register (field "Vm:M")"><Sm></a></asmtemplate>
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</encoding>
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<encoding name="VFNMS_A1_S" oneofinclass="3" oneof="6" label="Single-precision scalar" bitdiffs="size == 10">
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<docvars>
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<docvar key="armarmheading" value="A1" />
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<docvar key="fpdatasize" value="singleprec" />
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<docvar key="instr-class" value="fpsimd" />
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<docvar key="isa" value="A32" />
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<docvar key="mnemonic" value="VFNMS" />
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<docvar key="mnemonic-fpdatasize" value="VFNMS-singleprec" />
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</docvars>
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<box hibit="9" width="2" name="size">
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<c>1</c>
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<c>0</c>
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</box>
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<asmtemplate><text>VFNMS</text><text>{</text><a link="sa_c" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><c></a><text>}</text><text>{</text><a link="sa_q" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><q></a><text>}</text><text>.F32 </text><a link="sa_sd" hover="32-bit SIMD&FP destination register (field "Vd:D")"><Sd></a><text>, </text><a link="sa_sn" hover="First 32-bit SIMD&FP source register (field "Vn:N")"><Sn></a><text>, </text><a link="sa_sm" hover="Second 32-bit SIMD&FP source register (field "Vm:M")"><Sm></a></asmtemplate>
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</encoding>
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<encoding name="VFNMS_A1_D" oneofinclass="3" oneof="6" label="Double-precision scalar" bitdiffs="size == 11">
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<docvars>
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<docvar key="armarmheading" value="A1" />
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<docvar key="fpdatasize" value="doubleprec" />
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<docvar key="instr-class" value="fpsimd" />
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<docvar key="isa" value="A32" />
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<docvar key="mnemonic" value="VFNMS" />
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<docvar key="mnemonic-fpdatasize" value="VFNMS-doubleprec" />
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</docvars>
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<box hibit="9" width="2" name="size">
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<c>1</c>
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<c>1</c>
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</box>
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<asmtemplate><text>VFNMS</text><text>{</text><a link="sa_c" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><c></a><text>}</text><text>{</text><a link="sa_q" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><q></a><text>}</text><text>.F64 </text><a link="sa_dd" hover="64-bit SIMD&FP destination register (field "D:Vd")"><Dd></a><text>, </text><a link="sa_dn" hover="First 64-bit SIMD&FP source register (field "N:Vn")"><Dn></a><text>, </text><a link="sa_dm" hover="Second 64-bit SIMD&FP source register (field "M:Vm")"><Dm></a></asmtemplate>
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</encoding>
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<ps_section howmany="1">
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<ps name="aarch32/instrs/VFNMA/A1_A.txt" mylink="aarch32.instrs.VFNMA.A1_A.txt" enclabels="" sections="1" secttype="noheading">
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<pstext mayhavelinks="1" section="Decode" rep_section="decode">if FPSCR.Len != '000' || FPSCR.Stride != '00' then UNDEFINED;
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if size == '00' || (size == '01' && !<a link="impl-shared.HaveFP16Ext.0" file="shared_pseudocode.xml" hover="function: boolean HaveFP16Ext()">HaveFP16Ext</a>()) then UNDEFINED;
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if size == '01' && cond != '1110' then UNPREDICTABLE;
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op1_neg = (op == '1');
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integer esize;
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integer d;
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integer n;
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integer m;
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case size of
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when '01' esize = 16; d = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Vd:D); n = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Vn:N); m = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Vm:M);
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when '10' esize = 32; d = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Vd:D); n = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Vn:N); m = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Vm:M);
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when '11' esize = 64; d = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(D:Vd); n = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(N:Vn); m = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(M:Vm);</pstext>
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</ps>
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</ps_section>
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<constrained_unpredictables encoding="A1" ps_block="Decode">
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<cu_case>
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<cu_cause>
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<pstext mayhavelinks="1">size == '01' && cond != '1110'</pstext>
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</cu_cause>
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<cu_type constraint="Constraint_UNDEF" />
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<cu_type>
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<cu_type_text>The instruction executes as if it passes the Condition code check.</cu_type_text>
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</cu_type>
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<cu_type>
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<cu_type_text>The instruction executes as NOP. This means it behaves as if it fails the Condition code check.</cu_type_text>
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</cu_type>
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<arch_variants>
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<arch_variant name="ARMv8.2-A" />
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</arch_variants>
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</cu_case>
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</constrained_unpredictables>
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</iclass>
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<iclass name="T1" oneof="2" id="iclass_t1" no_encodings="3" isa="T32">
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<docvars>
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<docvar key="armarmheading" value="T1" />
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<docvar key="instr-class" value="fpsimd" />
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<docvar key="isa" value="T32" />
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<docvar key="mnemonic" value="VFNMS" />
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</docvars>
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<iclassintro count="3"></iclassintro>
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<regdiagram form="16x2" psname="aarch32/instrs/VFNMA/T1_A.txt" tworows="1">
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<box hibit="31" width="8" settings="8">
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<c>1</c>
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<c>1</c>
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<c>1</c>
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<c>0</c>
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<c>1</c>
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<c>1</c>
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<c>1</c>
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<c>0</c>
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</box>
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<box hibit="23" name="o0" settings="1">
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<c>1</c>
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</box>
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<box hibit="22" name="D" usename="1">
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<c></c>
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</box>
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<box hibit="21" width="2" name="o1" settings="2">
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<c>0</c>
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<c>1</c>
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</box>
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<box hibit="19" width="4" name="Vn" usename="1">
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<c colspan="4"></c>
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</box>
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<box hibit="15" width="4" name="Vd" usename="1">
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<c colspan="4"></c>
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</box>
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<box hibit="11" width="2" settings="2">
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<c>1</c>
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<c>0</c>
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</box>
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<box hibit="9" width="2" name="size" usename="1">
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<c colspan="2"></c>
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</box>
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<box hibit="7" name="N" usename="1">
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<c></c>
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</box>
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<box hibit="6" name="op" usename="1" settings="1">
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<c>0</c>
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</box>
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<box hibit="5" name="M" usename="1">
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<c></c>
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</box>
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<box hibit="4" settings="1">
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<c>0</c>
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</box>
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<box hibit="3" width="4" name="Vm" usename="1">
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<c colspan="4"></c>
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</box>
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</regdiagram>
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<encoding name="VFNMS_T1_H" oneofinclass="3" oneof="6" label="Half-precision scalar" bitdiffs="size == 01">
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<docvars>
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<docvar key="armarmheading" value="T1" />
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<docvar key="fpdatasize" value="halfprec" />
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<docvar key="instr-class" value="fpsimd" />
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<docvar key="isa" value="T32" />
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<docvar key="mnemonic" value="VFNMS" />
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<docvar key="mnemonic-fpdatasize" value="VFNMS-halfprec" />
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</docvars>
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<arch_variants>
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<arch_variant name="ARMv8.2" feature="FEAT_FP16" />
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</arch_variants>
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<box hibit="9" width="2" name="size">
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<c>0</c>
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<c>1</c>
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</box>
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<asmtemplate><text>VFNMS</text><text>{</text><a link="sa_c" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><c></a><text>}</text><text>{</text><a link="sa_q" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><q></a><text>}</text><text>.F16 </text><a link="sa_sd" hover="32-bit SIMD&FP destination register (field "Vd:D")"><Sd></a><text>, </text><a link="sa_sn" hover="First 32-bit SIMD&FP source register (field "Vn:N")"><Sn></a><text>, </text><a link="sa_sm" hover="Second 32-bit SIMD&FP source register (field "Vm:M")"><Sm></a></asmtemplate>
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</encoding>
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<encoding name="VFNMS_T1_S" oneofinclass="3" oneof="6" label="Single-precision scalar" bitdiffs="size == 10">
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<docvars>
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<docvar key="armarmheading" value="T1" />
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<docvar key="fpdatasize" value="singleprec" />
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<docvar key="instr-class" value="fpsimd" />
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<docvar key="isa" value="T32" />
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<docvar key="mnemonic" value="VFNMS" />
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<docvar key="mnemonic-fpdatasize" value="VFNMS-singleprec" />
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</docvars>
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<box hibit="9" width="2" name="size">
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<c>1</c>
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<c>0</c>
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</box>
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<asmtemplate><text>VFNMS</text><text>{</text><a link="sa_c" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><c></a><text>}</text><text>{</text><a link="sa_q" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><q></a><text>}</text><text>.F32 </text><a link="sa_sd" hover="32-bit SIMD&FP destination register (field "Vd:D")"><Sd></a><text>, </text><a link="sa_sn" hover="First 32-bit SIMD&FP source register (field "Vn:N")"><Sn></a><text>, </text><a link="sa_sm" hover="Second 32-bit SIMD&FP source register (field "Vm:M")"><Sm></a></asmtemplate>
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</encoding>
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<encoding name="VFNMS_T1_D" oneofinclass="3" oneof="6" label="Double-precision scalar" bitdiffs="size == 11">
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<docvars>
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<docvar key="armarmheading" value="T1" />
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<docvar key="fpdatasize" value="doubleprec" />
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<docvar key="instr-class" value="fpsimd" />
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<docvar key="isa" value="T32" />
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<docvar key="mnemonic" value="VFNMS" />
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<docvar key="mnemonic-fpdatasize" value="VFNMS-doubleprec" />
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</docvars>
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<box hibit="9" width="2" name="size">
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<c>1</c>
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<c>1</c>
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</box>
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<asmtemplate><text>VFNMS</text><text>{</text><a link="sa_c" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><c></a><text>}</text><text>{</text><a link="sa_q" hover="See {xref{ARMARM_Babbefhf}{Standard assembler syntax fields}}"><q></a><text>}</text><text>.F64 </text><a link="sa_dd" hover="64-bit SIMD&FP destination register (field "D:Vd")"><Dd></a><text>, </text><a link="sa_dn" hover="First 64-bit SIMD&FP source register (field "N:Vn")"><Dn></a><text>, </text><a link="sa_dm" hover="Second 64-bit SIMD&FP source register (field "M:Vm")"><Dm></a></asmtemplate>
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</encoding>
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<ps_section howmany="1">
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<ps name="aarch32/instrs/VFNMA/T1_A.txt" mylink="aarch32.instrs.VFNMA.T1_A.txt" enclabels="" sections="1" secttype="noheading">
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<pstext mayhavelinks="1" section="Decode" rep_section="decode">if FPSCR.Len != '000' || FPSCR.Stride != '00' then UNDEFINED;
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if size == '00' || (size == '01' && !<a link="impl-shared.HaveFP16Ext.0" file="shared_pseudocode.xml" hover="function: boolean HaveFP16Ext()">HaveFP16Ext</a>()) then UNDEFINED;
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if size == '01' && <a link="impl-aarch32.InITBlock.0" file="shared_pseudocode.xml" hover="function: boolean InITBlock()">InITBlock</a>() then UNPREDICTABLE;
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op1_neg = (op == '1');
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integer esize;
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integer d;
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integer n;
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integer m;
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case size of
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when '01' esize = 16; d = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Vd:D); n = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Vn:N); m = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Vm:M);
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when '10' esize = 32; d = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Vd:D); n = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Vn:N); m = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(Vm:M);
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when '11' esize = 64; d = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(D:Vd); n = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(N:Vn); m = <a link="impl-shared.UInt.1" file="shared_pseudocode.xml" hover="function: integer UInt(bits(N) x)">UInt</a>(M:Vm);</pstext>
|
|
</ps>
|
|
</ps_section>
|
|
<constrained_unpredictables encoding="T1" ps_block="Decode">
|
|
<cu_case>
|
|
<cu_cause>
|
|
<pstext mayhavelinks="1">size == '01' && InITBlock()</pstext>
|
|
</cu_cause>
|
|
<cu_type constraint="Constraint_UNDEF" />
|
|
<cu_type>
|
|
<cu_type_text>The instruction executes as if it passes the Condition code check.</cu_type_text>
|
|
</cu_type>
|
|
<cu_type>
|
|
<cu_type_text>The instruction executes as NOP. This means it behaves as if it fails the Condition code check.</cu_type_text>
|
|
</cu_type>
|
|
<arch_variants>
|
|
<arch_variant name="ARMv8.2-A" />
|
|
</arch_variants>
|
|
</cu_case>
|
|
</constrained_unpredictables>
|
|
</iclass>
|
|
</classes>
|
|
<explanations scope="all">
|
|
<explanation enclist="VFNMS_A1_H, VFNMS_T1_H" symboldefcount="1">
|
|
<symbol link="sa_c"><c></symbol>
|
|
<account encodedin="">
|
|
<intro>
|
|
<para>See <xref linkend="Babbefhf">Standard assembler syntax fields</xref>.</para>
|
|
</intro>
|
|
</account>
|
|
</explanation>
|
|
<explanation enclist="VFNMS_A1_H, VFNMS_T1_H" symboldefcount="1">
|
|
<symbol link="sa_q"><q></symbol>
|
|
<account encodedin="">
|
|
<intro>
|
|
<para>See <xref linkend="Babbefhf">Standard assembler syntax fields</xref>.</para>
|
|
</intro>
|
|
</account>
|
|
</explanation>
|
|
<explanation enclist="VFNMS_A1_H, VFNMS_T1_H" symboldefcount="1">
|
|
<symbol link="sa_sd"><Sd></symbol>
|
|
<account encodedin="Vd:D">
|
|
<intro>
|
|
<para>Is the 32-bit name of the SIMD&FP destination register, encoded in the "Vd:D" field.</para>
|
|
</intro>
|
|
</account>
|
|
</explanation>
|
|
<explanation enclist="VFNMS_A1_H, VFNMS_T1_H" symboldefcount="1">
|
|
<symbol link="sa_sn"><Sn></symbol>
|
|
<account encodedin="Vn:N">
|
|
<intro>
|
|
<para>Is the 32-bit name of the first SIMD&FP source register, encoded in the "Vn:N" field.</para>
|
|
</intro>
|
|
</account>
|
|
</explanation>
|
|
<explanation enclist="VFNMS_A1_H, VFNMS_T1_H" symboldefcount="1">
|
|
<symbol link="sa_sm"><Sm></symbol>
|
|
<account encodedin="Vm:M">
|
|
<intro>
|
|
<para>Is the 32-bit name of the second SIMD&FP source register, encoded in the "Vm:M" field.</para>
|
|
</intro>
|
|
</account>
|
|
</explanation>
|
|
<explanation enclist="VFNMS_A1_D, VFNMS_T1_D" symboldefcount="1">
|
|
<symbol link="sa_dd"><Dd></symbol>
|
|
<account encodedin="D:Vd">
|
|
<intro>
|
|
<para>Is the 64-bit name of the SIMD&FP destination register, encoded in the "D:Vd" field.</para>
|
|
</intro>
|
|
</account>
|
|
</explanation>
|
|
<explanation enclist="VFNMS_A1_D, VFNMS_T1_D" symboldefcount="1">
|
|
<symbol link="sa_dn"><Dn></symbol>
|
|
<account encodedin="N:Vn">
|
|
<intro>
|
|
<para>Is the 64-bit name of the first SIMD&FP source register, encoded in the "N:Vn" field.</para>
|
|
</intro>
|
|
</account>
|
|
</explanation>
|
|
<explanation enclist="VFNMS_A1_D, VFNMS_T1_D" symboldefcount="1">
|
|
<symbol link="sa_dm"><Dm></symbol>
|
|
<account encodedin="M:Vm">
|
|
<intro>
|
|
<para>Is the 64-bit name of the second SIMD&FP source register, encoded in the "M:Vm" field.</para>
|
|
</intro>
|
|
</account>
|
|
</explanation>
|
|
</explanations>
|
|
<ps_section howmany="1">
|
|
<ps name="aarch32/instrs/VFNMA/Op_A.txt" mylink="execute" enclabels="" sections="1" secttype="Operation">
|
|
<pstext mayhavelinks="1" section="Execute" rep_section="execute">if <a link="impl-aarch32.ConditionPassed.0" file="shared_pseudocode.xml" hover="function: boolean ConditionPassed()">ConditionPassed</a>() then
|
|
EncodingSpecificOperations(); <a link="impl-aarch32.CheckVFPEnabled.1" file="shared_pseudocode.xml" hover="function: CheckVFPEnabled(boolean include_fpexc_check)">CheckVFPEnabled</a>(TRUE);
|
|
case esize of
|
|
when 16
|
|
op16 = if op1_neg then <a link="impl-shared.FPNeg.1" file="shared_pseudocode.xml" hover="function: bits(N) FPNeg(bits(N) op)">FPNeg</a>(<a link="impl-aarch32.S.read.1" file="shared_pseudocode.xml" hover="accessor: bits(32) S[integer n]">S</a>[n]<15:0>) else <a link="impl-aarch32.S.read.1" file="shared_pseudocode.xml" hover="accessor: bits(32) S[integer n]">S</a>[n]<15:0>;
|
|
<a link="impl-aarch32.S.write.1" file="shared_pseudocode.xml" hover="accessor: S[integer n] = bits(32) value">S</a>[d] = <a link="impl-shared.Zeros.1" file="shared_pseudocode.xml" hover="function: bits(N) Zeros(integer N)">Zeros</a>(16) : <a link="impl-shared.FPMulAdd.4" file="shared_pseudocode.xml" hover="function: bits(N) FPMulAdd(bits(N) addend, bits(N) op1, bits(N) op2, FPCRType fpcr)">FPMulAdd</a>(<a link="impl-shared.FPNeg.1" file="shared_pseudocode.xml" hover="function: bits(N) FPNeg(bits(N) op)">FPNeg</a>(<a link="impl-aarch32.S.read.1" file="shared_pseudocode.xml" hover="accessor: bits(32) S[integer n]">S</a>[d]<15:0>), op16, <a link="impl-aarch32.S.read.1" file="shared_pseudocode.xml" hover="accessor: bits(32) S[integer n]">S</a>[m]<15:0>, FPSCR[]);
|
|
when 32
|
|
op32 = if op1_neg then <a link="impl-shared.FPNeg.1" file="shared_pseudocode.xml" hover="function: bits(N) FPNeg(bits(N) op)">FPNeg</a>(<a link="impl-aarch32.S.read.1" file="shared_pseudocode.xml" hover="accessor: bits(32) S[integer n]">S</a>[n]) else <a link="impl-aarch32.S.read.1" file="shared_pseudocode.xml" hover="accessor: bits(32) S[integer n]">S</a>[n];
|
|
<a link="impl-aarch32.S.write.1" file="shared_pseudocode.xml" hover="accessor: S[integer n] = bits(32) value">S</a>[d] = <a link="impl-shared.FPMulAdd.4" file="shared_pseudocode.xml" hover="function: bits(N) FPMulAdd(bits(N) addend, bits(N) op1, bits(N) op2, FPCRType fpcr)">FPMulAdd</a>(<a link="impl-shared.FPNeg.1" file="shared_pseudocode.xml" hover="function: bits(N) FPNeg(bits(N) op)">FPNeg</a>(<a link="impl-aarch32.S.read.1" file="shared_pseudocode.xml" hover="accessor: bits(32) S[integer n]">S</a>[d]), op32, <a link="impl-aarch32.S.read.1" file="shared_pseudocode.xml" hover="accessor: bits(32) S[integer n]">S</a>[m], FPSCR[]);
|
|
when 64
|
|
op64 = if op1_neg then <a link="impl-shared.FPNeg.1" file="shared_pseudocode.xml" hover="function: bits(N) FPNeg(bits(N) op)">FPNeg</a>(<a link="impl-aarch32.D.read.1" file="shared_pseudocode.xml" hover="accessor: bits(64) D[integer n]">D</a>[n]) else <a link="impl-aarch32.D.read.1" file="shared_pseudocode.xml" hover="accessor: bits(64) D[integer n]">D</a>[n];
|
|
<a link="impl-aarch32.D.write.1" file="shared_pseudocode.xml" hover="accessor: D[integer n] = bits(64) value">D</a>[d] = <a link="impl-shared.FPMulAdd.4" file="shared_pseudocode.xml" hover="function: bits(N) FPMulAdd(bits(N) addend, bits(N) op1, bits(N) op2, FPCRType fpcr)">FPMulAdd</a>(<a link="impl-shared.FPNeg.1" file="shared_pseudocode.xml" hover="function: bits(N) FPNeg(bits(N) op)">FPNeg</a>(<a link="impl-aarch32.D.read.1" file="shared_pseudocode.xml" hover="accessor: bits(64) D[integer n]">D</a>[d]), op64, <a link="impl-aarch32.D.read.1" file="shared_pseudocode.xml" hover="accessor: bits(64) D[integer n]">D</a>[m], FPSCR[]);</pstext>
|
|
</ps>
|
|
</ps_section>
|
|
</instructionsection>
|