1 \documentclass[oneside
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3 \usepackage{amssymb,amsmath
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8 \usepackage[firstpage
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9 \usepackage[printonlyused,withpage
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12 \usepackage[useregional
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13 \usepackage{anyfontsize
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14 \usepackage{ifxetex,ifluatex
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15 \usepackage{fixltx2e
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16 \ifnum 0\ifxetex 1\fi\ifluatex 1\fi=
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18 \usepackage[utf8
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25 \defaultfontfeatures{Ligatures=TeX,Scale=MatchLowercase
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27 % use upquote if available, for straight quotes in verbatim environments
28 \IfFileExists{upquote.sty
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29 % use microtype if available
30 \IfFileExists{microtype.sty
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32 \UseMicrotypeSet[protrusion
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34 \PassOptionsToPackage{hyphens
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35 \usepackage[unicode=true
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39 \usepackage[margin=
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42 \newcommand{\VerbBar}{|
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43 \newcommand{\VERB}{\Verb[commandchars=\\\
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81 \let \saveverbatime \@xverbatim
82 \def \@xverbatim
{\leftskip =
1cm
\relax\saveverbatime}
85 \usepackage{longtable,booktabs
}
86 % Fix footnotes in tables (requires footnote package)
87 \IfFileExists{footnote.sty
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89 \IfFileExists{parskip.sty
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92 \setlength{\parindent}{0pt
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93 \setlength{\parskip}{6pt plus
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95 \setlength{\emergencystretch}{3em
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96 \providecommand{\tightlist}{%
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98 \setcounter{secnumdepth
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99 % Redefines (sub)paragraphs to behave more like sections
100 \ifx\paragraph\undefined\else
101 \let\oldparagraph\paragraph
102 \renewcommand{\paragraph}[1]{\oldparagraph{#1}\mbox{}}
104 \ifx\subparagraph\undefined\else
105 \let\oldsubparagraph\subparagraph
106 \renewcommand{\subparagraph}[1]{\oldsubparagraph{#1}\mbox{}}
109 % set default figure placement to htbp
110 \makeatletter\@addtoreset
{chapter
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}\makeatother%
111 \def\fps@figure
{htbp
}
114 % graphics path for primer
115 \graphicspath{ {svp64-primer/img/
} }
122 \addcontentsline{toc
}{chapter
}{Preamble
} \markboth{INTRODUCTION
}{}
124 \textbf{Last modified date:
\today}
126 This
document is an auto-generated version of the Draft SVP64
127 Specification available at
130 https://libre-soc.org/openpower/sv
133 for which the source code is available at
136 https://git.libre-soc.org/?p=libreriscv.git;a=tree;f=openpower;hb=HEAD
139 This PDF may be created with "make pdf" from the following file:
142 https://git.libre-soc.org/?p=libreriscv.git;a=blob;f=openpower/Makefile;hb=HEAD
145 by executing the following commands:
148 git clone https://git.libre-soc.org/git/libreriscv.git libresoc
149 cd libresoc/libresoc/openpower
153 Simple-V Cray-style Vectors have been developed by the Libre-SOC Team,
154 sponsored by the NLnet Foundation and NGI POINTER under
155 EU Grants
871528 and
957073.
157 Simple-V is in DRAFT Status and will be submitted publicly
158 (non-confidentially) through the OPF ISA WG "External Submissions"
159 Process. Funding from NLnet, through their Privacy and Enhanced Trust
160 Programme, requires full transparency.
162 As this
document is under continuous rapid revision please check frequently
166 https://ftp.libre-soc.org/simple_v_spec.pdf
169 \subsection*
{Contacts
}
170 For questions, comments, and clarification, please contact the following:
173 \item Libre-SOC ISA Dev Mailing List - libre-soc-isa@lists.libre-soc.org
174 \item Luke Kenneth Casson Leighton - Libre-SOC team lead and Red
175 Semiconductor Ltd Director - lkcl@lkcl.net
176 \item David Calderwood - Red Semiconductor Ltd Director -
177 djac@calderwoodhan.com
178 \item Toshaan Bharvani - OpenPOWER Foundation Technical Chair, VanTosh
179 Director - toshaan@vantosh.com
180 \item Konstantinos Margaritis - Engineer and Founder of VectorCamp, writing optimised assembler for a number of SIMD/Vector ISAs - konstantinos@vectorcamp.gr
181 \item Dmitry Selyutin - Libre-SOC engineer, working on binutils SVP64 assembler - ghostmansd@gmail.com
182 \item Jacob Lifshay - Libre-SOC engineer, CPU arch and verification - programmerjake@gmail.com
183 \item Cesar Strauss - Libre-SOC engineer, CPU arch and verification - cestrauss@gmail.com
184 \item Andrey Miroshnikov - Libre-SOC engineer, assisting with documentation - andrey@technepisteme.xyz
187 \part{Scalable Vectors Primer
}
188 \input{svp64-primer/acronyms
}
189 \chapter*
{Executive Summary
}
190 \include{svp64-primer/summary
}
191 \bibliography{svp64-primer/references
}
192 \bibliographystyle{ieeetr
}
196 \part{Scalable Vectors
}
199 \chapter{Fields and Forms
}
200 \hypertarget{svux2ffields
}{}
201 \input{tex_out/fields.tex
}
202 \chapter{Scalable Vectors for the Power ISA
}
203 \hypertarget{svux2fscalvecpowisa
}{}
204 \hypertarget{SVux7csv
}{}
205 \input{tex_out/sv.tex
}
206 \chapter{Other Vector ISAs
}\hypertarget{svux2fvector_isa_comparison
}{}
207 \input{tex_out/vector_isas.tex
}
208 \chapter{Overview
}\hypertarget{svux2foverview
}{}
209 \input{tex_out/overview.tex
}
210 \chapter{Compliancy Levels
}\hypertarget{svux2fcompliancy_levels
}{}
211 \input{tex_out/compliancy_levels.tex
}
212 \chapter{SVP64
}\hypertarget{svux2fsvp64
}{}
213 \input{tex_out/svp64.tex
}
214 \chapter{SPRs
}\hypertarget{svux2fsprs
}{}
215 \input{tex_out/sprs.tex
}
216 \chapter{Arithmetic Mode
}\hypertarget{svux2fnormal
}{}
217 \input{tex_out/normal.tex
}
218 \chapter{Load/Store Mode
}\hypertarget{svux2fldst
}{}
219 \input{tex_out/ldst.tex
}
220 \chapter{Condition Register Fields Mode
}\hypertarget{svux2fcr_ops
}{}
221 \input{tex_out/cr_ops.tex
}
222 \chapter{Branch Mode
}\hypertarget{svux2fbranches
}{}
223 \input{tex_out/branches.tex
}
224 \chapter{setvl instruction
}\hypertarget{svux2fsetvl
}{}
225 \input{tex_out/setvl.tex
}
226 \chapter{svstep instruction
}\hypertarget{svux2fsvstep
}{}
227 \input{tex_out/svstep.tex
}
228 \chapter{REMAP subsystem
}\hypertarget{svux2fremap
}{}
229 \input{tex_out/remap.tex
}
230 \chapter{Swizzle Move
}\hypertarget{svux2fmv.swizzle
}{}
231 \input{tex_out/mv_swizzle.tex
}
232 \chapter{Pack / Unpack
}\hypertarget{svux2fmv.vec
}{}
233 \input{tex_out/mv_vec.tex
}
236 \chapter{SVP64 Appendix
}\hypertarget{svp64ux2fappendix
}{}
237 \hypertarget{svux2fsvp64ux2fappendix
}{}
238 \input{tex_out/svp64_appendix.tex
}
239 \chapter{SVP64 Quirks
}\hypertarget{svux2fsvp64_quirks
}{}
240 \input{tex_out/svp64_quirks.tex
}
241 \chapter{REMAP algorithms
}\hypertarget{svux2fremapux2fappendix
}{}
242 \input{tex_out/remap_appendix.tex
}
243 \chapter{Simple-V pseudocode
}\hypertarget{svux2fpseudocode_simplev
}{}
244 \input{tex_out/pseudocode_simplev.tex
}
246 \chapter{SVP64 Augmentation Table
}\hypertarget{opcode_regs_deduped
}{}
249 \fontsize{7}{9}\selectfont
250 \input{tex_out/opcode_regs_deduped.tex
}
254 \chapter{Comparison Table
}\hypertarget{svux2fcomparison_table
}{}
257 \fontsize{7}{9}\selectfont
258 \input{tex_out/comparison_table.tex
}
264 \part{Scalar Instructions
}
266 \chapter{SV Vector ops
}\hypertarget{svux2fvector_ops
}{}
267 \input{tex_out/vector_ops.tex
}
268 \chapter{CR Weird ops
}\hypertarget{svux2fcr_int_predication
}{}
269 \hypertarget{cr_int_predication
}{}
270 \input{tex_out/cr_int_predication.tex
}
271 \chapter{Bitmanip ops
}\hypertarget{svux2fbitmanip
}{}
272 \input{tex_out/bitmanip.tex
}
273 \chapter{FP/Int Conversion ops
}\hypertarget{svux2fint_fp_mv
}{}
274 \input{tex_out/int_fp_mv.tex
}
275 \chapter{FP Class ops
}\hypertarget{svux2ffclass
}{}
276 \input{tex_out/fclass.tex
}
277 \chapter{Audio and Video Opcodes
}\hypertarget{svux2fav_opcodes
}{}
278 \hypertarget{av_opcodes
}{}
279 \input{tex_out/av_opcodes.tex
}
280 \chapter{Big Integer
}\hypertarget{svux2fbiginteger
}{}
281 \input{tex_out/big_integer.tex
}
282 \chapter{Transcendentals
}\hypertarget{transcendentals
}{}
283 \input{tex_out/transcendentals.tex
}
284 \chapter{Acquire/Release Atomic Memory
}\hypertarget{atomics
}{}
285 \input{tex_out/atomics.tex
}
288 \chapter{Big Integer Analysis
}\hypertarget{svux2fbigintegerux2fanalysis
}{}
289 \input{tex_out/big_integer_analysis.tex
}
290 \chapter{Bitmanip pseudocode
}\hypertarget{svux2fpseudocode_bitmanip
}{}
291 \input{tex_out/pseudocode_bitmanip.tex
}
292 \chapter{Floating Point pseudocode
}\hypertarget{isaux2fsvfparith
}{}
293 \input{tex_out/pseudocode_svfparith.tex
}
294 \chapter{Fixed Point pseudocode
}
295 \hypertarget{isaux2fsvfixedarith
}{}
296 \input{tex_out/pseudocode_svfixedarith.tex
}
299 \part{Scalar Power ISA pseudocode
}
300 \backmatter % temporary fix for too many appenfices
301 %\setcounter{chapter}{0}
302 %\renewcommand{\thechapter}{\Alph{chapter}}
305 \addcontentsline{toc
}{chapter
}{Preamble
} \markboth{INTRODUCTION
}{}
307 This section contains updated pseudocode from the Power ISA Specification
308 v3.0B to be executable. Several bugfixes in Power ISA v3.0B have been
309 found and reported as a direct result due to actually running the
310 pseudocode as executable code in a Simulator.
311 A Formal Correctness Proof Research Paper written by Boris
314 Additionally, with SVP64 performing element-width over-rides it is the
315 \textit{Scalar
} pseudocode that needs adapting to variable-length
316 (
\textbf{XLEN
}). Maintaining duplicate identical copies in every
317 respect
\textit{except
} for an XLEN as part of the Simple-V Specification
318 is completely pointless and a waste of time: the updates to include
320 of the Scalar Power ISA Specification. This has the added benefit
321 that it makes life much easier for
32-bit implementors, and has an
322 additional benefit of making it possible for the Scalar Power ISA
323 to extend to
128-bit in future (like RV128).
326 \chapter{Binary Coded Decimal pseudocode
}
327 \hypertarget{svux2fpseudocode_bcd
}{}
328 \input{tex_out/pseudocode_bcd.tex
}
329 \chapter{Branch pseudocode
}
330 \hypertarget{openpowerux2fisaux2fbranch
}{}
331 \hypertarget{svux2fpseudocode_branch
}{}
332 \input{tex_out/pseudocode_branch.tex
}
333 \chapter{Fixed Point Compare pseudocode
}
334 \hypertarget{svux2fpseudocode_comparefixed
}{}
335 \input{tex_out/pseudocode_comparefixed.tex
}
336 \chapter{Condition Register pseudocode
}
337 \hypertarget{svux2fpseudocode_condition
}{}
338 \input{tex_out/pseudocode_condition.tex
}
340 \chapter{Fixed Point Arithmetic pseudocode
}
341 \hypertarget{svux2fpseudocode_fixedarith
}{}
342 \input{tex_out/pseudocode_fixedarith.tex
}
343 \chapter{Fixed Point Load pseudocode
}
344 \hypertarget{svux2fpseudocode_fixedload
}{}
345 \input{tex_out/pseudocode_fixedload.tex
}
346 \chapter{Fixed Point Logical pseudocode
}
347 \hypertarget{svux2fpseudocode_fixedlogical
}{}
348 \input{tex_out/pseudocode_fixedlogical.tex
}
349 \chapter{Fixed Point Rotate pseudocode
}
350 \hypertarget{svux2fpseudocode_fixedshift
}{}
351 \input{tex_out/pseudocode_fixedshift.tex
}
353 \chapter{Fixed Point Store pseudocode
}
354 \hypertarget{svux2fpseudocode_fixedstore
}{}
355 \input{tex_out/pseudocode_fixedstore.tex
}
356 \chapter{Fixed Point Trap pseudocode
}
357 \hypertarget{svux2fpseudocode_fixedtrap
}{}
358 \input{tex_out/pseudocode_fixedtrap.tex
}
359 \chapter{Special Purpose Register pseudocode
}
360 \hypertarget{svux2fpseudocode_sprset
}{}
361 \input{tex_out/pseudocode_sprset.tex
}
362 \chapter{String Load/Store pseudocode
}
363 \hypertarget{svux2fpseudocode_stringldst
}{}
364 \input{tex_out/pseudocode_stringldst.tex
}
365 \chapter{System Call pseudocode
}
366 \hypertarget{svux2fpseudocode_system
}{}
367 \input{tex_out/pseudocode_system.tex
}
369 \chapter{Floating Point Load pseudocode
}
370 \hypertarget{svux2fpseudocode_fpload
}{}
371 \input{tex_out/pseudocode_fpload.tex
}
372 \chapter{Floating Point Store pseudocode
}
373 \hypertarget{svux2fpseudocode_fpstore
}{}
374 \input{tex_out/pseudocode_fpstore.tex
}
375 \chapter{Floating Point Move pseudocode
}
376 \hypertarget{svux2fpseudocode_fpmove
}{}
377 \input{tex_out/pseudocode_fpmove.tex
}
378 \chapter{Floating Point Arithmetic pseudocode
}
379 \hypertarget{svux2fpseudocode_fparith
}{}
380 \input{tex_out/pseudocode_fparith.tex
}
381 \chapter{Floating Point Integer Conversion pseudocode
}
382 \hypertarget{svux2fpseudocode_fpcvt
}{}
383 \input{tex_out/pseudocode_fpcvt.tex
}