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Dennis Reid, CEO, CPM Solutions Ltd. P6 Consulting Inc. Is an authorized Primavera® P6 training provider in Western Canada. Students can be located anywhere in. While solving a CTF challenge online, I came across a situation where I needed to decrypt a '.enc' file that has been encrypted using someone's public key. The corresponding public key '.pem' file was provided to me. I solved almost all other CTF challenges except this one and it has been bugging me since. Naturally using the XML facilities built into the VBA XML Dom would be much better. See the updates above. Original Response. I know this is a very old post but I wanted to share my simple solution to this complicated question. Primarily I've used basic string functions to access the xml data. Because I always believe that the free tools online do not have so many professional functions as the paid ones. And it is said that some of them might contain some virus. Check some free trials of the paid professional conversion tools to convert pdf to image using C#.NET first before you make your final decision if possible. Total PC Cleaner - Free Disk Space Clean Up, Optimize Memory & Windows System. PDF Extra - Edit, View, Fill, Sign & Convert PDFs. Free + Sketch Board.
Last week, ARM released their Machine ReadableArchitecture Specification andI wrote about what you can do with it.But before you can do anything with the specification, you needto extract the useful bits from the release so I thought I would tryfor myself and describe what I found out (and release somescripts that demonstrate/testwhat I am saying).
So what exactly is in the release?
It contains a lot of html files (see Milosch Meriac's online v8-A html)
These are the human readable version of the specification — all nicely hyperlinked. This is the best way to navigate the ARM specification.
It contains some pdf files
These contain the same information as the html files above.The 'OPT' versions are equivalent to the standard version but they havehad some simplifying optimisations applied to make them more readable.The 'OPT_diff' versions show the difference between the standard versionand the OPT version — the best way of understanding what the OPT versiondoes.
It contains some xml files
This is the bit that we want!There are two files of particular interest:
- notice.xml ARM'slegal notice
- shared_pseudocode.xmlhundreds of shared support functions used in the definition of instructions,page table walk, permission checking, exceptions/interrupts, etc.
And the rest of the files are instruction encodings such asadc.xml.
And it contains files like a DTD file that defines the XML schema used bythe XML.
Inside the Shared XML files
The Shared XML files contain all the type definitions, constants, variablesand functions required by the instructions and system support code.Here is how a typical function is presented in XML:
This shows a named 'ps' section containing a small number of related definitions(just one in this case) and with the ASL implementation of the functionenclosed in a 'pstext' section.Almost all objects defined in the pstext section are tagged with 'anchor'and almost all references to objects in the pstext section are tagged with'a'. (We will use these links later.)The rest of the XML attributes are mostly useful for generating HTML — I willignore them.
As we process this ASL code, it will be useful to track what definitionseach 'ps' section contains and what the section depends on.Here is a Python class to represent this (the full code is here).
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and here is some code to read the XML, extract dependencies and package it up asan ASL object.
Inside the Instruction XML files
The ARM architecture often contains several different encodings for a single instruction.Each instruction shares some common ASL code to execute the instruction and (optionally) toperform part of the decoding.The 'pstext' sections containing these are labelled 'Execute' and 'Postdecode'.Some instructions are just aliases for other instructions so they don't containan execute section — I will discard these instructions.
These pieces of ASL can be shared by several different instruction encodings and each encodingis accompanied by a piece of ASL to interpret the fields of the encoding.
Instruction encodings and register descriptions use a common section format called 'regdiagram'.One of the key pieces of information about an instruction is which instruction set it belongs to.The XML uses four different tags: 'T16' (Thumb-32 short encoding), 'T32' (Thumb-32 long encoding), 'A32'(ARM-32 encoding) and 'A64' (ARM-64 encoding). The T16 encoding is 16-bits long and all the others are 32-bits long.
The 'regdiagram' section contains a number of boxes corresponding to one or morecontiguous bits within the encoding.The location of each box is specified bythe width of the box and the highest bit position in the box.Awkwardly, the T16 encoding numbers its bits from 31 down to 16instead of from 15 down to 0 so my script fixes that.
Some boxes have an attribute ‘name', I use '_' for any anonymous boxes.
And some boxes have a constant bitvector made up of '0', '1', 'x', '(0)' or '(1)'.0 and 1 should be obvious, x means 'don't care' and (0) and (1) mean'should be 0/1 and it is UNPREDICTABLE what happens if they are not.'I use a suitable number of 'x's for any field with no constant specified.
The constant can also take the form '!= 1111' meaning 'must not equal 1111'.This check is always replicated in the ASL code so I discard that information for now.
Sometimes the XML splits a single field into two adjacent fields: typically one of the fieldshas a constant value.When this happens, the fields have a name like 'reg<4:1>' and 'reg<0>'.This is not very convenient for our purposes so I look for this pattern andmerge them back into a single field called 'reg'.
To finish off reading an encoding, weread the decode ASL and pick a good name for the instruction encoding.
Finally, the collection of the encodings, the postdecode ASL and the execute ASLare packaged up as an instruction named after the shared execute ASL.
And to read all the instructions in a directory, we use the following code:
Sorting the shared code
Once you have extracted all the code, you are going to want to process it in someway.This will probably be easier to do if we arrange the ASL type and function definitionsso that definitions always occur before their first use.So my script uses the dependencies that we extracted from the ASL to perform atopological sort of the code.
There are several modes it can work in:
- Sort all the code.This will include code used by instructions but also code used when an interruptoccurs or an external debugger is attached.
- Extract all the code that is used by AArch64 instructions. That is, instructionsusing the A64 encodings.
- Extract all the code that is used by AArch32 instructions. That is, instructionsusing the A32 encodings.
- Extract all the code used by AArch64 or AArch32 instructions.
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Conclusion
I hope this is useful for those who want to make use of ARM's Machine ReadableArchitecture specification. The files are designed to meet many differentpurposes so it is not always obvious which parts of them are useful for yourpurpose. This is why I thought it would be a good idea to write some scriptsthat actually extract the code instead of just writing about how I believe youcan do it.
At work, I have access to the raw files from which the XML files are built so it hasbeen a while since I have tried to extract the specification from the XML and it has beeninteresting seeing how much easier it is to use the XML files than it was when I firststarted using the architecture specs.(But there were some issues that I had to work around as well — search the script for theword 'workaround' for details.)
I would really welcome contributions from other people:
- I have a fairly narrow focus in what I want to do with the XML so my tools discard potentially useful information.
- I am also not a native Python speaker — you can probably tell.
- Many of the people who want to use the machine readable specificationare much more comfortable with functional languages — translations are most welcome.
So if you have a suggestion for improving the scripts or you want other scripts, feelfree to implement your suggestion and send me a pull request.
Enjoy!
p.s., unpacking the tarballs and extracting the code is just the beginning.I am working withCambridge University's REMS research groupto convert the ASL to their SAIL language from which you can generate O'Caml, LEMand HOL versions of the spec (with more backends planned).
And if the SAIL version does not suit your needs, then you might want want toknow how to lex, parse, typecheck and execute ASL code yourself. I willdescribe those in future posts.
Related posts and papers
- Paper: End-to-End Verification of ARM Processors with ISA-Formal, CAV 2016.
- Paper: Trustworthy Specifications of ARM v8-A and v8-M System Level Architecture), FMCAD 2016.
- This post: Dissecting the ARM Machine Readable Architecture files
- Code: MRA Tools
- Paper: Who guards the guards? Formal Validation of the Arm v8-M Architecture Specification), OOPSLA 2017.
This library contains three thousand free piano / keyboard music files in 3 formats: PDFs, MIDI and .APT files.
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![Downloadmarcus Downloadmarcus](http://www.iliketoquote.com/img/4555.jpg)
Piano MIDI files can be exported as PDFs or .XML piano music. Athletic swoosh font download microsoft.
Use APT files to create piano / keyboard music:
Ambrose PianoTabs music: PDF, MIDI .mid, XML .xml,
Standard music notation: PDF, MIDI .mid, XML .xml,
Piano music is rated by difficulty, grade from 1 to 8+, and quality 1 to 5
Search by any or all (part or all of name) :-
- Songtitle
- Composer
- Subtitle / Artist / Arranger
- Style / Genre
- Submitters name (uploaded by)
- Grade (music difficulty)
- Quality rating (quality of the music)
• Quality Rating 0 to 5
This represents the quality of the music, as rated by the author and users. A high quality piece is easy to read, plays and sounds well. Please rate all pieces you have used, thank you Want more the book hub ascena.
• Grade 0 to 8+
This represents the skill required as rated by users and is similar to the grading used by Music examination boards
Higher grade pieces require more experience and a lot of practise to play elegantly
Combine criteria to narrow your search results.
e.g. To find a simplified version of Beethoven`s 'Für Elise', enter the following:-
title = 'elise' artist = 'beethoven' genre = Classical grade = 2 stars
![Pdf to xml converter online, free downloadmarcus reid full Pdf to xml converter online, free downloadmarcus reid full](http://slideplayer.com/5901660/19/images/13/Typical+situations+in+which+mixed+methods+is+used%E2%80%A6.jpg)
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Dennis Reid, CEO, CPM Solutions Ltd. P6 Consulting Inc. Is an authorized Primavera® P6 training provider in Western Canada. Students can be located anywhere in. While solving a CTF challenge online, I came across a situation where I needed to decrypt a '.enc' file that has been encrypted using someone's public key. The corresponding public key '.pem' file was provided to me. I solved almost all other CTF challenges except this one and it has been bugging me since. Naturally using the XML facilities built into the VBA XML Dom would be much better. See the updates above. Original Response. I know this is a very old post but I wanted to share my simple solution to this complicated question. Primarily I've used basic string functions to access the xml data. Because I always believe that the free tools online do not have so many professional functions as the paid ones. And it is said that some of them might contain some virus. Check some free trials of the paid professional conversion tools to convert pdf to image using C#.NET first before you make your final decision if possible. Total PC Cleaner - Free Disk Space Clean Up, Optimize Memory & Windows System. PDF Extra - Edit, View, Fill, Sign & Convert PDFs. Free + Sketch Board.
Last week, ARM released their Machine ReadableArchitecture Specification andI wrote about what you can do with it.But before you can do anything with the specification, you needto extract the useful bits from the release so I thought I would tryfor myself and describe what I found out (and release somescripts that demonstrate/testwhat I am saying).
So what exactly is in the release?
It contains a lot of html files (see Milosch Meriac's online v8-A html)
These are the human readable version of the specification — all nicely hyperlinked. This is the best way to navigate the ARM specification.
It contains some pdf files
These contain the same information as the html files above.The 'OPT' versions are equivalent to the standard version but they havehad some simplifying optimisations applied to make them more readable.The 'OPT_diff' versions show the difference between the standard versionand the OPT version — the best way of understanding what the OPT versiondoes.
It contains some xml files
This is the bit that we want!There are two files of particular interest:
- notice.xml ARM'slegal notice
- shared_pseudocode.xmlhundreds of shared support functions used in the definition of instructions,page table walk, permission checking, exceptions/interrupts, etc.
And the rest of the files are instruction encodings such asadc.xml.
And it contains files like a DTD file that defines the XML schema used bythe XML.
Inside the Shared XML files
The Shared XML files contain all the type definitions, constants, variablesand functions required by the instructions and system support code.Here is how a typical function is presented in XML:
This shows a named 'ps' section containing a small number of related definitions(just one in this case) and with the ASL implementation of the functionenclosed in a 'pstext' section.Almost all objects defined in the pstext section are tagged with 'anchor'and almost all references to objects in the pstext section are tagged with'a'. (We will use these links later.)The rest of the XML attributes are mostly useful for generating HTML — I willignore them.
As we process this ASL code, it will be useful to track what definitionseach 'ps' section contains and what the section depends on.Here is a Python class to represent this (the full code is here).
Converter online, free Pdf To Word
and here is some code to read the XML, extract dependencies and package it up asan ASL object.
Inside the Instruction XML files
The ARM architecture often contains several different encodings for a single instruction.Each instruction shares some common ASL code to execute the instruction and (optionally) toperform part of the decoding.The 'pstext' sections containing these are labelled 'Execute' and 'Postdecode'.Some instructions are just aliases for other instructions so they don't containan execute section — I will discard these instructions.
These pieces of ASL can be shared by several different instruction encodings and each encodingis accompanied by a piece of ASL to interpret the fields of the encoding.
Instruction encodings and register descriptions use a common section format called 'regdiagram'.One of the key pieces of information about an instruction is which instruction set it belongs to.The XML uses four different tags: 'T16' (Thumb-32 short encoding), 'T32' (Thumb-32 long encoding), 'A32'(ARM-32 encoding) and 'A64' (ARM-64 encoding). The T16 encoding is 16-bits long and all the others are 32-bits long.
The 'regdiagram' section contains a number of boxes corresponding to one or morecontiguous bits within the encoding.The location of each box is specified bythe width of the box and the highest bit position in the box.Awkwardly, the T16 encoding numbers its bits from 31 down to 16instead of from 15 down to 0 so my script fixes that.
Some boxes have an attribute ‘name', I use '_' for any anonymous boxes.
And some boxes have a constant bitvector made up of '0', '1', 'x', '(0)' or '(1)'.0 and 1 should be obvious, x means 'don't care' and (0) and (1) mean'should be 0/1 and it is UNPREDICTABLE what happens if they are not.'I use a suitable number of 'x's for any field with no constant specified.
The constant can also take the form '!= 1111' meaning 'must not equal 1111'.This check is always replicated in the ASL code so I discard that information for now.
Sometimes the XML splits a single field into two adjacent fields: typically one of the fieldshas a constant value.When this happens, the fields have a name like 'reg<4:1>' and 'reg<0>'.This is not very convenient for our purposes so I look for this pattern andmerge them back into a single field called 'reg'.
To finish off reading an encoding, weread the decode ASL and pick a good name for the instruction encoding.
Finally, the collection of the encodings, the postdecode ASL and the execute ASLare packaged up as an instruction named after the shared execute ASL.
And to read all the instructions in a directory, we use the following code:
Sorting the shared code
Once you have extracted all the code, you are going to want to process it in someway.This will probably be easier to do if we arrange the ASL type and function definitionsso that definitions always occur before their first use.So my script uses the dependencies that we extracted from the ASL to perform atopological sort of the code.
There are several modes it can work in:
- Sort all the code.This will include code used by instructions but also code used when an interruptoccurs or an external debugger is attached.
- Extract all the code that is used by AArch64 instructions. That is, instructionsusing the A64 encodings.
- Extract all the code that is used by AArch32 instructions. That is, instructionsusing the A32 encodings.
- Extract all the code used by AArch64 or AArch32 instructions.
Pdf To Xml Converter online, free downloadmarcus Reid Full
Conclusion
I hope this is useful for those who want to make use of ARM's Machine ReadableArchitecture specification. The files are designed to meet many differentpurposes so it is not always obvious which parts of them are useful for yourpurpose. This is why I thought it would be a good idea to write some scriptsthat actually extract the code instead of just writing about how I believe youcan do it.
At work, I have access to the raw files from which the XML files are built so it hasbeen a while since I have tried to extract the specification from the XML and it has beeninteresting seeing how much easier it is to use the XML files than it was when I firststarted using the architecture specs.(But there were some issues that I had to work around as well — search the script for theword 'workaround' for details.)
I would really welcome contributions from other people:
- I have a fairly narrow focus in what I want to do with the XML so my tools discard potentially useful information.
- I am also not a native Python speaker — you can probably tell.
- Many of the people who want to use the machine readable specificationare much more comfortable with functional languages — translations are most welcome.
So if you have a suggestion for improving the scripts or you want other scripts, feelfree to implement your suggestion and send me a pull request.
Enjoy!
p.s., unpacking the tarballs and extracting the code is just the beginning.I am working withCambridge University's REMS research groupto convert the ASL to their SAIL language from which you can generate O'Caml, LEMand HOL versions of the spec (with more backends planned).
And if the SAIL version does not suit your needs, then you might want want toknow how to lex, parse, typecheck and execute ASL code yourself. I willdescribe those in future posts.
Related posts and papers
- Paper: End-to-End Verification of ARM Processors with ISA-Formal, CAV 2016.
- Paper: Trustworthy Specifications of ARM v8-A and v8-M System Level Architecture), FMCAD 2016.
- This post: Dissecting the ARM Machine Readable Architecture files
- Code: MRA Tools
- Paper: Who guards the guards? Formal Validation of the Arm v8-M Architecture Specification), OOPSLA 2017.
This library contains three thousand free piano / keyboard music files in 3 formats: PDFs, MIDI and .APT files.
Pdf To Xml Converter online, free downloadmarcus Reidsville
Piano MIDI files can be exported as PDFs or .XML piano music. Athletic swoosh font download microsoft.
Use APT files to create piano / keyboard music:
Ambrose PianoTabs music: PDF, MIDI .mid, XML .xml,
Standard music notation: PDF, MIDI .mid, XML .xml,
Piano music is rated by difficulty, grade from 1 to 8+, and quality 1 to 5
Search by any or all (part or all of name) :-
- Songtitle
- Composer
- Subtitle / Artist / Arranger
- Style / Genre
- Submitters name (uploaded by)
- Grade (music difficulty)
- Quality rating (quality of the music)
• Quality Rating 0 to 5
This represents the quality of the music, as rated by the author and users. A high quality piece is easy to read, plays and sounds well. Please rate all pieces you have used, thank you Want more the book hub ascena.
• Grade 0 to 8+
This represents the skill required as rated by users and is similar to the grading used by Music examination boards
Higher grade pieces require more experience and a lot of practise to play elegantly
Combine criteria to narrow your search results.
e.g. To find a simplified version of Beethoven`s 'Für Elise', enter the following:-
title = 'elise' artist = 'beethoven' genre = Classical grade = 2 stars
1 234567891011121314151617[Next][Last]
A Day Without Rain Composer: Enya and Nicky Ryan Genre: Rock / Pop FileName: A_day_without_rainC.apt More Details Submitted by : Russell Ambrose Date : 23/12/2011 Grade |
A Little More Time on You Composer: Carl Sturken Genre: Rock / Pop FileName: ALittleMoreTimeonYou.apt More Details Submitted by : Sara Date : 20/01/2013 Grade |
A Little on the Lonely Side Composer: Dick Robertson Genre: Rock / Pop FileName: ALittleontheLonelySide.apt More Details Submitted by : Sara Date : 01/03/2012 Grade |
A Million Love Songs Composer: Gary Barlow Genre: Rock / Pop FileName: AMillionLoveSongs.apt More Details Submitted by : Sara Date : 25/01/2013 Grade |
A Million Love Songs Composer: Gary Barlow Genre: Rock / Pop FileName: AMillionLoveSongsEasy.apt More Details Submitted by : Russell Ambrose Date : 22/12/2013 Grade |
A Million Love Songs Composer: Gary Barlow Genre: Rock / Pop FileName: AMillionLoveSongsMed.apt More Details Submitted by : Russell Ambrose Date : 18/01/2014 Grade |
A Moment Like This Composer: John Reid and Jorgen Kjell Elofsson Genre: Rock / Pop FileName: AMomentLikeThis.apt More Details Submitted by : Sara Date : 18/11/2012 Grade |
A Thousand Miles Composer: Vanessa Carlton Genre: Rock / Pop FileName: A_thousand_miles2C.apt More Details Submitted by : Russell Ambrose Date : 24/12/2011 Grade |
A Walk in the Country Composer: Genre: Rock / Pop FileName: AWALKINTHECOUNTRY.apt More Details Submitted by : Sara Date : 24/02/2012 Grade |
A Woman In Love Composer: Barbara Streisand Genre: Rock / Pop FileName: AWomanInLove.apt More Details Submitted by : Russell Ambrose Date : 01/10/2011 Grade |
Achy Breaky Heart Composer: Performed by Billie Ray Cyrus, words & music by Don Von Tress Genre: Rock / Pop FileName: AchyBreakyHeartJH.apt More Details Submitted by : Russell Ambrose Date : 06/11/2011 Grade |
Aged Tawny Port Composer: S.Woodworth Genre: Rock / Pop FileName: AgedTawnyPort.apt More Details Submitted by : Sara Date : 23/02/2012 Grade |
All Along the Watchtower Composer: Bob Dylan Genre: Rock / Pop FileName: AllAlongtheWatchtower.apt More Details Submitted by : Sara Date : 12/09/2012 Grade |
All I Ever Wanted Composer: Jim Brickman Genre: Rock / Pop FileName: AllIEverWanted.apt More Details Submitted by : Sara Date : 30/11/2012 Grade |
All I Have to Give Composer: Full Force Genre: Rock / Pop FileName: AllIHavetoGive.apt More Details Submitted by : Russell Ambrose Date : 27/12/2011 Grade |
All I Want for Christmas Composer: Walter Afanasieff / Mariah Carey Genre: Rock / Pop FileName: AllIWantForChristmas.apt More Details Submitted by : Russell Ambrose Date : 11/12/2011 Grade |
All That She Wants Composer: Buddha&Joker Genre: Rock / Pop FileName: AllThatSheWants.apt More Details Submitted by : Sara Date : 16/10/2012 Grade |
Alright Now Composer: Free Genre: Rock / Pop FileName: AlrightNow.apt More Details Submitted by : Russell Ambrose Date : 02/10/2011 Grade |
Always Composer: Jon Bon Jovi Genre: Rock / Pop FileName: Always.apt More Details Submitted by : Sara Date : 18/12/2012 Grade |
Always on My Mind Composer: Elvis Presley Genre: Rock / Pop FileName: always_on_my_mind.apt More Details Submitted by : Russell Ambrose Date : 07/10/2011 Grade |
American Pie Composer: Don McLean Genre: Rock / Pop FileName: Amerpie.apt More Details Submitted by : Russell Ambrose Date : 27/12/2011 Grade |
And I Love Her Composer: The Beatles Genre: Rock / Pop FileName: AndILoveHer.apt More Details Submitted by : Russell Ambrose Date : 27/12/2011 Grade |
And I Love Her Composer: Beatles Genre: Rock / Pop FileName: AndILoveHerEmajor.apt More Details Submitted by : Russell Ambrose Date : 27/12/2011 Grade |
Angel Composer: Chip Taylor Genre: Rock / Pop FileName: Angel.apt More Details Submitted by : Sara Date : 30/11/2012 Grade |
Angel Eyes Composer: Jim Brickman Genre: Rock / Pop FileName: AngelEyes.apt More Details Submitted by : Sara Date : 28/12/2012 Grade |
Ambrose PianoTabs is a chromatic scale and there is a space on the page (stave) for every note. Thus sharps and flat signs are not used. All music is arranged for piano / keyboard in two hands but Ambrose PianoTabs can be used for any instrument.