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- ► 2011 (157)
- ► January (20)
- • Green architecture: Sustainability and IT architecture
- • The HL7 Toolkit
- • Friday - link-day #30 - Ebooks, the world, photography, quake and CG
- • Soft Season
- • Friday - link-day #29 - Security, Study, Dark Surreal Art, Celebrities and bicycle pumps
- • Emotions of a project leader during a project
- • Emotions of an architect during a project
- • What if everything is a dream?
- • Site problems due a (probable) bug in ISAPI_Rewrite 3 revision 0079
- • 3 good pratices for your Joomla site
- • Friday - link-day #28 - Anonimity, rocking, macro photography, open source, science
- • Emotions of a developer during a project
- • HL7 and security
- • Where to begin if you want to start with HL7 in C# or Java
- • Understanding the HL7 piped message
- • How to proof that QA saves money
- • Friday - link-day #27 - Computer generated images, handwriting, PDF, photography and philosophy
- • Interesting facts on common things
- • Romans 4: Where do we go wrong?
- • Happy 2011
- ► February (16)
- • Introducing 0na as a contributor
- • The Beatles perform Smack My Bitch Up
- • Friday - link-day #34 - Happiness, usability, pink princesses, security, photography
- • A classic: Write in C
- • Privacy: I've got nothing to hide
- • Friday - link-day #33 - Unittests, roads, introverts, hack free and photography
- • Green architecture: Social
- • Thoughts on Paradise and the Fall of Man
- • Friday - link-day #32 - Photography, Sounds, Documentary, Programming and Vampires!
- • Removing images using PdfSharp
- • The Art of Intrusion - A review
- • Friday - link-day #31 - Old PC, Lost, Boardgames, Ghosts and DocX
- • Making a threatmodel, part 4: Applying STRIDE and priority
- • Making a threatmodel, part 3: Used technologies
- • Making a threatmodel, part 2: Data Flow Diagram
- • Making a threatmodel, part 1: Business usecases
- ► March (14)
- • Privacy, security and smart phones
- • Privacy, security and the cloud
- • Threatmodels - A video on smartphones
- • Friday - link-day #38 - Life-enhancement, barcode, Atlantis, underwater, nowhere
- • Development and the time to market of software
- • Suckerpunch is almost released
- • Friday - link-day #37 - Linux, meaning, meta testing, home library and vampires
- • Green architecture: Environment
- • Why do soft-skills training matter
- • Why nHapi sometimes parses a message as a generic message
- • Friday - link-day #36 - Philosophy, Art, Concept, Hypocrite or Delusional, Sustainable Computing
- • The results of a pentest
- • Friday - link-day #35 - Badasses, digital art, photography, cows and ideology and assembly
- • The psychology of rites of passage
- ► April (13)
- • We need your input!
- • Friday - link-day #43 - Photography, Browsers, Hacking and Reading
- • Lyrics for this Easter morning
- • How to reset you Kindle 3, even if the slide doesn't work
- • Inside the Kindle 3 (Latest Generation)
- • Friday - link-day #42 - The Geek Edition
- • Friday - link-day #41 - Fork, Berlin, Life, Girls and Microexpressions
- • No need for bashing Microsoft anymore
- • XSS so what
- • Friday - link-day #40 - Pascal, photography, fan films and fear
- • Friday - link-day #39 - War, Creationism, Geek behaviour, photography and Garbage
- • John 8: 1-11 - Punishment and second chances
- • Evangelisation: show your believe through choice
- ► May (15)
- • Joomla RSS Feed stats in Piwik
- • Really cool: Running Linux in your browser
- • Romans 12 - Part 3
- • Romans 12 - Part 2
- • Romans 12 - Our daily lives (part 1)
- • Friday - link-day #47 - Worlds, History, Compilers, Drugs and Intelligence and Personality
- • Development processes and quality code
- • Friday - link-day #46 - Abandoned, Curiosity, Hackers, PirateBox and Apocalyptic
- • Friday - link-day #45 - Luck, Illustrations, Body Language, TrueCrypt, Open Wireless
- • Read SIU messages using nHapi
- • Religion and Crisis: Recognizing and dealing with guilt
- • Friday - link-day #44 - Photography, Werewolves, Bookshelves, Trolls and The Future
- • On tolerance and ignorance
- • Green architecture: Economic
- • Scale a PDF using PdfSharp
- ► June (16)
- • Coffee
- • Green architecture: How green is your internet?
- • Friday - link-day #51 - HDR Images, Monastery, Too clean, Hacking and Photography
- • Use a GPU to crack pasword hashes fast
- • Using SSL over TCP as client and server with C#
- • Friday - link-day #50 - Multitouch, Comic Sans, Sons, Woman, Mugshots and Games
- • How to help open source without coding
- • Really cool: Play Doom in your browser
- • Romans 12 - Part 7
- • Friday - link-day #49 - Books, .Net, Drawings, Technology and Faith
- • Romans 12 - Part 6
- • Romans 12 - Part 5
- • Romans 12 - Part 4
- • Friday - link-day #48 - Photography, Bookcases, Scrum, Illustrations and PDF's
- • Musings on afterlife
- • MonoDevelop
- ► July (17)
- • Wisdom
- • NHapi documentation files
- • Types of rituals
- • The process of a ritual
- • Friday - link-day #56 - Hapiness, Linux, Truth, Worldviews and OS
- • Romans 12 - Part 12
- • Romans 12 - Part 11
- • Friday - link-day #55 - Retro WTF, Blank, disney, Hackers and Beach Art
- • Romans 12 - Part 10
- • Services and protocols aren't the same
- • The paradox of choice
- • Romans 12 - Part 9
- • Friday - link-day #54 - Love, E, MetaData, SLR and Apple
- • Friday - link-day #53 - Shadows, Google, Safety, IPhones and Church
- • Friday - link-day #52 - Computer science, Super Heros, Animation, Rock Paper and Scissors and Blue
- • Romans 12 - Part 8
- • Why modern IDE's aren't the best tools to learn coding
- ► August (10)
- • How to parse the HL7 DateTime with nHapi
- • Friday - link-day #60 - Surreal, Kinect and Blender, IBM, Organ and Mail
- • The Tetris effect
- • Friday - link-day #59 - Thanks, Photo's, Color, DOS and Openness
- • Friday - link-day #58 - Ebooks, Six, Fan Films, Cats and the Moon
- • Getting data from a HL7 ORU_R01 message
- • Using a client certificate with an SSL stream in C#
- • Physical object and rituals
- • Friday - link-day #57 - Disgruntled bomb, Architecture, Belief, Geek behaviour and Simpsons
- • Romans 12 - Part 13
- ► September (9)
- • Friday - link-day #65 - Airplanes, Passwords, Self-Esteem, Code and Girls
- • HL7 event grouping in version 2.4 (nHapi)
- • Friday - link-day #64 - Movies, Faces, Startup times, Resume and Happiness
- • 10 Programming lessons I learned in my 12 years in IT
- • Friday - link-day #63 - God, Art, Keyboard, Faces and Kermit
- • Friday - link-day #62 - Http status, Open PC, Photography, Movies, Illustrations
- • Friday - link-day #61 - Archimedes, Honeypot, Creativity, Elephants and Hackers
- • Social engineering: The wolf and the seven little goats.
- • On why we shouldn't use the term web service.
- ► October (8)
- • Friday - link-day #69 - Ghosts, Words, Linux, Fantasy and Lazarus
- • Ezekiel: The Pulp Fiction Verse
- • Friday - link-day #68 - Reflections, Linux, Spelling, Friends and X.509
- • Ezekiel 37
- • Friday - link-day #67 - Portraits, Gossip, Cool pictures, Design patterns and Privacy
- • Is it HTTP response splitting
- • Choices and age
- • Friday - link-day #66 - Animal, Guitarists, Locks, Pixels and Fridge
- ► November (10)
- • Ayn Rand and lotteries
- • Friday - link-day #73 - Passwords, Intelligence, Rain, Photography and Scared people
- • Friday - link-day #72 - Gifs, Movie descriptions, Symmetry, Architecture and Mario
- • The Great Dictator
- • A social network with respect for privacy
- • Snowwhite the trailer
- • Friday - link-day #71 - Life, Images, Tetris, Witches and Beacon
- • Security in IT-projects: The Story of the Three Little Pigs
- • Friday - link-day #70 - Bios, Future, God, 1% and Security
- • The Hl7 Implementation Support Guide
- ► December (9)
- • Almost Christmas: consumerism
- • Friday - link-day #78 - Colors, Mythical, Girls, Smurf and Pictures
- • Friday - link-day #77 - Searching, Microsoft, Music, Hacking and Volcanoes
- • Friday - link-day #76 - st. Nicolas, IE, Disney, Grandmother and Games
- • Best of 2011
- • Santa
- • Friday - link-day #75 - Photography, Forgiveness, Games, Colors and Computer science
- • YaCy: P2P search engine
- • Friday - link-day #74 - Creationism, Memmories, Bossie award, Easter and Contrast
- ► January (20)
- ► 2010 (174)
- ► January (11)
- • Forgiveness: the cost of forgiving
- • Security rule #7: Dont't let the ends outweigh the means
- • Security rule #6: Help users protect themselves
- • Security rule #5: Security starts at business level
- • Security rule #4: Try to use standard solutions
- • Security rule #3: It's all about data and risk
- • Security rule #2: You can't outsmart an attacker
- • Security rule #1: Don't trust data
- • Unbelievable: biblical text on weapons
- • Security: session management the right way
- • 20 wise programming lessons
- ► February (6)
- ► March (18)
- • How to define a good service interface
- • Changing imperonation user at runtime
- • Coding fun: statistical problem
- • Easter and new years resolutions
- • Easter eggs and security
- • .Net and Oracle webservices
- • Why use MQ instead of webservices in webinterface backoffice communication
- • In basis all religions are the same. Is that true?
- • The security dilemma revisited.
- • How to create an application supporting multiple HL7 version using nHapi
- • Really cool: run java on .Net with IKVM
- • Pay it forward
- • How do you see other religions
- • The Baseballs make really bad songs sound really good
- • Comics and theology
- • On why christians should vote left-wing
- • Thinking like a hacker
- • Flyleaf
- ► April (22)
- • nHapi example
- • The new OWASP Top 10
- • The theology of Caprica
- • Perron11.nl a site using the MVC framework
- • HL7 version 2.3 problem with too many Patient ID's
- • Single sign on with openid
- • Security isn't all about defending
- • Movie: Son Of Man
- • A song for Easter: Thief
- • Slovo - Nommo
- • How to build quality appllications: learn from UNIX
- • REST and SOAP: what and when
- • Do all religions essentially come down to the same thing (part II)
- • Design changes
- • The beginning of prayer is silence
- • Security is a quality attribute
- • Good Friday - Lacrimosa
- • Integrating webapplications and sites
- • Leadership style: behavior versus result
- • Bypassing the .Net ValidateRequest filter
- • The value of good documentation
- • Software architecture and new technology
- ► May (14)
- • New phishing attack
- • German court convicts someone for having a wireless network without a password
- • HL7 escape characters and nHapi
- • The theology of Sophie Scholl: Die letzten tage
- • IBM MQ Reason codes
- • Two extension methods
- • Nostalgia: my first password cracker
- • Wifi with Mandriva 2010.0
- • Are Christians allowed to be rich?
- • Measuring code quality
- • Estimation and politics
- • This code should be removed
- • Legal and free music with Jamendo
- • God exists Quietly
- ► June (12)
- • VS2008 project using private unittests don't build with TFS2010
- • Blenders open movie projects
- • Java forever - the movie trailer
- • Persistent messages with IBM MQ
- • Gnoosic helps you find new bands
- • Back from the Holy Land
- • Judging doesn't have to be negative
- • Less posts due vacation
- • The need for postmodern thinking in software development
- • Robtex - internet swiss army knife
- • Listen to your user... Or not?
- • Jars of Clay - Flood
- ► July (14)
- • SDL: Threat Modeling tool vs. Threat Analysis tool
- • Friday - link-day #4 - GUID in debate, philosophy problems, types of believe, code quality, rainbowtables
- • Confessions on life, death and God
- • Hole 196: WPA2 security vulnerability
- • Friday - link-day #3 - UI based scripting, view states, caffeine, blow dryers and money for bugs
- • New review process for Firefox Addons
- • Friday - link-day #2 - Cloud security, quick coding, atheism and photography
- • Remembering strong passwords
- • Downtime
- • Should unit tests use a database connection to test stored procedures?
- • Friday - link-day #1
- • How secure is your password really?
- • Psalm - hope in dark times
- • Grooveshark - Online free music
- ► August (13)
- • Microsoft puts SDL under a Creative Common license
- • Social Steganography: A different way of privacy control
- • Creating Hl7 ORU_R01 messages with NHapi
- • Friday - link-day #8 - open source, photography, playing Doom, thinking about God, security and usability
- • Why use the fire and forget pattern?
- • Are woman better at social engineering?
- • How to show possibilities in AutoCompleteExtender without user input
- • Friday - link-day #7 - view states, nature photography, classical music, NTLM and religion and kids
- • Why do people work on open source?
- • Friday - link-day #6 - battleground God, negative thoughts, photography, jokes and one time passwords
- • How to render SSL useless
- • Required password change policy - still a good idea?
- • Friday - link-day #5 - comic, executable packer, e-books, security, ice-cream
- ► September (24)
- • Staring at the sun - a must read for pastors
- • TFS2010: Hotfix for error TF270015
- • Problems with comments
- • Evolution vs. Creationism is a non-discussion
- • Elevation of Privilege: The Card Game
- • The tenth of october 2010: 42-day
- • What is coaching? The difference between coaching and mentoring.
- • Friday - link-day #12 - Parable, Bed and society, before death, penguin dieting and a game
- • Microsoft free e-book for moving to VS2010
- • Architecture and coaching
- • This is overreacting to a field trip to a mosque
- • Social-engineering report from DEFON 18
- • New site for Slot and Partners
- • The pratical use of a Sequence Diagram
- • Friday - link-day #11 - viruses, Linux, security and DOS, photography, makeup and face-detection and sacred text
- • Own your space - a security book for teens
- • Are woman better at social engineering? Revisited.
- • Friday - link-day #10 - hitchhiker's guide, online tools, academics and games, reading and forgiveness
- • Crowd-sourced Radiohead live DVD
- • Microsoft released Enhanced Mitigation Experience Toolkit v2.0
- • CLASP and SDL compared
- • Red heifer, the Good Samaritan and morals
- • OWASP CLASP and Secure Coding Practices
- • Friday - link-day #9 - Linux gaming, keyloggers, secure filemount, Microsoft loves open source and science and a Stradivarius
- ► October (11)
- • Friday - link-day #17 - Trust, security, music and learning, documentation and social experiments
- • Open source threat modelling tools
- • How to verify the security of your application: the OWASP standard
- • Friday - link-day #16 - distributed, programming, SSID in hiding, movies and scores
- • Downtime
- • Friday - link-day #15 - exploits, great developers, movie and smartness
- • Usb-drive as a threath for security
- • Correct and usefull error messages - one of the hardest things in software development.
- • Friday - link-day #14 - Games, open source, Linux, programs and idleness
- • Friday - link-day #13 - lockpicking, beep, Sartre, peanuts, photography and biometrics
- • Happy 42-day!
- ► November (11)
- • Is Atheism purely rational?
- • Bacterial based storage: store your data on E-coli
- • Diaspora open to invitees
- • Friday - link-day #21 - Linux and domination, security verification, steampunk girls, autumn and liars
- • Abuse, Violence, Gender and Submission
- • Linux will soon become much faster
- • Friday - link-day #20 - Mono, lockpicking, sanity, portraits and penguin diet
- • Power - the way to deal with it
- • Friday - link-day #19 - processes, Ubuntu and Windows 7, Photography, love your Pastor and passwords
- • Friday - link-day #18 - Skills, Linux and Microsoft, OO, Strangers and being from Mars
- • Content Security Policy - A new countermeassure against XSS and CSRF
- ► December (18)
- • Calvin and Hobbes on parenting
- • Coaching: Choosing the right test
- • What is HL7 and nHapi?
- • Broke 1000 unique visitors
- • A movie for Christmas: Eternal Sunshine of the Spotless Mind
- • Suckerpunch
- • Our Daily Bread
- • Friday - link-day #26 - Problems, sound sculptures, zombies, numbers and therapy
- • Friday - link-day #25 - Conformism, musicscores, programmers, domination, photography
- • Best of 2010
- • Evangelism on Internet, part 3: What's next?
- • Friday - link-day #24 - Hacking, photography, pac-man, myths and doubters
- • Evangelism on Internet, part 2: How?
- • Evangelism on Internet, part 1: Why?
- • Friday - link-day #23 - Design, Word format, Sound recordings, Photography, Theoretical museum
- • IE's protected mode broken
- • Dealing with the insider threat
- • Friday - link-day #22 - Steampunk, Coin tosses, Tetris and flashbacks, Vulnerable Linux and Photography and the Law
- ► January (11)
- ► 2009 (12)
- ► November (8)
- ► December (4)
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Architecture, security and coding Ansi C:
Nostalgia
Architecture, security and coding Ansi C:
Nostalgia| Ansi C: Nostalgia |
| Written by Division by Zero |
| Saturday, 21 November 2009 12:30 |
|
I was looking for some code examples I want to put here. While looking I came across an old application I wrote about 11 years ago. Ansi C nostalgia... I missed you text video memory address B800! Here are some code snippets for nostalgic reasons. It was a console application with multiple layers to draw on.
void initTextMode()
{
// Create a pointer to the text memory address
screen = (char *) MK_FP(0xB800, 0);
}
void cursor_on()
{
asm mov AH, 3
asm xor BX, BX
asm int 10h
asm and CH, 1Fh
asm mov AH, 1
asm int 10h
}
void cursor_off()
{
asm mov AH, 3
asm xor BX, BX
asm int 10h
asm or CH, 20h
asm mov AH, 1
asm int 10h
}
void drawBuffer()
{
for (char i=0; i <= currentLayer; i++)
for (int y=0; y < BufferSize; y++)
if (layers[i][y] != 0)
screen[y] = layers[i][y];
}
Yeah... I know... there are probably better ways of doing this, but I was about 17 years at the time. Related Articles |
Computer science is no more about computers than astronomy is about telescopes. - Edsger Dijkstra
