I Wrote a Commodore 64 Book Commodore Tutorials 2025-10-09 | In this video I talk about my new book "Making Games For The Commodore 64 In Assembly Language". I show some of the contents and the print quality.The book can be ordered on my profile page at lulu.com (scroll to the bottom of the page). There are three different products: the physical book, the eBook and a blank (lined) notebook for those who like to take notes while reading.lulu Bookstore:lulu.com/spotlight/boardb
Behind the Scenes of My New Book - C64 Building Blocks Commodore Tutorials 2026-08-02 | This is a quick teaser video to show some of the content of my upcoming book about programming games for the Commodore 64.
Sprite-Character Collision: What Happens Next? Commodore Tutorials 2025-11-28 | This video is the second video in a mini series about how to make a small test game for the Commodore 64. This video explains how we can make something happen when sprites collide with characters on the screen. I call this character reaction.The code can be downloaded from my Google Drive here:drive.google.com/file/d/1iM7w3WHfpuDu3Od0Ivg7RJYqRXXW6LGH/viewMy book Making Games For The Commodore 64 In Assembly Language is available on the lulu Bookstore:lulu.com/spotlight/boardbyoutu.be/U_UdZZedzDg?si=-d_GEjzd52HaYdyC00:00:00 Introduction00:00:34 A quick repetition about the screen setup00:01:45 Making the coin disappear00:05:42 Character collision00:10:05 Character reaction00:12:37 Updating the coin counter00:15:47 Changing the sprite graphic00:16:07 Draw exit door00:17:41 Resetting the game00:18:14 Closing words
How To Do Sprite-Character Collision on C64 Commodore Tutorials 2025-11-21 | This is the first video in a mini series about how to make a small test game for the Commodore 64. The skill level is intermediate, so I don't explain all the basics of Assembly language in the video. This first video explains how sprite-character collision works.The code can be downloaded from my Google Drive here:drive.google.com/file/d/1iM7w3WHfpuDu3Od0Ivg7RJYqRXXW6LGH/view?usp=share_linkMy book Making Games For The Commodore 64 In Assembly Language is available on the lulu Bookstore:lulu.com/spotlight/boardbyoutu.be/rEGZX2IbHjg?si=nF7L1puN-epumtAQyoutu.be/3ewOkHyUl9c?si=P6b8mUHw2BwBfALN00:00:00 Introduction00:00:47 Explaining the test game and the process00:02:43 Sprite position and size + Screen columns and rows00:09:00 Different sprite-character collisions to check00:11:02 Finding the sprites position in relation to the characters00:13:27 Screen tables00:15:26 Handling the default offsets (subtract start positions)00:17:14 Translating the sprite position into row and column numbers00:23:51 Explaining the code00:27:38 Reading joystick subroutine (sprite movement)00:29:02 CheckCharCollision macro00:30:23 checkCharCollision subroutine00:34:45 Checking screen codes00:37:10 Closing words
Book Updates November 2025 Commodore Tutorials 2025-11-10 | This is a short video where I talk about the future of book corrections for the book Making Games For The Commodore 64 In Assembly Language. I show where you can find the document that shows what corrections have been made.github.com/baardbi/makec64gamesbookboardbtutorials@gmail.com
Commodore 64 Screen RAM Explained Commodore Tutorials 2025-11-07 | For beginners of Assembly Language programming there are many challenges. Changing screen RAM or knowing where to put it can be confusing. This video will show you how to do it, and also look at some issues to avoid.In this video I also talk about three minor mistakes I made in the book I wrote. I show what mistakes it was, and on what pages those mistakes are.lulu Bookstorelulu.com/spotlight/boardbCommodore 64 memory map (Joe Forster)sta.c64.org/cbm64mem.html00:00:00 Introduction00:01:23 Book corrections00:05:11 Looking at the Commodore 64 memory00:10:18 A simple test program00:11:55 Inspecting the C64 memory using a monitor00:15:20 The bits inside $d01800:20:12 Second test program00:21:04 Issues to avoid when changing screen RAM00:27:58 Explaining the code example00:34:55 Closing words
How does sprite priority work on the Commodore 64? Commodore Tutorials 2025-10-30 | In this video I will show you what sprite priority is, and how we can use it in a game. I also talk about sprite overlay, and how we can use SpritePad to create detailed and colorful sprite graphics.00:00:00 Intro00:00:35 Making sprites appear behind the background00:05:48 Change bits using Exclusive OR00:07:56 Sprite layering00:09:28 Sprite overlay00:12:00 Sprite overlay in SpritePad00:14:26 A simple code example00:17:00 Closing Words
Commodore 64 Extended X-Axis Commodore Tutorials 2025-10-24 | This video will show you how to move sprites on the Commodore 64 over the extended X-axis on the screen.If you want to buy the book, it's available on the lulu Bookstore:lulu.com/spotlight/boardb00:00:00 Intro00:01:08 Welcome00:04:10 An example of "normal" sprite movement00:06:33 Some quick repetition about the screen size00:07:40 Memory address $d01000:12:01 An example of moving across the extended border00:13:58 Looking at the code to handle $d01000:18:35 Closing Words
C64 Scrolling Part 3 Commodore Tutorials 2025-02-07 | This is the third and final episode of a mini series about how to make scrolling work on the Commodore 64, using Assembly language.You can download the code for this video here:drive.google.com/file/d/1twkzCA10LiP-bGk2l6CwFc72UZE3Dt4j/view?usp=sharingC64 Scrolling Simulatordrive.google.com/file/d/14NN4cm1gpqK48dHv1P50PaXCH1oQsU9i/view?usp=sharingThis is something I call a scrolling simulator. It’s a screen you can scroll pixel by pixel by pressing the S key on the keyboard. The point is to see when the screen RAM shifts from $0400 to $0c00 and vice versa. You’ll notice that this happens every eighth time you press the S key.6502 Instruction Set (Mnemonics)http://www.6502.org/tutorials/6502opcodes.htmlMusic:A Computer In My Backpack (Linus Åkesson)00:00:00 Intro00:00:16 Welcome00:01:57 A Quick Repetition00:03:32 Exporting Data From CharPad00:06:43 Code Performance (Cycles)00:15:45 Measuring Code Time With Raster Interrupts00:22:02 Explaining the Code00:58:01 Closing Words
C64 Scrolling Part 2 Commodore Tutorials 2025-01-25 | This is the second episode of a mini series about how to make scrolling work on the Commodore 64, using Assembly language.sta.c64.org/cbm64mem.html00:00:00 Intro00:00:03 Welcome00:00:49 Looking at NES Scrolling00:02:16 The Camera System00:06:56 Looking at the Camera System in CharPad00:10:01 Repetition about Moving Screen RAM00:12:20 Changing Screen But Not Color RAM00:15:19 Changing the Screen 100:18:07 A Bad Scrolling Example00:19:43 Changing the Screen 200:23:25 Comparing Scrolling to Static Levels00:27:49 Drawing the Scrolling Level00:30:11 Making Map Tables00:36:34 Closing Words
C64 Scrolling Part 1 Commodore Tutorials 2025-01-16 | This is the first episode of a mini series about how to make scrolling work on the Commodore 64, using Assembly language.sta.c64.org/cbm64mem.html00:00:00 Intro00:00:22 Welcome00:01:11 Looking at Some C64 Games00:04:59 Repetition - Screen Ram and Color Ram00:09:10 How to Change the Location of Screen Ram00:15:06 The Screen Setup and VIC Banks00:24:19 What Happens When We Change Screen Ram?00:28:32 Looking at the Code to Change Screen Ram00:36:45 Repeating How the Screen Setup Works00:37:58 Adjusting the Borders00:44:37 Adjusting the Horizontal Border and Scroll Bits00:52:17 Closing WordsIntro Music:Flimbo's Quest - Reyn Ouwehand
C64 Painting the Screen Commodore Tutorials 2024-12-31 | In this video we look at how we can paint backgrounds or level graphics using tiles on Commodore 64.Memory Map:sta.c64.org/cbm64mem.htmlScreen Codes:sta.c64.org/cbm64scr.htmlColor Codes:sta.c64.org/cbm64col.htmlCharPad + SpritePad (Combo Pack):subchristsoftware.itch.io/c64-pro-editions00:00:00 Intro00:00:47 Opening Words00:01:49 Looking at Some Basics00:02:35 The Screen (Screen RAM & Color RAM)00:10:20 C64 Screen in CharPad00:13:04 The Tile Draw Logic00:19:17 Tiles in CharPad00:31:02 Looking at the Tile Routine in Slow Motion00:33:07 Looking at the Assembly Code00:37:54 Room Library (Loading a Screen)00:44:12 Tile Library (Drawing a Tile)00:53:08 Tileset01:05:05 Looking at Room Loading in Real Time01:06:03 Closing Words01:06:32 OutroThe example code can be downloaded here:drive.google.com/file/d/1niVXL808GB3J9oxHafdS3ur9tB0MxrRA/view?usp=sharingMusic:AI 2 - Vibe MountainOcean Loader 2 - Martin Galway
C64 Sprite Animation Commodore Tutorials 2024-12-13 | This video was made in response to a comment I got earlier this year, concerning the C64 video about sprite animation. Hopefully this new and improved video will be more clear and motivational.Download Code Example:drive.google.com/file/d/1rZCBB5UcQCh5vLs5IF0Gys3ZLp1EeZLz/view?usp=sharingLemon 64 Forum:lemon64.com/forumNESmaker Forum:nesmakers.com
C64 Assembly Programming Part 36 – Bitmap Graphics Commodore Tutorials 2024-05-08 | In this episode we look at a graphics mode on the Commodore 64 called bitmap graphics, and how we can display our own pictures using that method.Standard Bitmap Modec64-wiki.com/wiki/Standard_Bitmap_ModeMultipainthttp://multipaint.kameli.netThe Computer Chronicles - Commodore 64 (1988)youtu.be/lL70gLaouDQ?si=R2m7As4ELcDf724PKick Assembler Manual (Bitmap Graphics)http://theweb.dk/KickAssembler/webhelp/content/ch12s02.htmlCommodore 64 Memory Mapsta.c64.org/cbm64mem.htmlNoice Kick Assembler Memory Viewerhttps://kickassmemoryview.insoft.se
C64 Assembly Programming Part 35 – Reading From Diskette and Changing VIC Banks Commodore Tutorials 2024-05-07 | In this episode we look at how we can read from diskette on the Commodore 64. We also take a look at how we can change the VIC bank, and why we would want to do that.Code example:drive.google.com/file/d/1zSoZh_-0q6l2eJA9l8DEoTK2cs36GEq3/view?usp=sharingCommodore 64 Memory Map:sta.c64.org/cbm64mem.htmlCommodore 64 Standard KERNAL Functions:sta.c64.org/cbm64krnfunc.htmlDroid64 (macOS):droid64.sourceforge.netDirMaster (Windows):style64.org/dirmaster
C64 Assembly Programming Part 34 – Playing Music and Reading Keyboard Commodore Tutorials 2024-05-05 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbThis is the final episode in our course, but as you know there will be two more bonus episodes.In this episode we look at how we can play music in our game and how we can read input from the keyboard.Lemon64 Forumlemon64.com/forumKick Assembler Musichttp://www.theweb.dk/KickAssembler/webhelp/content/ch12s03.htmlSidreloc (Linus Åkesson)linusakesson.net/software/sidreloc/index.phpA Computer In My Backpack (Linus Åkesson)PS! This is a music file we can use for this course in our test games. Please do not use this music in a game you are going to publish, without asking Linus first.linusakesson.net/music/sidstuff/backpack.phpHigh Voltage SID Collectionhttps://hvsc.deCommodore 64 Standard KERNAL Functionssta.c64.org/cbm64krnfunc.htmlJoe's Crazy Adventure Codedrive.google.com/file/d/1UFO852AKmHXaztkThFmi1vtQOnjHrZfr/view?usp=sharing00:00 Introduction01:01 Playing Music36:57 Reading Input from the Keyboard
C64 Assembly Programming Part 33 – The HUD Commodore Tutorials 2024-05-04 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbWhat is the HUD? How can we make our own, and how does it work? We take a look at these things in today's episode.HUDen.wikipedia.org/wiki/HUD_(video_games)
C64 Assembly Programming Part 32 – Room Info and Create Sprite Commodore Tutorials 2024-05-03 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbIn this episode we look at how we can load different things into our rooms, and how a special subroutine called createSprite in the Sprite Library is going to help us do that.01:30 Create Sprite16:51 Room Info Tables18:55 Load Room32:00 Sprite Info Tables
C64 Assembly Programming Part 31 – Sprite Collision and Actions Commodore Tutorials 2024-05-02 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbIn this episode we look at how we can check for collisions between sprites using a bounding box (hitbox). We also see how we can make an action system for other sprites, so we can make enemies that move or perform actions at the same time as the player.Sprite stretch exampledrive.google.com/file/d/1yMUpagr_Lmxgr6avqTuNejh6i9AKDrDA/view?usp=sharingSprite collision exampledrive.google.com/file/d/1DgNWiY9YxGKDK8oM5VsaEMQick0-IMe-/view?usp=sharingSoftware Sprite Collisioncodebase64.org/doku.php?id=base:simple_software_sprite_to_sprite_collisionHardware Sprite Collisioncodebase64.org/doku.php?id=base:simple_hardware_sprite_to_sprite_collisionSprites Code Examplescodebase64.org/doku.php?id=base:sprites00:25 Stretching Sprites (Double Width / Double Height)03:48 Sprite Collisions35:38 Sprite Actions
C64 Assembly Programming Part 30 – Sprite Animation Commodore Tutorials 2024-05-01 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbPS! I made a new and improved video about sprite animation:youtu.be/3QiTiBRkFRgHow can we animate sprites on the Commodore 64, and how can we make a system that keeps track of animations for multiple sprites? We look at some examples of that in today's episode.Commodore 64 Sprites:c64-wiki.com/wiki/Sprite
C64 Assembly Programming Part 29 – Char Collision and Reaction Commodore Tutorials 2024-04-30 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbIn this episode we look at how we can make the sprite check character collision, and how we can make different things happen when we collide with different chars.00:00 Char Collision Library40:00 Reaction Library
C64 Assembly Programming Part 28 – Input and Sprite Library Commodore Tutorials 2024-04-29 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbWe take a look at how we can include joystick input and sprite movement together with our previous code. This will result in something that is starting to resemble a game.Example code:drive.google.com/file/d/16kjeIpQ-v_DGF-21bdB4_svQ96hlxo-C/view?usp=sharing00:00 Project Updates (new tables, constants and variables)21:38 Sprite Library33:08 Input Library
C64 Assembly Programming Part 27 - Room Library Commodore Tutorials 2024-04-28 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbIn this episode we look at how we can use our tile library from last time to draw our levels (rooms). We do that by making a new library, the Room Library.Code Example:drive.google.com/file/d/1gtT00b_R-92gUzOoQHSlmVNN5gv5jTtA/view?usp=sharing00:00 Room Tables and Variables17:40 Room Library
C64 Assembly Programming Part 26 - Tile Library Commodore Tutorials 2024-04-27 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbIn this episode we look at the routines to draw characters and tiles from CharPad. We also make our first macros.Excel ScreenTable Generator:drive.google.com/file/d/1xvFrPhaZNM8Ua8rmXN1y-urfgp3lUvSB/view?usp=sharing00:00 Screen Tables and Placing Characters on Screen41:23 Our First Macros (DrawChar & DrawTile)46:25 Tile Library
C64 Assembly Programming Part 25 - System and Interrupt Libraries Commodore Tutorials 2024-04-26 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbIn this episode we look at how we can set up the SYSTEM and INTERRUPT libraries. This will create a base for the rest of our code.00:00 System Library24:35 Interrupt Library
C64 Assembly Programming Part 24 - Getting Started Commodore Tutorials 2024-04-25 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbWhat should you do first? Where do you begin? In this video we look at how you can get started with your game project.Commodore 64 Memory Map:sta.c64.org/cbm64mem.htmlKick Assembler Manual:http://theweb.dk/KickAssembler/webhelp/content/cpt_Introduction.html
C64 Assembly Programming Part 23 - Raster Interrupts Commodore Tutorials 2024-04-24 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbWhat are raster interrupts? How does it work, and why do we use it? We take a look at those things in this video.Example Code Download:drive.google.com/file/d/12WMjZ39NQDj0rjMUdFcq_KQDuJ-Sto96/view?usp=sharingRaster interrupt:c64-wiki.com/wiki/Raster_interruptRaster Interrupts and How to Play SID Music in Code:youtu.be/LpG9gqPtNLo?si=5swxBSc9j8AcIlEtHow a TV Works in Slow Motion - The Slow Mo Guys:youtu.be/3BJU2drrtCM?si=72wSNgpCEySQeew4Rasters and Cycles - Dustlayer:dustlayer.com/vic-ii/2013/4/25/vic-ii-for-beginners-beyond-the-screen-rasters-cycle
C64 Assembly Programming Part 22 - Screen Setup and KERNAL Commodore Tutorials 2024-04-23 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbWe look at how we can set up our screen exactly how we want it, including our custom character set. We also take a look at some different, more advanced, setup techniques for our screen. The KERNAL is a part of the C64 operating system, and there are a ton of helpful things in there. We take a look at a few examples of that in this episode.Commodore 64 PETSCII Codes:sta.c64.org/cbm64pet.htmlCommodore 64 Standard KERNAL Functions:sta.c64.org/cbm64krnfunc.htmlCommodore 64 Memory Map:sta.c64.org/cbm64mem.html00:13 Screen Setup37:30 The KERNAL
C64 Assembly Programming Part 21 - Stack and Zero Page Commodore Tutorials 2024-04-22 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbIn this episode we look at two things that will be very helpful to us, the Stack and Zero Page. These things can be a little complicated at first, so I highly recommend playing around with this to get some practice.The Stack:c64-wiki.com/wiki/StackZero Page:c64-wiki.com/wiki/Zeropage00:28 The Stack25:09 Zero Page
C64 Assembly Programming Part 20 - Macros and Subroutines Commodore Tutorials 2024-04-21 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbWe look at what macros and subroutines are in Assembly language, and how we can use them in our projects.Subroutines:c64-wiki.com/wiki/SubroutineKick Assembler Macros:http://www.theweb.dk/KickAssembler/webhelp/content/ch07s02.html00:00 Subroutines23:45 Macros
C64 Assembly Programming Part 19 - Project Setup Commodore Tutorials 2024-04-20 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbWe take a look at how we use the import function in Kick Assembler, and connect the memory map file with the files from our project folder. We also take a look at how the finished game is set up, as well as looking at how we can use a config file.Importing source code:http://theweb.dk/KickAssembler/webhelp/content/ch03s08.htmlImporting data:http://theweb.dk/KickAssembler/webhelp/content/ch03s09.htmlNoice Kick Assembler Memory Viewerhttps://kickassmemoryview.insoft.se00:00 Memory Map18:46 Noice Kick Assembler Memory Viewer27:00 The HUD33:48 A Project Overview (the finished game)
C64 Assembly Programming Part 18 - Memory Map Commodore Tutorials 2024-04-19 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbPlanning our memory usage... Where do we put our sprites or the character set in memory? How do we know how much space the tileset takes up in RAM? We look at these things and more in today's episode.SIDPLAY - Music Player (macOS):http://www.sidmusic.org/sidplay/macSidplay 3 - Music Player (Windows)https://csdb.dk/release/?id=221083&show=notesMachine Language for the Commodore 64 and other Commodore Computers - by Jim Butterfieldproject64.c64.org/Software/mlcom.pdf
C64 Assembly Programming Part 17 - CharPad Commodore Tutorials 2024-04-18 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbIn this episode we look at how we can make our own background graphics using the application CharPad. We also see how we can use our custom character set on the Commodore 64.CharPad + SpritePad combo pack:subchristsoftware.itch.io/c64-pro-editionsCommodore 64 Character Set:c64-wiki.com/wiki/Character_set00:00 Using a Custom Character Set on the Commodore 6411:33 CharPad Tutorial
C64 Assembly Programming Part 16 - Character Set Commodore Tutorials 2024-04-17 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbWhat is a character set on the Commodore 64? Why do we need it and how do we use it? We take a close look at these things, as well as looking at how we can make our own to make background graphics, and how much space that takes up in memory.Character Set:c64-wiki.com/wiki/Character_setCharPad + SpritePad combo pack:subchristsoftware.itch.io/c64-pro-editionsCommodore 64 Screen Codes:sta.c64.org/cbm64scr.html
C64 Assembly Programming Part 15 - Reading Joystick Input Commodore Tutorials 2024-04-16 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbIn this episode we take a look at how the joystick works on the Commodore 64 and how we can read the joystick input to move a sprite on the screen.Example Code and Sprite Graphics:drive.google.com/file/d/1Px3FdiJQZTHweSgJR0BjauRjRd95ZCHD/view?usp=sharingThe 8-Bit Guy - How Vintage Game Controllers Workedyoutube.com/watch?v=WVnwfwXnNiQThe Commodore 64 Joystick:c64-wiki.com/wiki/JoystickCommodore 64 Memory Map:sta.c64.org/cbm64mem.html00:00 The Commodore 64 Joystick04:44 A Simple Joystick Example09:00 Configuring Joystick Input in the VICE Emulator14:40 A Detailed Look at How the Joystick Works20:53 Joystick Reading Routine42:19 Moving a Sprite with Joystick Input
C64 Assembly Programming Part 14 - SpritePad Commodore Tutorials 2024-04-15 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbWe take a closer look at SpritePad, the application we will use to make sprite graphics. Then we make our sprite appear on the C64 screen.SpritePad + CharPad combo:subchristsoftware.itch.io/c64-pro-editionsCommodore 64 Sprites:c64-wiki.com/wiki/SpriteCommodore 64 Memory Map:sta.c64.org/cbm64mem.html00:00 Repetition08:38 SpritePad38:33 Making Our Sprite Appear on the Screen
C64 Assembly Programming Part 13 - Sprites Commodore Tutorials 2024-04-14 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbWhat are sprites? How do they work on the Commodore 64? How are they stored in RAM? How can we make our own sprites? We take a look at all these things in today's episode.Commodore 64 Sprites:c64-wiki.com/wiki/SpriteSpritePad + CharPad:subchristsoftware.itch.io/c64-pro-editionsCommodore 64 Memory Map:sta.c64.org/cbm64mem.htmlDustlayer - Beyond the Screen:dustlayer.com/vic-ii/2013/4/25/vic-ii-for-beginners-beyond-the-screen-rasters-cycle
Not Opcodes. Im Sorry Commodore Tutorials 2024-04-14 | So I have been calling LDA, STA and the other three letter commands "Opcodes". That is not correct. They are called "Mnemonics". This video explains my mistake. This shouldn't have happened, since I am so meticulous about using the correct terms.... I'm really sorry.
C64 Assembly Programming Part 12 - The Screen Commodore Tutorials 2024-04-13 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbIn this episode we take a look at how the screen on the Commodore 64 is set up and how we can place characters at specified positions. We also look at how the we can change the color of the characters.Screen Codes:sta.c64.org/cbm64scr.htmlColor Codes:sta.c64.org/cbm64col.htmlC64 Demo: Border Intro by Hokuto Force:youtu.be/X4X9RyOP6Vg?si=ufLxIWIuLx3A-AO_
C64 Assembly Programming Part 11 - CPU & Bit Manipulation Commodore Tutorials 2024-04-12 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbWe take a closer look at what's inside the 6510 CPU, and we look at how we can manipulate individual bits inside a byte.Processor Flags:c64os.com/post/6502instructionsBit Manipulation:dustlayer.com/cpu-6510-articles/2013/4/19/math-basics-part-3-bit-manipulation6502 Opcodes:http://www.6502.org/tutorials/6502opcodes.html01:45 Program Counter (PC)13:38 CPU Flags (Status Register)19:25 Bit Manipulation (Bitwise Instructions)
C64 Assembly Programming Part 10 - Math, Loops and Branching Commodore Tutorials 2024-04-11 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbWe take a look at how we can perform some very basic math in Assembly Language and how we can create loops to repeat a piece of code. In order to make our code do decisions we use branching.02:20 Adding and Subtracting09:50 Loops15:35 Branching
C64 Assembly Programming Part 9 - Assembler & Mnemonics Commodore Tutorials 2024-04-10 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbPS!!!! I was recently corrected by someone who knows what they are talking about. I have been calling LDA, STA and the other three letter commands "Opcodes". That's not correct. They are called Mnemonics and the corresponding number code in machine language is called an Opcode. I apologize for the confusion this may have caused.What is the assembler and how does it work? In this episode we take a closer look at that, as well as taking a closer look at opcodes.Opcodes:http://www.6502.org/tutorials/6502opcodes.htmlNoice Kick Assembler memory viewer:https://kickassmemoryview.insoft.se
C64 Assembly Programming Part 8 - Tables Commodore Tutorials 2024-04-09 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbWe take a look at how tables work in 6510 Assembly Language. We also learn some new opcodes that we need when working with tables.
C64 Assembly Programming Part 7 - Basic Upstart Commodore Tutorials 2024-04-08 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbIn this episode we take a closer look at what actually happens when we start our program / game. We learn what BasicUpstart2 means and how the different BASIC commands help us.I simplified the "10 SYS 2064" a bit in this video. If you want to read more about the details on how the bytes are actually set up, you can read this great article:michaelcmartin.github.io/Ophis/book/x74.htmlCommodore 64 memory map:sta.c64.org/cbm64mem.html
C64 Assembly Programming Part 6 - Variables & Constants Commodore Tutorials 2024-04-07 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbIn this episode we look at what variables and constants are and how we can use them. We also take our first look at an example of Assembly code.
C64 Assembly Programming Part 5 - Number Systems Commodore Tutorials 2024-04-06 | ----------------PS!!! There's a mistake in the chart for the different addressing modes. Immediate and Absolute are mixed up. I'm sorry about that.----------------My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbIn this video we take a look at the different number systems we can use when programming in Assembly Language, and when to use the different number systems.Here's a good article on number systems when programming in Assembly Language:dustlayer.com/cpu-6510-articles/2013/4/18/math-basics-number-systemsCommodore 64 Memory Map:sta.c64.org/cbm64mem.html
C64 Assembly Programming Part 4 - Memory (RAM) Commodore Tutorials 2024-04-05 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbWe take a look at the Commodore 64 RAM.
C64 Assembly Programming Part 3 - The Basics Commodore Tutorials 2024-04-04 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardb00:00 Introduction to Assembly Language07:30 Inside the Commodore 6410:40 The 6510 CPU
C64 Assembly Programming Part 2 - Dev Setup (macOS) Commodore Tutorials 2024-03-22 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbInstalling and setting up the development environment for macOS:- Java- Kick Assembler- Sublime Text- VICE
C64 Assembly Programming Part 2 - Dev Setup (Windows) Commodore Tutorials 2024-03-22 | My book Making Games For The Commodore 64 In Assembly Language is the perfect companion resource to this video series:lulu.com/spotlight/boardbInstalling and setting up the development environment for Windows:- Java- Kick Assembler- Sublime Text- VICE
