#letscode — Public Fediverse posts

Let's Code MS DOS 0x38: Huge Pointers in Turbo C

https://peertube.v1.root42.de/w/gkdPWq83sBuAy9smk6YfUP

Let's Code MS DOS 0x38: Huge Pointers in Turbo C

https://peertube.v1.root42.de/w/gkdPWq83sBuAy9smk6YfUP

Let's Code MS DOS: 0x37 Rainbow Surf Analysis

https://peertube.v1.root42.de/w/rbiHRbvDRuFt5YJbeW1YSg

Let's Code MS DOS: 0x37 Rainbow Surf Analysis

https://peertube.v1.root42.de/w/rbiHRbvDRuFt5YJbeW1YSg

Let's Code MS DOS 0x36: Sprites and Occlusion

https://peertube.v1.root42.de/w/qTtXVoAkHJ2Fu256Pwtbec

Let's Code MS DOS 0x36: Sprites and Occlusion

https://peertube.v1.root42.de/w/qTtXVoAkHJ2Fu256Pwtbec

Let's Code MS DOS 0x35: Sprites & Scaling

https://peertube.v1.root42.de/w/8j9XmpB8GxsuBepe23jZSU

Let's Code MS DOS 0x35: Sprites & Scaling

https://peertube.v1.root42.de/w/8j9XmpB8GxsuBepe23jZSU

Let's Code MS DOS 0x34: VGA Blending

https://peertube.v1.root42.de/w/eXwh1XPdi1ixdC8p7iePUj

Let's Code MS DOS 0x34: VGA Blending

https://peertube.v1.root42.de/w/eXwh1XPdi1ixdC8p7iePUj

Let's Code MS DOS: 0x33 PowerBasic 3D Starfield

https://peertube.v1.root42.de/w/vYb1fkdcfK1cx7RHsLRheF

Let's Code MS DOS: 0x33 PowerBasic 3D Starfield

https://peertube.v1.root42.de/w/vYb1fkdcfK1cx7RHsLRheF

Let's Code MS DOS: 0x32 VGA Split Screen

https://peertube.v1.root42.de/w/8XsH2bF5TnPpGSi7NKsSMy

Let's Code MS DOS: 0x32 VGA Split Screen

https://peertube.v1.root42.de/w/8XsH2bF5TnPpGSi7NKsSMy

Let's Code MS DOS 0x31: ANSI C Data Types

https://peertube.v1.root42.de/w/u4nJNNEBQPepdLU8NcJE2b

Let's Code MS DOS 0x31: ANSI C Data Types

https://peertube.v1.root42.de/w/u4nJNNEBQPepdLU8NcJE2b

Let's Code MS DOS 0x30: VGA 3D Textmode

https://peertube.v1.root42.de/w/wSxPeYyY4Xa28TuwFc4neB

Let's Code MS DOS 0x30: VGA 3D Textmode

https://peertube.v1.root42.de/w/wSxPeYyY4Xa28TuwFc4neB

Quick, without validating through a compiler, or thinking too long: what does this C program do?

#include <stdio.h>
int main(void)
{ printf('A'); return 0; }

#letscode

Quick, without validating through a compiler, or thinking too long: what does this C program do?

#include <stdio.h>
int main(void)
{ printf('A'); return 0; }

#letscode

New video: Let's Code MS DOS 0x38: Huge Pointers in Turbo C

YouTube: https://youtu.be/pf3s-6EVDoo
MakerTube: https://makertube.net/w/hPL2jfBzdmkWeRpfBnqz4a

#letscode #msdos #retrocomputing #turboc

New video: Let's Code MS DOS 0x38: Huge Pointers in Turbo C

YouTube: https://youtu.be/pf3s-6EVDoo
MakerTube: https://makertube.net/w/hPL2jfBzdmkWeRpfBnqz4a

#letscode #msdos #retrocomputing #turboc

Let's Code MS DOS 0x38: Huge Pointers in Turbo C

https://makertube.net/w/hPL2jfBzdmkWeRpfBnqz4a

Let's Code MS DOS 0x38: Huge Pointers in Turbo C

https://makertube.net/w/hPL2jfBzdmkWeRpfBnqz4a

New video for Patrons: Let's Code MS DOS 0x38: Huge Pointers in Turbo C

In MS DOS you can only access up to one Megabyte of memory easily, on an original PC or XT. This memory in turn is segmented, so accessing more than 64K at a time becomes a bit more tricky. This is why languages like Turbo C and Pascal introduced near and far pointers to the programmer. However there are also huge pointers, which we will investigate in this episode.

https://www.patreon.com/root42/posts/lets-code-ms-dos-162954930?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_creator&utm_content=join_link

#letscode #msdos #turboc

New video for Patrons: Let's Code MS DOS 0x38: Huge Pointers in Turbo C

In MS DOS you can only access up to one Megabyte of memory easily, on an original PC or XT. This memory in turn is segmented, so accessing more than 64K at a time becomes a bit more tricky. This is why languages like Turbo C and Pascal introduced near and far pointers to the programmer. However there are also huge pointers, which we will investigate in this episode.

https://www.patreon.com/root42/posts/lets-code-ms-dos-162954930?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_creator&utm_content=join_link

#letscode #msdos #turboc

I still think there is something wrong with my sine variation function, but this looks already much more flamelike.
#letscode #msdos #fractals

I still think there is something wrong with my sine variation function, but this looks already much more flamelike.
#letscode #msdos #fractals

Let's go! I wonder what could go wrong...
#letscode #msdos #fractals

Let's go! I wonder what could go wrong...
#letscode #msdos #fractals

So I just managed to compile flam3, and get it to render out the sample animation, putting it through ImageMagick and having a nice ping-pong GIF in the end. I wonder if I can make my own fractal flame algorithm, for MS DOS obviously? Probably much simpler, as I don't want to replicate three decades worth of code...
#letscode

So I just managed to compile flam3, and get it to render out the sample animation, putting it through ImageMagick and having a nice ping-pong GIF in the end. I wonder if I can make my own fractal flame algorithm, for MS DOS obviously? Probably much simpler, as I don't want to replicate three decades worth of code...
#letscode

New video: Let's Code MS DOS: 0x37 Rainbow Surf Analysis

This year's Revision demoparty had a surprising winner in the 256 byte compo. It was Rainbow Surf by Plex/BionFX and it is only 16 bytes long. That is short, very short. In fact, here is the code: c4 04 48 ab 26 03 45 ae 26 03 05 c1 e8 02 eb f2. Let's dissect it!

YouTube: Let's Code MS DOS: 0x37 Rainbow Surf Analysis
https://youtu.be/FGf2LEAbdSg
Makertube: https://makertube.net/w/hpE75cfisPMrmZFVPj75im

#letscode #msdos #sizecoding #demoscene

New video: Let's Code MS DOS: 0x37 Rainbow Surf Analysis

This year's Revision demoparty had a surprising winner in the 256 byte compo. It was Rainbow Surf by Plex/BionFX and it is only 16 bytes long. That is short, very short. In fact, here is the code: c4 04 48 ab 26 03 45 ae 26 03 05 c1 e8 02 eb f2. Let's dissect it!

YouTube: Let's Code MS DOS: 0x37 Rainbow Surf Analysis
https://youtu.be/FGf2LEAbdSg
Makertube: https://makertube.net/w/hpE75cfisPMrmZFVPj75im

#letscode #msdos #sizecoding #demoscene

Let's Code MS DOS: 0x37 Rainbow Surf Analysis

https://makertube.net/w/hpE75cfisPMrmZFVPj75im

Let's Code MS DOS: 0x37 Rainbow Surf Analysis

https://makertube.net/w/hpE75cfisPMrmZFVPj75im

New video for Patrons: Let's Code MS DOS 0x37: Rainbow Surf Analysis

This year's Revision demoparty had a surprising winner in the 256 byte compo. It was Rainbow Surf by Plex/BionFX and it is only 16 bytes long. That is short, very short. In fact, here is the code: c4 04 48 ab 26 03 45 ae 26 03 05 c1 e8 02 eb f2. Let's dissect it!

https://www.patreon.com/posts/lets-code-ms-dos-155017780?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_creator&utm_content=join_link

#retrocomputing #demoscene #sizecoding #msdos #letscode

New video for Patrons: Let's Code MS DOS 0x37: Rainbow Surf Analysis

This year's Revision demoparty had a surprising winner in the 256 byte compo. It was Rainbow Surf by Plex/BionFX and it is only 16 bytes long. That is short, very short. In fact, here is the code: c4 04 48 ab 26 03 45 ae 26 03 05 c1 e8 02 eb f2. Let's dissect it!

https://www.patreon.com/posts/lets-code-ms-dos-155017780?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_creator&utm_content=join_link

#retrocomputing #demoscene #sizecoding #msdos #letscode

That time when I sizecoded the Game Life, including some sort of MIDI support:

https://youtu.be/noNhtyEKeb0

#letscode #msdos #demoscene #gameoflife

That time when I sizecoded the Game Life, including some sort of MIDI support:

https://youtu.be/noNhtyEKeb0

#letscode #msdos #demoscene #gameoflife

New video: Let's Code MS DOS 0x36: Sprites & Occlusion

In the last video we learned how to make 2D sprites with transparency and scaling. This time around we also make our Guybrush automatically scale with the background, limit his ability to move into nonsensical parts of the scene, and most important: Walk in front and behind objects.

https://youtu.be/2mf4bPU8OrU
#letscode #msdos #retrocomputing

New video: Let's Code MS DOS 0x36: Sprites & Occlusion

In the last video we learned how to make 2D sprites with transparency and scaling. This time around we also make our Guybrush automatically scale with the background, limit his ability to move into nonsensical parts of the scene, and most important: Walk in front and behind objects.

https://youtu.be/2mf4bPU8OrU
#letscode #msdos #retrocomputing

Let's Code MS DOS 0x36: Sprites and Occlusion

https://makertube.net/w/j3JTbLpg8VZEwmdHbyqEF1

Let's Code MS DOS 0x36: Sprites and Occlusion

https://makertube.net/w/j3JTbLpg8VZEwmdHbyqEF1

New video for Patrons: Let's Code MS DOS 0x36: Sprites & Occlusion

https://www.patreon.com/posts/lets-code-ms-dos-151270119?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_creator&utm_content=join_link

#letscode #msdos #retrocomputing

New video for Patrons: Let's Code MS DOS 0x36: Sprites & Occlusion

https://www.patreon.com/posts/lets-code-ms-dos-151270119?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_creator&utm_content=join_link

#letscode #msdos #retrocomputing

New video: Let's Code MS DOS 0x35: Sprites & Scaling

Adventure games like Monkey Island utilized sprites that could be moved and scaled arbitrarily on the screen. How does this work on a machine that doesn't have support hardware sprites? We will work our way from simple sprites with no transparency, to ones that are clipped, have transparency and can be scaled down arbitrarily.

https://youtu.be/O5Ke0vaCgb0

#letscode #msdos #retrocomputing

New video: Let's Code MS DOS 0x35: Sprites & Scaling

Adventure games like Monkey Island utilized sprites that could be moved and scaled arbitrarily on the screen. How does this work on a machine that doesn't have support hardware sprites? We will work our way from simple sprites with no transparency, to ones that are clipped, have transparency and can be scaled down arbitrarily.

https://youtu.be/O5Ke0vaCgb0

#letscode #msdos #retrocomputing

Let's Code MS DOS 0x35: Sprites & Scaling

https://makertube.net/w/3SodheHzbtwuBiJPPMEqb1

Let's Code MS DOS 0x35: Sprites & Scaling

https://makertube.net/w/3SodheHzbtwuBiJPPMEqb1

New video for Patrons:
Let's Code MS DOS 0x35: Sprites & Scaling

https://www.patreon.com/posts/lets-code-ms-dos-149873824?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_creator&utm_content=join_link
#retrocomputing #letscode

New video for Patrons:
Let's Code MS DOS 0x35: Sprites & Scaling

https://www.patreon.com/posts/lets-code-ms-dos-149873824?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=postshare_creator&utm_content=join_link
#retrocomputing #letscode

Sneak preview or rather outtakes of the next #letscode video…

Sneak preview or rather outtakes of the next #letscode video…

Turbo C Debugger can identify when a variable points into video RAM. Nice.
#turboc #msdos #letscode

Turbo C Debugger can identify when a variable points into video RAM. Nice.
#turboc #msdos #letscode

The original VGA card used 8-bit indexed color modes to generate 256 color graphics. This is completely not useful for cross fading images. If you are interested in how you can still achieve this, check out my latest #letscode #msdos video:

Let's Code MS DOS 0x34: VGA Blending
https://youtu.be/6afRxeGV9yU

#letscode #msdos #demoscene #retrocomputing

The original VGA card used 8-bit indexed color modes to generate 256 color graphics. This is completely not useful for cross fading images. If you are interested in how you can still achieve this, check out my latest #letscode #msdos video:

Let's Code MS DOS 0x34: VGA Blending
https://youtu.be/6afRxeGV9yU

#letscode #msdos #demoscene #retrocomputing

Let's Code MS DOS 0x34: VGA Blending

https://makertube.net/w/mp3pTJwUSUw7rHHyDUXLzo

Let's Code MS DOS 0x34: VGA Blending

https://makertube.net/w/mp3pTJwUSUw7rHHyDUXLzo