Posts

Amiga Machine Code Letter VII - Colorcycling

We have reached Letter VII of the Amiga Machine Code course. As always, make sure to read the letter, since I won’t go through all the details. The theme of this post, is to use color cycling, to make the text scrolling program from the previous post, a little more interesting.

Amiga Machine Code Letter VII - Blitting and Scrolling

We have reached Letter VII of the Amiga Machine Code course. It took a while getting here 😉. In this post, we are going to take another round with the blitter.

Amiga Machine Code Letter VI - Blitter 3

We have reached Letter VI of the Amiga Machine Code course. I will only skip through the details in this post. Make sure to read the letter, to get a grasp of things.

Amiga Machine Code Letter VI - Blitter 2

We have reached Letter VI of the Amiga Machine Code course. I’ll skip through the details in this post. Make sure to read the letter, to get a grasp of things.

Amiga Machine Code Letter VI - Blitter

We have reached Letter VI of the Amiga Machine Code course. I will only skip through the details in this post. Make sure to read the letter, to get a grasp of things.

Amiga Machine Code Letter V - Sprites

We have reached Letter V of the Amiga Machine Code course. The program examples are now so big, that we have to read them from the course disk Disk 1

Amiga Machine Code Letter V

We have reached Letter V of the Amiga Machine Code course. This letter is all about sprites and a few extra machine code instructions, and the instroduction of the stack. Let’s start with the extra machine code instructions and then look at some code.

Amiga Machine Code Letter IV - More Code

We have reached Letter IV of the Amiga Machine Code course. This post is about the code examples found in Letter IV. I won’t go into details, as you can look them up in the letter.

Amiga Machine Code Letter IV - DMA Revisited

We have reached Letter IV of the Amiga Machine Code course. The CPU of the Amiga was the Motorola 68K. It’s speed grade at the factory was 8 MHz, yet when used in the Amiga, it was clocked to the odd 7.

Amiga Machine Code Letter IV

We have reached Letter IV of the Amiga Machine Code course. This letter was the toughest yet, and I think that it’s due to my obsession with details. The authors writes repeatedly that we have to gloss over the details, as an explaination will be given in later letters.