The incrementer card can take an input from the address bus and increment it by one placing the result in the increment register. This is primarily used to increment to program counter but also can increment the XY register too.
The incrementer makes up the broader ‘control unit’ within the computer.
Below is a list of the blog articles relating to this card (in reverse date order):
07 Jan 2018 - 1 min read
In my last two posts I covered the construction of the upper and lower incrementer cards. The lower card is a 16-bit half adder and the upper card is a 16-bit register. …
17 Dec 2017 - 2 min read
Incrementer Construction (Part 2 of 2)
In my last post I covered the construction of the lower incrementer card which is effectively a 16-bit half adder. This time I’m going to cover constructing the upper …
10 Dec 2017 - 3 min read
Incrementer Construction (Part 1 of 2)
We’re getting nearer and nearer to a computer that can run though a program in memory rather than just a single instruction … we’ve got memory to hold the …
17 Jul 2017 - 3 min read
In my last post I covered the design of the 16-bit half adder which takes whatever value is currently on the address bus and increments it by one. To make this incremented …
15 Jul 2017 - 2 min read
Incrementer Design: 16-bit Half Adder
In the last post I introduced the design for the 1-bit Half Adder. This post covers connecting sixteen of these units together to make the 16-bit Half Adder. So, diving …
04 Jun 2017 - 3 min read
Incrementer Design: 1-bit Half Adder
Typical isn’t it?! … you wait 10 months for a post and then two come along at once. Well, all being well, this should be the first of a short flurry of posts as I …
