Release: fsm-toolkit v0.9.5

fsm-toolkit is a Go toolkit for designing and analysing finite state machines. It provides a CLI tool (fsm) and a full TUI editor (fsmedit) supporting DFA, NFA, Mealy, and Moore machines — with multi-machine bundles, cross-machine linking, and a component system backed by reusable class libraries.

Repo:

https://github.com/ha1tch/fsm-toolkit#readme

This is the biggest release since the project's inception bringing a component-oriented workflow to FSM design. You can now drag 74xx-series digital logic parts from a library drawer, assign typed properties to states, link machines into bundles, and manage it all from the TUI. Builds and releases for 12 platforms are now fully automated.

New: Editor Manual

https://github.com/ha1tch/fsm-toolkit/blob/main/cmd/fsmedit/MANUAL.md

New: Workflow Guide

https://github.com/ha1tch/fsm-toolkit/blob/main/WORKFLOWS.md

Highlights

% Multi-document bundles with import and cross-machine navigation
% Class and property system with 7 typed fields
% Component drawer with drag-and-drop instantiation
% 74xx-series class libraries (49 components across 7 families)
% Machine manager with rename/delete and link propagation
% Settings screen with vocabulary customisation and library loading
% Improved TUI layout engine with cell-grid metrics
% CI/CD pipeline targeting 12 platforms (Linux, macOS, Windows, FreeBSD, OpenBSD, NetBSD)
% Separate CLI and editor manuals
% 261+ tests passing

Changelog:

https://github.com/ha1tch/fsm-toolkit/blob/main/CHANGELOG.md

#golang #foss #programming #compsci #fsm #digitallogic #tui #statemachines #electronics

Understanding Two's Complement

In the world of digital electronics and computing, dealing with negative binary numbers is a crucial task. This is where the concept of two's complement comes into play. Twos complement calculator is a mathematical operation used to represent both positive and negative binary numbers within the same number of bits.

So how does it work? Let's take an 8-bit binary number as an example. To obtain the two's complement of a positive number, you simply represent it as is. For a negative number, you follow these steps:

1. Take the absolute value of the number and represent it in binary.
2. Flip all the bits (change 0 to 1 and 1 to 0).
3. Add 1 to the flipped value.

The resulting binary value is the two's complement representation of the negative number.

Two's complement is widely used in modern computers and digital circuits because it simplifies arithmetic operations involving both positive and negative numbers. It eliminates the need for separate logic to handle positive and negative values, making computations more efficient.

While the concept may seem abstract at first, understanding two's complement is crucial for anyone delving into the intricacies of computer architecture, digital electronics, or low-level programming.

Reference:https://twoscomplementcalculator.com/

#TwosComplement #BinaryArithmetic #DigitalLogic #ComputerArchitecture

@jangray can I trust Vivado to make a tight one-cell feedback loop for something like

reg q;
always @(*) if (a == b) q = a;

?

(this is Muller’s C-element AKA Karl Fant’s NCL TH22 threshold gate)

#FPGA #ASync #NCL #DigitalLogic

Been playing a lot of #minecraft over the last couple of weeks... Here is a #thread showing what is being built:

#8bit #redstone #sevensegment #display #norlogic #nor #and #or #not #rca #ripplecarryadder #fulladder #combinationallogic #digitallogic #truthtable #karnaughmaps #kmaps #sequentiallogic #quinemccluskey #tree #log #linear #fpga #fetch #execute #decode #load #store #pipeline #computerengineering #earlelatch #srlatch #dflipflop #dlatch #mux #bch #hexadecimal #register