FASM Notepad

FASM Notepad is a small native Windows text editor written in Flat Assembler with the Win32 API. It is intended as a compact, readable Notepad-style application and as a practical FASM GUI example.

Main features

• Create, open, edit, save, and print plain-text documents.
• Open and save .txt and .md files, with an additional all-files filter.
• Drag files from Windows Explorer into the editor.
• Find, find next, replace, and replace all.
• Undo, cut, copy, paste, delete, and select all.
• Configurable word wrapping and a standard Windows font selection dialog.
• Change editor text size with Ctrl + mouse wheel.
• Status line with the current line, total character count, and an approximate token count.
• Selectable encodings including UTF-8, UTF-16, Windows code pages, ISO-8859-1, and DOS/OEM code pages.
• Light, Dark, Aurora, and Matrix interface themes.
• Resizable and maximizable native Windows window.

Markdown files are edited as plain text; the application does not render Markdown formatting.

Interface languages

English is the default interface language. The application also includes:

• German
• French
• Portuguese
• Danish
• Ukrainian
• Russian
• Simplified Chinese
• Korean
• Arabic
• Turkish

The language can be changed at runtime from the Language menu.

Building

The project targets 32-bit Windows and also runs on 64-bit Windows through WoW64.

Normal build

Run:

build.cmd

The script looks for FASM in the project, through FASM_HOME, and in PATH. If FASM is not available, it can download the official Windows compiler package into tools\fasm without changing the system-wide PowerShell execution policy.

The resulting executable is written to:

bin\FasmNotepad.exe

Build and run

build_and_run.cmd

Clean generated output

clean.cmd

The build requires the standard FASM Windows include files, especially win32wx.inc.

Project structure

src\FasmNotepad.asm       Main application source
src\localization.inc      UTF-16 interface strings
src\assets\               Application icon resources
changelog\                Release history and technical notes
build.cmd                 Compiler discovery and build script

License and source

FASM Notepad is distributed under the MIT License. See LICENSE.txt.

Source repository: https://github.com/zeittresor/fasm_notepad