DEC Opcodes
Educación
Gratis · Compras dentro de la app · Diseñada para iPad. No verificada para macOS.
Dec Opcodes – DEC Architecture Reference
Before the microprocessor, there was DEC. The minicomputers built by Digital Equipment Corporation didn't just advance computing - they defined it. Unix was born on a PDP-7. Spacewar! ran on a PDP-1. The field of Artificial Intelligence was born on the PDP-10. The VAX powered universities and research labs worldwide for a generation.
DecOpcodes puts the complete instruction sets of these legendary machines in your pocket.
Five iconic architectures covered: PDP-1 (1960) · PDP-8 (1965) · PDP-10 (1966) · PDP-11 (1970) · VAX (1977)
For every instruction:
• Full description of what the instruction does
• Octal and hex encoding
• Flags affected
• Addressing modes, word count, and cycle counts
• Assembly code examples and implementation notes
But there is a lot more than just dry opcodes:
• Complete system specifications and register architecture
• Historical context and cultural impact
• Archival photographs - front panels, system cabinets, and more
• Notable installations and the systems they powered
• Architecture variants and successors
• Interactive lessons on assembly language and console operations (ideal if you have an emulator)
Built for exploration:
• Search across all systems instantly
• A simple assembler for PDP-1, -8 and -11 code
• Filter by instruction category
• Sort alphabetically or by category
• Favorite instructions for quick reference
Beautifully designed:
• System-specific accent colours
• Five themes including Terminal green and Blinkenlights orange
• Full Dark Mode support
From the 18-bit simplicity of the PDP-1 to the 32-bit sophistication of the VAX, DecOpcodes is a fascinating and interactive journey through the machines that made modern computing possible.
Calificaciones y reseñas
- Esta app no ha recibido suficientes calificaciones ni reseñas para mostrar un resumen.
Hello DEC fans! In this update, I added a Glossary, so you can stop dropping DEC-terms into casual conversation. I also updated the PiDP-1 and PiDP-8 sections with some more useful little facts and tips.
El desarrollador (John Kennedy) indicó que las prácticas de privacidad de la app pueden incluir el manejo de datos que se describe a continuación. Para obtener más detalles, consulta la política de privacidad del desarrollador .
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El desarrollador no recopila ningún dato en esta app.
Accesibilidad
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Ficha técnica
- Vendedor
- John Kennedy
- Tamaño
- 44.5 MB
- Categoría
- Educación
- Compatibilidad
Requiere iOS 18.0 o posterior.
- iPhone
Requiere iOS 18.0 o posterior. - iPad
Requiere iPadOS 18.0 o posterior. - Mac
Requiere macOS 15.0 o posterior y una Mac con el chip M1 de Apple o posterior. - Apple Vision
Requiere visionOS 2.0 o posterior.
- iPhone
- Idiomas
- Inglés
- Edad
4+
- 4+
- Compras dentro de la app
Sí
- Buy Me a Coffee USD 0.99
- Copyright
- © 2026 John Kennedy