---
title: "DEC Opcodes — App Overview"
url: https://marlvel.ai/apps/dec-opcodes
category: Education
developer: John Kennedy
platforms: ios
rating: 5.0 (2 ratings)
pricing: free
report_level: overview
generated: 2026-05-04
last_verified: "2026-05-04T11:55:52.184Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** This app functions as a specialized, high-fidelity technical encyclopedia for the legacy hardware architectures of Digital Equipment Corporation.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Education |
| Rating | 5.0 ★ (2) |
| Pricing | free |
| Platforms | iOS |
| Latest Version (iOS) | 1.7 |
| Developer | John Kennedy |

<!-- SECTION: Summary -->
## What is DEC Opcodes?

DEC Opcodes is a technical reference tool providing comprehensive instruction sets and architectural specifications for five iconic Digital Equipment Corporation minicomputers. It serves as a digital archive for computer history enthusiasts and engineers, offering detailed technical data alongside historical context and archival imagery.

<!-- SECTION: Key Features -->
## Key Features

- **Instruction Set Reference**: Provides detailed opcode data including octal/hex encoding, flag impacts, addressing modes, and cycle counts for PDP-1, PDP-8, PDP-10, PDP-11, and VAX architectures.
- **System Specifications**: Includes comprehensive documentation on register architectures and system-level hardware configurations for each supported machine.
- **Historical Archive**: Features historical context, cultural impact summaries, and archival photographs of original system front panels and hardware.
- **Implementation Examples**: Offers assembly code examples and technical implementation notes to assist in understanding the practical application of each instruction.

<!-- SECTION: Target Audience -->
## Who is it for?

Computer history enthusiasts, retro-computing hobbyists, and systems engineers interested in classic DEC architectures.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/dec-opcodes/id6760246055?uo=4)
- [Full Intelligence Report](https://marlvel.ai/apps/dec-opcodes)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/dec-opcodes).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*