cpu

Provide PlayStation 1 CPU register details and opcode encoding specifications.

3|Updated Feb 25, 2026
One-click install
npx skills add https://github.com/sadnescity/psx-spx-claude-plugin --skill cpu
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: cpu
Source: https://github.com/sadnescity/psx-spx-claude-plugin/tree/main/skills/cpu
Command: npx skills add https://github.com/sadnescity/psx-spx-claude-plugin --skill cpu

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill provides comprehensive information about the PlayStation 1 CPU (MIPS R3000A), its registers, opcodes, and related system control functionalities, aiding developers in understanding and working with the PlayStation 1 architecture.

Core Features & Use Cases

  • Comprehensive CPU Specification: Detailed coverage of the CPU's registers, opcodes, and system control coprocessor (COP0) functionalities.
  • Instruction Encoding Analysis: In-depth look into the CPU's instruction encoding, including primary and secondary opcode fields, and opcode/parameter encoding.
  • Use Case: Developers can utilize this Skill to write or analyze MIPS assembly code for the PlayStation 1, understand instruction encoding, handle exceptions, and debug issues related to the CPU.

Quick Start

Use the cpu skill to access detailed information about the PlayStation 1 CPU registers and opcodes.

Frequently Asked Questions about cpu

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
Where can I find detailed specifications for the PlayStation 1 MIPS R3000A CPU registers and opcodes?

The PlayStation 1 MIPS R3000A CPU specifications provide detailed coverage of CPU registers, opcodes, and system control coprocessor (COP0) functionalities for developers working on PlayStation 1 hardware projects.

How do I analyze MIPS assembly instruction encoding for the PlayStation 1?

To analyze MIPS assembly instruction encoding for the PlayStation 1, you can reference detailed breakdowns of primary and secondary opcode fields, alongside opcode and parameter encoding formats specific to the MIPS R3000A architecture.

Do I need prior knowledge of MIPS architecture to use PlayStation 1 CPU system control functionalities?

Yes, understanding PlayStation 1 CPU system control functionalities requires existing knowledge of MIPS architecture and PlayStation 1 hardware to effectively handle COP0 operations and exception management.

How does the COP0 system control coprocessor work in the PlayStation 1 CPU?

The COP0 system control coprocessor in the PlayStation 1 CPU manages system control functionalities, enabling developers to handle exceptions and debug hardware-level issues by interacting directly with specific CPU control registers.

What is the best way to debug PlayStation 1 CPU exceptions during assembly development?

Debugging PlayStation 1 CPU exceptions during assembly development involves utilizing detailed MIPS R3000A opcode references and COP0 system control specifications to trace instruction execution and identify exception triggers.

Are there limitations to the PlayStation 1 MIPS R3000A instruction set when handling system control operations?

The MIPS R3000A instruction set for the PlayStation 1 has specific system control limitations defined by its COP0 functionalities, requiring developers to strictly adhere to documented opcode encoding and register details for accurate execution.