# Old Command Processor Documentation

This file contains documentation for the legacy CMNDPROC.BAS command processor implementation.

## Overview

CMNDPROC.BAS was the original command processor module used for parsing and executing commands in BASIC. It provided command line interpretation and execution capabilities.

## Key Functions

- Command parsing and tokenization
- Command execution routing
- Parameter handling
- Error checking and validation
- Built-in command implementations

## Command Format

Commands followed this general format:

COMMAND [PARAM1] [PARAM2] ... [PARAMn]


Where:
- COMMAND: The command name (required)
- PARAMx: Optional parameters specific to each command

## Built-in Commands

The following commands were supported:

- HELP - Display help information
- DIR - List directory contents  
- CD - Change current directory
- TYPE - Display file contents
- COPY - Copy files
- DEL - Delete files
- REN - Rename files
- CLS - Clear screen
- EXIT - Exit to system

## Error Handling

Error codes were returned as follows:

- 0: Success
- 1: Invalid command
- 2: Invalid parameters
- 3: File not found
- 4: Path not found
- 5: Access denied

## Notes

This was replaced by newer command processor implementations but is maintained for legacy documentation purposes.
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