InkboxSoftware/excelCPU
ExcelCPU
excelCPU es un emulador de computadora basado en hoja de cálculo que simula una unidad central de procesamiento de 16 bits. Funciona como un modelo de CPU educativo donde el estado del sistema, los registros y la memoria de acceso aleatorio se gestionan dentro de una cuadrícula de celdas de hoja de cálculo.
El proyecto incluye un compilador de ensamblador que convierte código fuente de ensamblador personalizado en un formato compatible con celdas de hoja de cálculo para almacenamiento de memoria de solo lectura. Permite tanto la ejecución automática de programas como la operación manual para sobrescribir instrucciones específicas.
La simulación cubre conceptos básicos de arquitectura de hardware, incluyendo prototipado de puertas lógicas, búsqueda de instrucciones y gestión de memoria. Este entorno permite la visualización de interacciones entre registros y memoria del sistema a través de lógica impulsada por fórmulas.
Features
- Computer Architecture - Provides a visual environment for learning hardware components and their interactions within a CPU.
- Assemblers - Provides a tool that translates custom assembly source code into a spreadsheet-compatible ROM format.
- Cell-Based State Storage - Uses cell values as the primary memory and register storage to maintain the machine state.
- CPU Architectural Simulators - Simulates a 16-bit CPU architecture for the purpose of architectural exploration and functional verification.
- Spreadsheet-Based CPU Simulators - Implements a functional 16-bit processor within a spreadsheet to demonstrate computer hardware logic.
- CPU Architectures - Implements a simplified hardware architecture to demonstrate the fundamentals of machine cycles.
- Spreadsheet-Based Emulators - Emulates a complete computer architecture where system state and RAM are managed within a grid of cells.
- Custom Assembly Programming - Supports writing low-level assembly code to be executed by the simulated processor.
- Logic Gate Simulations - Implements CPU operations and arithmetic logic units using nested spreadsheet formulas.
- Formula-Based - Builds a virtual machine environment using spreadsheet formulas to test processor instructions.
- Spreadsheet Coordinate Mapping - Simulates RAM by mapping memory address indices to specific spreadsheet cell coordinates.
- Instruction-Level Execution Controls - Provides a toggle between automatic execution and manual operation to override specific instructions.
- Emulator Execution Controls - Allows users to pause automatic recalculation to manually step through individual CPU instructions.
- Instruction Fetch Units - Implements the mechanism for retrieving the next operational code based on the program counter.
