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Add Register File: 8 General-Purpose Registers

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Add ALU to CPU Emulator Supporting Arithmetic and Logic Ops Implement Memory-Mapped I/O: Map Address to Print Character

Language

Compiler

2.0s Limit 256MB

Implementation

Implement register file with 8 general-purpose registers.

Requirements:

Create register file with 8 registers (R0-R7)
Implement dual-read ports (read two registers at once)
Implement single-write port (write one register)
Support register addressing (0-7)
Test reading and writing
Verify concurrent reads work correctly
Show register file state

Why This Matters

Dual-read, single-write register files like the one you're building are a real hardware bottleneck architects fight over: RISC-V hardwires x0 to zero exactly as you do here, while superscalar x86 and ARM cores add extra ports and register renaming purely to avoid stalling on this structure. Choosing 8 versus 16 versus 32 architectural registers is a genuine ISA design tradeoff between instruction encoding density and compiler register pressure.

Hints

0 / 3 revealed

Validation Suite

main.c

Workspace 1.0