Table of contents

• Caravel FPU
  • Floating Point Unit
    • FPU Architecture
    • FPU Exceptions
  • Integration of FPU as Memory Mapped Peripheral
    • Wishbone Interface
    • Logic Analyzer
    • GPIO
  • CSRs for FPU
  • Instruction Flow

Caravel FPU

Floating Point Unit

FPU Architecture

The default rounding mode for all the operations is RNE as highlighted by RISC-V and IEEE-754 spec.

FPU Exceptions

Integration of FPU as Memory Mapped Peripheral

Wishbone Interface

Logic Analyzer

GPIO

Result of FPU calculation also appers at the 32 GPIO pins.

CSRs for FPU

Instruction Flow