From 7baed021cdf61891bc9454050edf7f2a0f75b45b Mon Sep 17 00:00:00 2001 From: Alejandro Soto Date: Fri, 27 Oct 2023 05:55:35 -0600 Subject: rtl/gfx: implement fp16 on verilator --- tb/verilator.hpp | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 tb/verilator.hpp (limited to 'tb') diff --git a/tb/verilator.hpp b/tb/verilator.hpp new file mode 100644 index 0000000..ff2e9c0 --- /dev/null +++ b/tb/verilator.hpp @@ -0,0 +1,35 @@ +#ifndef TALLER_VERILATOR_HPP +#define TALLER_VERILATOR_HPP + +#include + +namespace taller +{ + union fp16_bits + { + std::uint16_t u16; + _Float16 fp16; + }; + + static inline std::uint16_t fp_add(std::uint16_t a, std::uint16_t b) noexcept + { + fp16_bits a_bits, b_bits, q_bits; + a_bits.u16 = a; + b_bits.u16 = b; + + q_bits.fp16 = a_bits.fp16 + b_bits.fp16; + return q_bits.u16; + } + + static inline std::uint16_t fp_mul(std::uint16_t a, std::uint16_t b) noexcept + { + fp16_bits a_bits, b_bits, q_bits; + a_bits.u16 = a; + b_bits.u16 = b; + + q_bits.fp16 = a_bits.fp16 * b_bits.fp16; + return q_bits.u16; + } +} + +#endif -- cgit v1.2.3