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Single Precision Floating Point Unit from MERL
This is the first ever Single Precision Floating Point Unit of IEEE-754 standard designed by undergraduate students of DHA Suffa University Pakistan. It support all the basic floating point instruction mention in RISC-V specs.
Directory Structure
+-- verlog # User verilog Directory
+-- rtl # RTL
+-- dv # Design Verification
+-- gl # Gate Level Netlis
The Floating Point Unit Source Code is avaialable here
+-- verlog # User verilog Directory
+-- rtl # RTL
| +-- user_project_wrapper.v # User Project Wrapper source file
| +-- user_proj_example.v # User Project Example source file
| +-- FPU # Floating Point Unit folder
The Design Verification Testbench is available here
+-- verlog # User verilog Directory
+-- dv # Design Verification
+-- FPU_Single # Design Test Directory
+-- hex # Hex files folder
+-- asm # Assmebly files folder
The synthesized netlist is present here: +-- verlog # User verilog Directory
+-- gl # Gate Level Netlis
+-- user_project_wrapper.v # User Project Wrapper Netlist
+-- user_proj_example.v # User Project Example Netlist
The hardened macros are placed here:
+-- def # def Directory
+-- user_project_wrapper.def # User Project Wrapper def file
+-- lef # lef Directory
+-- user_project_wrapper.lef # User Project Wrapper lef file
+-- user_proj_example.lef # User Project Example lef file
+-- gds # gds Directory
+-- user_project_wrapper.gdz.gz # User Project Wrapper gds
+-- user_proj_example.gdz.gz # User Project Example gds
Testing of Design
Go to verilog/dv/FPU_Single/ directory
Set the GCC_PATH environment variable.
Set the PDK_PATH environment variable.
Copy the given program hex file into uart.hex.
run the make commad for RTL simulation
run the SIM=GL make command for netlist simulation
Note: Dont forget to add 00000010 and 00000FFF instruction in the end of the uart.hex to stop the uart transmission if you are using your own codes.