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2026-05-19Pass linterChat3-37/+44
- simple_alu.sv: rename ports with suffixes (clk_i, rst_ni, a_i, b_i, sel_i, y_o, overflow_o); add default case to sel case statement; add y_next and overflow_next combinational signals; simplify always_ff to only register y_next and overflow_next - simple_alu_fv.sv: rename ports to match RTL (clk_i, rst_ni, a_i, b_i, sel_i, y_i, overflow_i); remove trailing spaces - simple_alu_top_fv.sv: rename ports; replace .* with explicit connections to match updated port names - simple_alu_bind.sv: add missing posix newline at EOF
2026-05-14Add simple_alu RTL and formal verificationChat5-0/+140
- simple_alu.sv: 32-bit ALU with add/sub, 33-bit extended overflow detection, and active-low synchronous reset - simple_alu_bind.sv: attaches checker to simple_alu without modifying RTL - simple_alu_top_fv.sv: replace bind (unsupported in open-source Yosys) with explicit wrapper that instantiates DUT and checker side-by-side - simple_alu_fv.sv: bind-based checker module observing DUT signals - simple_alu.sby: SymbiYosys config running BMC and cover tasks - README.md: verification plan tracking implemented and planned properties - .gitignore: exclude SymbiYosys output directories