1701 changed Spike's ISA parsing to avoid setting a default VLEN/... if no V extension was found. This broke the interactive vreg N command (which assumed VLEN and ELEN would be set by default and would be non-zero) by throwing a 0/0 FP exception. This wraps existing logic in an if and prints a nice message saying no V extensions supported.
1701 changed Spike's ISA parsing to avoid setting a default VLEN/... if no V extension was found. This broke the interactive
vreg Ncommand (which assumed VLEN and ELEN would be set by default and would be non-zero) by throwing a0/0FP exception. This wraps existing logic in anifand prints a nice message saying no V extensions supported.