The NEORV32 RISC-V Processor

• [PMP] add support for NA4 and NAPOT modes by @stnolting in https://github.com/stnolting/neorv32/pull/566
• [rtl] cleanups and optimizations by @stnolting in https://github.com/stnolting/neorv32/pull/569
• update XIRQ controller by @stnolting in https://github.com/stnolting/neorv32/pull/570
• [rtl] coding style edits and cleanups by @stnolting in https://github.com/stnolting/neorv32/pull/571
• Remove warnings by @emb4fun in https://github.com/stnolting/neorv32/pull/561
• Updated path for FreeRTOS example - FreeRTOS-Plus-TCP by @matty0005 in https://github.com/stnolting/neorv32/pull/574
• 🐛 FPU bug fix and rtl optimizations by @stnolting in https://github.com/stnolting/neorv32/pull/578
• [UART] add FIFO configuration to DATA register by @stnolting in https://github.com/stnolting/neorv32/pull/581
• 🐛⚠️ CPU bug-fixes, major cleanups and optimizations by @stnolting in https://github.com/stnolting/neorv32/pull/586
• Freertos xirq example by @matty0005 in https://github.com/stnolting/neorv32/pull/585
• [rtl] minor optimizations/cleanups of processor bus system by @stnolting in https://github.com/stnolting/neorv32/pull/591
• Added a test case to show the 1.0 + -1.0 instruction time-out under f… by @mikaelsky in https://github.com/stnolting/neorv32/pull/592

• @matty0005 made their first contribution in https://github.com/stnolting/neorv32/pull/574

Full Changelog: https://github.com/stnolting/neorv32/compare/v1.8.3...v1.8.4