updates README

README.md

@@ -1,19 +1,46 @@
-# Running the RTOS
+# ThreadX Port for the TGFS cores and accompanying Virtual prototypes
 
-This repositiory contains prototypical RISC-V implementation of ThreadX designed to run on the RISC-V VP by MINRES (tested on commit [d96cd4a](https://github.com/Minres/RISCV-VP/tree/d96cd4a01de1f4bcc77db3eceb57f5c144395847)).
+This repositiory contains a RISC-V implementation of ThreadX designed to run on the TGFS cores or the RISC-V VP by MINRES (available on [Github](https://github.com/Minres/RISCV-VP/tree/d96cd4a01de1f4bcc77db3eceb57f5c144395847)).
+
+**Note**: SMP support additionally requires a VP variant that allows the number of cores to be configured.
 
 ## Building the RTOS
 
-Four presets are provided, targetting RV32 and RV64 combined with GC or IMAC. The presets use rv32imac and rv64imac.
+A set of presets is provided, targetting 32 and 64-bit systems.
+
+E.g. building for the RV64IMAC configuration:
+
+```bash
+cmake --preset Debug
+cmake --build --preset Debug --parallel
+```
 
 ## Running on the VP
 
 A run command can look like this:
 
 ```bash
-riscv-vp --isa=rv64gc_m -f build/Debug/main.elf
+riscv-vp --isa=rv64imac_m -f build/Debug/thread_demo.elf
 ```
 
-## What is running?
+## Running the Regression Suites
 
-The current implementation is just a demo, taken from the existing threadx qemu implementation.
+The regression suites live in test/. Both suites register their cases with CTest and require the path to the MINRES `riscv-vp` simulator to be provided through `THREADX_TEST_SIMULATOR`.
+
+The SMP regression suite additionally requires a `riscv-vp` variant that supports a configurable number of cores.
+
+Examples:
+
+```bash
+cmake -S test/threadx --preset Debug32 -DTHREADX_TEST_SIMULATOR=/opt/riscv-vp/bin/riscv-vp
+cmake --build --preset Debug32 --parallel 
+ctest --test-dir ../../build/Debug32/test/threadx --output-on-failure --parallel 4
+```
+
+## Demo Applications
+
+The repository currently provides three demo applications:
+
+- `thread_demo`: a basic single-kernel ThreadX demo based on the standard ThreadX sample application
+- `smp_demo`: the same basic demo application for running on a ThreadX SMP kernel
+- `tcp_demo`: a NetX Duo demo that exercises the TCP/IP stack on top of ThreadX