Update README with full F Extension Support

README.md

@@ -24,8 +24,7 @@ a focus on efficiency and readability.
 
 Features:
 * Fast interpreter for executing the RV32 ISA
-* Comprehensive support for RV32I and M, A, C extensions
-* Partial support for the F extension
+* Comprehensive support for RV32I and M, A, C, F extensions
 * Memory-efficient design
 * Built-in ELF loader
 * Implementation of commonly used newlib system calls
@@ -85,6 +84,7 @@ After the image is built, you can create a docker container by executing `docker
 * `ENABLE_Zifencei`: Instruction-Fetch Fence
 * `ENABLE_GDBSTUB` : GDB remote debugging support
 * `ENABLE_SDL` : Experimental Display and Event System Calls
+* `ENABLE_SOFTFLOAT` : SoftFloat implementation for F extension
 
 e.g., run `make ENABLE_EXT_F=0` for the build without floating-point support.
 
@@ -143,7 +143,6 @@ Current progress of this emulator in riscv-arch-test (RV32):
     - `C`: Standard Extension for Compressed Instruction
     - `Zifencei`: Instruction-Fetch Fence
     - `privilege`: RISCV Privileged Specification
-* Unsupported tests (runnable but incomplete)
     - `F` Standard Extension for Single-Precision Floating-Point
 
 Detail in riscv-arch-test: