Seeking Advice on Murax SoC RAM Access and Floating-Point Support

[Usutatsu]

I am currently working on implementing the Murax SoC on the Arty A7 35T board and would like to verify the operation of Vexriscv. After reading the documentation in doc/nativeJtag, I successfully wrote the design to the Arty A7 and confirmed that LEDs 4 through 7 are blinking as expected.
Next, I would like to verify the following functionalities. I would greatly appreciate any advice:

Data access to Murax's on-chip RAM
I plan to write specific values (e.g., 0xAAAA, 0x5555) to the RAM and read from the same address to confirm that the written values can be correctly retrieved.
I would like to output the read values via UART.

Floating-point operations
As I understand Murax does not include an FPU, I assume it is necessary to add a plugin to enable floating-point calculations?

I would appreciate guidance on recommended approaches, programs, linker files, and any other related files that should be modified to proceed with this work.

[Dolu1990]

Hi,

As I understand Murax does not include an FPU.

Right. and the CPU is only supported for CPU configuration with the data cache if i remember well.

I assume it is necessary to add a plugin to enable floating-point calculations?

It isn't necessary, as the software can be compiled with software based floating point calculation, it will just be much slower.