Getting wrong result on FMUL-S with DYN-RDN mode

Created by: zeeshanrafique23

I am multiplying two numbers: rs1 = 0x00000000 and rs2 = 0x3a2b48ef. I am getting the wrong result, the sign bit is high.

I am suspecting the error comes from this statement. https://github.com/pulp-platform/fpnew/blob/0bfbeede0e01b2e44e41bb14c70a80efeffa1bbd/src/fpnew_rounding.sv#L68 @stmach @lucabertaccini