How are floating point single and double values stored in big endian mode

[bjdooks-ct]

With the MBE/SBE/UBE bits added, these change the integer endian. Do these also do the same to the floating point numbers or vector? I couldn't see anything in the documents. Currently gcc assumes big endian and qemu is still in little.

[radimkrcmar]

The spec doesn't seem to make a distinction for integers. Should be big endian for all data.

[aswaterman]

@radimkrcmar’s answer is correct; the definition in the spec is deliberately generic and so applies to FP memory accesses, too.

[bjdooks-ct]

Thank you @aswaterman and @radimkrcmar. For some reason I had gotten into my memory that it was integer only.

I'll update my QEMu patch set and hopefully I can get my big endian project mostly sorted this week. Info is at https://gitlab.com/CodethinkLabs/riscv_bigendian