A programmer can configure VCFG with the any mix of these alternative configurations:
-* v0-v31 are all INT 16, and MVL is same as point #4 above
+* v0-v31 are all INT 16, and MVL is same as for Default MVL above
* v0-v31 are all INT 8 and MVL is 4 on RV32I and 8 on RV64I
* A lesser number of registers (<v31) could be supported, eg. default is only v0-v29 defined. (Accessing registers beyond maximum defined by VDCFG is to be legal, with a type of INT32 assumed. However, this is not to affect the MVL, which is to be calculated based on INT8/INT16 vectors only)
* With the above alternative configs, there can be any split between signed & unsigned.