ifn1 - number of the table hosting the first vector to be processed
ifn2 - number of the table hosting the second vector to be processed
ielements - number of elements of the two vectors
vsubv subtracts two vectorial control signals, that is, each element of ifn2 is subrtacted from the corresponding element of ifn1. Each vectorial signal is hosted by a table (ifn1 and ifn2). The number of elements contained in both vectors must be the same.
The result is a new vectorial control signal that overrides old values of ifn1. If you want to keep the old ifn1 vector, use vcopy opcode to copy it in another table.
This opcode works at k-rate.
All these operators (vaddv,vsubv,vmultv,vdivv,vpowv,vexpv, vcopy and vmap) are designed to be used together with other opcodes that operate with vectorial signals such as bmscan, vcella, adsynt, adsynt2 etc.