Synopsys:
iogetb
Each IO space has a bias associated with it, which by default is 0 bits. This bias is applied to the offset given to every read/write operation.
This instruction pushes the bias associated to the given IO space to the stack, as an offset. If the given IO space doesn’t exist then the exception PVM_E_NO_IOS is raised.
Stack: ( INT - INT OFF )
Exceptions: PVM_E_NO_IOS