22.1.27.7 Instruction peekdiu

Synopsys:

peekdiu BITS

Given an IOS descriptor and a bit-offset, peek an unsigned integer value of width BITS bits. Use the default endianness.

If there is a problem performing the operation, this function pushes an exception in the stack. Otherwise, it pushes the peeked value and PVM_NULL.

Stack: ( INT ULONG -- [UINT] EXCEPTION|null )