((Course: computer architecture))

In a one-byte word system, the following subset of registers/memory can be used as 8-bit operand or 8-bit address with initial values in hex being: RA = (7F)h, RB = (77)h, RC = (11)h, Mem[RA] = (RB)h, Mem[RB] = (RC)h

1. Perform a 16-bit sign extension of RA? Write value in hex. 2. Calculate branch target address when the following branch instruction with given offset; RC BNQ RA, RB, 8 3. Determine if there is a carry out from the addition of RA and RB?