Help needed related operating systems ! Thanx

Suppose the hypothetical processor of Figure 1.3 (the hypothetical machine discussed in class) also has two I/O instructions: 1) 1001 = Load AC from 10 1010- Store AC to IO In these cases, the 12-bit address identifies a particular external device. Show the program execution (using format of Figure 1.4) for the following program: a) Load AC from IO device 3 b) Add contents of memory location 940 c) Store AC to I/O device 4 Assume that the next value retrieved from device 3 is 10 and the memory location 940 contains a value of 8 2) Consider the hypothetical 32-bit microprocessor having 32-bit instructions composed of two fields. The first byte contains the opcode and the remainder an immediate operand r an operand address. ) What is the maximum directly addressable memory capacity (in bytes) assuming b) Discuss the impact on the system speed if the microprocessor bus has a 16-bit c) Discuss the impact on the system speed if the microprocessor bus has a 32-bit the memory is byte-addressable? local address bus and a 16-bit local data bus local address bus and a 16-bit local data bus Suppose the hypothetical processor of Figure 1.3 (the hypothetical machine discussed in class) also has two I/O instructions: 1) 1001 = Load AC from 10 1010- Store AC to IO In these cases, the 12-bit address identifies a particular external device. Show the program execution (using format of Figure 1.4) for the following program: a) Load AC from IO device 3 b) Add contents of memory location 940 c) Store AC to I/O device 4 Assume that the next value retrieved from device 3 is 10 and the memory location 940 contains a value of 8 2) Consider the hypothetical 32-bit microprocessor having 32-bit instructions composed of two fields. The first byte contains the opcode and the remainder an immediate operand r an operand address. ) What is the maximum directly addressable memory capacity (in bytes) assuming b) Discuss the impact on the system speed if the microprocessor bus has a 16-bit c) Discuss the impact on the system speed if the microprocessor bus has a 32-bit the memory is byte-addressable? local address bus and a 16-bit local data bus local address bus and a 16-bit local data bus