"Bit Banding is a technique that uses two different regions of the address space to reference the same physical data. Within the primary bit-band region, each address corresponds to a single byte of data; within the bit-band alias, each address corresponds to a single bit of that same data.To access a particular bit in the bit-band region, its corresponding bit-band alias address is calculated as:bit-band alias address = bit-band base + 128 word offset + 4 bit number"

Suppose you have an integer variable "A"starting at memory address 0x(2000 A000). Give the fewest number of possible instructions that will set bit 17 of the variable A to 1:

a) Without bit-Banding:

b) With bit-Banding:

Vendor Specific (511 MB) E0100000-FFFFFFFF System Devices, such as the Nested Vectored Interrupt Controller Private Peripherals (External) E0040000-E00FFFFF Private Peripherals (Internal) E0000000-E003FFFF General-purpose VO ports, UARTS, Timers, Analog-to- Digital Converters, etc External Devices (1 GB) A0000000-OFFFFFFF External R/W Memory (1 GB) 60000000-9FFFFFFF Bit-band Alias (32 MB) 42000000-43FFFFFF Bit-band Region (1 MB) 40000000-40100000 Peripherals (512 KB) 40000000-5FFFFFFF Read/Write Memory (512 KB) 20000000-3FFFFFFF Bit-band Alias (32 MB) 22000000-23FFFFFF Program Code (512 KB) 00000000-1FFFFFFF Bit-band Region (1 MB) 20000000-20100000 Vendor Specific (511 MB) E0100000-FFFFFFFF System Devices, such as the Nested Vectored Interrupt Controller Private Peripherals (External) E0040000-E00FFFFF Private Peripherals (Internal) E0000000-E003FFFF General-purpose VO ports, UARTS, Timers, Analog-to- Digital Converters, etc External Devices (1 GB) A0000000-OFFFFFFF External R/W Memory (1 GB) 60000000-9FFFFFFF Bit-band Alias (32 MB) 42000000-43FFFFFF Bit-band Region (1 MB) 40000000-40100000 Peripherals (512 KB) 40000000-5FFFFFFF Read/Write Memory (512 KB) 20000000-3FFFFFFF Bit-band Alias (32 MB) 22000000-23FFFFFF Program Code (512 KB) 00000000-1FFFFFFF Bit-band Region (1 MB) 20000000-20100000