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What facts go into determining the use of the addressing bits of an instruction?
Following facts determine the use of addressing bits of an instruction: Number of addressing modes: Sometimes an addressing mode can be indicated implicitly. In other cases, the addressing modes must be explicit, and one or more mode bits will be needed. Number of operands: Typical instructions on today's machines provide for two operands. Each operand address in the instruction might require its own mode indicator, or the use of a mode indicator could be limited to just one of the address fields. Register versus memory: The more that registers can be used for operand references, the fewer bits are needed. Number of register sets: One advantage of using multiple register sets is that, for a fixed number of registers, a functional split requires fewer bits to be used in the instruction. Address range: For addresses that reference memory, the range of addresses that can be referenced is related to the number of address bits. Because this imposes a severe limitation, direct addressing is rarely used. With displacement addressing, the range is opened up to the length of the address register. Address granularity: In a system with 16- or 32-bit words, an address can reference a word or a byte at the designer's choice. Byte addressing is convenient for character manipulation but requires, for a fixed-size memory, more address bits.
How do you calculate the virtual address space for a given system?
To calculate the virtual address space for a given system, you need to determine the number of bits used for addressing in the system's memory architecture. The virtual address space is typically 2 raised to the power of the number of bits used for addressing, which gives you the total number of unique memory addresses that can be accessed by the system.
Within a classful addressing subnet mask the bits indicate that corresponding bits in an IPv4 address contain network information?
the 1 bits
How many bits are in message?
The number of bits in a message depends on its size and the encoding used. For example, if a message contains 100 characters and uses standard ASCII encoding, it would consist of 800 bits (100 characters x 8 bits per character). In general, to determine the total bits, multiply the number of characters by the number of bits per character based on the encoding scheme.
What addressing scheme was introduced in 1995 to resolve depletion of networking addresses by allowing for 128 bits to be used in addressing?
IPv6
Difference between classful and classless ip addresses?
The difference between classful IP addressing and classless IP addressing is in selecting the number of bits used for the network ID portion of an IP address. In classful IP addressing, the network ID portion can take only the predefined number of bits 8, 16, or 24. In classless addressing, any number of bits can be assigned to the network ID.
How many digits does a binary number have?
The number of digits in a binary number, also known as its bits, depends on its value. For a binary number representing a non-negative integer ( n ), the number of bits required can be calculated using the formula ( \lfloor \log_2(n) \rfloor + 1 ). For example, the binary representation of the decimal number 5 is ( 101 ), which has 3 bits. The number of bits increases as the value of ( n ) increases.
How many bits are needed to represent one symbols?
The number of bits needed to represent one symbol depends on the total number of unique symbols. The formula to calculate the number of bits required is ( n = \lceil \log_2(S) \rceil ), where ( S ) is the number of unique symbols. For example, to represent 256 unique symbols, 8 bits are needed, since ( \log_2(256) = 8 ).
How many bits are contained in a register pair?
A register pair typically consists of two registers, each of which can contain a specific number of bits, commonly 8, 16, or 32 bits, depending on the architecture. Therefore, the total number of bits in a register pair is double the bit width of a single register. For example, if each register is 16 bits, the register pair would contain 32 bits.
What is the number of bits in a standard class B address?
16 bits example class b: nnn.nnn.0.0 - nnn.nnn.255.255 subnetmask: 255.255.0.0 example class c (8 bits): nnn.nnn.nnn.0 - nnn.nnn.nnn.255 subnetmask: 255.255.255.0 exaple class a (24 bits): nnn.0.0.0 - nnn.255.255.255 subnetmask: 255.0.0.0
What is the ATA standard that changes the number of bits used to address data on a hard drive?
ATA/ATAPI-6 standard (aka ATA/100) allows for 48-bit addressing over the original 28-bits. This allowed for the breaking of the 137GB barrier limitation.
How can you create more subnets?
To create more subnets, you can use subnetting, which involves dividing a larger network into smaller, manageable segments. This is achieved by borrowing bits from the host portion of an IP address to create additional network bits, effectively increasing the number of available subnets. For example, if you start with a /24 subnet and borrow 2 bits, you can create 4 additional subnets with a /26 prefix. Ensure that the subnet mask and addressing scheme align with your network design and requirements.
