Suppose a computer has 32-bit instructions. The instruction set consists of 64 different operations. All instructions have an opcode and two address fields (allowing for two addresses). The first of these addresses must be a register direct address, and the second must be a memory address. Expanding opcodes are not used. The machine has 16 registers. How many bits can be used for the memory address?
Suppose a computer has 32-bit instructions. The instruction set consists of 64 different operations. All instructions have an opcode and two address fields (allowing for two addresses). The first of these addresses must be a register direct address, and the second must be a memory address. Expanding opcodes are not used. The machine has 16 registers. How many bits can be used for the memory address?
Chapter4: Processor Technology And Architecture
Section: Chapter Questions
Problem 1RP
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Suppose a computer has 32-bit instructions. The instruction set consists of 64 different operations. All instructions have an
opcode and two address fields (allowing for two addresses). The first of these addresses must be a register direct address, and
the second must be a memory address. Expanding opcodes are not used. The machine has 16 registers. How many bits can be
used for the memory address?
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