Special Registers

Descrição

Describes the different registers in the CPU
Jonathan Wakefield
FlashCards por Jonathan Wakefield, atualizado more than 1 year ago
Jonathan Wakefield
Criado por Jonathan Wakefield mais de 7 anos atrás
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Resumo de Recurso

Questão Responda
MAR Memory Address Register - Used to hold the address of the data in memory
MDR Memory Data Register - Used to hold the data retrieved from memory or data to be sent to memory
PC Program Counter - Holds memory address of the next instruction. Indicates where computer is in programme sequence.
Acc Accumulator - Register in which results from arithmetic and logic are stored.
CIR Current Instruction Register - Holds current instruction to be executed having been fetched from memory. Stores operator and operand for current instruction

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