Memory - Location

Card Puncher Data Processing


A memory location can be given:

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Z80 Registers
Device - Register

Register is a hardware device component that is used for two purposes: storage of value (at high speed). See passing argument and retrieving return value (to communicate between hardware devices)....
Card Puncher Data Processing
Instruction - Addressing Mode (Operand Addressing)

An addressing mode specifies how to calculate the real memory address of an instruction operand The term addressing mode is itself subject to different interpretations: either memory address calculation...
Card Puncher Data Processing
Instruction - Operand

Operand are the arguments of an instruction (ie they are the data source) The data for a source operand can be located in: a register, a the instruction itself (called immediate value) - ie an...

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