PENTIUM ARCHITECTURE:
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• REGISTER SET
• INSTRUCTION FORMAT
• ADDRESSING MODES
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REGISTERS:
The processor has 16 registers for use in general systems. These registers can be grouped as:
General purpose data registers:
• Eight registers are available for storing operands and pointers.
• These are EAX, EBX, ECX, EDX, ESI, EDI, EBP, and ESP.
• These are provided for holding operands for logic and arithmetic operations, operands for address calculations, memory pointers.
• The ESP register should be used very carefully. It holds the stack pointer and generally should not be used for any other purpose.
• There are some special uses of each register:
EAX: Accumulator for operands and result data.
EBX: Pointer to data in the DS segment.
ECX: Counter for string......
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