Question

What is the purpose of the double-speed ALUs in the IA-32 architecture?

a.

To perform floating-point operations

b.

To move data between memory and the FPU stack

c.

To execute two operations in a single clock cycle

d.

To reorder μops based on resource availability

Posted under Reverse Engineering

Answer: (c).To execute two operations in a single clock cycle Explanation:Port 0 and port 1 both have double-speed ALUs (arithmetic logical units). This is a significant aspect of IA-32 optimizations because it means that each ALU can actually perform two operations in a single clock cycle.

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