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Brian H
Brian H
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I'm wanting to identify which 8-bit microprocessor would have the best performance for a multiply-accumulate operation.

By "operation", I mean the minimal implementation for 16-bit operands and 32-bit result in assembly language.

By "8-bit microprocessor", I mean an early microprocessor (pre-1990) having an 8-bit external data bus -- I don't care about ALU or register size.

By "best performance", I mean lowest elapsed wall-clock-time to compute and store result.

Is there an objective answer, probably based on the CPU having a "fast" hardware multiplier, while sporting sufficient scratchpad registers and high clock rate?

I'm wanting to identify which 8-bit microprocessor would have the best performance for a multiply-accumulate operation.

By "operation", I mean the minimal implementation for 16-bit operands and 32-bit result in assembly language.

By "8-bit microprocessor", I mean an early microprocessor (pre-1990) having an 8-bit external data bus -- I don't care about ALU size.

By "best performance", I mean lowest elapsed wall-clock-time to compute and store result.

Is there an objective answer, probably based on the CPU having a "fast" hardware multiplier, while sporting sufficient scratchpad registers and high clock rate?

I'm wanting to identify which 8-bit microprocessor would have the best performance for a multiply-accumulate operation.

By "operation", I mean the minimal implementation for 16-bit operands and 32-bit result in assembly language.

By "8-bit microprocessor", I mean an early microprocessor (pre-1990) having an 8-bit external data bus -- I don't care about ALU or register size.

By "best performance", I mean lowest elapsed wall-clock-time to compute and store result.

Is there an objective answer, probably based on the CPU having a "fast" hardware multiplier, while sporting sufficient scratchpad registers and high clock rate?

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Brian H
Brian H
  • 62.1k
  • 20
  • 214
  • 371

Fastest 8-bit microprocessor for multiply-accumulate?

I'm wanting to identify which 8-bit microprocessor would have the best performance for a multiply-accumulate operation.

By "operation", I mean the minimal implementation for 16-bit operands and 32-bit result in assembly language.

By "8-bit microprocessor", I mean an early microprocessor (pre-1990) having an 8-bit external data bus -- I don't care about ALU size.

By "best performance", I mean lowest elapsed wall-clock-time to compute and store result.

Is there an objective answer, probably based on the CPU having a "fast" hardware multiplier, while sporting sufficient scratchpad registers and high clock rate?