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by vardump
4094 days ago
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7.16 MHz (NTSC) / 7.09 MHz (PAL), and what's worse, average instruction takes about 8 clock cycles. Fastest ones take 4 cycles. "move" (like mov on x86) takes from 4 up to 36 cycles depending on addressing modes. Multiplication is up to 70 cycles. Divide up to 140 cycles (unsigned) and 158 (signed). In some sense it's really like a 1.7 MHz machine. And that's being generous. |
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