4 ms·

>The word */ multiplies by a ratio, with a double-length intermediate product. It eliminates the need for floating-point. Anyone who knows a lot about numeric

• bugfix-66 4y ago
  It's just a fixed point instruction. Fixed point multiply: a*m times b*m yields (a*b)*m = a*m * b*m / m In the above, m is the fixed point 1. For example, 65536 for a 16.16 fixed point. The instruction allows you to multiply a*m by b*m and then divide by m, renormalizing your fixed point result. Chuck Moore thinks nobody needs floating point because fixed point is sufficient!
  • Someone 4y ago
    And, importantly, the double-length intermediate result prevents the rapid loss of precision, compared to the naive alternatives of : */ * 65536 / : and : */ 65536 / * ;