base:kernal_floating_point_mathematics
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| base:kernal_floating_point_mathematics [2020-12-06 20:22] – [7.3 Integer to FP], Lothar Englisch says $bc3c converts a signed 8-bit value. pararaum | base:kernal_floating_point_mathematics [2020-12-06 20:48] (current) – [7.1 FP to integer] pararaum | ||
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| ==== 7.1 FP to integer ==== | ==== 7.1 FP to integer ==== | ||
| + | There seems to be only a single routine in the ROMs, see Lothar Englisch, "The Advanced Machine Language Book", Abacus Software, 1984, p 28. IT is located at $BC9B and converts the floating-point value in the FAC (the fractional portion is truncated) into a whole number. The four mantissa bytes ($62-$65) contain the value in a big-endian representation. | ||
| ==== 7.2 FP to string ==== | ==== 7.2 FP to string ==== | ||
base/kernal_floating_point_mathematics.txt · Last modified: 2020-12-06 20:48 by pararaum