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2 Instructions
2-240
CP1E CPU Unit Instructions Reference Manual(W483)
FLOATING-POINT MULTIPLY (*F)
Note 1 The results could be zero (including underflows), a numeral, +∞, or –∞.
ER The Error Flag will be turned ON and the instruction will not be executed.
FLOATING-POINT DIVIDE (/F)
Note 1 The results will be zero for underflows.
2 The results could be zero (including underflows), a numeral, +∞, or –∞.
ER The Error Flag will be turned ON and the instruction will not be executed.
Multiplicand
Multiplier 0 Numeral +∞ –∞ NaN
0 00ERER
Numeral 0 See note 1. +/–∞ +/–∞
+∞ ER +/–∞ +∞
–∞
–∞ ER +/–∞
–∞
+∞
NaN ER
Dividend
Divisor 0 Numeral +∞ –∞ NaN
0 ER +/–∞ +∞ –∞
Numeral 0 See note 2. +/–∞ +/–∞
+∞ 0 0 (See note 1) ER ER
–∞ 0 0 (See note 1) ER ER
NaN ER