MITSUBISHI ELECTRIC 700 Series - Manual (Page 149)

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Basic Instructions
3.26.3 Arithmetic Operation Instructions
The arithmetic operation instructions are instructions which perform the addition,
subtraction, multiplication, and division of two BIN data.
(1) Arithmetic operation with BIN (Binary)
• If the operation result of an addition instruction exceeds 32767 , the result
becomes a negative value.
• If the operation result of a subtraction instruction is less than - 32768 , the result
becomes a positive value.
• The operation of a positive value and a negative value is as follows:
5 + 8 → 13
5 - 8 → -3
5 x 3 → 15
-5 x 3 → -15
-5 x (-3) → 15
-5 / 3 → -1 and remainder -2
5 / (-3) → -1 and remainder 2
-5 / (-3) → 1 and remainder -2