Table of Contents - TG Drives
Table of Contents - TG Drives
Table of Contents - TG Drives
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154<br />
MultDiv,<br />
MULTDIV,<br />
Group Group<br />
No.<br />
MultDiv<br />
GENERAL<br />
Description<br />
MultDiv.Num1 0 -2 31 ..2 31 -1 RW<br />
EXTENDED REGISTER GROUPS<br />
49 The operation support full 64-bit precision in the<br />
multiplication and division. Also division by zero and<br />
overflow detection has been added. In case an<br />
overflow is detected result will be +-MAXINT. The<br />
division does automatic round <strong>of</strong>f.<br />
This group performs the following operation,<br />
MultDiv.<br />
Num1*<br />
MultDiv.<br />
Num2<br />
= MultDiv.<br />
Re sult,<br />
MultDiv.<br />
Remin<br />
der<br />
MultDiv.<br />
Denom<br />
FUNCTION<br />
An Internal calculation method that uses 64-bit precision.<br />
The calculations are made when a result variable is read.<br />
Automatic round<strong>of</strong>f is done by adding 50% <strong>of</strong> the Denominator to the Numerator<br />
before dividing.<br />
RELATED ITEMS<br />
MulDiv, DivMul instructions.<br />
EXAMPLE USAGE<br />
For all scaling purposes where 32-bit precision is inadequate.<br />
GROUP MEMBERS (GROUP 49)<br />
Group.Member Member<br />
No.<br />
Numerator #1 is a 32bit signed value, the numerator is<br />
formed by the product: MultDiv.Num1 * MultDiv.Num2.<br />
The product has 64-bit precision but is not available to read.<br />
MultDiv.Num2 1 -2 31 ..2 31 -1 RW<br />
Numerator #2 is a 32bit signed value, the numerator is<br />
formed by the product: MultDiv.Num1 * MultDiv.Num2.<br />
The product has 64-bit precision but is not available to read.<br />
MultDiv.Denom 2 -2 31 ..2 31 -1 RW<br />
Range Ability Default<br />
User's Manual 5.1 Inmotion Technologies AB<br />
Doc. No.9032 0027 01 (B), Rev. 11.07.2001
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