ARM Technical Support Knowledge Articles


Applies to: A166 Macro Assembler


Information in this article applies to:


Does the A166 Assembler perform calculations using 32-bit math or 64-bit math?


In A166 V4.01, expression evaluation was enhanced to use 64-bit arithmetic. Previous versions of the A166 Assembler used 16-bit math when calculating expressions. In the following equation:

Value EQU (8000h + 9000h) / 2

A166 Version 3 calculates a value of 800h, since the result of the addition is 1000h (a 16-bit value).

A166 Version 4.01 calculates a value of 8800h, since the result of the addition is 110000h (a 64-bit value).

Article last edited on: 2007-07-13 12:58:52

Rate this article

Disagree? Move your mouse over the bar and click

Did you find this article helpful? Yes No

How can we improve this article?

Link to this article
Copyright © 2011 ARM Limited. All rights reserved. External (Open), Non-Confidential