Arm VERSION 1.2 Bedienungsanleitung PDF herunterladen (Seite 294)

100

101

Directives Reference

7.2.8 FN

The

directive defines a name for a specified FPA floating-point register. The names

f0-f7 and F0-F7 are predefined.

Syntax

name FN expr

where:

name

is the name to be assigned to the floating-point register.

name

cannot be

the same as any of the predefined names listed in Predefined register and

coprocessor names on page 3-9.

expr

evaluates to a floating-point register number from 0 to 7.

Usage

Use

to allocate convenient names to FPA floating-point registers, to help you to

remember what you use each one for.

Note

Avoid conflicting uses of the same register under different names.

Example

energy FN 6 ; defines energy as a symbol for

; floating-point register 6

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