ARM Cortex-M4 - Vlma, Vlms

The Cortex-M4 Instruction Set
ARM DUI 0553A Copyright © 2010 ARM. All rights reserved. 3-139
ID121610 Non-Confidential
3.11.12 VLMA, VLMS
Multiplies two floating-point values, and accumulates or subtracts the results.
Syntax
VLMA{cond}.F32 Sd, Sn, Sm
VLMS{cond}.F32 Sd, Sn, Sm
where:
cond Is an optional condition code, see Conditional execution on page 3-18.
Sd Specifies the destination floating-point value.
Sn, Sm Are the operand floating-point values.
Operation
The floating-point Multiply Accumulate instruction:
1. Multiplies two floating-point values.
2. Adds the results to the destination floating-point value.
The floating-point Multiply Subtract instruction:
1. Multiplies two floating-point values.
2. Subtracts the products from the destination floating-point value.
3. Places the results in the destination register.
Restrictions
There are no restrictions.
Condition flags
These instructions do not change the flags.