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AIX Version 4.3 Assembler Language Reference

mulli or muli (Multiply Low Immediate) Instruction

Purpose

Multiplies the contents of a general-purpose register by a 16-bit signed integer and stores the result in another general-purpose register.

Syntax

PowerPC
mulli RT,RA,SI
POWER
muli RT,RA,SI

Description

The mulli and muli instructions sign extend the SI field to 32 bits and then multiply the extended value by the contents of general-purpose register (GPR) RA. The least significant 32 bits of the 64-bit product are placed in the target GPR RT.

The mulli and muli instructions have one syntax form and do not affect Condition Register Field 0 or the Fixed-Point Exception Register.

Parameters

RT Specifies target general-purpose register where result of operation is stored.
RA Specifies source general-purpose register for operation.
SI Specifies 16-bit signed integer for operation.

Examples

The following code multiplies the contents of GPR 4 by 10 and places the result in GPR 6:

# Assume GPR 4 holds 0x0000 3000.
mulli 6,4,10
# GPR 6 now holds 0x0001 E000.

Related Information

The mul (Multiply) instruction, mulhw (Multiply High Word) instruction, mulhwu (Multiply High Word Unsigned) instruction, mullw or muls (Multiply Low Word) instruction.

Fixed-Point Processor.

Fixed-Point Arithmetic Instructions.


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