SMULL

Signed Multiply Long multiplies two 32-bit register values, and writes the result to the 64-bit destination register.

This is an alias of SMADDL. This means:

313029282726252423222120191817161514131211109876543210
10011011001Rm011111RnRd
Uo0Ra

64-bit

SMULL <Xd>, <Wn>, <Wm>

is equivalent to

SMADDL <Xd>, <Wn>, <Wm>, XZR

and is always the preferred disassembly.

Assembler Symbols

<Xd>

Is the 64-bit name of the general-purpose destination register, encoded in the "Rd" field.

<Wn>

Is the 32-bit name of the first general-purpose source register holding the multiplicand, encoded in the "Rn" field.

<Wm>

Is the 32-bit name of the second general-purpose source register holding the multiplier, encoded in the "Rm" field.

Operation

The description of SMADDL gives the operational pseudocode for this instruction.

Operational information

If PSTATE.DIT is 1:


Internal version only: isa v30.25, AdvSIMD v27.01, pseudocode v85-xml-00bet8_rc3 ; Build timestamp: 2018-09-13T13:04

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