# Talk:Binary multiplier

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## Misc

The 4 bit by 4 bit multiplier figure looks flawed - namely, the ordering of the bits of Multiplicand B is reversed when they enter 2nd and 3rd adders.

Fixed. Quart${\displaystyle parcialprouductst}$ (talk) 20:47, 17 March 2010 (UTC)

The fixed version is a 4 bit multiplier, it was reverted for the time being. Once it is reverted I suggest we do an article rewrite because it doesn't really match the style of other pages, and its kind of hard to read.Deadcellplus (talk) 20:26, 13 October 2008 (UTC)

## Multiply Instruction Bit Sizes

Microprocessor Integer Multiply Instruction Bit Sizes
Microprocessor 8 x 8 = 16 16 x 16 = 32 32 x 16 = 32 32 x 32 = 32 32 x 32 = 64 64 x 64 = 64 64 x 64 = 128
ARM (older cores) Yes* Yes* Yes Yes
ARM Cortex-M0/M0+/M1 Yes
ARM Cortex-M3/M4/M7 Yes* Yes* Yes Yes
ARM Cortex-A & Cortex-R Yes* Yes* Yes Yes
ARM Cortex-A53/A57 (ARMv8-A) Yes Yes Yes Yes*
Atmel AVR32 Yes Yes
Microchip PIC32 Yes Yes
Motorola 6809 Yes
• Note: ARM Cortex-A53/A57 (ARMv8-A) requires an extra instruction to create the 128-bit result.

I'm considering adding this table to the first section. It still needs further expansion. Thoughts? • SbmeirowTalk • 01:21, 28 January 2015 (UTC)