Re: [Qemu-devel] [PATCH v6 2/7] target/mips: Support R5900 specific three-operand MULT and MULTU

[Maciej W. Rozycki]

On Sun, 30 Sep 2018, Philippe Mathieu-Daudé wrote:

> > TX79 do not implement DMULT or DMULTU, the Tx49 does and they do support 
> > the extra `rd' operand there[1].  Still no DMADD or DMADDU though.
> 
> As does the TX39.

 Umm, the TX39 is 32-bit and does not have 64-bit instructions, so it 
can't have DMULT or DMULTU.

> There is also the TX99 series (based on 25Kf):
> https://www.toshiba.co.jp/about/press/2002_02/pr1901.htm

 Hmm, did the TX99 actually tape out?  I thought the 25Kf was withdrawn 
and never made it to market.  I only saw a couple of 25Kf LVs on Malta CPU 
daughtercards back in my MIPS UK days in mid 2000s.

  Maciej