By: Marcus (m.delete@this.bitsnbites.eu), August 7, 2022 11:30 pm
Room: Moderated Discussions
Megol (golem960.delete@this.gmail.com) on August 7, 2022 2:01 pm wrote:
> Marcus (m.delete@this.bitsnbites.eu) on August 6, 2022 4:36 am wrote:
> > Have you seen the 68080? It's a 64-bit 4-wide OoO 68k CPU with more registers and instructions
> > than the 32-bit 68k line (68000-68060). It's implemented in an FPGA. Pretty impressive IMO.
>
> AFAIK it's an in-order 2 wide superscalar with load-execute-store pipelines and powerful instruction fusion?
> Personally the extensions are too hacky but yes, pretty impressive.
>
I have trouble finding any definitive information and thorough documentation, but check out http://www.apollo-core.com/index.htm?page=features
It states:
* Out of Order CPU
* Out of Order FPU
* Executes up to 4 instructions per clock cycle
OTOH it only has two integer execution units, according to the same page, so four instructions may be when mixing in FPU & AMMX?
> Marcus (m.delete@this.bitsnbites.eu) on August 6, 2022 4:36 am wrote:
> > Have you seen the 68080? It's a 64-bit 4-wide OoO 68k CPU with more registers and instructions
> > than the 32-bit 68k line (68000-68060). It's implemented in an FPGA. Pretty impressive IMO.
>
> AFAIK it's an in-order 2 wide superscalar with load-execute-store pipelines and powerful instruction fusion?
> Personally the extensions are too hacky but yes, pretty impressive.
>
I have trouble finding any definitive information and thorough documentation, but check out http://www.apollo-core.com/index.htm?page=features
It states:
* Out of Order CPU
* Out of Order FPU
* Executes up to 4 instructions per clock cycle
OTOH it only has two integer execution units, according to the same page, so four instructions may be when mixing in FPU & AMMX?
