DOS ain't dead - Good PC's needed (80386, 8086, 4004 :-D) report what you h

Good PC's needed (80386, 8086, 4004 :-D) report what you h (Developers)

posted by Steve , US, 01.05.2008, 21:14

> BTW as I readed, SX has FPU physically on silicon die but it was hardware
> disabled (even if this block was OK). It's cheaper to do one CPU line than
> two :)

Not disabled, but defective. Intel's method was to have one production line, then test chips. Good FPU > sell as DX. Bad FPU > sell as SX. Similarly with speed - run chip at increasing frequencies, then label according to where errors begin.

> And 487 shouldn't be a coproccessor but full-featured 486DX with
> slightly different pinout :)

Correct.

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Complete thread:

Good PC's needed (80386, 8086, 4004 :-D) report what you h - DOS386, 01.05.2008, 05:02 (Developers)
- Good PC's needed (80386, 8086, 4004 :-D) report what you h - Rugxulo, 01.05.2008, 05:44
  - Good PC's needed (80386, 8086, 4004 :-D) report what you h - DOS386, 01.05.2008, 05:50
    - Good PC's needed (80386, 8086, 4004 :-D) report what you h - Rugxulo, 01.05.2008, 05:57
      - Good PC's needed (80386, 8086, 4004 :-D) report what you h - RayeR, 01.05.2008, 14:12
        Good PC's needed (80386, 8086, 4004 :-D) report what you h - Steve, 01.05.2008, 21:14
        Good PC's needed (80386, 8086, 4004 :-D) report what you h - RayeR, 02.05.2008, 01:15
        Good PC's needed (80386, 8086, 4004 :-D) report what you h - Steve, 02.05.2008, 09:24
        Good PC's needed (80386, 8086, 4004 :-D) report what you h - RayeR, 02.05.2008, 16:04
        Good PC's needed (80386, 8086, 4004 :-D) report what you h - Steve, 03.05.2008, 08:01
        Good PC's needed (80386, 8086, 4004 :-D) report what you h - RayeR, 03.05.2008, 14:12
        Good PC's needed (80386, 8086, 4004 :-D) report what you h - marcov, 02.05.2008, 23:19
        Good PC's needed (80386, 8086, 4004 :-D) report what you h - Steve, 03.05.2008, 08:03
        Good PC's needed (80386, 8086, 4004 :-D) report what you h - RayeR, 03.05.2008, 14:14
        Good PC's needed (80386, 8086, 4004 :-D) report what you h - Steve, 03.05.2008, 15:20
        Good PC's needed (80386, 8086, 4004 :-D) report what you h - marcov, 02.05.2008, 23:17
        Good PC's needed (80386, 8086, 4004 :-D) report what you h - RayeR, 03.05.2008, 14:23
- Good PC's needed (80386, 8086, 4004 :-D) report what you h - marcov, 01.05.2008, 14:13
- Good PC's needed (80386, 8086, 4004 :-D) report what you h - rr, 02.05.2008, 16:43
- 4004 - Steve, 05.05.2008, 01:41
  - 4004 - Rugxulo, 05.05.2008, 18:45
    - 4004 - Steve, 06.05.2008, 04:58