The 286's internal registers (2022)
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The 286's internal registers (2022)
1–10 of 18 posts
Re: The 286's internal registers (2022)
#2I miss the Wang 286 I had, I was dumb and tossed it out when I had to move :(
Re: The 286's internal registers (2022)
#3I miss the Wang 286 I had, I was dumb and tossed it out when I had to move :(
I go back and forth with it. Once I got some money i bought some old dream machines back. it was great for a while. but At one point i had like 15 retro computers that i almost never used, eventually i went Marie Kondo and gave a bunch away and it feels good to have actual closet space. kept a few that were special. now... about this pile of 30 old hard disks i have... oh and my collection of usb type-b and usb-mini cables...
Re: The 286's internal registers (2022)
#4I miss the Wang 286 I had, I was dumb and tossed it out when I had to move :(
I go back and forth with it. Once I got some money i bought some old dream machines back. it was great for a while. but At one point i had like 15 retro computers that i almost never used, eventually i went Marie Kondo and gave a bunch away and it feels good to have actual closet space. kept a few that were special. now... about this pile of 30 old hard disks i have... oh and my collection of usb type-b and usb-mini…
I did something in between - I kept the physically small systems (Landisk, VAXstation VLC, Mac LC III+, Mac Quadra 610, Cobalt Raq, EdgeRouter, various Pis, et cetera) and some of the more useful larger ones (Amiga 4000, VAXstation 4000/60 and 4000/90, AlphaServer DS25), and I put them to use building NetBSD pkgsrc packages so they're useful.
Considering the fact that I paid less than $100 for the VAXstation 4000/60, for instance, and they go for > $1000 on eBay these days, I'm glad I kept all my VAX hardware. While 286 systems don't cost quite as much, the prices are only going to go up.
Re: The 286's internal registers (2022)
#5Earlier quoted context omitted.
I go back and forth with it. Once I got some money i bought some old dream machines back. it was great for a while. but At one point i had like 15 retro computers that i almost never used, eventually i went Marie Kondo and gave a bunch away and it feels good to have actual closet space. kept a few that were special. now... about this pile of 30 old hard disks i have... oh and my collection of usb type-b and usb-mini…
I did something in between - I kept the physically small systems (Landisk, VAXstation VLC, Mac LC III+, Mac Quadra 610, Cobalt Raq, EdgeRouter, various Pis, et cetera) and some of the more useful larger ones (Amiga 4000, VAXstation 4000/60 and 4000/90, AlphaServer DS25), and I put them to use building NetBSD pkgsrc packages so they're useful. Considering the fact that I paid less than $100 for the VAXstation 4000/60,…
Sounds like you live in a computer museum ;) How did you end up owning these?
I kept a handful of older computers, my ZX-81 still sitting somewhere, ZX-Spectrum, Apple Newton. My HP-48GX is used by my daughter. I have a dual CPU 486 machine... I doubt any of these is worth any $'s ...
Re: The 286's internal registers (2022)
#6I was wondering why the 286 protected mode wasn't more popular. This sums it up pretty nicely https://en.wikipedia.org/wiki/Protected_mode#The_286
Re: The 286's internal registers (2022)
#7Were the segment registers (fs, gs) slower than the general registers (ax, dx)? I used to use them all the time as temp variables :/
Re: The 286's internal registers (2022)
#8I was wondering why the 286 protected mode wasn't more popular. This sums it up pretty nicely https://en.wikipedia.org/wiki/Protected_mode#The_286
This might answer my question here, but it's unclear if the same performance hit happens if the CPU is in Real Mode:
Re: The 286's internal registers (2022)
#9Earlier quoted context omitted.
I did something in between - I kept the physically small systems (Landisk, VAXstation VLC, Mac LC III+, Mac Quadra 610, Cobalt Raq, EdgeRouter, various Pis, et cetera) and some of the more useful larger ones (Amiga 4000, VAXstation 4000/60 and 4000/90, AlphaServer DS25), and I put them to use building NetBSD pkgsrc packages so they're useful. Considering the fact that I paid less than $100 for the VAXstation 4000/60,…
Sounds like you live in a computer museum ;) How did you end up owning these? I kept a handful of older computers, my ZX-81 still sitting somewhere, ZX-Spectrum, Apple Newton. My HP-48GX is used by my daughter. I have a dual CPU 486 machine... I doubt any of these is worth any $'s ...
I think Linux dropped support for 486, right? That was the only thing I remember that supported dual 486.
Re: The 286's internal registers (2022)
#10My first computer was a 386. There was a reference program I used all the time and I can’t remember it for the life of me. It was menu driven and had a ton of information on hardware, including CPU’s, UARTS, registers and their uses, interrupts etc. Sounds vague I know, but does anyone have any idea what that program was called?