As far as I know, there are still rad hardened 486 chips being made for satellite applications. But my info may be a few years out of date.
The 486DX was the last cpu I truly understood (i did things like disassemble code for it). After the pentium instructions were added, I kind of stopped tracking changes to instruction sets. Now I’d be lucky to follow someone else’s assembly with the help of tools. It was a good time for me, back in the day.
Old 386 and 486 code was really easy. I also got lost around the Pentium era as well. At the time, it was getting really hacky to work through extended and expanded memory while also learning to work with 32bit registers.
At the time, correctly or not, I just felt I was learning to navigate a bunch of architecture bandaids and not anything that was going to be static for the next few years. I just kinda put it aside, TBH.
ASM is still useful for MCUs at times and developing that feels like the good ol days…
As far as I know, there are still rad hardened 486 chips being made for satellite applications. But my info may be a few years out of date.
The 486DX was the last cpu I truly understood (i did things like disassemble code for it). After the pentium instructions were added, I kind of stopped tracking changes to instruction sets. Now I’d be lucky to follow someone else’s assembly with the help of tools. It was a good time for me, back in the day.
Old 386 and 486 code was really easy. I also got lost around the Pentium era as well. At the time, it was getting really hacky to work through extended and expanded memory while also learning to work with 32bit registers.
At the time, correctly or not, I just felt I was learning to navigate a bunch of architecture bandaids and not anything that was going to be static for the next few years. I just kinda put it aside, TBH.
ASM is still useful for MCUs at times and developing that feels like the good ol days…