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After I posted 8086 microcode disassembled , Ken Shirriff sent me a high-resolution image of the microcode ROM from the 80386. I didn’t expect I would ever do anything with it for a couple of reasons: one is that it’s absolutely huge (94720 bits) compared to the 8086 one (10752 bits) so (even with bitract or similar)…
Recently I realised that, as part of his 8086 reverse-engineering series, Ken Shirriff had posted online a high resolution photograph of the 8086 die with the metal layer removed . This was something I have been looking for for some time, in order to extract and disassemble the 8086 microcode. I had previously found…
[Update: VileR’s writeup of the 1K colour mode is now up. His has fewer technical details but is much easier to understand than mine as it has pictures!]
The last 100 seconds of 8088 MPH sound very different to the rest of the demo. The end tune is actually a 4-channel Amiga MOD file (which you can download here ) composed by coda . Playing back a MOD through PC speaker on such a slow machine has never been done before. Here is how we did it.