The 8088 die is almost the same as the 8086, but there are a few differences. There are two prefetch queue registers instead of three. But the 8088 queue regist

The 8088 die is almost the same as the 8086, but there are a few differences. There are two prefetch queue registers instead of three. But the 8088 queue registers are slightly more complicated because the chip needs to write one byte at a time instead of one word. So there's just a small gap in the layout. There are various changes in the memory cycle circuitry. And there are a few changes to the microcode. Once I finish with the 8086, I plan to look at the changes in the 8088 more closely.