The Intel 8088 (and its big brother 8086 ... as well as a few differences that are mostly due to the 8088’s cut-down 8-bit data bus. While the 8086 has 3 16-bit slots in the instruction ...

Although these were pin- and ISA-compatible, the internal microcode was distinct from the Intel microcode due to the different internal microarchitecture. In addition the V20 and V30 also had a ...