The Intel 80 188 is a version of the Intel 80 186 microprocessor with an 8-bit external data bus, instead of 16 bits. This makes it cheaper to connect peripherals. Since 80 188 is very similar to the 80 186, it has a throughput of 1 million instructions per second.
Like the 8086, the 80 188 published four 16-bit general registers, which is eight 8-bit registers can also be used. It also included six or more 16-bit registers, which included, for example, the stack pointer, the instruction pointer, index registers, or a wet floor register that acted as a flag, for example, compared with operations .
Like the 8086, the processor also four 16-bit segment registers that the handling of more than 64 KB of memory, which is the limit of a 16-bit architecture, by introducing an offset value added, after being shifted left 4 bits to the value of another register.
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