Offset address relative to DS by default CX - the count register (divided into CH / CL): The site you linked is accurate the following is a copy/paste from it with a couple light edits:Ĩ086 CPU has 8 general purpose registers, each register has its ownĪX - the accumulator register (divided into AH / AL): Generates shortest machine code: short-form encodings existīX - the base address register (divided into BH / BL). (So loading/storing a 16-bit word takes 2 bus cycles. Note that the 8086 has 16 bit data bus the 8088 has an 8 bit data bus. (A few instructions treat the combination of DX and AX as a 32 bit integer, like div input and mul output.) The 80 are 16 bit processors - their registers are each 16 bits in width.
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