Function:                                                                 

This instruction regularly performs the following action:
  - binary number in AL
  - AH = AL / 10d
  - AL = AL MOD 10d

Thus creating an unpacked BCD in AX. The normal opcode decodes as follows:
d4,0a. The instruction itself is an instruction plus operand. By replacing
the second byte with any number in the range 00 - ff you can build your own
instruction AAM for various number systems in that range. For example by
coding d4,07 you achieve an instruction that performs:
  - binary number in AL
  - AH = AL / 07d
  - AL = AL MOD 07d






AAS   Adjust After BCD Subtraction
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