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assemblyz80

Whatis the difference in this case between doing dw and db?

value db 0h, 10h

value dw 10h

Are they the same? What is the difference?

If I used, for example,

ld A, (value)

What would happen in both cases?

Solution 
  • value db 0h, 10h

    the machine code produced is (hexa bytes): 00 10

    value dw 10h

    the machine code produced is (hexa bytes): 10 00 (because Z80 is little-endian CPU)

    ld A, (value) will load A with value: in first case 0, and second 16.