z00m's speccy knowledge base

syntax for byte halves of IX and IY:

        ld ixu,NN
        ld ixl,NN
        ld iyu,NN
        ld iyl,NN

substitution for high & low from sjasm:

high    equ (value / 256)
low     equ (value % 256)

adress boundary>

<code z80> boundary align 256 <code>