z00m's speccy knowledge base

syntax for byte halves of IX and IY:

        ld ixu,N
        ld ixl,N
        ld iyu,N
        ld iyl,N

substitution for high & low from sjasm:

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

address boundary:

boundary  align 256

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