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48 lines
550 B
NASM
48 lines
550 B
NASM
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CallFunctionInTable::
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; Call function a in jumptable hl.
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; de is not preserved.
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push hl
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push de
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push bc
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add a
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ld d, 0
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ld e, a
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add hl, de
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ld a, [hli]
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ld h, [hl]
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ld l, a
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ld de, .returnAddress
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push de
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jp hl
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.returnAddress
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pop bc
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pop de
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pop hl
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ret
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IsInArray::
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; Search an array at hl for the value in a.
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; Entry size is de bytes.
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; Return count b and carry if found.
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ld b, 0
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IsInRestOfArray::
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ld c, a
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.loop
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ld a, [hl]
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cp -1
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jr z, .notfound
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cp c
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jr z, .found
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inc b
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add hl, de
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jr .loop
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.notfound
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and a
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ret
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.found
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scf
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ret
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