1 files changed, 47 insertions, 0 deletions
diff --git a/home/array2.asm b/home/array2.asm
new file mode 100644
index 00000000..f4ed8389
--- /dev/null
+++ b/home/array2.asm
@@ -0,0 +1,47 @@
+CallFunctionInTable::
+; Call function a in jumptable hl.
+; de is not preserved.
+	push hl
+	push de
+	push bc
+	add a
+	ld d, 0
+	ld e, a
+	add hl, de
+	ld a, [hli]
+	ld h, [hl]
+	ld l, a
+	ld de, .returnAddress
+	push de
+	jp hl
+.returnAddress
+	pop bc
+	pop de
+	pop hl
+	ret
+
+IsInArray::
+; Search an array at hl for the value in a.
+; Entry size is de bytes.
+; Return count b and carry if found.
+	ld b, 0
+
+IsInRestOfArray::
+	ld c, a
+.loop
+	ld a, [hl]
+	cp -1
+	jr z, .notfound
+	cp c
+	jr z, .found
+	inc b
+	add hl, de
+	jr .loop
+
+.notfound
+	and a
+	ret
+
+.found
+	scf
+	ret