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diff --git a/vere/ext/gmp/gen/aarch64-macos/mpn/copyd.s b/vere/ext/gmp/gen/aarch64-macos/mpn/copyd.s
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+	.text
+	.align	3
+	.globl	___gmpn_copyd 
+	
+___gmpn_copyd:
+	add	x0, x0, x2, lsl #3
+	add	x1, x1, x2, lsl #3
+
+	cmp	x2, #3
+	b.le	Lbc
+
+
+	tbz	x0, #3, Lal2
+	ldr	x4, [x1,#-8]!
+	sub	x2, x2, #1
+	str	x4, [x0,#-8]!
+
+Lal2:	ldp	x4,x5, [x1,#-16]!
+	sub	x2, x2, #6
+	tbnz	x2, #63, Lend
+
+	.align	4
+Ltop:	ldp	x6,x7, [x1,#-16]
+	stp	x4,x5, [x0,#-16]
+	ldp	x4,x5, [x1,#-32]!
+	stp	x6,x7, [x0,#-32]!
+	sub	x2, x2, #4
+	tbz	x2, #63, Ltop
+
+Lend:	stp	x4,x5, [x0,#-16]!
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+
+
+Lbc:	tbz	x2, #1, Ltl1
+	ldp	x4,x5, [x1,#-16]!
+	stp	x4,x5, [x0,#-16]!
+Ltl1:	tbz	x2, #0, Ltl2
+	ldr	x4, [x1,#-8]
+	str	x4, [x0,#-8]
+Ltl2:	ret
+