1 files changed, 168 insertions, 0 deletions
diff --git a/vere/ext/gmp/gen/x86_64-windows/mpn/popcount.s b/vere/ext/gmp/gen/x86_64-windows/mpn/popcount.s
new file mode 100644
index 0000000..f15089c
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+++ b/vere/ext/gmp/gen/x86_64-windows/mpn/popcount.s
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+	.text
+	.align	32, 0x90
+	.globl	__gmpn_popcount
+	
+	.def	__gmpn_popcount
+	.scl	2
+	.type	32
+	.endef
+__gmpn_popcount:
+
+ 	push	%rdi
+	push	%rsi
+	mov	%rcx, %rdi
+	mov	%rdx, %rsi
+		
+ 	push	%rbx
+	mov	$0x5555555555555555, %r10
+	push	%rbp
+	mov	$0x3333333333333333, %r11
+ 	lea	(%rdi,%rsi,8), %rdi
+	mov	$0x0f0f0f0f0f0f0f0f, %rcx
+ 	neg	%rsi
+	mov	$0x0101010101010101, %rdx
+	xor	%eax, %eax
+	test	$1, %sil
+	jz	Ltop
+
+	mov	(%rdi,%rsi,8), %r8
+ 
+	mov	%r8, %r9
+	shr	%r8
+	and	%r10, %r8
+	sub	%r8, %r9
+
+	mov	%r9, %r8
+	shr	$2, %r9
+	and	%r11, %r8
+	and	%r11, %r9
+	add	%r8, %r9		
+
+	dec	%rsi
+	jmp	Lmid
+
+	.align	16, 0x90
+Ltop:	mov	(%rdi,%rsi,8), %r8
+	mov	8(%rdi,%rsi,8), %rbx
+  
+	mov	%r8, %r9
+	mov	%rbx, %rbp
+	shr	%r8
+	shr	%rbx
+	and	%r10, %r8
+	and	%r10, %rbx
+	sub	%r8, %r9
+	sub	%rbx, %rbp
+
+	mov	%r9, %r8
+	mov	%rbp, %rbx
+	shr	$2, %r9
+	shr	$2, %rbp
+	and	%r11, %r8
+	and	%r11, %r9
+	and	%r11, %rbx
+	and	%r11, %rbp
+	add	%r8, %r9		
+	add	%rbx, %rbp		
+
+	add	%rbp, %r9		
+Lmid:	mov	%r9, %r8
+	shr	$4, %r9
+	and	%rcx, %r8
+	and	%rcx, %r9
+	add	%r8, %r9		
+
+	imul	%rdx, %r9		
+	shr	$56, %r9
+
+	add	%r9, %rax		
+	add	$2, %rsi
+	jnc	Ltop
+
+Lend:
+ 	pop	%rbp
+	pop	%rbx
+	pop	%rsi
+	pop	%rdi
+	ret
+