From fcedfddf00b3f994e4f4e40332ac7fc192c63244 Mon Sep 17 00:00:00 2001
From: polwex <polwex@sortug.com>
Date: Sun, 5 Oct 2025 21:56:51 +0700
Subject: claude is gud

---
 vere/ext/gmp/gen/x86_64-macos/mpn/invert_limb.s | 124 ++++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 vere/ext/gmp/gen/x86_64-macos/mpn/invert_limb.s

(limited to 'vere/ext/gmp/gen/x86_64-macos/mpn/invert_limb.s')

diff --git a/vere/ext/gmp/gen/x86_64-macos/mpn/invert_limb.s b/vere/ext/gmp/gen/x86_64-macos/mpn/invert_limb.s
new file mode 100644
index 0000000..a5f251b
--- /dev/null
+++ b/vere/ext/gmp/gen/x86_64-macos/mpn/invert_limb.s
@@ -0,0 +1,124 @@
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+.private_extern __gmpn_invert_limb_table
+
+
+	.text
+	.align	4, 0x90
+	.globl	___gmpn_invert_limb
+	
+	
+___gmpn_invert_limb:
+		
+	
+	mov	%rdi, %rax		
+	shr	$55, %rax		
+
+	lea	__gmpn_invert_limb_table(%rip), %r8
+	add	$-512, %r8
+
+	movzwl	(%r8,%rax,2), %ecx	
+
+	
+	mov	%rdi, %rsi		
+	mov	%ecx, %eax	
+	imul	%ecx, %ecx	
+	shr	$24, %rsi		
+	inc	%rsi			
+	imul	%rsi, %rcx		
+	shr	$40, %rcx		
+	sal	$11, %eax		
+	dec	%eax
+	sub	%ecx, %eax	
+
+	
+	mov	$0x1000000000000000, %rcx
+	imul	%rax, %rsi		
+	sub	%rsi, %rcx
+	imul	%rax, %rcx
+	sal	$13, %rax
+	shr	$47, %rcx
+	add	%rax, %rcx		
+
+	
+	mov	%rdi, %rsi		
+	shr	%rsi			
+	sbb	%rax, %rax		
+	sub	%rax, %rsi		
+	imul	%rcx, %rsi		
+	and	%rcx, %rax		
+	shr	%rax			
+	sub	%rsi, %rax		
+	mul	%rcx
+	sal	$31, %rcx
+	shr	%rdx
+	add	%rdx, %rcx		
+
+	mov	%rdi, %rax
+	mul	%rcx
+	add	%rdi, %rax
+	mov	%rcx, %rax
+	adc	%rdi, %rdx
+	sub	%rdx, %rax
+
+	
+	ret
+	
+
-- 
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