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authorpolwex <polwex@sortug.com>2025-10-05 21:56:51 +0700
committerpolwex <polwex@sortug.com>2025-10-05 21:56:51 +0700
commitfcedfddf00b3f994e4f4e40332ac7fc192c63244 (patch)
tree51d38e62c7bdfcc5f9a5e9435fe820c93cfc9a3d /vere/ext/gmp/gen/aarch64-macos/mpn/sublsh2_n.s
claude is gud
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+ .text
+ .align 3
+ .globl ___gmpn_sublsh2_n
+
+___gmpn_sublsh2_n:
+ lsr x6, x3, #2
+ tbz x3, #0, Lbx0
+
+Lbx1: ldr x5, [x1]
+ tbnz x3, #1, Lb11
+
+Lb01: ldr x11, [x2]
+ cbz x6, L1
+ ldp x8, x9, [x2,#8]
+ lsl x13, x11, #2
+ subs x15, x5, x13
+ str x15, [x0],#8
+ sub x1, x1, #24
+ sub x2, x2, #8
+ b Lmid
+
+L1: lsl x13, x11, #2
+ subs x15, x5, x13
+ str x15, [x0]
+ lsr x0, x11, 62
+ cinc x0, x0, cc
+ ret
+
+Lb11: ldr x9, [x2]
+ ldp x10, x11, [x2,#8]!
+ lsl x13, x9, #2
+ subs x17, x5, x13
+ str x17, [x0],#8
+ sub x1, x1, #8
+ cbz x6, Lend
+ b Ltop
+
+Lbx0: tbnz x3, #1, Lb10
+
+Lb00: subs x11, xzr, xzr
+ ldp x8, x9, [x2],#-16
+ sub x1, x1, #32
+ b Lmid
+
+Lb10: subs x9, xzr, xzr
+ ldp x10, x11, [x2]
+ sub x1, x1, #16
+ cbz x6, Lend
+
+ .align 4
+Ltop: ldp x4, x5, [x1,#16]
+ extr x12, x10, x9, #62
+ ldp x8, x9, [x2,#16]
+ extr x13, x11, x10, #62
+ sbcs x14, x4, x12
+ sbcs x15, x5, x13
+ stp x14, x15, [x0],#16
+Lmid: ldp x4, x5, [x1,#32]!
+ extr x12, x8, x11, #62
+ ldp x10, x11, [x2,#32]!
+ extr x13, x9, x8, #62
+ sbcs x16, x4, x12
+ sbcs x17, x5, x13
+ stp x16, x17, [x0],#16
+ sub x6, x6, #1
+ cbnz x6, Ltop
+
+Lend: ldp x4, x5, [x1,#16]
+ extr x12, x10, x9, #62
+ extr x13, x11, x10, #62
+ sbcs x14, x4, x12
+ sbcs x15, x5, x13
+ stp x14, x15, [x0]
+ lsr x0, x11, 62
+ cinc x0, x0, cc
+ ret
+
+