1 files changed, 50 insertions, 0 deletions
diff --git a/roms/edk2/ArmPkg/Library/CompilerIntrinsicsLib/Arm/muldi3.S b/roms/edk2/ArmPkg/Library/CompilerIntrinsicsLib/Arm/muldi3.S
new file mode 100644
index 000000000..adee64782
--- /dev/null
+++ b/roms/edk2/ArmPkg/Library/CompilerIntrinsicsLib/Arm/muldi3.S
@@ -0,0 +1,50 @@
+#------------------------------------------------------------------------------
+#
+# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#------------------------------------------------------------------------------
+
+#include <AsmMacroIoLib.h>
+
+ASM_FUNC(__muldi3)
+  stmfd  sp!, {r4, r5, r6, r7, lr}
+  add  r7, sp, #12
+  stmfd  sp!, {r8, r10, r11}
+  ldr  r11, L4
+  mov  r4, r0, lsr #16
+  and  r8, r0, r11
+  and  ip, r2, r11
+  mul  lr, ip, r8
+  mul  ip, r4, ip
+  sub  sp, sp, #8
+  add  r10, ip, lr, lsr #16
+  and  ip, r10, r11
+  and  lr, lr, r11
+  mov  r6, r2, lsr #16
+  str  r4, [sp, #4]
+  add  r4, lr, ip, asl #16
+  mul  ip, r8, r6
+  mov  r5, r10, lsr #16
+  add  r10, ip, r4, lsr #16
+  and  ip, r10, r11
+  and  lr, r4, r11
+  add  r4, lr, ip, asl #16
+  mul  r0, r3, r0
+  add  ip, r5, r10, lsr #16
+  ldr  r5, [sp, #4]
+  mla  r0, r2, r1, r0
+  mla  r5, r6, r5, ip
+  mov  r10, r4
+  add  r11, r0, r5
+  mov  r1, r11
+  mov  r0, r4
+  sub  sp, r7, #24
+  ldmfd  sp!, {r8, r10, r11}
+  ldmfd  sp!, {r4, r5, r6, r7, pc}
+  .p2align 2
+L5:
+  .align 2
+L4:
+  .long  65535