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https://github.com/CloverHackyColor/CloverBootloader.git
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90 lines
2.4 KiB
ArmAsm
90 lines
2.4 KiB
ArmAsm
#------------------------------------------------------------------------------
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#
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# Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
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# This program and the accompanying materials
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# are licensed and made available under the terms and conditions of the BSD License
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# which accompanies this distribution. The full text of the license may be found at
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# http://opensource.org/licenses/bsd-license.php.
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#
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# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#
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# Module Name:
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#
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# MathReminderU64x64.S
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#
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# Abstract:
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#
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# 64-bit Math Worker Function.
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# Divides a 64-bit unsigned value by another 64-bit unsigned value and returns
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# the 64-bit unsigned remainder
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#
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#------------------------------------------------------------------------------
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.686:
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.code:
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ASM_GLOBAL ASM_PFX(__umoddi3), ASM_PFX(DivU64x64Remainder)
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#------------------------------------------------------------------------------
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#
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# void __cdecl __umoddi3 (void)
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#
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#------------------------------------------------------------------------------
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ASM_PFX(__umoddi3):
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# Original local stack when calling __umoddi3
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# -----------------
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# | |
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# |---------------|
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# | |
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# |-- Divisor --|
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# | |
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# |---------------|
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# | |
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# |-- Dividend --|
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# | |
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# |---------------|
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# | ReturnAddr** |
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# ESP---->|---------------|
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#
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#
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# Set up the local stack for Reminder pointer
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#
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sub $8, %esp
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push %esp
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#
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# Set up the local stack for Divisor parameter
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#
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movl 28(%esp), %eax
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push %eax
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movl 28(%esp), %eax
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push %eax
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#
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# Set up the local stack for Dividend parameter
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#
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movl 28(%esp), %eax
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push %eax
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movl 28(%esp), %eax
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push %eax
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#
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# Call native DivU64x64Remainder of BaseLib
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#
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jmp ASM_PFX(DivU64x64Remainder)
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#
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# Put the Reminder in EDX:EAX as return value
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#
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movl 20(%esp), %eax
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movl 24(%esp), %edx
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#
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# Adjust stack
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#
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add $28, %esp
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ret $16
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