From 97f98500c1d40eba76210961e90ea5d354bcbc18 Mon Sep 17 00:00:00 2001 From: hhtian Date: Mon, 1 Nov 2010 06:30:58 +0000 Subject: Add CryptoPkg (from UDK2010.UP3) git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10987 6f19259b-4bc3-4df7-8a09-765794883524 --- .../Library/BaseCryptLib/SysCall/Ia32/Alloca.S | 59 ++++++++++++++ .../BaseCryptLib/SysCall/Ia32/MathDivU64x64.S | 83 +++++++++++++++++++ .../BaseCryptLib/SysCall/Ia32/MathDivU64x64.c | 88 ++++++++++++++++++++ .../BaseCryptLib/SysCall/Ia32/MathLShiftS64.S | 62 +++++++++++++++ .../BaseCryptLib/SysCall/Ia32/MathLShiftS64.c | 54 +++++++++++++ .../BaseCryptLib/SysCall/Ia32/MathMultS64x64.S | 77 ++++++++++++++++++ .../BaseCryptLib/SysCall/Ia32/MathMultS64x64.c | 79 ++++++++++++++++++ .../BaseCryptLib/SysCall/Ia32/MathRShiftU64.S | 66 +++++++++++++++ .../BaseCryptLib/SysCall/Ia32/MathRShiftU64.c | 57 +++++++++++++ .../BaseCryptLib/SysCall/Ia32/MathReminderU64x64.S | 89 +++++++++++++++++++++ .../BaseCryptLib/SysCall/Ia32/MathReminderU64x64.c | 93 ++++++++++++++++++++++ 11 files changed, 807 insertions(+) create mode 100644 CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/Alloca.S create mode 100644 CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathDivU64x64.S create mode 100644 CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathDivU64x64.c create mode 100644 CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathLShiftS64.S create mode 100644 CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathLShiftS64.c create mode 100644 CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathMultS64x64.S create mode 100644 CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathMultS64x64.c create mode 100644 CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathRShiftU64.S create mode 100644 CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathRShiftU64.c create mode 100644 CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathReminderU64x64.S create mode 100644 CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathReminderU64x64.c (limited to 'CryptoPkg/Library/BaseCryptLib/SysCall/Ia32') diff --git a/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/Alloca.S b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/Alloca.S new file mode 100644 index 0000000000..8496833ac8 --- /dev/null +++ b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/Alloca.S @@ -0,0 +1,59 @@ +#------------------------------------------------------------------------------ +# +# Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.
+# This program and the accompanying materials +# are licensed and made available under the terms and conditions of the BSD License +# which accompanies this distribution. The full text of the license may be found at +# http://opensource.org/licenses/bsd-license.php. +# +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +# +# Module Name: +# +# Alloca.S +# +# Abstract: +# +# Implementation for allocation of automatically reclaimed memory, which is +# used to allocate space off the runtime stack. +# (NOTE: There is a assumption in this code that the page size equal to 4K) +# +#------------------------------------------------------------------------------ + + + .686: + .code: + +ASM_GLOBAL ASM_PFX(_alloca) + +#------------------------------------------------------------------------------ +# +# void __cdecl _alloca (unsigned size) +# +#------------------------------------------------------------------------------ +ASM_PFX(_alloca): + + pushl %ecx + cmpl $0x1000, %eax + leal 8(%esp), %ecx + jb LastPage + +ProbePages: + subl $0x1000, %ecx + subl $0x1000, %eax + testl %eax, 0(%ecx) + cmpl $0x1000, %eax + jae ProbePages + +LastPage: + subl %eax, %ecx + movl %esp, %eax + testl %eax, 0(%ecx) + + movl %ecx, %esp + movl 0(%eax), %ecx + movl 4(%eax), %eax + pushl %eax + + ret diff --git a/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathDivU64x64.S b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathDivU64x64.S new file mode 100644 index 0000000000..f46d5b84f4 --- /dev/null +++ b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathDivU64x64.S @@ -0,0 +1,83 @@ +#------------------------------------------------------------------------------ +# +# Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.
+# This program and the accompanying materials +# are licensed and made available under the terms and conditions of the BSD License +# which accompanies this distribution. The full text of the license may be found at +# http://opensource.org/licenses/bsd-license.php. +# +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +# +# Module Name: +# +# MathDivU64x64.S +# +# Abstract: +# +# 64-bit Math Worker Function. +# Divides a 64-bit unsigned value with a 64-bit unsigned value and returns +# a 64-bit unsigned result. +# +#------------------------------------------------------------------------------ + + .686: + .code: + +ASM_GLOBAL ASM_PFX(__udivdi3), ASM_PFX(DivU64x64Remainder) + +#------------------------------------------------------------------------------ +# +# void __cdecl __udivdi3 (void) +# +#------------------------------------------------------------------------------ +ASM_PFX(__udivdi3): + # Original local stack when calling __udivdi3 + # ----------------- + # | | + # |---------------| + # | | + # |-- Divisor --| + # | | + # |---------------| + # | | + # |-- Dividend --| + # | | + # |---------------| + # | ReturnAddr** | + # ESP---->|---------------| + # + + # + # Set up the local stack for NULL Reminder pointer + # + xorl %eax, %eax + push %eax + + # + # Set up the local stack for Divisor parameter + # + movl 20(%esp), %eax + push %eax + movl 20(%esp), %eax + push %eax + + # + # Set up the local stack for Dividend parameter + # + movl 20(%esp), %eax + push %eax + movl 20(%esp), %eax + push %eax + + # + # Call native DivU64x64Remainder of BaseLib + # + jmp ASM_PFX(DivU64x64Remainder) + + # + # Adjust stack + # + addl $20, %esp + + ret $16 diff --git a/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathDivU64x64.c b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathDivU64x64.c new file mode 100644 index 0000000000..4011653ae5 --- /dev/null +++ b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathDivU64x64.c @@ -0,0 +1,88 @@ +/** @file + 64-bit Math Worker Function. + The 32-bit versions of C compiler generate calls to library routines + to handle 64-bit math. These functions use non-standard calling conventions. + +Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.
+This program and the accompanying materials +are licensed and made available under the terms and conditions of the BSD License +which accompanies this distribution. The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#include + + +/* + * Divides a 64-bit unsigned value with a 64-bit unsigned value and returns + * a 64-bit unsigned result. + */ +__declspec(naked) void __cdecl _aulldiv (void) +{ + // + // Wrapper Implementation over EDKII DivU64x64Reminder() routine + // UINT64 + // EFIAPI + // DivU64x64Remainder ( + // IN UINT64 Dividend, + // IN UINT64 Divisor, + // OUT UINT64 *Remainder OPTIONAL + // ) + // + _asm { + + ; Original local stack when calling _aulldiv + ; ----------------- + ; | | + ; |---------------| + ; | | + ; |-- Divisor --| + ; | | + ; |---------------| + ; | | + ; |-- Dividend --| + ; | | + ; |---------------| + ; | ReturnAddr** | + ; ESP---->|---------------| + ; + + ; + ; Set up the local stack for NULL Reminder pointer + ; + xor eax, eax + push eax + + ; + ; Set up the local stack for Divisor parameter + ; + mov eax, [esp + 20] + push eax + mov eax, [esp + 20] + push eax + + ; + ; Set up the local stack for Dividend parameter + ; + mov eax, [esp + 20] + push eax + mov eax, [esp + 20] + push eax + + ; + ; Call native DivU64x64Remainder of BaseLib + ; + call DivU64x64Remainder + + ; + ; Adjust stack + ; + add esp, 20 + + ret 16 + } +} diff --git a/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathLShiftS64.S b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathLShiftS64.S new file mode 100644 index 0000000000..e89f553a08 --- /dev/null +++ b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathLShiftS64.S @@ -0,0 +1,62 @@ +#------------------------------------------------------------------------------ +# +# Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.
+# This program and the accompanying materials +# are licensed and made available under the terms and conditions of the BSD License +# which accompanies this distribution. The full text of the license may be found at +# http://opensource.org/licenses/bsd-license.php. +# +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +# +# Module Name: +# +# MathLShiftS64.S +# +# Abstract: +# +# 64-bit Math Worker Function. +# Shifts a 64-bit signed value left by a certain number of bits. +# +#------------------------------------------------------------------------------ + + .686: + .code: + +ASM_GLOBAL ASM_PFX(__ashldi3) + +#------------------------------------------------------------------------------ +# +# void __cdecl __ashldi3 (void) +# +#------------------------------------------------------------------------------ +ASM_PFX(__ashldi3): + # + # Handle shifting of 64 or more bits (return 0) + # + cmpb $64, %cl + jae ReturnZero + + # + # Handle shifting of between 0 and 31 bits + # + cmpb $32, %cl + jae More32 + shld %cl, %eax, %edx + shl %cl, %eax + ret + + # + # Handle shifting of between 32 and 63 bits + # +More32: + movl %eax, %edx + xor %eax, %eax + and $31, %cl + shl %cl, %edx + ret + +ReturnZero: + xor %eax, %eax + xor %edx, %edx + ret diff --git a/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathLShiftS64.c b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathLShiftS64.c new file mode 100644 index 0000000000..2ea628a007 --- /dev/null +++ b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathLShiftS64.c @@ -0,0 +1,54 @@ +/** @file + 64-bit Math Worker Function. + The 32-bit versions of C compiler generate calls to library routines + to handle 64-bit math. These functions use non-standard calling conventions. + +Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.
+This program and the accompanying materials +are licensed and made available under the terms and conditions of the BSD License +which accompanies this distribution. The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + + +/* + * Shifts a 64-bit signed value left by a particular number of bits. + */ +__declspec(naked) void __cdecl _allshl (void) +{ + _asm { + ; + ; Handle shifting of 64 or more bits (return 0) + ; + cmp cl, 64 + jae short ReturnZero + + ; + ; Handle shifting of between 0 and 31 bits + ; + cmp cl, 32 + jae short More32 + shld edx, eax, cl + shl eax, cl + ret + + ; + ; Handle shifting of between 32 and 63 bits + ; +More32: + mov edx, eax + xor eax, eax + and cl, 31 + shl edx, cl + ret + +ReturnZero: + xor eax,eax + xor edx,edx + ret + } +} diff --git a/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathMultS64x64.S b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathMultS64x64.S new file mode 100644 index 0000000000..8a5f330e45 --- /dev/null +++ b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathMultS64x64.S @@ -0,0 +1,77 @@ +#------------------------------------------------------------------------------ +# +# Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.
+# This program and the accompanying materials +# are licensed and made available under the terms and conditions of the BSD License +# which accompanies this distribution. The full text of the license may be found at +# http://opensource.org/licenses/bsd-license.php. +# +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +# +# Module Name: +# +# MathMultS64x64.S +# +# Abstract: +# +# 64-bit Math Worker Function. +# Multiplies a 64-bit signed or unsigned value by a 64-bit signed or unsigned value +# and returns a 64-bit result +# +#------------------------------------------------------------------------------ + + .686: + .code: + +ASM_GLOBAL ASM_PFX(_mulll), ASM_PFX(MultS64x64) + +#------------------------------------------------------------------------------ +# +# void __cdecl __mulll (void) +# +#------------------------------------------------------------------------------ +ASM_PFX(__mulll): + # Original local stack when calling __mulll + # ----------------- + # | | + # |---------------| + # | | + # |--Multiplier --| + # | | + # |---------------| + # | | + # |--Multiplicand-| + # | | + # |---------------| + # | ReturnAddr** | + # ESP---->|---------------| + # + + # + # Set up the local stack for Multiplicand parameter + # + movl 16(%esp), %eax + push %eax + movl 16(%esp), %eax + push %eax + + # + # Set up the local stack for Multiplier parameter + # + movl 16(%esp), %eax + push %eax + movl 16(%esp), %eax + push %eax + + # + # Call native MulS64x64 of BaseLib + # + jmp ASM_PFX(MultS64x64) + + # + # Adjust stack + # + add $16, %esp + + ret $16 diff --git a/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathMultS64x64.c b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathMultS64x64.c new file mode 100644 index 0000000000..17a20bf629 --- /dev/null +++ b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathMultS64x64.c @@ -0,0 +1,79 @@ +/** @file + 64-bit Math Worker Function. + The 32-bit versions of C compiler generate calls to library routines + to handle 64-bit math. These functions use non-standard calling conventions. + +Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.
+This program and the accompanying materials +are licensed and made available under the terms and conditions of the BSD License +which accompanies this distribution. The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#include + +/* + * Multiplies a 64-bit signed or unsigned value by a 64-bit signed or unsigned value + * and returns a 64-bit result. + */ +__declspec(naked) void __cdecl _allmul (void) +{ + // + // Wrapper Implementation over EDKII MultS64x64() routine + // INT64 + // EFIAPI + // MultS64x64 ( + // IN INT64 Multiplicand, + // IN INT64 Multiplier + // ) + // + _asm { + ; Original local stack when calling _allmul + ; ----------------- + ; | | + ; |---------------| + ; | | + ; |--Multiplier --| + ; | | + ; |---------------| + ; | | + ; |--Multiplicand-| + ; | | + ; |---------------| + ; | ReturnAddr** | + ; ESP---->|---------------| + ; + + ; + ; Set up the local stack for Multiplicand parameter + ; + mov eax, [esp + 16] + push eax + mov eax, [esp + 16] + push eax + + ; + ; Set up the local stack for Multiplier parameter + ; + mov eax, [esp + 16] + push eax + mov eax, [esp + 16] + push eax + + ; + ; Call native MulS64x64 of BaseLib + ; + call MultS64x64 + + ; + ; Adjust stack + ; + add esp, 16 + + ret 16 + } +} diff --git a/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathRShiftU64.S b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathRShiftU64.S new file mode 100644 index 0000000000..3a8a132564 --- /dev/null +++ b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathRShiftU64.S @@ -0,0 +1,66 @@ +#------------------------------------------------------------------------------ +# +# Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.
+# This program and the accompanying materials +# are licensed and made available under the terms and conditions of the BSD License +# which accompanies this distribution. The full text of the license may be found at +# http://opensource.org/licenses/bsd-license.php. +# +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +# +# Module Name: +# +# MathRShiftU64.S +# +# Abstract: +# +# 64-bit Math Worker Function. +# Shifts a 64-bit unsigned value right by a certain number of bits. +# +#------------------------------------------------------------------------------ + + + .686: + .code: + +ASM_GLOBAL ASM_PFX(__ashrdi3) + +#------------------------------------------------------------------------------ +# +# void __cdecl __ashrdi3 (void) +# +#------------------------------------------------------------------------------ +ASM_PFX(__ashrdi3): + # + # Checking: Only handle 64bit shifting or more + # + cmpb $64, %cl + jae _Exit + + # + # Handle shifting between 0 and 31 bits + # + cmpb $32, %cl + jae More32 + shrd %cl, %edx, %eax + shr %cl, %edx + ret + + # + # Handle shifting of 32-63 bits + # +More32: + movl %edx, %eax + xor %edx, %edx + and $32, %cl + shr %cl, %eax + ret + + # + # Invalid number (less then 32bits), return 0 + # +_Exit: + xor %eax, %eax + xor %edx, %edx + ret diff --git a/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathRShiftU64.c b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathRShiftU64.c new file mode 100644 index 0000000000..b7224d6455 --- /dev/null +++ b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathRShiftU64.c @@ -0,0 +1,57 @@ +/** @file + 64-bit Math Worker Function. + The 32-bit versions of C compiler generate calls to library routines + to handle 64-bit math. These functions use non-standard calling conventions. + +Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.
+This program and the accompanying materials +are licensed and made available under the terms and conditions of the BSD License +which accompanies this distribution. The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + + +/* + * Shifts a 64-bit unsigned value right by a certain number of bits. + */ +__declspec(naked) void __cdecl _aullshr (void) +{ + _asm { + ; + ; Checking: Only handle 64bit shifting or more + ; + cmp cl, 64 + jae _Exit + + ; + ; Handle shifting between 0 and 31 bits + ; + cmp cl, 32 + jae More32 + shrd eax, edx, cl + shr edx, cl + ret + + ; + ; Handle shifting of 32-63 bits + ; +More32: + mov eax, edx + xor edx, edx + and cl, 31 + shr eax, cl + ret + + ; + ; Invalid number (less then 32bits), return 0 + ; +_Exit: + xor eax, eax + xor edx, edx + ret + } +} diff --git a/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathReminderU64x64.S b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathReminderU64x64.S new file mode 100644 index 0000000000..7c1f971644 --- /dev/null +++ b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathReminderU64x64.S @@ -0,0 +1,89 @@ +#------------------------------------------------------------------------------ +# +# Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.
+# This program and the accompanying materials +# are licensed and made available under the terms and conditions of the BSD License +# which accompanies this distribution. The full text of the license may be found at +# http://opensource.org/licenses/bsd-license.php. +# +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +# +# Module Name: +# +# MathReminderU64x64.S +# +# Abstract: +# +# 64-bit Math Worker Function. +# Divides a 64-bit unsigned value by another 64-bit unsigned value and returns +# the 64-bit unsigned remainder +# +#------------------------------------------------------------------------------ + + .686: + .code: + +ASM_GLOBAL ASM_PFX(__umoddi3), ASM_PFX(DivU64x64Remainder) + +#------------------------------------------------------------------------------ +# +# void __cdecl __umoddi3 (void) +# +#------------------------------------------------------------------------------ +ASM_PFX(__umoddi3): + # Original local stack when calling __umoddi3 + # ----------------- + # | | + # |---------------| + # | | + # |-- Divisor --| + # | | + # |---------------| + # | | + # |-- Dividend --| + # | | + # |---------------| + # | ReturnAddr** | + # ESP---->|---------------| + # + + # + # Set up the local stack for Reminder pointer + # + sub $8, %esp + push %esp + + # + # Set up the local stack for Divisor parameter + # + movl 28(%esp), %eax + push %eax + movl 28(%esp), %eax + push %eax + + # + # Set up the local stack for Dividend parameter + # + movl 28(%esp), %eax + push %eax + movl 28(%esp), %eax + push %eax + + # + # Call native DivU64x64Remainder of BaseLib + # + jmp ASM_PFX(DivU64x64Remainder) + + # + # Put the Reminder in EDX:EAX as return value + # + movl 20(%esp), %eax + movl 24(%esp), %edx + + # + # Adjust stack + # + add $28, %esp + + ret $16 diff --git a/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathReminderU64x64.c b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathReminderU64x64.c new file mode 100644 index 0000000000..be70770ebb --- /dev/null +++ b/CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathReminderU64x64.c @@ -0,0 +1,93 @@ +/** @file + 64-bit Math Worker Function. + The 32-bit versions of C compiler generate calls to library routines + to handle 64-bit math. These functions use non-standard calling conventions. + +Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.
+This program and the accompanying materials +are licensed and made available under the terms and conditions of the BSD License +which accompanies this distribution. The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#include + + +/* + * Divides a 64-bit unsigned value by another 64-bit unsigned value and returns + * the 64-bit unsigned remainder. + */ +__declspec(naked) void __cdecl _aullrem(void) +{ + // + // Wrapper Implementation over EDKII DivU64x64Remainder() routine + // UINT64 + // EFIAPI + // DivU64x64Remainder ( + // IN UINT64 Dividend, + // IN UINT64 Divisor, + // OUT UINT64 *Remainder OPTIONAL + // ) + // + _asm { + ; Original local stack when calling _aullrem + ; ----------------- + ; | | + ; |---------------| + ; | | + ; |-- Divisor --| + ; | | + ; |---------------| + ; | | + ; |-- Dividend --| + ; | | + ; |---------------| + ; | ReturnAddr** | + ; ESP---->|---------------| + ; + + ; + ; Set up the local stack for Reminder pointer + ; + sub esp, 8 + push esp + + ; + ; Set up the local stack for Divisor parameter + ; + mov eax, [esp + 28] + push eax + mov eax, [esp + 28] + push eax + + ; + ; Set up the local stack for Dividend parameter + ; + mov eax, [esp + 28] + push eax + mov eax, [esp + 28] + push eax + + ; + ; Call native DivU64x64Remainder of BaseLib + ; + call DivU64x64Remainder + + ; + ; Put the Reminder in EDX:EAX as return value + ; + mov eax, [esp + 20] + mov edx, [esp + 24] + + ; + ; Adjust stack + ; + add esp, 28 + + ret 16 + } +} -- cgit v1.2.3