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author | raywu <raywu0301@gmail.com> | 2018-06-15 00:00:50 +0800 |
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committer | raywu <raywu0301@gmail.com> | 2018-06-15 00:00:50 +0800 |
commit | b7c51c9cf4864df6aabb99a1ae843becd577237c (patch) | |
tree | eebe9b0d0ca03062955223097e57da84dd618b9a /EDK/Foundation/Library/EfiCommonLib/Ia32/Power10U64.asm | |
download | zprj-master.tar.xz |
Diffstat (limited to 'EDK/Foundation/Library/EfiCommonLib/Ia32/Power10U64.asm')
-rw-r--r-- | EDK/Foundation/Library/EfiCommonLib/Ia32/Power10U64.asm | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/EDK/Foundation/Library/EfiCommonLib/Ia32/Power10U64.asm b/EDK/Foundation/Library/EfiCommonLib/Ia32/Power10U64.asm new file mode 100644 index 0000000..0346e03 --- /dev/null +++ b/EDK/Foundation/Library/EfiCommonLib/Ia32/Power10U64.asm @@ -0,0 +1,72 @@ + TITLE Power10U64.asm: calculates Operand * 10 ^ Power + +;------------------------------------------------------------------------------ +; +; Copyright (c) 2004, 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: +; +; Power10U64.asm +; +; Abstract: +; +; Calculates Operand * 10 ^ Power +; +;------------------------------------------------------------------------------ + + .686P + .XMM + .MODEL SMALL + .CODE + +Power10U64 PROTO C Operand: QWORD, Power: DWORD +MultU64x32 PROTO C Multiplicand: QWORD, Multiplier: DWORD + +Power10U64 PROC C Operand: QWORD, Power: DWORD + +;------------------------------------------------------------------------------ +; UINT64 +; Power10U64 ( +; IN UINT64 Operand, +; IN UINTN Power +; ) +; +; Routine Description: +; +; Raise 10 to the power of Power, and multiply the result with Operand +; +; Arguments: +; +; Operand - multiplicand +; Power - power +; +; Returns: +; +; Operand * 10 ^ Power +;------------------------------------------------------------------------------ + + push ecx + + mov ecx, Power + jcxz _Power10U64_Done + +_Power10U64_Wend: + invoke MultU64x32, Operand, 10 + mov dword ptr Operand[0], eax + mov dword ptr Operand[4], edx + loop _Power10U64_Wend + +_Power10U64_Done: + pop ecx + ret + +Power10U64 ENDP + +END |