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MdePkg BaseLib: Convert X64/RdRand.asm to NASM 

The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert
X64/RdRand.asm to X64/RdRand.nasm

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
This commit is contained in:
Jordan Justen 2016-05-30 18:52:00 -07:00 committed by Liming Gao
parent c1d8229575
commit 050a8bf198
2 changed files with 86 additions and 0 deletions
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3
MdePkg/Library/BaseLib/BaseLib.inf
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@ -447,6 +447,7 @@
X64/CpuBreakpoint.c | MSFT
X64/WriteMsr64.c | MSFT
X64/ReadMsr64.c | MSFT
X64/RdRand.nasm| MSFT
X64/RdRand.asm | MSFT
X64/CpuPause.asm | MSFT
X64/EnableDisableInterrupts.asm | MSFT
@ -520,6 +521,7 @@
X64/CpuBreakpoint.asm | INTEL
X64/WriteMsr64.asm | INTEL
X64/ReadMsr64.asm | INTEL
X64/RdRand.nasm| INTEL
X64/RdRand.asm | INTEL
X64/CpuPause.asm | INTEL
X64/EnableDisableInterrupts.asm | INTEL
@ -626,6 +628,7 @@
X64/EnableCache.S | GCC
X64/DisableCache.nasm| GCC
X64/DisableCache.S | GCC
X64/RdRand.nasm| GCC
X64/RdRand.S | GCC
ChkStkGcc.c | GCC

83
MdePkg/Library/BaseLib/X64/RdRand.nasm Normal file
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@ -0,0 +1,83 @@
;------------------------------------------------------------------------------
;
; Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
; 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:
;
; RdRand.nasm
;
; Abstract:
;
; Generates random number through CPU RdRand instruction under 64-bit platform.
;
; Notes:
;
;------------------------------------------------------------------------------
DEFAULT REL
SECTION .text
;------------------------------------------------------------------------------
; Generates a 16 bit random number through RDRAND instruction.
; Return TRUE if Rand generated successfully, or FALSE if not.
;
; BOOLEAN EFIAPI AsmRdRand16 (UINT16 *Rand);
;------------------------------------------------------------------------------
global ASM_PFX(AsmRdRand16)
ASM_PFX(AsmRdRand16):
; rdrand ax ; generate a 16 bit RN into eax,
; CF=1 if RN generated ok, otherwise CF=0
db 0xf, 0xc7, 0xf0 ; rdrand r16: "0f c7 /6 ModRM:r/m(w)"
jc rn16_ok ; jmp if CF=1
xor rax, rax ; reg=0 if CF=0
ret ; return with failure status
rn16_ok:
mov [rcx], ax
mov rax, 1
ret
;------------------------------------------------------------------------------
; Generates a 32 bit random number through RDRAND instruction.
; Return TRUE if Rand generated successfully, or FALSE if not.
;
; BOOLEAN EFIAPI AsmRdRand32 (UINT32 *Rand);
;------------------------------------------------------------------------------
global ASM_PFX(AsmRdRand32)
ASM_PFX(AsmRdRand32):
; rdrand eax ; generate a 32 bit RN into eax,
; CF=1 if RN generated ok, otherwise CF=0
db 0xf, 0xc7, 0xf0 ; rdrand r32: "0f c7 /6 ModRM:r/m(w)"
jc rn32_ok ; jmp if CF=1
xor rax, rax ; reg=0 if CF=0
ret ; return with failure status
rn32_ok:
mov [rcx], eax
mov rax, 1
ret
;------------------------------------------------------------------------------
; Generates a 64 bit random number through one RDRAND instruction.
; Return TRUE if Rand generated successfully, or FALSE if not.
;
; BOOLEAN EFIAPI AsmRdRand64 (UINT64 *Random);
;------------------------------------------------------------------------------
global ASM_PFX(AsmRdRand64)
ASM_PFX(AsmRdRand64):
; rdrand rax ; generate a 64 bit RN into rax,
; CF=1 if RN generated ok, otherwise CF=0
db 0x48, 0xf, 0xc7, 0xf0 ; rdrand r64: "REX.W + 0f c7 /6 ModRM:r/m(w)"
jc rn64_ok ; jmp if CF=1
xor rax, rax ; reg=0 if CF=0
ret ; return with failure status
rn64_ok:
mov [rcx], rax
mov rax, 1
ret