diff options
Diffstat (limited to 'MdePkg/Library/BaseMemoryLib/SetMem.c')
| -rw-r--r-- | MdePkg/Library/BaseMemoryLib/SetMem.c | 35 |
1 files changed, 17 insertions, 18 deletions
diff --git a/MdePkg/Library/BaseMemoryLib/SetMem.c b/MdePkg/Library/BaseMemoryLib/SetMem.c index 258df35ae47f..f8f5e0da285e 100644 --- a/MdePkg/Library/BaseMemoryLib/SetMem.c +++ b/MdePkg/Library/BaseMemoryLib/SetMem.c @@ -12,9 +12,6 @@ **/ - - - #include "MemLibInternals.h" /** @@ -30,9 +27,9 @@ VOID * EFIAPI InternalMemSetMem ( - OUT VOID *Buffer, - IN UINTN Length, - IN UINT8 Value + OUT VOID *Buffer, + IN UINTN Length, + IN UINT8 Value ) { // @@ -40,42 +37,44 @@ InternalMemSetMem ( // volatile to prevent the optimizer from replacing this function with // the intrinsic memset() // - volatile UINT8 *Pointer8; - volatile UINT32 *Pointer32; - volatile UINT64 *Pointer64; - UINT32 Value32; - UINT64 Value64; + volatile UINT8 *Pointer8; + volatile UINT32 *Pointer32; + volatile UINT64 *Pointer64; + UINT32 Value32; + UINT64 Value64; if ((((UINTN)Buffer & 0x7) == 0) && (Length >= 8)) { // Generate the 64bit value Value32 = (Value << 24) | (Value << 16) | (Value << 8) | Value; Value64 = LShiftU64 (Value32, 32) | Value32; - Pointer64 = (UINT64*)Buffer; + Pointer64 = (UINT64 *)Buffer; while (Length >= 8) { *(Pointer64++) = Value64; - Length -= 8; + Length -= 8; } // Finish with bytes if needed - Pointer8 = (UINT8*)Pointer64; + Pointer8 = (UINT8 *)Pointer64; } else if ((((UINTN)Buffer & 0x3) == 0) && (Length >= 4)) { // Generate the 32bit value Value32 = (Value << 24) | (Value << 16) | (Value << 8) | Value; - Pointer32 = (UINT32*)Buffer; + Pointer32 = (UINT32 *)Buffer; while (Length >= 4) { *(Pointer32++) = Value32; - Length -= 4; + Length -= 4; } // Finish with bytes if needed - Pointer8 = (UINT8*)Pointer32; + Pointer8 = (UINT8 *)Pointer32; } else { - Pointer8 = (UINT8*)Buffer; + Pointer8 = (UINT8 *)Buffer; } + while (Length-- > 0) { *(Pointer8++) = Value; } + return Buffer; } |