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svn path=/trunk/; revision=5333
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Magnus Olsen 2003-07-30 18:55:27 +00:00
parent 98f9507c1e
commit 007c07efe6
7 changed files with 556 additions and 0 deletions
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49
reactos/lib/ntdll/nasm/rtl/i386_RtlCompareMemory.asm Normal file
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; * base on ntdll/rtl/mem.c v 1.13 2003/07/11 13:50:23
; *
; * COPYRIGHT: See COPYING in the top level directory
; * PROJECT: ReactOS kernel
; * FILE: i386_RtlCompareMemory.asm
; * PURPOSE: Memory functions
; * PROGRAMMER: Magnus Olsen (magnusolsen@greatlord.com)
; * UPDATE HISTORY:
; * Created 20/07-2003
; *
BITS 32
GLOBAL _RtlCompareMemory@12 ; [4] (no bug)
SECTION .text
; *
; * [4] ULONG STDCALL RtlCompareMemory(PVOID Source1, PVOID Source2, ULONG Length)
; *
_RtlCompareMemory@12:
xor eax,eax ; count = 0
mov ecx, dword [esp + 12 ] ; ecx = Length
cmp ecx,0 ; if (Length==0) goto .zero
je .zero
push edi ; register that does not to be save eax,ecx,edx to
push ebx ; the stack for protetion
mov edi, dword [esp + (4 + 8)] ; edi = Destination
mov edx, dword [esp + (8 + 8)] ; edx = Source
.loop_1byte:
mov bl,byte [edi + eax ] ; if (src[count]!=des[count]) goto .pop_zero
cmp byte [edx + eax ],bl
jne .pop_zero
inc eax ; count = count + 1
dec ecx ; Length = Length - 1
jnz .loop_1byte ; if (Length!=0) goto .loop_1byte
.pop_zero:
pop ebx ; restore regiester
pop edi
.zero:
ret 12 ; return count

50
reactos/lib/ntdll/nasm/rtl/i386_RtlCompareMemoryUlong.asm Normal file
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; * base on ntdll/rtl/mem.c v 1.13 2003/07/11 13:50:23
; *
; * COPYRIGHT: See COPYING in the top level directory
; * PROJECT: ReactOS kernel
; * FILE: i386_RtlCompareMemoryUlong.asm
; * PURPOSE: Memory functions
; * PROGRAMMER: Magnus Olsen (magnusolsen@greatlord.com)
; * UPDATE HISTORY:
; * Created 20/07-2003
; *
BITS 32
GLOBAL _RtlCompareMemoryUlong@12 ; [5] (no bug)
SECTION .text
;*
;* [5] ULONG STDCALL RtlCompareMemoryUlong (PVOID Source, ULONG Length, ULONG Value)
;*
_RtlCompareMemoryUlong@12:
xor eax,eax
mov ecx, dword [esp + 8 ] ; ecx = Length
shr ecx,2 ; Length / sizeof(ULONG)
jz .zero ; if (Length==0) goto .zero
push edi ; register that does not to be save eax,ecx,edx to
push ebx ; the stack for protetion
mov edi, dword [esp + (4 + 8)] ; edx = Destination
mov eax, dword [esp + (12 + 8)] ; ebx = value
mov ebx,ecx
cld
repe scasd
inc ecx
mov eax,ebx
sub eax,ecx
shl eax,2
pop ebx
pop edi
.zero
ret 12

36
reactos/lib/ntdll/nasm/rtl/i386_RtlFillMemory.asm Normal file
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; * base on ntdll/rtl/mem.c v 1.13 2003/07/11 13:50:23
; *
; * COPYRIGHT: See COPYING in the top level directory
; * PROJECT: ReactOS kernel
; * FILE: i386_RtlCompareMemory.asm
; * PURPOSE: Memory functions
; * PROGRAMMER: Magnus Olsen (magnusolsen@greatlord.com)
; * UPDATE HISTORY:
; * Created 20/07-2003
; *
BITS 32
GLOBAL _RtlFillMemory@12 ; [4] (no bug)
SECTION .text
; *
; * [6] VOID STDCALL RtlFillMemory (PVOID Destination, ULONG Length, UCHAR Fill)
; *
_RtlFillMemory@12:
mov ecx,dword [esp + 8 ] ; ecx = Length
cmp ecx,0 ; if (Length==0) goto .zero
je .zero
mov edx, dword [esp + 4] ; edx = Destination
mov eax, dword [esp + 12] ; eax = fill
.loop:
mov byte [edx + ecx -1],al ; src[Length - 1] = fill
dec ecx ; Length = Length - 1
jnz .loop ; if (Length!=0) goto .loop
.zero:
ret 12 ; return

38
reactos/lib/ntdll/nasm/rtl/i386_RtlFillMemoryUlong.asm Normal file
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; * base on ntdll/rtl/mem.c v 1.13 2003/07/11 13:50:23
; *
; * COPYRIGHT: See COPYING in the top level directory
; * PROJECT: ReactOS kernel
; * FILE: i386_RtlMemoryUlong.asm
; * PURPOSE: Memory functions
; * PROGRAMMER: Magnus Olsen (magnusolsen@greatlord.com)
; * UPDATE HISTORY:
; * Created 20/07-2003
; *
BITS 32
GLOBAL _RtlFillMemoryUlong@12 ; (no bug) (max optimze code)
SECTION .text
; *
; * VOID STDCALL RtlFillMemoryUlong (PVOID Destination, ULONG Length, ULONG Fill)
; *
_RtlFillMemoryUlong@12:
mov ecx, dword [esp + 8 ] ; Length
shr ecx,2 ; Length = Length / sizeof(ULONG)
jz .zero ; if (Length==0) goto .zero
push edi
mov edi, dword [esp + (4 + 4)] ; Destination
mov eax, dword [esp + (12 + 4)] ; Fill
cld
rep stosd ; while (Length>0) {Destination[Length-1]=Fill; Length = Length - 1}
pop edi
.zero:
ret 12

69
reactos/lib/ntdll/nasm/rtl/i386_RtlMoveMemory.asm Normal file
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; * base on ntdll/rtl/mem.c v 1.13 2003/07/11 13:50:23
; *
; * COPYRIGHT: See COPYING in the top level directory
; * PROJECT: ReactOS kernel
; * FILE: i386_RtlMemory.asm
; * PURPOSE: Memory functions
; * PROGRAMMER: Magnus Olsen (magnusolsen@greatlord.com)
; * UPDATE HISTORY:
; * Created 20/07-2003
; *
BITS 32
GLOBAL _RtlMoveMemory@12 ; (no bug) (max optimze code)
SECTION .text
; *
; * [1] VOID STDCALL RtlMoveMemory (PVOID Destination, CONST VOID *Source,ULONG Length);
; *
_RtlMoveMemory@12:
mov ecx,dword [esp + 12 ] ; ecx = Length
cmp ecx,0 ; if (Length==0) goto .zero
je .zero
pushad
mov edi, dword [esp + (4 + 32)] ; eax = Destination
mov esi, dword [esp + (8 + 32)] ; edx = Source
; calc how many bytes it should handle same time
mov ebx,ecx ; temp_Length = Length
shr ecx,2 ; Length = Length / sizeof(ULONG)
jz .1byte ; if (Length==0) goto .1byte
shl ecx,2 ; Length = Length * sizeof(ULONG)
sub ebx,ecx ; temp_Length = temp_Length - Length
jz .4bytes ; if (temp_Length==0) goto .4byte
; move 4byte and 1byte
shr ecx,2 ; Length = Length / sizeof(ULONG)
cld ; clear d flag
rep movsd ; while (Length!=0) { (ULONG *) Destination[Length-1] = (ULONG *) Source[Length-1]; Legnth = Legnth - 1 }
mov ecx,ebx ; Length = temp_Length
rep movsb ; while (Length!=0) { (UCHAR *) Destination[Length-1] = (UCHAR *) Source[Length-1]; Legnth = Legnth - 1 }
popad ; restore regiester
ret 12 ; return
; move 1byte
.1byte:
mov ecx,dword [esp + (12 +32) ] ; ecx = Length
cld ; clear d flag
rep movsb ; while (Length!=0) { (UCHAR *) Destination[Length-1] = (UCHAR *) Source[Length-1]; Legnth = Legnth - 1 }
popad ; restore regiester
ret 12 ; return
; move 4bytes
.4bytes:
shr ecx,2 ; Length = Length / sizeof(ULONG)
cld ; clear d flag
rep movsd ; while (Length!=0) { (ULONG *) Destination[Length-1] = (ULONG *) Source[Length-1]; Legnth = Legnth - 1 }
popad ; restore regiester
.zero:
ret 12 ; return

249
reactos/lib/ntdll/nasm/rtl/i386_RtlRandom.asm Normal file
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; * base on ntdll/rtl/random.c v 1.1 2003/06/07 11:32:03
; *
; * COPYRIGHT: See COPYING in the top level directory
; * PROJECT: ReactOS kernel
; * FILE: i386_RtlRandom.asm
; * PURPOSE: Random number generator functions
; * PROGRAMMER: Magnus Olsen (magnusolsen@greatlord.com)
; * UPDATE HISTORY:
; * Created 20/07-2003
; *
BITS 32
GLOBAL _RtlRandom@4 ; [1] (no bug) (max optimze code)
GLOBAL _RtlUniform@4 ; [2] (no bug) (max optimze code)
GLOBAL _SavedValue ; [3] (no bug) (max optimze code)
SECTION .text
_RtlRandom@4:
; load pointer
mov ecx,[esp+4]
mov eax,[ecx]
; Result = *Seed * 0xffffffed + 0x7fffffc3 ; take now 3 cycles
lea edx,[eax + eax * 8]
lea eax,[eax + edx * 2 + 2147483709 ] ; + 2147483709
neg eax
cmp eax,-1
je .RtlRandom_Rand1
cmp eax, 2147483646
je .RtlRandom_Rand1
cmp eax, 2147483647
je .RtlRandom_Rand2
test eax,eax
jns .RtlRandom_Rand3
; else {
mov edx,eax
and edx,1
add eax,edx
and eax,2147483647
mov [ecx],eax
jmp .RtlRandom_Seed
.RtlRandom_Rand1:
; if (Result == 0xffffffff || Result == 0x7ffffffe)
add eax, 2
and eax, 2147483647
mov [ecx],eax
jmp .RtlRandom_Seed
.RtlRandom_Rand2:
; else if (Result == 0x7fffffff)
xor eax,eax
mov [ecx],eax
jmp .RtlRandom_Seed
.RtlRandom_Rand3:
; else if ((Result & 0x80000000) == 0)
mov edx,eax
xor edx,-1 ; not edx lock all clock until it finsish, but xor does not do that
and edx,1
add eax,edx
mov [ecx],eax
.RtlRandom_Seed:
mov eax,[ecx]
; Result = *Seed * 0xffffffed + 0x7fffffc3 ; take now 3 cycles
lea edx,[eax + eax * 8]
lea eax,[eax + edx * 2 + 2147483709 ] ; + 2147483709 09-18
neg eax
cmp eax,-1
je .RtlRandom_Seed1
cmp eax, 2147483646
je .RtlRandom_Seed1
cmp eax, 2147483647
je .RtlRandom_Seed2
test eax,eax
jns .RtlRandom_Seed3
; else {
mov edx,eax
and edx,1
add eax,edx
and eax,2147483647
; end
mov edx,[ecx]
mov [ecx],eax
mov ecx,eax ; pos
and ecx, 0x7f ; pos = seed & 0x7f
mov eax,ecx;
mov eax, dword [_SavedValue + (ecx*4)]
mov dword [_SavedValue + (ecx*4)], edx
ret 4
.RtlRandom_Seed1:
; if (Result == 0xffffffff || Result == 0x7ffffffe)
add eax, 2
and eax, 2147483647
; end
mov edx,[ecx]
mov [ecx],eax
mov ecx,eax ; pos
and ecx, 0x7f ; pos = seed & 0x7f
mov eax,ecx;
mov eax, dword [_SavedValue + (ecx*4)]
mov dword [_SavedValue + (ecx*4)], edx
ret 4
.RtlRandom_Seed2:
; else if (Result == 0x7fffffff)
xor eax,eax
; end
mov edx,[ecx]
mov [ecx],eax
mov ecx,eax ; pos
and ecx, 0x7f ; pos = seed & 0x7f
mov eax,ecx;
mov eax, dword [_SavedValue + (ecx*4)]
mov dword [_SavedValue + (ecx*4)], edx
ret 4
.RtlRandom_Seed3:
; else if ((Result & 0x80000000) == 0)
mov edx,eax
xor edx,-1 ; not edx lock all clock until it finsish, but xor does not do that
and edx,1
add eax,edx
; end
mov edx,[ecx]
mov [ecx],eax
mov ecx,eax ; pos
and ecx, 0x7f ; pos = seed & 0x7f
mov eax,ecx;
mov eax, dword [_SavedValue + (ecx*4)]
mov dword [_SavedValue + (ecx*4)], edx
ret 4
; prototype: ULONG STDCALL RtlUniform (PULONG Seed)
_RtlUniform@4:
; load pointer
mov ecx,[esp+4]
mov eax,[ecx]
; Result = *Seed * 0xffffffed + 0x7fffffc3 ; take now 3 cycles
lea edx,[eax + eax * 8]
lea eax,[eax + edx * 2 + 2147483709 ] ; + 2147483709 09-18
neg eax
cmp eax,-1
je .RtlUniform_jump1
cmp eax, 2147483646
je .RtlUniform_jump1
cmp eax, 2147483647
je .RtlUniform_jump2
test eax,eax
jns .RtlUniform_jump3
; else {
mov edx,eax
and edx,1
add eax,edx
and eax,2147483647
mov [ecx],eax
ret 4
.RtlUniform_jump1:
; if (Result == 0xffffffff || Result == 0x7ffffffe)
add eax, 2
and eax, 2147483647
mov [ecx],eax
ret 4
.RtlUniform_jump2:
; else if (Result == 0x7fffffff)
xor eax,eax
mov [ecx],eax
ret 4
.RtlUniform_jump3:
; else if ((Result & 0x80000000) == 0)
mov edx,eax
xor edx,-1 ; not edx lock all clock until it finsish, but xor does not do that
and edx,1
add eax,edx
mov [ecx],eax
ret 4
SECTION .data
; SavedValue[128]
_SavedValue:
dd 0x4c8bc0aa, 0x4c022957, 0x2232827a, 0x2f1e7626
dd 0x7f8bdafb, 0x5c37d02a, 0x0ab48f72, 0x2f0c4ffa
dd 0x290e1954, 0x6b635f23, 0x5d3885c0, 0x74b49ff8
dd 0x5155fa54, 0x6214ad3f, 0x111e9c29, 0x242a3a09
dd 0x75932ae1, 0x40ac432e, 0x54f7ba7a, 0x585ccbd5
dd 0x6df5c727, 0x0374dad1, 0x7112b3f1, 0x735fc311
dd 0x404331a9, 0x74d97781, 0x64495118, 0x323e04be
dd 0x5974b425, 0x4862e393, 0x62389c1d, 0x28a68b82
dd 0x0f95da37, 0x7a50bbc6, 0x09b0091c, 0x22cdb7b4
dd 0x4faaed26, 0x66417ccd, 0x189e4bfa, 0x1ce4e8dd
dd 0x5274c742, 0x3bdcf4dc, 0x2d94e907, 0x32eac016
dd 0x26d33ca3, 0x60415a8a, 0x31f57880, 0x68c8aa52
dd 0x23eb16da, 0x6204f4a1, 0x373927c1, 0x0d24eb7c
dd 0x06dd7379, 0x2b3be507, 0x0f9c55b1, 0x2c7925eb
dd 0x36d67c9a, 0x42f831d9, 0x5e3961cb, 0x65d637a8
dd 0x24bb3820, 0x4d08e33d, 0x2188754f, 0x147e409e
dd 0x6a9620a0, 0x62e26657, 0x7bd8ce81, 0x11da0abb
dd 0x5f9e7b50, 0x23e444b6, 0x25920c78, 0x5fc894f0
dd 0x5e338cbb, 0x404237fd, 0x1d60f80f, 0x320a1743
dd 0x76013d2b, 0x070294ee, 0x695e243b, 0x56b177fd
dd 0x752492e1, 0x6decd52f, 0x125f5219, 0x139d2e78
dd 0x1898d11e, 0x2f7ee785, 0x4db405d8, 0x1a028a35
dd 0x63f6f323, 0x1f6d0078, 0x307cfd67, 0x3f32a78a
dd 0x6980796c, 0x462b3d83, 0x34b639f2, 0x53fce379
dd 0x74ba50f4, 0x1abc2c4b, 0x5eeaeb8d, 0x335a7a0d
dd 0x3973dd20, 0x0462d66b, 0x159813ff, 0x1e4643fd
dd 0x06bc5c62, 0x3115e3fc, 0x09101613, 0x47af2515
dd 0x4f11ec54, 0x78b99911, 0x3db8dd44, 0x1ec10b9b
dd 0x5b5506ca, 0x773ce092, 0x567be81a, 0x5475b975
dd 0x7a2cde1a, 0x494536f5, 0x34737bb4, 0x76d9750b
dd 0x2a1f6232, 0x2e49644d, 0x7dddcbe7, 0x500cebdb
dd 0x619dab9e, 0x48c626fe, 0x1cda3193, 0x52dabe9d

65
reactos/lib/ntdll/nasm/rtl/i386_RtlZeroMemory.asm Normal file
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; *
; * COPYRIGHT: See COPYING in the top level directory
; * PROJECT: ReactOS kernel
; * FILE: i386_RtlZeroMemory.asm
; * PURPOSE: Memory functions
; * PROGRAMMER: Magnus Olsen (magnusolsen@greatlord.com)
; * UPDATE HISTORY:
; * Created 20/07-2003
; *
BITS 32
GLOBAL _RtlZeroMemory@8 ; (no bug) (max optimze code)
SECTION .text
; *
; * [1] VOID STDCALL RtlZeroMemory (PVOID Destination, ULONG Length);
; *
_RtlZeroMemory@8:
mov ecx,dword [esp + 8 ] ; Length
cmp ecx,0 ; if (Length==0) goto .zero
je .zero
pushad ; Save all register on the stack
mov edi, dword [esp + (4 + 32)] ; Destination
xor eax,eax ; ZeroFillByte = 0
; code for take four byte each time it loop
mov ebx,ecx ; temp_Length = Length
shr ecx,2 ; Length = Length / sizeof(ULONG)
jz .1byte ; if (Length==0) goto .1byte
shl ecx,2 ; Length = Length * sizeof(ULONG)
sub ebx,ecx ; temp_Length = temp_Length - Length;
jz .4bytes ; if (temp_Length==0) goto .4byte
; move 4byte and 1byte
shr ecx,2 ; Length = Length / sizeof(ULONG)
cld ; clear d flag
rep stosd ; while (Length!=0) { (ULONG *) Destination[Length-1]=ZeroFillByte; Legnth = Legnth - 1 }
mov ecx,ebx ; Length = temp_Length
rep stosb ; while (Length!=0) { (UCHAR *) Destination[Length-1]=ZeroFillByte; Legnth = Legnth - 1 }
popad ; restore register
ret 8 ; return
; move 1byte
.1byte:
mov ecx,dword [esp + (12 +32) ] ; Length
cld ; clear d flag
rep stosb ; while (Length!=0) { (UCHAR *) Destination[Length-1]=ZeroFillByte; Legnth = Legnth - 1 }
popad ; restore register
ret 8 ; return
; move 4bytes
.4bytes:
shr ecx,2 ; Length = Length / sizeof(ULONG)
cld ; clear d flag
rep stosd ; while (Length!=0) { (ULONG *) Destination[Length-1]=ZeroFillByte; Legnth = Legnth - 1 }
popad ; restore register
.zero:
ret 8 ; return