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{ %cpu=i386 }
{ Source provided for Free Pascal Bug Report 3577 }
{ Submitted by "Simon Kissel" on 2005-01-19 }
{ e-mail: scamp@untergrund.net }
{$mode delphi}
procedure IntCopy16;
asm
MOV EAX,[ESI]
MOV [EDI],EAX
MOV EAX,[ESI+4]
MOV [EDI+4],EAX
MOV EAX,[ESI+8]
MOV [EDI+8],EAX
MOV EAX,[ESI+12]
MOV [EDI+12],EAX
MOV EAX,[ESI+16]
MOV [EDI+16],EAX
MOV EAX,[ESI+20]
MOV [EDI+20],EAX
MOV EAX,[ESI+24]
MOV [EDI+24],EAX
MOV EAX,[ESI+28]
MOV [EDI+28],EAX
MOV EAX,[ESI+32]
MOV [EDI+32],EAX
MOV EAX,[ESI+36]
MOV [EDI+36],EAX
MOV EAX,[ESI+40]
MOV [EDI+40],EAX
MOV EAX,[ESI+44]
MOV [EDI+44],EAX
MOV EAX,[ESI+48]
MOV [EDI+48],EAX
MOV EAX,[ESI+52]
MOV [EDI+52],EAX
MOV EAX,[ESI+56]
MOV [EDI+56],EAX
MOV EAX,[ESI+60]
MOV [EDI+60],EAX
end;
procedure Q_CopyMem(Source, Dest: Pointer; L: Cardinal);
asm
PUSH EDI
PUSH ESI
MOV EDI,EDX
MOV EDX,ECX
MOV ESI,EAX
TEST EDI,3
JNE @@cl
SHR ECX,2
AND EDX,3
CMP ECX,16
JBE @@cw0
@@lp0: CALL IntCopy16
ADD ESI,64
SUB ECX,16
ADD EDI,64
CMP ECX,16
JA @@lp0
@@cw0: JMP DWORD PTR @@wV[ECX*4]
@@cl: MOV EAX,EDI
MOV EDX,3
SUB ECX,4
JB @@bc
AND EAX,3
ADD ECX,EAX
JMP DWORD PTR @@lV[EAX*4-4]
@@bc: JMP DWORD PTR @@tV[ECX*4+16]
@@lV: DD @@l1, @@l2, @@l3
@@l1: AND EDX,ECX
MOV AL,[ESI]
MOV [EDI],AL
MOV AL,[ESI+1]
MOV [EDI+1],AL
MOV AL,[ESI+2]
SHR ECX,2
MOV [EDI+2],AL
ADD ESI,3
ADD EDI,3
CMP ECX,16
JBE @@cw1
@@lp1: CALL IntCopy16
ADD ESI,64
SUB ECX,16
ADD EDI,64
CMP ECX,16
JA @@lp1
@@cw1: JMP DWORD PTR @@wV[ECX*4]
@@l2: AND EDX,ECX
MOV AL,[ESI]
MOV [EDI],AL
MOV AL,[ESI+1]
SHR ECX,2
MOV [EDI+1],AL
ADD ESI,2
ADD EDI,2
CMP ECX,16
JBE @@cw2
@@lp2: CALL IntCopy16
ADD ESI,64
SUB ECX,16
ADD EDI,64
CMP ECX,16
JA @@lp2
@@cw2: JMP DWORD PTR @@wV[ECX*4]
@@l3: AND EDX,ECX
MOV AL,[ESI]
MOV [EDI],AL
INC ESI
SHR ECX,2
INC EDI
CMP ECX,16
JBE @@cw3
@@lp3: CALL IntCopy16
ADD ESI,64
SUB ECX,16
ADD EDI,64
CMP ECX,16
JA @@lp3
@@cw3: JMP DWORD PTR @@wV[ECX*4]
@@wV: DD @@w0, @@w1, @@w2, @@w3
DD @@w4, @@w5, @@w6, @@w7
DD @@w8, @@w9, @@w10, @@w11
DD @@w12, @@w13, @@w14, @@w15
DD @@w16
@@w16: MOV EAX,[ESI+ECX*4-64]
MOV [EDI+ECX*4-64],EAX
@@w15: MOV EAX,[ESI+ECX*4-60]
MOV [EDI+ECX*4-60],EAX
@@w14: MOV EAX,[ESI+ECX*4-56]
MOV [EDI+ECX*4-56],EAX
@@w13: MOV EAX,[ESI+ECX*4-52]
MOV [EDI+ECX*4-52],EAX
@@w12: MOV EAX,[ESI+ECX*4-48]
MOV [EDI+ECX*4-48],EAX
@@w11: MOV EAX,[ESI+ECX*4-44]
MOV [EDI+ECX*4-44],EAX
@@w10: MOV EAX,[ESI+ECX*4-40]
MOV [EDI+ECX*4-40],EAX
@@w9: MOV EAX,[ESI+ECX*4-36]
MOV [EDI+ECX*4-36],EAX
@@w8: MOV EAX,[ESI+ECX*4-32]
MOV [EDI+ECX*4-32],EAX
@@w7: MOV EAX,[ESI+ECX*4-28]
MOV [EDI+ECX*4-28],EAX
@@w6: MOV EAX,[ESI+ECX*4-24]
MOV [EDI+ECX*4-24],EAX
@@w5: MOV EAX,[ESI+ECX*4-20]
MOV [EDI+ECX*4-20],EAX
@@w4: MOV EAX,[ESI+ECX*4-16]
MOV [EDI+ECX*4-16],EAX
@@w3: MOV EAX,[ESI+ECX*4-12]
MOV [EDI+ECX*4-12],EAX
@@w2: MOV EAX,[ESI+ECX*4-8]
MOV [EDI+ECX*4-8],EAX
@@w1: MOV EAX,[ESI+ECX*4-4]
MOV [EDI+ECX*4-4],EAX
SHL ECX,2
ADD ESI,ECX
ADD EDI,ECX
@@w0: JMP DWORD PTR @@tV[EDX*4]
@@tV: DD @@t0, @@t1, @@t2, @@t3
@@t3: MOV AL,[ESI+2]
MOV [EDI+2],AL
@@t2: MOV AL,[ESI+1]
MOV [EDI+1],AL
@@t1: MOV AL,[ESI]
MOV [EDI],AL
@@t0: POP ESI
POP EDI
end;
begin
end.
|
