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// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// e32\common\arm\cdes16.cia
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//
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//
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#include <e32cia.h>
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#include "../common.h"
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#if defined(__DES16_MACHINE_CODED__) || defined(__EABI__)
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GLREF_C void Des16PanicBadDesType();
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GLREF_C void Des16PanicPosOutOfRange();
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#endif
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#ifdef __DES16_MACHINE_CODED__
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GLREF_C void Des16PanicLengthNegative();
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GLREF_C void Des16PanicMaxLengthNegative();
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GLREF_C void Des16PanicLengthOutOfRange();
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GLREF_C void Des16PanicDesOverflow();
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GLREF_C void Des16PanicDesIndexOutOfRange();
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__NAKED__ EXPORT_C const TUint16 *TDesC16::Ptr() const
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//
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// Return a pointer to the buffer.
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//
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{
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asm("ldr r1, [r0], #4 ");
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asm("cmp r1, #0x50000000 ");
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asm("bcs " CSM_Z20Des16PanicBadDesTypev);
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asm("eor r1, r1, r1, lsr #1 ");
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asm("msr cpsr_flg, r1 ");
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asm("addcs r0, r0, #4 ");
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asm("ldrle r0, [r0] ");
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asm("addeq r0, r0, #4 ");
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__JUMP(,lr);
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}
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#ifndef __EABI_CTORS__
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__NAKED__ EXPORT_C TPtrC16::TPtrC16()
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//
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// Default constructor
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//
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{
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asm("mov r1, #0x10000000 "); // type=EPtrC, length=0
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asm("mov r2, #0 "); // ptr=NULL
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asm("stmia r0, {r1,r2} ");
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__JUMP(,lr);
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}
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__NAKED__ EXPORT_C TPtrC16::TPtrC16(const TDesC16& /*aDes*/)
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//
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// Constructor
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//
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{
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asm("ldr r2, [r1], #4 "); // r2 = type/length
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asm("bic r3, r2, #0xF0000000"); // r3 = length
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asm("orr r3, r3, #0x10000000"); // r3 = EPtrC + length
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asm("cmp r2, #0x50000000 ");
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asm("bcs " CSM_Z20Des16PanicBadDesTypev);
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asm("eor r2, r2, r2, lsr #1 ");
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asm("msr cpsr_flg, r2 ");
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asm("addcs r1, r1, #4 ");
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asm("ldrle r1, [r1] ");
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asm("addeq r1, r1, #4 "); // r1 = aDes.Ptr()
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asm("str r3, [r0] ");
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asm("str r1, [r0, #4] ");
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__JUMP(,lr);
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}
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#ifdef __DES16_MACHINE_CODED_HWORD__
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__NAKED__ EXPORT_C TPtrC16::TPtrC16(const TUint16* /*aString*/)
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//
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// Constructor
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//
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{
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asm("mov r2, r1 "); // save aString address
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asm("1: ");
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asm("ldrh r3, [r1], #2 ");
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asm("cmp r3, #0 ");
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asm("bne 1b "); // loop until we reach zero terminator
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asm("rsb r1, r2, r1 "); // r1 = 2*length + 2
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asm("sub r1, r1, #2 "); // r1 = 2*length
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asm("mov r1, r1, lsr #1 "); // r1 = length
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asm("orr r1, r1, #0x10000000 "); // r1=EPtrC + length
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asm("stmia r0, {r1, r2} "); // store type/length and ptr fields
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__JUMP(,lr);
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}
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#endif
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__NAKED__ EXPORT_C TPtrC16::TPtrC16(const TUint16* /*aBuf*/,TInt /*aLength*/)
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//
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// Constructor
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//
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{
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asm("orrs r2, r2, #0x10000000 ");
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asm("strpl r2, [r0] ");
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asm("strpl r1, [r0, #4] ");
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__JUMP(pl,lr);
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asm("b " CSM_Z24Des16PanicLengthNegativev);
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}
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__NAKED__ EXPORT_C TPtr16::TPtr16(TUint16* /*aBuf*/,TInt /*aMaxLength*/)
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//
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// Constructor
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//
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{
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asm("cmp r2, #0 ");
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asm("movpl r3, r1 ");
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asm("movpl r1, #0x20000000 "); // length=0, EPtr
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asm("stmplia r0, {r1,r2,r3} ");
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__JUMP(pl,lr);
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asm("b " CSM_Z27Des16PanicMaxLengthNegativev);
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}
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__NAKED__ EXPORT_C TPtr16::TPtr16(TUint16* /*aBuf*/,TInt /*aLength*/,TInt /*aMaxLength*/)
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//
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// Constructor
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//
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{
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asm("cmp r2, #0 "); // check length>=0
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asm("cmpge r3, r2 "); // if so, check maxlength>=length
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asm("movge r12, r1 ");
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asm("orrge r2, r2, #0x20000000 "); // r2 = length + EPtr
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asm("stmgeia r0, {r2,r3,r12} ");
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__JUMP(ge,lr);
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asm("cmp r2, #0 ");
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asm("bmi " CSM_Z24Des16PanicLengthNegativev);
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asm("cmp r3, #0 ");
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asm("bmi " CSM_Z27Des16PanicMaxLengthNegativev);
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asm("b " CSM_Z26Des16PanicLengthOutOfRangev);
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}
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__NAKED__ EXPORT_C TPtr16::TPtr16(TBufCBase16& /*aLcb*/,TInt /*aMaxLength*/)
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//
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// Constructor
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//
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{
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asm("mov r3, r1 ");
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asm("ldr r1, [r3] ");
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asm("bic r1, r1, #0xF0000000 "); // r1=aLcb.Length()
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asm("cmp r1, r2 "); // check against maxlength
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asm("orrle r1, r1, #0x40000000 "); // r1=aLcb.Length() + EBufCPtr
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asm("stmleia r0, {r1,r2,r3} ");
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__JUMP(le,lr);
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asm("b " CSM_Z26Des16PanicLengthOutOfRangev);
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}
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__NAKED__ EXPORT_C TBufCBase16::TBufCBase16()
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//
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// Constructor
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//
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{
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asm("mov r1, #0 ");
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asm("str r1, [r0] ");
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__JUMP(,lr);
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}
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#ifdef __DES16_MACHINE_CODED_HWORD__
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__NAKED__ EXPORT_C TBufCBase16::TBufCBase16(const TUint16* /*aString*/,TInt /*aMaxLength*/)
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//
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// Constructor
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//
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{
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asm("sub r3, r1, #2 "); // r3=aString address-2
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asm("1: ");
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asm("ldrh r12, [r3, #2]! ");
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asm("cmp r12, #0 ");
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asm("bne 1b "); // loop until we reach zero terminator
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asm("sub r3, r3, r1 "); // r3 = 2*length
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asm("mov r3, r3, lsr #1 "); // r3 = length (+EBufC)
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asm("cmp r3, r2 "); // check against max length
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asm("bgt Des16PanicLengthOutOfRange__Fv ");
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asm("stmfd sp!, {r0,lr} "); // save registers for function call
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asm("str r3, [r0], #4 "); // save length/type field, r0->buffer
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asm("add r2, r3, r3 "); // size=2*length into r2 for function call
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asm("bl memmove "); // call memmove
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__POPRET("r0,");
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}
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#endif
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__NAKED__ EXPORT_C TBufCBase16::TBufCBase16(const TDesC16& /*aDes*/,TInt /*aMaxLength*/)
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//
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// Constructor
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//
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{
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asm("ldr r3, [r1], #4 "); // r3 = type/length
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asm("bic r12, r3, #0xF0000000"); // r12 = length
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asm("cmp r12, r2 "); // compare with maxlength
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asm("bgt " CSM_Z26Des16PanicLengthOutOfRangev);
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asm("cmp r3, #0x50000000 ");
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asm("bcs " CSM_Z20Des16PanicBadDesTypev);
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asm("eor r3, r3, r3, lsr #1 ");
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asm("msr cpsr_flg, r3 ");
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asm("addcs r1, r1, #4 ");
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asm("ldrle r1, [r1] ");
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asm("addeq r1, r1, #4 "); // r1 = aDes.Ptr()
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asm("stmfd sp!, {r0,lr} "); // save registers for function call
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asm("str r12, [r0], #4 "); // store length/type, r0->buffer
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asm("add r2, r12, r12 "); // size=2*length into r2 for function call
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asm("bl memmove "); // call memmove
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__POPRET("r0,");
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}
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#endif
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#ifdef __DES16_MACHINE_CODED_HWORD__
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__NAKED__ EXPORT_C void TBufCBase16::Copy(const TUint16* /*aString*/,TInt /*aMaxLength*/)
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//
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// Copy from a string.
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//
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{
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asm("sub r3, r1, #2 "); // r3=aString address-2
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asm("1: ");
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asm("ldrh r12, [r3, #2]! ");
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asm("cmp r12, #0 ");
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asm("bne 1b "); // loop until we reach zero terminator
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asm("sub r3, r3, r1 "); // r3 = 2*length
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asm("mov r3, r3, lsr #1 "); // r3 = length (+EBufC)
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asm("cmp r3, r2 "); // check against max length
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asm("bgt Des16PanicLengthOutOfRange__Fv ");
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asm("str r3, [r0], #4 "); // save length/type field, r0->buffer
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asm("add r2, r3, r3 "); // size=2*length into r2 for function call
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asm("b memmove "); // call memmove
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}
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#endif
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__NAKED__ EXPORT_C void TBufCBase16::Copy(const TDesC16& /*aDes*/,TInt /*aMaxLength*/)
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//
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// Copy from a descriptor.
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//
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{
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asm("ldr r3, [r1], #4 "); // r3 = type/length
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asm("bic r12, r3, #0xF0000000"); // r12 = length
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asm("cmp r12, r2 "); // compare with maxlength
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asm("bgt " CSM_Z21Des16PanicDesOverflowv);
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asm("cmp r3, #0x50000000 ");
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asm("bcs " CSM_Z20Des16PanicBadDesTypev);
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asm("eor r3, r3, r3, lsr #1 ");
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asm("msr cpsr_flg, r3 ");
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asm("addcs r1, r1, #4 ");
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asm("ldrle r1, [r1] ");
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asm("addeq r1, r1, #4 "); // r1 = aDes.Ptr()
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asm("str r12, [r0], #4 "); // store length/type, r0->buffer
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asm("add r2, r12, r12 "); // size=2*length into r2 for function call
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asm("b memmove "); // call memmove
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}
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#ifndef __EABI_CTORS__
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__NAKED__ EXPORT_C TBufBase16::TBufBase16(TInt /*aMaxLength*/)
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{
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asm("mov r2, #0x30000000 "); // EBuf + zero length
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asm("str r2, [r0] ");
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|
266 |
asm("str r1, [r0, #4] ");
|
|
sl@0
|
267 |
__JUMP(,lr);
|
|
sl@0
|
268 |
}
|
|
sl@0
|
269 |
|
|
sl@0
|
270 |
__NAKED__ EXPORT_C TBufBase16::TBufBase16(TInt /*aLength*/, TInt /*aMaxLength*/)
|
|
sl@0
|
271 |
{
|
|
sl@0
|
272 |
asm("cmp r1, #0 "); // check length>=0
|
|
sl@0
|
273 |
asm("cmpge r2, r1 "); // if so, check maxlength>=length
|
|
sl@0
|
274 |
asm("orrge r1, r1, #0x30000000 "); // r1=length + EBuf
|
|
sl@0
|
275 |
asm("stmgeia r0, {r1,r2} "); // store length/type and maxlength fields
|
|
sl@0
|
276 |
__JUMP(ge,lr);
|
|
sl@0
|
277 |
asm("cmp r2, #0 ");
|
|
sl@0
|
278 |
asm("bmi " CSM_Z27Des16PanicMaxLengthNegativev);
|
|
sl@0
|
279 |
asm("b " CSM_Z26Des16PanicLengthOutOfRangev);
|
|
sl@0
|
280 |
}
|
|
sl@0
|
281 |
|
|
sl@0
|
282 |
#ifdef __DES16_MACHINE_CODED_HWORD__
|
|
sl@0
|
283 |
__NAKED__ EXPORT_C TBufBase16::TBufBase16(const TUint16* /*aString*/, TInt /*aMaxLength*/)
|
|
sl@0
|
284 |
{
|
|
sl@0
|
285 |
asm("mov r12, r1, lsr #1 "); // save aString pointer (lose bottom bit which should be 0)
|
|
sl@0
|
286 |
asm("1: ");
|
|
sl@0
|
287 |
asm("ldrh r3, [r1], #2 ");
|
|
sl@0
|
288 |
asm("cmp r3, #0 ");
|
|
sl@0
|
289 |
asm("bne 1b "); // loop until we reach zero terminator
|
|
sl@0
|
290 |
asm("rsb r3, r12, r1, lsr #1 "); // r3 = length + 1
|
|
sl@0
|
291 |
asm("sub r3, r3, #1 "); // r3 = length
|
|
sl@0
|
292 |
asm("cmp r3, r2 "); // compare to max length
|
|
sl@0
|
293 |
asm("bgt Des16PanicLengthOutOfRange__Fv "); // length too big, so panic
|
|
sl@0
|
294 |
asm("orr r1, r3, #0x30000000 "); // if length<=max, r1=EBuf + length
|
|
sl@0
|
295 |
asm("stmfd sp!, {r0, lr} "); // save registers for function call
|
|
sl@0
|
296 |
asm("stmia r0!, {r1, r2} "); // store type/length and max length fields, r0->buffer
|
|
sl@0
|
297 |
asm("mov r2, r3, lsl #1 "); // r2=Size()
|
|
sl@0
|
298 |
asm("mov r1, r12, lsl #1 "); // r1=aString
|
|
sl@0
|
299 |
asm("bl memmove "); // call memmove
|
|
sl@0
|
300 |
__POPRET("r0,");
|
|
sl@0
|
301 |
}
|
|
sl@0
|
302 |
#endif
|
|
sl@0
|
303 |
|
|
sl@0
|
304 |
__NAKED__ EXPORT_C TBufBase16::TBufBase16(const TDesC16& /*aDes*/, TInt /*aMaxLength*/)
|
|
sl@0
|
305 |
{
|
|
sl@0
|
306 |
asm("ldr r3, [r1], #4 "); // r3 = type/length
|
|
sl@0
|
307 |
asm("bic r12, r3, #0xF0000000"); // r12 = length
|
|
sl@0
|
308 |
asm("cmp r12, r2 "); // compare with maxlength
|
|
sl@0
|
309 |
asm("bgt " CSM_Z26Des16PanicLengthOutOfRangev);
|
|
sl@0
|
310 |
asm("cmp r3, #0x50000000 ");
|
|
sl@0
|
311 |
asm("bcs " CSM_Z20Des16PanicBadDesTypev);
|
|
sl@0
|
312 |
asm("eor r3, r3, r3, lsr #1 ");
|
|
sl@0
|
313 |
asm("msr cpsr_flg, r3 ");
|
|
sl@0
|
314 |
asm("addcs r1, r1, #4 ");
|
|
sl@0
|
315 |
asm("ldrle r1, [r1] ");
|
|
sl@0
|
316 |
asm("addeq r1, r1, #4 "); // r1 = aDes.Ptr()
|
|
sl@0
|
317 |
asm("stmfd sp!, {r0,lr} "); // save registers for function call
|
|
sl@0
|
318 |
asm("orr r3, r12, #0x30000000 "); // add EBuf type field
|
|
sl@0
|
319 |
asm("str r3, [r0], #4 "); // store length/type, r0->max length
|
|
sl@0
|
320 |
asm("str r2, [r0], #4 "); // store max length, r0->buffer
|
|
sl@0
|
321 |
asm("mov r2, r12, lsl #1 "); // Size() into r2 for function call
|
|
sl@0
|
322 |
asm("bl memmove "); // call memmove
|
|
sl@0
|
323 |
__POPRET("r0,");
|
|
sl@0
|
324 |
}
|
|
sl@0
|
325 |
#endif
|
|
sl@0
|
326 |
|
|
sl@0
|
327 |
__NAKED__ EXPORT_C void TDes16::SetLength(TInt /*aLength*/)
|
|
sl@0
|
328 |
//
|
|
sl@0
|
329 |
// Set the length of the descriptor, checking the length is O.K.
|
|
sl@0
|
330 |
//
|
|
sl@0
|
331 |
{
|
|
sl@0
|
332 |
asm("ldmia r0, {r2,r3} "); // r2=length/type, r3=maxlength
|
|
sl@0
|
333 |
asm("cmp r1, r3 "); // check aLength against maxlength and for -ve values
|
|
sl@0
|
334 |
asm("bhi " CSM_Z21Des16PanicDesOverflowv);
|
|
sl@0
|
335 |
asm("and r2, r2, #0xF0000000 "); // r2=type field
|
|
sl@0
|
336 |
asm("cmp r2, #0x40000000 "); // check for EBufCPtr
|
|
sl@0
|
337 |
asm("orr r2, r2, r1 "); // r2=type + new length
|
|
sl@0
|
338 |
asm("str r2, [r0] "); // store new length
|
|
sl@0
|
339 |
__JUMP(ne,lr);
|
|
sl@0
|
340 |
asm("ldr r2, [r0, #8] "); // r2=pointer to TBufCBase
|
|
sl@0
|
341 |
asm("str r1, [r2] "); // update length of TBufCBase
|
|
sl@0
|
342 |
__JUMP(,lr);
|
|
sl@0
|
343 |
}
|
|
sl@0
|
344 |
|
|
sl@0
|
345 |
__NAKED__ EXPORT_C void TDes16::SetMax()
|
|
sl@0
|
346 |
//
|
|
sl@0
|
347 |
// Set the length to MaxLength().
|
|
sl@0
|
348 |
//
|
|
sl@0
|
349 |
{
|
|
sl@0
|
350 |
asm("ldmia r0, {r1,r2} "); // r1=length/type, r2=maxlength
|
|
sl@0
|
351 |
asm("and r1, r1, #0xF0000000 "); // r1=type field
|
|
sl@0
|
352 |
asm("cmp r1, #0x40000000 "); // check for EBufCPtr
|
|
sl@0
|
353 |
asm("orr r1, r1, r2 "); // r1=type field + maxlength
|
|
sl@0
|
354 |
asm("str r1, [r0] "); // store new length
|
|
sl@0
|
355 |
__JUMP(ne,lr);
|
|
sl@0
|
356 |
asm("ldr r1, [r0, #8] "); // r1 = pointer to TBufCBase
|
|
sl@0
|
357 |
asm("str r2, [r1] "); // update length of TBufCBase
|
|
sl@0
|
358 |
__JUMP(,lr);
|
|
sl@0
|
359 |
}
|
|
sl@0
|
360 |
|
|
sl@0
|
361 |
#ifdef __DES16_MACHINE_CODED_HWORD__
|
|
sl@0
|
362 |
__NAKED__ EXPORT_C void TDes16::Copy(const TUint16* /*aString*/)
|
|
sl@0
|
363 |
//
|
|
sl@0
|
364 |
// Copy a string to this descriptor.
|
|
sl@0
|
365 |
//
|
|
sl@0
|
366 |
{
|
|
sl@0
|
367 |
asm("sub r2, r1, #2 "); // r2=aString-2
|
|
sl@0
|
368 |
asm("1: ");
|
|
sl@0
|
369 |
asm("ldrh r3, [r2, #2]! ");
|
|
sl@0
|
370 |
asm("cmp r3, #0 ");
|
|
sl@0
|
371 |
asm("bne 1b "); // loop until zero terminator reached
|
|
sl@0
|
372 |
asm("sub r2, r2, r1 "); // r2=2*length of string
|
|
sl@0
|
373 |
asm("mov r2, r2, lsr #1 "); // r2=length of string
|
|
sl@0
|
374 |
asm("ldmia r0, {r3,r12} "); // r3=type/length of this, r12=maxlength
|
|
sl@0
|
375 |
asm("cmp r2, r12 "); // compare new length against maxlength
|
|
sl@0
|
376 |
asm("bgt Des16PanicDesOverflow__Fv ");
|
|
sl@0
|
377 |
asm("cmp r3, #0x50000000 ");
|
|
sl@0
|
378 |
asm("bcs Des16PanicBadDesType__Fv ");
|
|
sl@0
|
379 |
asm("and r3, r3, #0xF0000000 "); // r3=type of this
|
|
sl@0
|
380 |
asm("orr r3, r3, r2 "); // r3=new type/length
|
|
sl@0
|
381 |
asm("str r3, [r0], #4 "); // store it
|
|
sl@0
|
382 |
asm("eor r3, r3, r3, lsr #1 ");
|
|
sl@0
|
383 |
asm("msr cpsr_flg, r3 ");
|
|
sl@0
|
384 |
asm("addcs r0, r0, #4 ");
|
|
sl@0
|
385 |
asm("ldrle r0, [r0] ");
|
|
sl@0
|
386 |
asm("streq r2, [r0], #4 "); // if EBufCPtr, update length of TBufCBase, r0=Ptr()
|
|
sl@0
|
387 |
asm("add r2, r2, r2 "); // r2=size=2*length
|
|
sl@0
|
388 |
asm("b memmove "); // call memmove
|
|
sl@0
|
389 |
}
|
|
sl@0
|
390 |
#endif
|
|
sl@0
|
391 |
|
|
sl@0
|
392 |
__NAKED__ EXPORT_C void TDes16::Copy(const TUint16* /*aBuf*/,TInt /*aLength*/)
|
|
sl@0
|
393 |
//
|
|
sl@0
|
394 |
// Copy the aLength characters to the descriptor.
|
|
sl@0
|
395 |
//
|
|
sl@0
|
396 |
{
|
|
sl@0
|
397 |
asm("ldmia r0, {r3,r12} "); // r3=type/length of this, r12=maxlength
|
|
sl@0
|
398 |
asm("cmp r2, r12 "); // compare new length against maxlength
|
|
sl@0
|
399 |
asm("bhi " CSM_Z21Des16PanicDesOverflowv); // Des16Panic if >MaxLength or -ve
|
|
sl@0
|
400 |
asm("cmp r3, #0x50000000 ");
|
|
sl@0
|
401 |
asm("bcs " CSM_Z20Des16PanicBadDesTypev);
|
|
sl@0
|
402 |
asm("and r3, r3, #0xF0000000 "); // r3=type of this
|
|
sl@0
|
403 |
asm("orr r3, r3, r2 "); // r3=new type/length
|
|
sl@0
|
404 |
asm("str r3, [r0], #4 "); // store it
|
|
sl@0
|
405 |
asm("eor r3, r3, r3, lsr #1 ");
|
|
sl@0
|
406 |
asm("msr cpsr_flg, r3 ");
|
|
sl@0
|
407 |
asm("addcs r0, r0, #4 ");
|
|
sl@0
|
408 |
asm("ldrle r0, [r0] ");
|
|
sl@0
|
409 |
asm("streq r2, [r0], #4 "); // if EBufCPtr, update length of TBufCBase, r0=Ptr()
|
|
sl@0
|
410 |
asm("add r2, r2, r2 "); // r2=size=2*length
|
|
sl@0
|
411 |
asm("b memmove "); // call memmove
|
|
sl@0
|
412 |
}
|
|
sl@0
|
413 |
|
|
sl@0
|
414 |
__NAKED__ EXPORT_C void TDes16::Copy(const TDesC16& /*aDes*/)
|
|
sl@0
|
415 |
//
|
|
sl@0
|
416 |
// Copy a descriptor to this descriptor.
|
|
sl@0
|
417 |
//
|
|
sl@0
|
418 |
{
|
|
sl@0
|
419 |
asm("ldr r3, [r1], #4 "); // r3 = type/length of aDes
|
|
sl@0
|
420 |
asm("bic r12, r3, #0xF0000000"); // r12 = aDes.length
|
|
sl@0
|
421 |
asm("ldr r2, [r0, #4] "); // r2=this.maxlength
|
|
sl@0
|
422 |
asm("cmp r12, r2 "); // compare with maxlength
|
|
sl@0
|
423 |
asm("bgt " CSM_Z21Des16PanicDesOverflowv);
|
|
sl@0
|
424 |
asm("ldr r2, [r0] "); // get type of this
|
|
sl@0
|
425 |
asm("cmp r2, #0x50000000 "); // check both descriptor types
|
|
sl@0
|
426 |
asm("cmpcc r3, #0x50000000 ");
|
|
sl@0
|
427 |
asm("bcs " CSM_Z20Des16PanicBadDesTypev);
|
|
sl@0
|
428 |
asm("and r2, r2, #0xF0000000 ");
|
|
sl@0
|
429 |
asm("orr r2, r12, r2 "); // r2=new type/length of this
|
|
sl@0
|
430 |
asm("str r2, [r0], #4 "); // store it
|
|
sl@0
|
431 |
asm("eor r3, r3, r3, lsr #1 ");
|
|
sl@0
|
432 |
asm("msr cpsr_flg, r3 ");
|
|
sl@0
|
433 |
asm("addcs r1, r1, #4 ");
|
|
sl@0
|
434 |
asm("ldrle r1, [r1] ");
|
|
sl@0
|
435 |
asm("addeq r1, r1, #4 "); // r1 = aDes.Ptr()
|
|
sl@0
|
436 |
asm("eor r2, r2, r2, lsr #1 ");
|
|
sl@0
|
437 |
asm("msr cpsr_flg, r2 ");
|
|
sl@0
|
438 |
asm("addcs r0, r0, #4 ");
|
|
sl@0
|
439 |
asm("ldrle r0, [r0] ");
|
|
sl@0
|
440 |
asm("streq r12, [r0], #4 "); // if EBufCPtr, update length of TBufCBase, r0=Ptr()
|
|
sl@0
|
441 |
asm("add r2, r12, r12 "); // size=2*length into r2 for function call
|
|
sl@0
|
442 |
asm("b memmove "); // call memmove
|
|
sl@0
|
443 |
}
|
|
sl@0
|
444 |
|
|
sl@0
|
445 |
__NAKED__ EXPORT_C TPtr16 TDes16::LeftTPtr(TInt /*aLength*/) const
|
|
sl@0
|
446 |
//
|
|
sl@0
|
447 |
// Extract the left portion of the descriptor.
|
|
sl@0
|
448 |
//
|
|
sl@0
|
449 |
{
|
|
sl@0
|
450 |
// On entry r0=return store ptr, r1=this, r2=aLength
|
|
sl@0
|
451 |
// Return TPtr8 ([r0]=length/type,[r0,#4]=maxLength,[r0,#8]=Ptr)
|
|
sl@0
|
452 |
asm("ldr r3, [r1], #4 "); // r3=this.length/type
|
|
sl@0
|
453 |
asm("cmp r2, #0 "); // check aLength>=0
|
|
sl@0
|
454 |
asm("blt Des16PanicPosOutOfRange__Fv "); // if not, panic
|
|
sl@0
|
455 |
asm("bic r12, r3, #0xF0000000 "); // r12=this.Length()
|
|
sl@0
|
456 |
asm("cmp r2, r12 "); // else limit aLength to Length()
|
|
sl@0
|
457 |
asm("movgt r2, r12 ");
|
|
sl@0
|
458 |
asm("cmp r3, #0x50000000 ");
|
|
sl@0
|
459 |
asm("bcs Des16PanicBadDesType__Fv ");
|
|
sl@0
|
460 |
asm("eor r3, r3, r3, lsr #1 ");
|
|
sl@0
|
461 |
asm("msr cpsr_flg, r3 ");
|
|
sl@0
|
462 |
asm("addcs r1, r1, #4 ");
|
|
sl@0
|
463 |
asm("ldrle r1, [r1] ");
|
|
sl@0
|
464 |
asm("addeq r1, r1, #4 "); // r1=this.Ptr()
|
|
sl@0
|
465 |
asm("mov r3, r1 "); // r3=this.Ptr()
|
|
sl@0
|
466 |
asm("orr r1, r2, #0x20000000 "); // r1=aLength + EPtr
|
|
sl@0
|
467 |
asm("stmia r0, {r1-r3} ");
|
|
sl@0
|
468 |
__JUMP(,lr);
|
|
sl@0
|
469 |
}
|
|
sl@0
|
470 |
|
|
sl@0
|
471 |
__NAKED__ EXPORT_C TPtr16 TDes16::RightTPtr(TInt /*aLength*/) const
|
|
sl@0
|
472 |
//
|
|
sl@0
|
473 |
// Extract the right portion of the descriptor.
|
|
sl@0
|
474 |
//
|
|
sl@0
|
475 |
{
|
|
sl@0
|
476 |
// On entry r0=return store ptr, r1=this, r2=aLength
|
|
sl@0
|
477 |
// Return TPtr8 ([r0]=length/type,[r0,#4]=maxLength,[r0,#8]=Ptr)
|
|
sl@0
|
478 |
asm("ldr r3, [r1], #4 "); // r3=this.length/type
|
|
sl@0
|
479 |
asm("cmp r2, #0 "); // check aLength>=0
|
|
sl@0
|
480 |
asm("blt Des16PanicPosOutOfRange__Fv "); // if not, panic
|
|
sl@0
|
481 |
asm("bic r12, r3, #0xF0000000 "); // r12=this.Length()
|
|
sl@0
|
482 |
asm("cmp r2, r12 "); // else limit aLength to Length()
|
|
sl@0
|
483 |
asm("movgt r2, r12 ");
|
|
sl@0
|
484 |
asm("cmp r3, #0x50000000 ");
|
|
sl@0
|
485 |
asm("bcs Des16PanicBadDesType__Fv ");
|
|
sl@0
|
486 |
asm("eor r3, r3, r3, lsr #1 ");
|
|
sl@0
|
487 |
asm("msr cpsr_flg, r3 ");
|
|
sl@0
|
488 |
asm("addcs r1, r1, #4 ");
|
|
sl@0
|
489 |
asm("ldrle r1, [r1] ");
|
|
sl@0
|
490 |
asm("addeq r1, r1, #4 "); // r0=this.Ptr()
|
|
sl@0
|
491 |
asm("add r3, r1, r12, lsl #1 "); // r3=this.Ptr()+len*2
|
|
sl@0
|
492 |
asm("orr r1, r2, #0x20000000 "); // r1=aLength + EPtr
|
|
sl@0
|
493 |
asm("sub r3, r3, r2, lsl #1 "); // r2=Ptr()+len*2-aLength*2
|
|
sl@0
|
494 |
asm("stmia r0, {r1-r3} ");
|
|
sl@0
|
495 |
__JUMP(,lr);
|
|
sl@0
|
496 |
}
|
|
sl@0
|
497 |
|
|
sl@0
|
498 |
__NAKED__ EXPORT_C TPtr16 TDes16::MidTPtr(TInt /*aPos*/) const
|
|
sl@0
|
499 |
//
|
|
sl@0
|
500 |
// Extract the middle portion of the descriptor.
|
|
sl@0
|
501 |
//
|
|
sl@0
|
502 |
{
|
|
sl@0
|
503 |
// On entry r0=return store ptr, r1=this, r2=aPos
|
|
sl@0
|
504 |
// Return TPtr8 ([r0]=length/type,[r0,#4]=maxLength,[r0,#8]=Ptr)
|
|
sl@0
|
505 |
asm("ldr r3, [r1], #4 "); // r3=this.length/type
|
|
sl@0
|
506 |
asm("bic r12, r3, #0xF0000000 "); // r12=this.Length()
|
|
sl@0
|
507 |
asm("cmp r2, #0 "); // check aPos>=0
|
|
sl@0
|
508 |
asm("cmpge r12, r2 "); // if so check Length()>=aPos
|
|
sl@0
|
509 |
asm("blt Des16PanicPosOutOfRange__Fv ");
|
|
sl@0
|
510 |
asm("cmp r3, #0x50000000 ");
|
|
sl@0
|
511 |
asm("bcs Des16PanicBadDesType__Fv ");
|
|
sl@0
|
512 |
asm("eor r3, r3, r3, lsr #1 ");
|
|
sl@0
|
513 |
asm("msr cpsr_flg, r3 ");
|
|
sl@0
|
514 |
asm("addcs r1, r1, #4 ");
|
|
sl@0
|
515 |
asm("ldrle r1, [r1] ");
|
|
sl@0
|
516 |
asm("addeq r1, r1, #4 "); // r0=this.Ptr()
|
|
sl@0
|
517 |
asm("add r3, r1, r2, lsl #1 "); // r3=this.Ptr()+aPos*2
|
|
sl@0
|
518 |
asm("sub r2, r12, r2 "); // r2=len-aPos (=newMaxLen)
|
|
sl@0
|
519 |
asm("orr r1, r2, #0x20000000 "); // r1=len-aPos + EPtr (=newLen/Type)
|
|
sl@0
|
520 |
asm("stmia r0, {r1-r3} ");
|
|
sl@0
|
521 |
__JUMP(,lr);
|
|
sl@0
|
522 |
}
|
|
sl@0
|
523 |
|
|
sl@0
|
524 |
__NAKED__ EXPORT_C TPtr16 TDes16::MidTPtr(TInt /*aPos*/,TInt /*aLength*/) const
|
|
sl@0
|
525 |
//
|
|
sl@0
|
526 |
// Extract the middle portion of the descriptor.
|
|
sl@0
|
527 |
//
|
|
sl@0
|
528 |
{
|
|
sl@0
|
529 |
// On entry r0=return store ptr, r1=this, r2=aPos, r3=aLength
|
|
sl@0
|
530 |
// Return TPtr8 ([r0]=length/type,[r0,#4]=maxLength,[r0,#8]=Ptr)
|
|
sl@0
|
531 |
asm("str r4, [sp, #-4]! "); // save r4
|
|
sl@0
|
532 |
asm("ldr r12, [r1], #4 "); // r12=this.length/type
|
|
sl@0
|
533 |
asm("mov r4, r1 ");
|
|
sl@0
|
534 |
asm("cmp r12, #0x50000000 "); // check valid descriptor type
|
|
sl@0
|
535 |
asm("bcs Des16PanicBadDesType__Fv ");
|
|
sl@0
|
536 |
asm("eor r12, r12, r12, lsr #1 ");
|
|
sl@0
|
537 |
asm("msr cpsr_flg, r12 ");
|
|
sl@0
|
538 |
asm("ldr r12, [r1, #-4] ");
|
|
sl@0
|
539 |
asm("addcs r4, r4, #4 ");
|
|
sl@0
|
540 |
asm("ldrle r4, [r4] ");
|
|
sl@0
|
541 |
asm("bic r12, r12, #0xF0000000 "); // r12=Length()
|
|
sl@0
|
542 |
asm("addeq r4, r4, #4 "); // r4=this.Ptr()
|
|
sl@0
|
543 |
asm("cmp r2, #0 "); // check aPos>=0
|
|
sl@0
|
544 |
asm("subge r12, r12, r2 "); // if so, r12=Length()-aPos
|
|
sl@0
|
545 |
asm("cmpge r12, r3 "); // and check Length()-aPos>=aLength
|
|
sl@0
|
546 |
asm("orrge r1, r3, #0x20000000 "); // if so, r0 = aLength + EPtr
|
|
sl@0
|
547 |
asm("addge r3, r4, r2, lsl #1 "); // and r2=this.Ptr()+aPos*2
|
|
sl@0
|
548 |
asm("bicge r2, r1, #0xF0000000 "); // and r1=aLength
|
|
sl@0
|
549 |
asm("stmgeia r0, {r1-r3} ");
|
|
sl@0
|
550 |
asm("ldrge r4, [sp], #4 ");
|
|
sl@0
|
551 |
__JUMP(ge,lr);
|
|
sl@0
|
552 |
asm("b Des16PanicPosOutOfRange__Fv ");
|
|
sl@0
|
553 |
}
|
|
sl@0
|
554 |
|
|
sl@0
|
555 |
__NAKED__ EXPORT_C const TUint16& TDesC16::AtC(TInt /*anIndex*/) const
|
|
sl@0
|
556 |
//
|
|
sl@0
|
557 |
// Return a reference to the character in the buffer.
|
|
sl@0
|
558 |
//
|
|
sl@0
|
559 |
{
|
|
sl@0
|
560 |
asm("ldr r2, [r0], #4 "); // r2=length/type
|
|
sl@0
|
561 |
asm("bic r3, r2, #0xF0000000 "); // r3=length
|
|
sl@0
|
562 |
asm("cmp r2, #0x50000000 ");
|
|
sl@0
|
563 |
asm("bcs " CSM_Z20Des16PanicBadDesTypev);
|
|
sl@0
|
564 |
asm("eor r2, r2, r2, lsr #1 ");
|
|
sl@0
|
565 |
asm("msr cpsr_flg, r2 ");
|
|
sl@0
|
566 |
asm("addcs r0, r0, #4 ");
|
|
sl@0
|
567 |
asm("ldrle r0, [r0] ");
|
|
sl@0
|
568 |
asm("addeq r0, r0, #4 "); // r0=this.Ptr()
|
|
sl@0
|
569 |
asm("cmp r1, #0 "); // check index>=0
|
|
sl@0
|
570 |
asm("cmpge r3, r1 "); // if so, check Length()>index
|
|
sl@0
|
571 |
asm("addgt r0, r0, r1, lsl #1 "); // return value = this.Ptr()+index*2
|
|
sl@0
|
572 |
__JUMP(gt,lr);
|
|
sl@0
|
573 |
asm("b " CSM_Z28Des16PanicDesIndexOutOfRangev);
|
|
sl@0
|
574 |
}
|
|
sl@0
|
575 |
|
|
sl@0
|
576 |
#ifdef __DES16_MACHINE_CODED_HWORD__
|
|
sl@0
|
577 |
__NAKED__ EXPORT_C TInt TDesC16::Locate(TChar /*aChar*/) const
|
|
sl@0
|
578 |
//
|
|
sl@0
|
579 |
// Locate character aChar in the descriptor.
|
|
sl@0
|
580 |
//
|
|
sl@0
|
581 |
{
|
|
sl@0
|
582 |
asm("ldr r2, [r0], #4 "); // r2=length/type
|
|
sl@0
|
583 |
asm("cmp r2, #0x50000000 ");
|
|
sl@0
|
584 |
asm("bcs Des16PanicBadDesType__Fv ");
|
|
sl@0
|
585 |
asm("bics r3, r2, #0xF0000000 "); // r3=length
|
|
sl@0
|
586 |
asm("mvneq r0, #0 "); // if length=0, not found
|
|
sl@0
|
587 |
__JUMP(eq,lr);
|
|
sl@0
|
588 |
asm("eor r2, r2, r2, lsr #1 ");
|
|
sl@0
|
589 |
asm("msr cpsr_flg, r2 ");
|
|
sl@0
|
590 |
asm("addcs r0, r0, #4 ");
|
|
sl@0
|
591 |
asm("ldrle r0, [r0] ");
|
|
sl@0
|
592 |
asm("addeq r0, r0, #4 "); // r0=this.Ptr()
|
|
sl@0
|
593 |
asm("add r3, r0, r3, lsl #1 "); // r3=ptr+length*2 (end of string pointer)
|
|
sl@0
|
594 |
asm("add r12, r0, #2 "); // r12=ptr+2
|
|
sl@0
|
595 |
asm("1: ");
|
|
sl@0
|
596 |
asm("ldrh r2, [r0], #2 "); // r2=*r0++
|
|
sl@0
|
597 |
asm("cmp r1, r2 "); // is r1=match char?
|
|
sl@0
|
598 |
asm("cmpne r0, r3 "); // if not, is r0=r3 (end pointer)
|
|
sl@0
|
599 |
asm("bne 1b ");
|
|
sl@0
|
600 |
asm("cmp r1, r2 "); // did we find char?
|
|
sl@0
|
601 |
asm("subeq r0, r0, r12 "); // if we did, return value = r0-ptr-2
|
|
sl@0
|
602 |
asm("moveq r0, r0, lsr #1 "); // divide by 2 to get index
|
|
sl@0
|
603 |
asm("mvnne r0, #0 "); // else return value =-1
|
|
sl@0
|
604 |
__JUMP(,lr);
|
|
sl@0
|
605 |
}
|
|
sl@0
|
606 |
|
|
sl@0
|
607 |
__NAKED__ EXPORT_C TInt TDesC16::LocateReverse(TChar /*aChar*/) const
|
|
sl@0
|
608 |
//
|
|
sl@0
|
609 |
// Locate character aChar in the descriptor in reverse.
|
|
sl@0
|
610 |
//
|
|
sl@0
|
611 |
{
|
|
sl@0
|
612 |
asm("ldr r2, [r0], #4 "); // r2=length/type
|
|
sl@0
|
613 |
asm("cmp r2, #0x50000000 ");
|
|
sl@0
|
614 |
asm("bcs Des16PanicBadDesType__Fv ");
|
|
sl@0
|
615 |
asm("bics r3, r2, #0xF0000000 "); // r3=length
|
|
sl@0
|
616 |
asm("mvneq r0, #0 "); // if length=0, not found
|
|
sl@0
|
617 |
__JUMP(eq,lr);
|
|
sl@0
|
618 |
asm("eor r2, r2, r2, lsr #1 ");
|
|
sl@0
|
619 |
asm("msr cpsr_flg, r2 ");
|
|
sl@0
|
620 |
asm("addcs r0, r0, #4 ");
|
|
sl@0
|
621 |
asm("ldrle r0, [r0] ");
|
|
sl@0
|
622 |
asm("addeq r0, r0, #4 "); // r0=this.Ptr()
|
|
sl@0
|
623 |
asm("add r3, r0, r3, lsl #1 "); // r3=Ptr()+Length()
|
|
sl@0
|
624 |
asm("1: ");
|
|
sl@0
|
625 |
asm("ldrh r2, [r3, #-2]! "); // r2=*--r3
|
|
sl@0
|
626 |
asm("cmp r1, r2 "); // is r1=match char?
|
|
sl@0
|
627 |
asm("cmpne r3, r0 "); // if not, have we reached beginning of string?
|
|
sl@0
|
628 |
asm("bne 1b "); // loop if neither
|
|
sl@0
|
629 |
asm("cmp r1, r2 "); // did we find match char?
|
|
sl@0
|
630 |
asm("subeq r0, r3, r0 "); // if we did, return value = (r3-r0)/2
|
|
sl@0
|
631 |
asm("moveq r0, r0, lsr #1 ");
|
|
sl@0
|
632 |
asm("mvnne r0, #0 "); // else return value =-1
|
|
sl@0
|
633 |
__JUMP(,lr);
|
|
sl@0
|
634 |
}
|
|
sl@0
|
635 |
#endif
|
|
sl@0
|
636 |
|
|
sl@0
|
637 |
#ifndef __KERNEL_MODE__
|
|
sl@0
|
638 |
__NAKED__ EXPORT_C TInt TDesC16::CompareF(const TDesC16& /*aDes*/) const
|
|
sl@0
|
639 |
//
|
|
sl@0
|
640 |
// Compare a descriptor to this descriptor folded.
|
|
sl@0
|
641 |
//
|
|
sl@0
|
642 |
{
|
|
sl@0
|
643 |
asm("ldr r12, 1f ");
|
|
sl@0
|
644 |
asm("b comparebody ");
|
|
sl@0
|
645 |
asm("1: ");
|
|
sl@0
|
646 |
asm(".word " CSM_ZN3Mem8CompareFEPKtiS0_i);
|
|
sl@0
|
647 |
}
|
|
sl@0
|
648 |
|
|
sl@0
|
649 |
__NAKED__ EXPORT_C TInt TDesC16::CompareC(const TDesC16& /*aDes*/) const
|
|
sl@0
|
650 |
//
|
|
sl@0
|
651 |
// Compare a descriptor to this descriptor collated.
|
|
sl@0
|
652 |
//
|
|
sl@0
|
653 |
{
|
|
sl@0
|
654 |
asm("ldr r12, 1f ");
|
|
sl@0
|
655 |
asm("b comparebody ");
|
|
sl@0
|
656 |
asm("1: ");
|
|
sl@0
|
657 |
asm(".word " CSM_ZN3Mem8CompareCEPKtiS0_i);
|
|
sl@0
|
658 |
}
|
|
sl@0
|
659 |
#endif
|
|
sl@0
|
660 |
|
|
sl@0
|
661 |
__NAKED__ EXPORT_C TInt TDesC16::Compare(const TDesC16& /*aDes*/) const
|
|
sl@0
|
662 |
//
|
|
sl@0
|
663 |
// Compare a descriptor to this descriptor.
|
|
sl@0
|
664 |
//
|
|
sl@0
|
665 |
{
|
|
sl@0
|
666 |
asm("ldr r12, 1f ");
|
|
sl@0
|
667 |
asm("comparebody: ");
|
|
sl@0
|
668 |
asm("mov r2, r1 "); // r2=&aDes
|
|
sl@0
|
669 |
asm("ldr r3, [r0], #4 "); // r3=this.length/type
|
|
sl@0
|
670 |
asm("cmp r3, #0x50000000 ");
|
|
sl@0
|
671 |
asm("bcs " CSM_Z20Des16PanicBadDesTypev);
|
|
sl@0
|
672 |
asm("bic r1, r3, #0xF0000000 "); // r1=this.Length()
|
|
sl@0
|
673 |
asm("eor r3, r3, r3, lsr #1 ");
|
|
sl@0
|
674 |
asm("msr cpsr_flg, r3 ");
|
|
sl@0
|
675 |
asm("addcs r0, r0, #4 ");
|
|
sl@0
|
676 |
asm("ldrle r0, [r0] ");
|
|
sl@0
|
677 |
asm("addeq r0, r0, #4 "); // r0=this.Ptr()
|
|
sl@0
|
678 |
asm("ldr r3, [r2], #4 "); // r3=aDes.length/type
|
|
sl@0
|
679 |
asm("cmp r3, #0x50000000 ");
|
|
sl@0
|
680 |
asm("bcs " CSM_Z20Des16PanicBadDesTypev);
|
|
sl@0
|
681 |
asm("eor r3, r3, r3, lsr #1 ");
|
|
sl@0
|
682 |
asm("msr cpsr_flg, r3 ");
|
|
sl@0
|
683 |
asm("ldr r3, [r2, #-4] ");
|
|
sl@0
|
684 |
asm("bic r3, r3, #0xF0000000 "); // r3=aDes.Length()
|
|
sl@0
|
685 |
asm("addcs r2, r2, #4 ");
|
|
sl@0
|
686 |
asm("ldrle r2, [r2] ");
|
|
sl@0
|
687 |
asm("addeq r2, r2, #4 "); // r2=aDes.Ptr()
|
|
sl@0
|
688 |
#ifdef __KERNEL_MODE__
|
|
sl@0
|
689 |
asm("add r1, r1, r1 ");
|
|
sl@0
|
690 |
asm("add r3, r3, r3 ");
|
|
sl@0
|
691 |
#endif
|
|
sl@0
|
692 |
__JUMP(,r12);
|
|
sl@0
|
693 |
|
|
sl@0
|
694 |
asm("1: ");
|
|
sl@0
|
695 |
#ifdef __KERNEL_MODE__
|
|
sl@0
|
696 |
asm(".word memcompare ");
|
|
sl@0
|
697 |
#else
|
|
sl@0
|
698 |
asm(".word " CSM_ZN3Mem7CompareEPKtiS0_i);
|
|
sl@0
|
699 |
#endif
|
|
sl@0
|
700 |
}
|
|
sl@0
|
701 |
#endif // __DES16_MACHINE_CODED__
|
|
sl@0
|
702 |
|
|
sl@0
|
703 |
|
|
sl@0
|
704 |
#if defined(__DES16_MACHINE_CODED__) && !defined(__EABI__)
|
|
sl@0
|
705 |
__NAKED__ EXPORT_C TPtrC16 TDesC16::Left(TInt /*aLength*/) const
|
|
sl@0
|
706 |
//
|
|
sl@0
|
707 |
// Extract the left portion of the descriptor.
|
|
sl@0
|
708 |
//
|
|
sl@0
|
709 |
{
|
|
sl@0
|
710 |
// On entry r0=this, r1=aLength
|
|
sl@0
|
711 |
// Return TPtrC16 in r0,r1
|
|
sl@0
|
712 |
asm("ldr r3, [r0], #4 "); // r3=this.length/type
|
|
sl@0
|
713 |
asm("bic r12, r3, #0xF0000000 "); // r12=this.Length()
|
|
sl@0
|
714 |
asm("cmp r1, #0 "); // check aLength>=0
|
|
sl@0
|
715 |
asm("blt " CSM_Z23Des16PanicPosOutOfRangev); // if not, panic
|
|
sl@0
|
716 |
asm("cmp r1, r12 "); // else limit aLength to Length()
|
|
sl@0
|
717 |
asm("movgt r1, r12 ");
|
|
sl@0
|
718 |
asm("cmp r3, #0x50000000 ");
|
|
sl@0
|
719 |
asm("bcs " CSM_Z20Des16PanicBadDesTypev);
|
|
sl@0
|
720 |
asm("eor r3, r3, r3, lsr #1 ");
|
|
sl@0
|
721 |
asm("msr cpsr_flg, r3 ");
|
|
sl@0
|
722 |
asm("addcs r0, r0, #4 ");
|
|
sl@0
|
723 |
asm("ldrle r0, [r0] ");
|
|
sl@0
|
724 |
asm("addeq r0, r0, #4 "); // r0=this.Ptr()
|
|
sl@0
|
725 |
asm("orr r2, r1, #0x10000000 "); // r2=aLength + EPtrC
|
|
sl@0
|
726 |
asm("mov r1, r0 "); // r1=result ptr
|
|
sl@0
|
727 |
asm("mov r0, r2 "); // r0=result type/length
|
|
sl@0
|
728 |
__JUMP(,lr);
|
|
sl@0
|
729 |
}
|
|
sl@0
|
730 |
|
|
sl@0
|
731 |
__NAKED__ EXPORT_C TPtrC16 TDesC16::Right(TInt /*aLength*/) const
|
|
sl@0
|
732 |
//
|
|
sl@0
|
733 |
// Extract the right portion of the descriptor.
|
|
sl@0
|
734 |
//
|
|
sl@0
|
735 |
{
|
|
sl@0
|
736 |
// On entry r0=this, r1=aLength
|
|
sl@0
|
737 |
// Return TPtrC16 in r0,r1
|
|
sl@0
|
738 |
asm("ldr r3, [r0], #4 "); // r3=this.length/type
|
|
sl@0
|
739 |
asm("bic r12, r3, #0xF0000000 "); // r12=this.Length()
|
|
sl@0
|
740 |
asm("cmp r1, #0 "); // check aLength>=0
|
|
sl@0
|
741 |
asm("blt " CSM_Z23Des16PanicPosOutOfRangev); // if not, panic
|
|
sl@0
|
742 |
asm("cmp r1, r12 "); // else limit aLength to Length()
|
|
sl@0
|
743 |
asm("movgt r1, r12 ");
|
|
sl@0
|
744 |
asm("cmp r3, #0x50000000 ");
|
|
sl@0
|
745 |
asm("bcs " CSM_Z20Des16PanicBadDesTypev);
|
|
sl@0
|
746 |
asm("eor r3, r3, r3, lsr #1 ");
|
|
sl@0
|
747 |
asm("msr cpsr_flg, r3 ");
|
|
sl@0
|
748 |
asm("addcs r0, r0, #4 ");
|
|
sl@0
|
749 |
asm("ldrle r0, [r0] ");
|
|
sl@0
|
750 |
asm("addeq r0, r0, #4 "); // r0=this.Ptr()
|
|
sl@0
|
751 |
asm("add r3, r0, r12, lsl #1 "); // r3=this.Ptr()+len*2
|
|
sl@0
|
752 |
asm("orr r0, r1, #0x10000000 "); // r0=aLength + EPtrC
|
|
sl@0
|
753 |
asm("sub r1, r3, r1, lsl #1 "); // r1=Ptr()+len*2-aLength*2
|
|
sl@0
|
754 |
__JUMP(,lr);
|
|
sl@0
|
755 |
}
|
|
sl@0
|
756 |
|
|
sl@0
|
757 |
__NAKED__ EXPORT_C TPtrC16 TDesC16::Mid(TInt /*aPos*/) const
|
|
sl@0
|
758 |
//
|
|
sl@0
|
759 |
// Extract the middle portion of the descriptor.
|
|
sl@0
|
760 |
//
|
|
sl@0
|
761 |
{
|
|
sl@0
|
762 |
// On entry r0=this, r1=aPos
|
|
sl@0
|
763 |
// Return TPtrC16 in r0,r1
|
|
sl@0
|
764 |
asm("ldr r3, [r0], #4 "); // r3=this.length/type
|
|
sl@0
|
765 |
asm("bic r12, r3, #0xF0000000 "); // r12=this.Length()
|
|
sl@0
|
766 |
asm("cmp r1, #0 "); // check aPos>=0
|
|
sl@0
|
767 |
asm("cmpge r12, r1 "); // if so check Length()>=aPos
|
|
sl@0
|
768 |
asm("blt " CSM_Z23Des16PanicPosOutOfRangev);
|
|
sl@0
|
769 |
asm("cmp r3, #0x50000000 ");
|
|
sl@0
|
770 |
asm("bcs " CSM_Z20Des16PanicBadDesTypev);
|
|
sl@0
|
771 |
asm("eor r3, r3, r3, lsr #1 ");
|
|
sl@0
|
772 |
asm("msr cpsr_flg, r3 ");
|
|
sl@0
|
773 |
asm("addcs r0, r0, #4 ");
|
|
sl@0
|
774 |
asm("ldrle r0, [r0] ");
|
|
sl@0
|
775 |
asm("addeq r0, r0, #4 "); // r0=this.Ptr()
|
|
sl@0
|
776 |
asm("sub r2, r12, r1 "); // r2=len-aPos
|
|
sl@0
|
777 |
asm("add r1, r0, r1, lsl #1 "); // r1=this.Ptr()+aPos*2
|
|
sl@0
|
778 |
asm("orr r0, r2, #0x10000000 "); // r0=result length + EPtrC
|
|
sl@0
|
779 |
__JUMP(,lr);
|
|
sl@0
|
780 |
}
|
|
sl@0
|
781 |
|
|
sl@0
|
782 |
__NAKED__ EXPORT_C TPtrC16 TDesC16::Mid(TInt /*aPos*/,TInt /*aLength*/) const
|
|
sl@0
|
783 |
//
|
|
sl@0
|
784 |
// Extract the middle portion of the descriptor.
|
|
sl@0
|
785 |
//
|
|
sl@0
|
786 |
{
|
|
sl@0
|
787 |
// On entry r0=this, r1=aPos, r2=aLength
|
|
sl@0
|
788 |
// Return TPtrC16 in r0,r1
|
|
sl@0
|
789 |
asm("ldr r12, [r0], #4 "); // r12=this.length/type
|
|
sl@0
|
790 |
asm("cmp r12, #0x50000000 "); // check valid descriptor type
|
|
sl@0
|
791 |
asm("bcs " CSM_Z20Des16PanicBadDesTypev);
|
|
sl@0
|
792 |
asm("eor r12, r12, r12, lsr #1 ");
|
|
sl@0
|
793 |
asm("msr cpsr_flg, r12 ");
|
|
sl@0
|
794 |
asm("ldr r12, [r0, #-4] ");
|
|
sl@0
|
795 |
asm("bic r12, r12, #0xF0000000 "); // r12=Length()
|
|
sl@0
|
796 |
asm("addcs r0, r0, #4 ");
|
|
sl@0
|
797 |
asm("ldrle r0, [r0] ");
|
|
sl@0
|
798 |
asm("addeq r0, r0, #4 "); // r0=this.Ptr()
|
|
sl@0
|
799 |
asm("cmp r1, #0 "); // check aPos>=0
|
|
sl@0
|
800 |
asm("subge r12, r12, r1 "); // if so, r12=Length()-aPos
|
|
sl@0
|
801 |
asm("cmpge r12, r2 "); // and check Length()-aPos>=aLength
|
|
sl@0
|
802 |
asm("addge r1, r0, r1, lsl #1 "); // if so, r1=Ptr()+aPos*2
|
|
sl@0
|
803 |
asm("orrge r0, r2, #0x10000000 "); // and r0 = aLength + EPtrC
|
|
sl@0
|
804 |
__JUMP(ge,lr);
|
|
sl@0
|
805 |
asm("b " CSM_Z23Des16PanicPosOutOfRangev);
|
|
sl@0
|
806 |
}
|
|
sl@0
|
807 |
#endif // defined(__DES16_MACHINE_CODED__) && !defined(__EABI__)
|
|
sl@0
|
808 |
|
|
sl@0
|
809 |
|
|
sl@0
|
810 |
#ifdef __DES16_MACHINE_CODED__
|
|
sl@0
|
811 |
|
|
sl@0
|
812 |
// Here are the __EABI__ compliant versions of the above
|
|
sl@0
|
813 |
#ifdef __EABI__
|
|
sl@0
|
814 |
__NAKED__ EXPORT_C TPtrC16 TDesC16::Left(TInt /*aLength*/) const
|
|
sl@0
|
815 |
//
|
|
sl@0
|
816 |
// Extract the left portion of the descriptor.
|
|
sl@0
|
817 |
//
|
|
sl@0
|
818 |
{
|
|
sl@0
|
819 |
// On entry r0=return store ptr, r1=this, r2=aLength
|
|
sl@0
|
820 |
// Return TPtr16 ([r0]=length/type,[r0,#4]=Ptr)
|
|
sl@0
|
821 |
asm("ldr r3, [r1], #4 "); // r3=this.length/type
|
|
sl@0
|
822 |
asm("cmp r2, #0 "); // check aLength>=0
|
|
sl@0
|
823 |
asm("blt Des16PanicPosOutOfRange__Fv "); // if not, panic
|
|
sl@0
|
824 |
asm("bic r12, r3, #0xF0000000 "); // r12=this.Length()
|
|
sl@0
|
825 |
asm("cmp r2, r12 "); // else limit aLength to Length()
|
|
sl@0
|
826 |
asm("movgt r2, r12 ");
|
|
sl@0
|
827 |
asm("cmp r3, #0x50000000 ");
|
|
sl@0
|
828 |
asm("bcs Des16PanicBadDesType__Fv ");
|
|
sl@0
|
829 |
asm("eor r3, r3, r3, lsr #1 ");
|
|
sl@0
|
830 |
asm("msr cpsr_flg, r3 ");
|
|
sl@0
|
831 |
asm("addcs r1, r1, #4 ");
|
|
sl@0
|
832 |
asm("ldrle r1, [r1] ");
|
|
sl@0
|
833 |
asm("addeq r1, r1, #4 "); // r1=this.Ptr()
|
|
sl@0
|
834 |
asm("mov r3, r1"); // r3=this.Ptr()
|
|
sl@0
|
835 |
asm("orr r1, r2, #0x10000000 "); // r1=aLength + EPtrC
|
|
sl@0
|
836 |
asm("stmia r0, {r1,r3} ");
|
|
sl@0
|
837 |
__JUMP(,lr);
|
|
sl@0
|
838 |
}
|
|
sl@0
|
839 |
|
|
sl@0
|
840 |
__NAKED__ EXPORT_C TPtrC16 TDesC16::Right(TInt /*aLength*/) const
|
|
sl@0
|
841 |
//
|
|
sl@0
|
842 |
// Extract the right portion of the descriptor.
|
|
sl@0
|
843 |
//
|
|
sl@0
|
844 |
{
|
|
sl@0
|
845 |
// On entry r0=return store ptr, r1=this, r2=aLength
|
|
sl@0
|
846 |
// Return TPtr16 ([r0]=length/type,[r0,#4]=Ptr)
|
|
sl@0
|
847 |
asm("ldr r3, [r1], #4 "); // r3=this.length/type
|
|
sl@0
|
848 |
asm("cmp r2, #0 "); // check aLength>=0
|
|
sl@0
|
849 |
asm("blt Des16PanicPosOutOfRange__Fv "); // if not, panic
|
|
sl@0
|
850 |
asm("bic r12, r3, #0xF0000000 "); // r12=this.Length()
|
|
sl@0
|
851 |
asm("cmp r2, r12 "); // else limit aLength to Length()
|
|
sl@0
|
852 |
asm("movgt r2, r12 ");
|
|
sl@0
|
853 |
asm("cmp r3, #0x50000000 ");
|
|
sl@0
|
854 |
asm("bcs Des16PanicBadDesType__Fv ");
|
|
sl@0
|
855 |
asm("eor r3, r3, r3, lsr #1 ");
|
|
sl@0
|
856 |
asm("msr cpsr_flg, r3 ");
|
|
sl@0
|
857 |
asm("addcs r1, r1, #4 ");
|
|
sl@0
|
858 |
asm("ldrle r1, [r1] ");
|
|
sl@0
|
859 |
asm("addeq r1, r1, #4 "); // r1=this.Ptr()
|
|
sl@0
|
860 |
asm("add r3, r1, r12, lsl #1 "); // r3=this.Ptr()+len*2
|
|
sl@0
|
861 |
asm("orr r1, r2, #0x10000000 "); // r1=aLength + EPtrC
|
|
sl@0
|
862 |
asm("sub r3, r3, r2, lsl #1 "); // r2=Ptr()+len*2-aLength*2
|
|
sl@0
|
863 |
asm("stmia r0, {r1,r3} ");
|
|
sl@0
|
864 |
__JUMP(,lr);
|
|
sl@0
|
865 |
}
|
|
sl@0
|
866 |
|
|
sl@0
|
867 |
__NAKED__ EXPORT_C TPtrC16 TDesC16::Mid(TInt /*aPos*/) const
|
|
sl@0
|
868 |
//
|
|
sl@0
|
869 |
// Extract the middle portion of the descriptor.
|
|
sl@0
|
870 |
//
|
|
sl@0
|
871 |
{
|
|
sl@0
|
872 |
// On entry r0=return store ptr, r1=this, r2=aPos
|
|
sl@0
|
873 |
// Return TPtr16 ([r0]=length/type,[r0,#4]=Ptr)
|
|
sl@0
|
874 |
asm("ldr r3, [r1], #4 "); // r3=this.length/type
|
|
sl@0
|
875 |
asm("bic r12, r3, #0xF0000000 "); // r12=this.Length()
|
|
sl@0
|
876 |
asm("cmp r2, #0 "); // check aPos>=0
|
|
sl@0
|
877 |
asm("cmpge r12, r2 "); // if so check Length()>=aPos
|
|
sl@0
|
878 |
asm("blt Des16PanicPosOutOfRange__Fv ");
|
|
sl@0
|
879 |
asm("cmp r3, #0x50000000 ");
|
|
sl@0
|
880 |
asm("bcs Des16PanicBadDesType__Fv ");
|
|
sl@0
|
881 |
asm("eor r3, r3, r3, lsr #1 ");
|
|
sl@0
|
882 |
asm("msr cpsr_flg, r3 ");
|
|
sl@0
|
883 |
asm("addcs r1, r1, #4 ");
|
|
sl@0
|
884 |
asm("ldrle r1, [r1] ");
|
|
sl@0
|
885 |
asm("addeq r1, r1, #4 "); // r3=this.Ptr()
|
|
sl@0
|
886 |
asm("add r3, r1, r2, lsl #1 "); // r3=this.Ptr()+aPos*2
|
|
sl@0
|
887 |
asm("sub r2, r12, r2 "); // r2=len-aPos (=newMaxLen)
|
|
sl@0
|
888 |
asm("orr r1, r2, #0x10000000 "); // r1=len-aPos + EPtrC (=newLen/Type)
|
|
sl@0
|
889 |
asm("stmia r0, {r1,r3} ");
|
|
sl@0
|
890 |
__JUMP(,lr);
|
|
sl@0
|
891 |
}
|
|
sl@0
|
892 |
|
|
sl@0
|
893 |
__NAKED__ EXPORT_C TPtrC16 TDesC16::Mid(TInt /*aPos*/,TInt /*aLength*/) const
|
|
sl@0
|
894 |
//
|
|
sl@0
|
895 |
// Extract the middle portion of the descriptor.
|
|
sl@0
|
896 |
//
|
|
sl@0
|
897 |
{
|
|
sl@0
|
898 |
// On entry r0=return store ptr, r1=this, r2=aPos, r3=aLength
|
|
sl@0
|
899 |
// Return TPtr16 ([r0]=length/type,[r0,#4]=Ptr)
|
|
sl@0
|
900 |
asm("ldr r12, [r1], #4 "); // r12=this.length/type
|
|
sl@0
|
901 |
asm("cmp r12, #0x50000000 "); // check valid descriptor type
|
|
sl@0
|
902 |
asm("bcs Des16PanicBadDesType__Fv ");
|
|
sl@0
|
903 |
asm("eor r12, r12, r12, lsr #1 ");
|
|
sl@0
|
904 |
asm("msr cpsr_flg, r12 ");
|
|
sl@0
|
905 |
asm("ldr r12, [r1, #-4] ");
|
|
sl@0
|
906 |
asm("addcs r1, r1, #4 ");
|
|
sl@0
|
907 |
asm("ldrle r1, [r1] ");
|
|
sl@0
|
908 |
asm("bic r12, r12, #0xF0000000 "); // r12=Length()
|
|
sl@0
|
909 |
asm("addeq r1, r1, #4 "); // r1=this.Ptr()
|
|
sl@0
|
910 |
asm("cmp r2, #0 "); // check aPos>=0
|
|
sl@0
|
911 |
asm("subge r12, r12, r2 "); // if so, r12=Length()-aPos
|
|
sl@0
|
912 |
asm("cmpge r12, r3 "); // and check Length()-aPos>=aLength
|
|
sl@0
|
913 |
asm("addge r2, r1, r2, lsl #1 "); // if so r2=this.Ptr()+aPos*2
|
|
sl@0
|
914 |
asm("orrge r1, r3, #0x10000000 "); // and r1 = aLength + EPtrC
|
|
sl@0
|
915 |
asm("stmgeia r0, {r1,r2} ");
|
|
sl@0
|
916 |
__JUMP(ge,lr);
|
|
sl@0
|
917 |
asm("b Des16PanicPosOutOfRange__Fv ");
|
|
sl@0
|
918 |
}
|
|
sl@0
|
919 |
#endif // __EABI__
|
|
sl@0
|
920 |
|
|
sl@0
|
921 |
|
|
sl@0
|
922 |
__NAKED__ EXPORT_C void TDes16::Zero()
|
|
sl@0
|
923 |
//
|
|
sl@0
|
924 |
// Zero the buffer.
|
|
sl@0
|
925 |
//
|
|
sl@0
|
926 |
{
|
|
sl@0
|
927 |
asm("ldr r1, [r0] "); // r1=length/type
|
|
sl@0
|
928 |
asm("and r1, r1, #0xF0000000 "); // r1=type field, zero length
|
|
sl@0
|
929 |
asm("cmp r1, #0x40000000 "); // check for EBufCPtr
|
|
sl@0
|
930 |
asm("str r1, [r0] "); // store zero length
|
|
sl@0
|
931 |
__JUMP(ne,lr);
|
|
sl@0
|
932 |
asm("ldr r2, [r0, #8] "); // r2 = pointer to TBufCBase
|
|
sl@0
|
933 |
asm("mov r1, #0 ");
|
|
sl@0
|
934 |
asm("str r1, [r2] "); // update length of TBufCBase
|
|
sl@0
|
935 |
__JUMP(,lr);
|
|
sl@0
|
936 |
}
|
|
sl@0
|
937 |
|
|
sl@0
|
938 |
#ifdef __DES16_MACHINE_CODED_HWORD__
|
|
sl@0
|
939 |
#ifndef __KERNEL_MODE__
|
|
sl@0
|
940 |
__NAKED__ EXPORT_C void TDes16::ZeroTerminate()
|
|
sl@0
|
941 |
//
|
|
sl@0
|
942 |
// Zero terminate at Length().
|
|
sl@0
|
943 |
//
|
|
sl@0
|
944 |
{
|
|
sl@0
|
945 |
// Fall though to PtrZ below...
|
|
sl@0
|
946 |
}
|
|
sl@0
|
947 |
|
|
sl@0
|
948 |
__NAKED__ EXPORT_C const TUint16* TDes16::PtrZ()
|
|
sl@0
|
949 |
//
|
|
sl@0
|
950 |
// Return a pointer to a 0 terminated string.
|
|
sl@0
|
951 |
//
|
|
sl@0
|
952 |
{
|
|
sl@0
|
953 |
asm("ldmia r0, {r1,r2} "); // r1=length/type, r2=maxlength
|
|
sl@0
|
954 |
asm("bic r3, r1, #0xF0000000 "); // r3=Length();
|
|
sl@0
|
955 |
asm("cmp r3, r2 "); // check Length()<MaxLength()
|
|
sl@0
|
956 |
asm("bge Des16PanicDesOverflow__Fv ");
|
|
sl@0
|
957 |
asm("cmp r1, #0x50000000 ");
|
|
sl@0
|
958 |
asm("bcs Des16PanicBadDesType__Fv ");
|
|
sl@0
|
959 |
asm("eor r1, r1, r1, lsr #1 ");
|
|
sl@0
|
960 |
asm("msr cpsr_flg, r1 ");
|
|
sl@0
|
961 |
asm("add r0, r0, #4 ");
|
|
sl@0
|
962 |
asm("addcs r0, r0, #4 ");
|
|
sl@0
|
963 |
asm("ldrle r0, [r0] ");
|
|
sl@0
|
964 |
asm("addeq r0, r0, #4 "); // r0=Ptr()
|
|
sl@0
|
965 |
asm("add r1, r0, r3, lsl #1 "); // r1=Ptr()+Length()
|
|
sl@0
|
966 |
asm("mov r2, #0 ");
|
|
sl@0
|
967 |
asm("strh r2, [r1] "); // Ptr()[Length()]=0;
|
|
sl@0
|
968 |
__JUMP(,lr);
|
|
sl@0
|
969 |
}
|
|
sl@0
|
970 |
#endif // __KERNEL_MODE__
|
|
sl@0
|
971 |
|
|
sl@0
|
972 |
__NAKED__ EXPORT_C void TDes16::Append(TChar /*aChar*/)
|
|
sl@0
|
973 |
//
|
|
sl@0
|
974 |
// Add a character at the end of the string.
|
|
sl@0
|
975 |
//
|
|
sl@0
|
976 |
{
|
|
sl@0
|
977 |
asm("ldmia r0, {r2,r3} "); // r2=length/type, r3=maxlength
|
|
sl@0
|
978 |
asm("bic r12, r2, #0xF0000000 "); // r12=Length();
|
|
sl@0
|
979 |
asm("cmp r12, r3 "); // check Length()<MaxLength()
|
|
sl@0
|
980 |
asm("bge Des16PanicDesOverflow__Fv ");
|
|
sl@0
|
981 |
asm("cmp r2, #0x50000000 ");
|
|
sl@0
|
982 |
asm("bcs Des16PanicBadDesType__Fv ");
|
|
sl@0
|
983 |
asm("add r2, r2, #1 "); // increment length by 1
|
|
sl@0
|
984 |
asm("str r2, [r0] "); // store new length
|
|
sl@0
|
985 |
asm("eor r2, r2, r2, lsr #1 ");
|
|
sl@0
|
986 |
asm("msr cpsr_flg, r2 ");
|
|
sl@0
|
987 |
asm("add r2, r0, #4 "); // r2=this+4
|
|
sl@0
|
988 |
asm("addcs r2, r2, #4 ");
|
|
sl@0
|
989 |
asm("ldrle r2, [r2] ");
|
|
sl@0
|
990 |
asm("addeq r3, r12, #1 "); // if EBufCPtr, r3=Length()+1
|
|
sl@0
|
991 |
asm("streq r3, [r2], #4 "); // and update length of TBufCBase, r2=Ptr()
|
|
sl@0
|
992 |
asm("add r2, r2, r12, lsl #1 "); // r2=Ptr()+Length()
|
|
sl@0
|
993 |
asm("strh r1, [r2] "); // Ptr()[Length()]=aChar;
|
|
sl@0
|
994 |
__JUMP(,lr);
|
|
sl@0
|
995 |
}
|
|
sl@0
|
996 |
#endif
|
|
sl@0
|
997 |
|
|
sl@0
|
998 |
__NAKED__ EXPORT_C void TDes16::Append(const TDesC16& /*aDes*/)
|
|
sl@0
|
999 |
//
|
|
sl@0
|
1000 |
// Append a descriptor to this descriptor.
|
|
sl@0
|
1001 |
//
|
|
sl@0
|
1002 |
{
|
|
sl@0
|
1003 |
asm("ldr r3, [r1], #4 "); // r3=aDes.length/type
|
|
sl@0
|
1004 |
asm("cmp r3, #0x50000000 ");
|
|
sl@0
|
1005 |
asm("bcs " CSM_Z20Des16PanicBadDesTypev);
|
|
sl@0
|
1006 |
asm("bics r2, r3, #0xF0000000 "); // r2=aDes.Length()
|
|
sl@0
|
1007 |
__JUMP(eq,lr);
|
|
sl@0
|
1008 |
asm("eor r3, r3, r3, lsr #1 ");
|
|
sl@0
|
1009 |
asm("msr cpsr_flg, r3 ");
|
|
sl@0
|
1010 |
asm("addcs r1, r1, #4 ");
|
|
sl@0
|
1011 |
asm("ldrle r1, [r1] ");
|
|
sl@0
|
1012 |
asm("addeq r1, r1, #4 "); // r1=aDes.Ptr()
|
|
sl@0
|
1013 |
asm("b appendbody "); // use following routine for rest of job
|
|
sl@0
|
1014 |
}
|
|
sl@0
|
1015 |
|
|
sl@0
|
1016 |
__NAKED__ EXPORT_C void TDes16::Append(const TUint16* /*aBuf*/,TInt /*aLength*/)
|
|
sl@0
|
1017 |
//
|
|
sl@0
|
1018 |
// Append aLength from aBuf characters to the descriptor.
|
|
sl@0
|
1019 |
//
|
|
sl@0
|
1020 |
{
|
|
sl@0
|
1021 |
asm("cmp r2, #0 "); // check aLength>=0
|
|
sl@0
|
1022 |
__JUMP(eq,lr);
|
|
sl@0
|
1023 |
asm("blt " CSM_Z24Des16PanicLengthNegativev);
|
|
sl@0
|
1024 |
asm("appendbody: ");
|
|
sl@0
|
1025 |
asm("ldmia r0, {r3,r12} "); // r3=type/length, r12=maxlength
|
|
sl@0
|
1026 |
asm("cmp r3, #0x50000000 ");
|
|
sl@0
|
1027 |
asm("bcs " CSM_Z20Des16PanicBadDesTypev);
|
|
sl@0
|
1028 |
asm("bic r3, r3, #0xF0000000 "); // r3=Length()
|
|
sl@0
|
1029 |
asm("sub r12, r12, r3 "); // r12=MaxLength-Length
|
|
sl@0
|
1030 |
asm("cmp r2, r12 "); // check aLength<=(MaxLength-Length)
|
|
sl@0
|
1031 |
asm("bgt " CSM_Z21Des16PanicDesOverflowv);
|
|
sl@0
|
1032 |
asm("ldr r12, [r0] ");
|
|
sl@0
|
1033 |
asm("add r12, r12, r2 "); // new length/type field
|
|
sl@0
|
1034 |
asm("str r12, [r0], #4 "); // store it
|
|
sl@0
|
1035 |
asm("eor r12, r12, r12, lsr #1 ");
|
|
sl@0
|
1036 |
asm("msr cpsr_flg, r12 ");
|
|
sl@0
|
1037 |
asm("addcs r0, r0, #4 ");
|
|
sl@0
|
1038 |
asm("ldrle r0, [r0] ");
|
|
sl@0
|
1039 |
asm("ldreq r12, [r0] "); // fetch length from TBufCBase
|
|
sl@0
|
1040 |
asm("addeq r12, r12, r2 "); // add aLength
|
|
sl@0
|
1041 |
asm("streq r12, [r0], #4 "); // update length of TBufCBase, r0=Ptr()
|
|
sl@0
|
1042 |
asm("add r0, r0, r3, lsl #1 "); // r0=Ptr()+Length()*2
|
|
sl@0
|
1043 |
asm("add r2, r2, r2 "); // r2=aLength*2
|
|
sl@0
|
1044 |
asm("b memmove "); // call memmove
|
|
sl@0
|
1045 |
}
|
|
sl@0
|
1046 |
|
|
sl@0
|
1047 |
__NAKED__ EXPORT_C void TDes16::FillZ()
|
|
sl@0
|
1048 |
//
|
|
sl@0
|
1049 |
// Fill the descriptor with 0.
|
|
sl@0
|
1050 |
//
|
|
sl@0
|
1051 |
{
|
|
sl@0
|
1052 |
asm("ldr r2, [r0] "); // r2=length/type
|
|
sl@0
|
1053 |
asm("cmp r2, #0x50000000 ");
|
|
sl@0
|
1054 |
asm("bcs " CSM_Z20Des16PanicBadDesTypev);
|
|
sl@0
|
1055 |
asm("bic r1, r2, #0xF0000000 "); // r1=Length()
|
|
sl@0
|
1056 |
asm("eor r2, r2, r2, lsr #1 ");
|
|
sl@0
|
1057 |
asm("msr cpsr_flg, r2 ");
|
|
sl@0
|
1058 |
asm("add r0, r0, #4 ");
|
|
sl@0
|
1059 |
asm("addcs r0, r0, #4 ");
|
|
sl@0
|
1060 |
asm("ldrle r0, [r0] ");
|
|
sl@0
|
1061 |
asm("addeq r0, r0, #4 "); // r0=Ptr()
|
|
sl@0
|
1062 |
asm("add r1, r1, r1 "); // r1=2*Length()
|
|
sl@0
|
1063 |
asm("b memclr "); // call memclr
|
|
sl@0
|
1064 |
}
|
|
sl@0
|
1065 |
|
|
sl@0
|
1066 |
#ifdef __DES16_MACHINE_CODED_HWORD__
|
|
sl@0
|
1067 |
__NAKED__ EXPORT_C void TDes16::Fill(TChar /*aChar*/)
|
|
sl@0
|
1068 |
//
|
|
sl@0
|
1069 |
// Fill the descriptor with aChar.
|
|
sl@0
|
1070 |
//
|
|
sl@0
|
1071 |
{
|
|
sl@0
|
1072 |
// on entry r0=this, r1=fill char
|
|
sl@0
|
1073 |
asm("ldr r3, [r0] "); // r3=length/type
|
|
sl@0
|
1074 |
asm("cmp r3, #0x50000000 ");
|
|
sl@0
|
1075 |
asm("bcs Des16PanicBadDesType__Fv ");
|
|
sl@0
|
1076 |
asm("bics r2, r3, #0xF0000000 "); // r2=Length()
|
|
sl@0
|
1077 |
__JUMP(eq,lr); // if length is zero, finished
|
|
sl@0
|
1078 |
asm("stmfd sp!, {r0,lr} "); // save registers for function call
|
|
sl@0
|
1079 |
asm("eor r3, r3, r3, lsr #1 ");
|
|
sl@0
|
1080 |
asm("msr cpsr_flg, r3 ");
|
|
sl@0
|
1081 |
asm("add r0, r0, #4 ");
|
|
sl@0
|
1082 |
asm("addcs r0, r0, #4 ");
|
|
sl@0
|
1083 |
asm("ldrle r0, [r0] ");
|
|
sl@0
|
1084 |
asm("addeq r0, r0, #4 "); // r0=Ptr()
|
|
sl@0
|
1085 |
asm("tst r0, #2 "); // check alignment of Ptr()
|
|
sl@0
|
1086 |
asm("strneh r1, [r0], #2 "); // if not aligned, fill first location
|
|
sl@0
|
1087 |
asm("subne r2, r2, #1 "); // and decrement length
|
|
sl@0
|
1088 |
asm("mov r1, r1, lsl #16 ");
|
|
sl@0
|
1089 |
asm("orr r1, r1, r1, lsr #16 "); // r1=fill char repeated
|
|
sl@0
|
1090 |
asm("mov r3, r1 ");
|
|
sl@0
|
1091 |
asm("mov r12, r1 ");
|
|
sl@0
|
1092 |
asm("mov r14, r1 "); // r1=r3=r12=r14=fill char repeated
|
|
sl@0
|
1093 |
asm("b 2f "); // branch to check for 16-char blocks
|
|
sl@0
|
1094 |
asm("1: ");
|
|
sl@0
|
1095 |
asm("stmia r0!, {r1,r3,r12,r14} "); // fill a block of 16 bytes
|
|
sl@0
|
1096 |
asm("stmia r0!, {r1,r3,r12,r14} "); // fill a block of 16 bytes
|
|
sl@0
|
1097 |
asm("2: ");
|
|
sl@0
|
1098 |
asm("subs r2, r2, #16 "); // check for more blocks of 16
|
|
sl@0
|
1099 |
asm("bge 1b "); // loop if more
|
|
sl@0
|
1100 |
asm("add r2, r2, #16 "); // now r1=number of chars remaining, 0<=r1<16
|
|
sl@0
|
1101 |
asm("mov r2, r2, lsl #28 "); // move into bits 28-31
|
|
sl@0
|
1102 |
asm("msr cpsr_flg, r2 "); // and into NZCV flags
|
|
sl@0
|
1103 |
asm("stmmiia r0!, {r1,r3,r12,r14} "); // fill a block of 16 bytes if needed
|
|
sl@0
|
1104 |
asm("stmeqia r0!, {r1,r3} "); // fill a block of 8 bytes if needed
|
|
sl@0
|
1105 |
asm("stmcsia r0!, {r1} "); // fill a block of 4 bytes if needed
|
|
sl@0
|
1106 |
asm("strvsh r1, [r0], #2 "); // fill last char if needed
|
|
sl@0
|
1107 |
__POPRET("r0,");
|
|
sl@0
|
1108 |
}
|
|
sl@0
|
1109 |
#endif
|
|
sl@0
|
1110 |
|
|
sl@0
|
1111 |
#endif // __DES16_MACHINE_CODED__
|
|
sl@0
|
1112 |
|
|
sl@0
|
1113 |
|
|
sl@0
|
1114 |
|
|
sl@0
|
1115 |
|