// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
// All rights reserved.
// This component and the accompanying materials are made available
// under the terms of the License "Eclipse Public License v1.0"
// which accompanies this distribution, and is available
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
//
// Initial Contributors:
// Nokia Corporation - initial contribution.
//
// Contributors:
//
// Description:
// e32\common\arm\cdes8.cia
// 
//

#include <e32cia.h>
#include "../common.h"

#define __FIXED_POINT_64BIT_DIV10__

#if defined(__DES8_MACHINE_CODED__) || defined(__EABI__)

GLREF_C void Des8PanicBadDesType();
GLREF_C void Des8PanicPosOutOfRange();

#endif

#ifdef __DES8_MACHINE_CODED__

GLREF_C void Des8PanicLengthNegative();
GLREF_C void Des8PanicMaxLengthNegative();
GLREF_C void Des8PanicLengthOutOfRange();
GLREF_C void Des8PanicDesOverflow();
GLREF_C void Des8PanicDesIndexOutOfRange();

__NAKED__ EXPORT_C const TUint8 *TDesC8::Ptr() const
//
// Return a pointer to the buffer.
//
	{
	asm("ldr r1, [r0], #4 ");
	asm("cmp r1, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("eor r1, r1, r1, lsr #1 ");
	asm("msr cpsr_flg, r1 ");
	asm("addcs r0, r0, #4 ");
	asm("ldrle r0, [r0] ");
	asm("addeq r0, r0, #4 ");
	__JUMP(,lr);
	}

#ifndef __EABI_CTORS__
__NAKED__ EXPORT_C TPtrC8::TPtrC8()
//
// Default constructor
//
	{
	asm("mov r1, #0x10000000 ");	// type=EPtrC, length=0
	asm("mov r2, #0 ");				// ptr=NULL
	asm("stmia r0, {r1,r2} ");
	__JUMP(,lr);
	}

__NAKED__ EXPORT_C TPtrC8::TPtrC8(const TDesC8& /*aDes*/)
//
// Constructor
//
	{
	asm("ldr r2, [r1], #4 ");		// r2 = type/length
	asm("bic r3, r2, #0xF0000000");	// r3 = length
	asm("orr r3, r3, #0x10000000");	// r3 = EPtrC + length
	asm("cmp r2, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("eor r2, r2, r2, lsr #1 ");
	asm("msr cpsr_flg, r2 ");
	asm("addcs r1, r1, #4 ");
	asm("ldrle r1, [r1] ");
	asm("addeq r1, r1, #4 ");		// r1 = aDes.Ptr()
	asm("str r3, [r0] ");
	asm("str r1, [r0, #4] ");
	__JUMP(,lr);
	}

__NAKED__ EXPORT_C TPtrC8::TPtrC8(const TUint8* /*aString*/)
//
// Constructor
//
	{
	asm("mov r2, r1 ");				// save aString pointer
	asm("1: ");
	asm("ldrb r3, [r1], #1 ");
	asm("cmp r3, #0 ");
	asm("bne 1b ");					// loop until we reach zero terminator
	asm("sub r1, r1, r2 ");			// r1 = length + 1
	asm("sub r1, r1, #1 ");			// r1 = length
	asm("orr r1, r1, #0x10000000 ");	// r1=EPtrC + length
	asm("stmia r0, {r1, r2} ");		// store type/length and ptr fields
	__JUMP(,lr);
	}

__NAKED__ EXPORT_C TPtrC8::TPtrC8(const TUint8* /*aBuf*/,TInt /*aLength*/)
//
// Constructor
//
	{
	asm("orrs r2, r2, #0x10000000 ");
	asm("strpl r2, [r0] ");
	asm("strpl r1, [r0, #4] ");
	__JUMP(pl,lr);
	asm("b  " CSM_Z23Des8PanicLengthNegativev);
	}

__NAKED__ EXPORT_C TPtr8::TPtr8(TUint8* /*aBuf*/,TInt /*aMaxLength*/)
//
// Constructor
//
	{
	asm("cmp r2, #0 ");
	asm("movpl r3, r1 ");
	asm("movpl r1, #0x20000000 ");	// length=0, EPtr
	asm("stmplia r0, {r1,r2,r3} ");
	__JUMP(pl,lr);
	asm("b  " CSM_Z26Des8PanicMaxLengthNegativev);
	}

__NAKED__ EXPORT_C TPtr8::TPtr8(TUint8* /*aBuf*/,TInt /*aLength*/,TInt /*aMaxLength*/)
//
// Constructor
//
	{
	asm("cmp r2, #0 ");				// check length>=0
	asm("cmpge r3, r2 ");			// if so, check maxlength>=length
	asm("movge r12, r1 ");
	asm("orrge r2, r2, #0x20000000 ");	// r2 = length + EPtr
	asm("stmgeia r0, {r2,r3,r12} ");
	__JUMP(ge,lr);
	asm("cmp r2, #0 ");
	asm("bmi  " CSM_Z23Des8PanicLengthNegativev);
	asm("cmp r3, #0 ");
	asm("bmi  " CSM_Z26Des8PanicMaxLengthNegativev);
	asm("b  " CSM_Z25Des8PanicLengthOutOfRangev);
	}

__NAKED__ EXPORT_C TPtr8::TPtr8(TBufCBase8& /*aLcb*/,TInt /*aMaxLength*/)
//
// Constructor
//
	{
	asm("mov r3, r1 ");
	asm("ldr r1, [r3] ");
	asm("bic r1, r1, #0xF0000000 ");		// r1=aLcb.Length()
	asm("cmp r1, r2 ");						// check against maxlength
	asm("orrle r1, r1, #0x40000000 ");		// r1=aLcb.Length() + EBufCPtr
	asm("stmleia r0, {r1,r2,r3} ");
	__JUMP(le,lr);
	asm("b  " CSM_Z25Des8PanicLengthOutOfRangev);
	}

__NAKED__ EXPORT_C TBufCBase8::TBufCBase8()
//
// Constructor
//
	{
	asm("mov r1, #0 ");
	asm("str r1, [r0] ");
	__JUMP(,lr);
	}

__NAKED__ EXPORT_C TBufCBase8::TBufCBase8(const TUint8* /*aString*/,TInt /*aMaxLength*/)
//
// Constructor
//
	{
	asm("mov r3, r1 ");					// save aString pointer
	asm("1: ");
	asm("ldrb r12, [r3], #1 ");
	asm("cmp r12, #0 ");
	asm("bne 1b ");						// loop until we reach zero terminator
	asm("sub r3, r3, r1 ");				// r3 = length + 1
	asm("sub r3, r3, #1 ");				// r3 = length (+EBufC)
	asm("cmp r3, r2 ");					// check against max length
	asm("bgt  " CSM_Z25Des8PanicLengthOutOfRangev);
	asm("stmfd sp!, {r0,lr} ");			// save registers for function call
	asm("str r3, [r0], #4 ");			// save length/type field, r0->buffer
	asm("mov r2, r3 ");					// length into r2 for function call
	asm("bl memmove ");
	__POPRET("r0,");
	}

__NAKED__ EXPORT_C TBufCBase8::TBufCBase8(const TDesC8& /*aDes*/,TInt /*aMaxLength*/)
//
// Constructor
//
	{
	asm("ldr r3, [r1], #4 ");			// r3 = type/length
	asm("bic r12, r3, #0xF0000000");	// r12 = length
	asm("cmp r12, r2 ");				// compare with maxlength
	asm("bgt  " CSM_Z25Des8PanicLengthOutOfRangev);
	asm("cmp r3, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("eor r3, r3, r3, lsr #1 ");
	asm("msr cpsr_flg, r3 ");
	asm("addcs r1, r1, #4 ");
	asm("ldrle r1, [r1] ");
	asm("addeq r1, r1, #4 ");			// r1 = aDes.Ptr()
	asm("stmfd sp!, {r0,lr} ");			// save registers for function call
	asm("str r12, [r0], #4 ");			// store length/type, r0->buffer
	asm("mov r2, r12 ");				// length into r2 for function call
	asm("bl memmove ");
	__POPRET("r0,");
	}
#endif

__NAKED__ EXPORT_C void TBufCBase8::Copy(const TUint8* /*aString*/,TInt /*aMaxLength*/)
//
// Copy from a string.
//
	{
	asm("mov r3, r1 ");					// save aString pointer
	asm("1: ");
	asm("ldrb r12, [r3], #1 ");
	asm("cmp r12, #0 ");
	asm("bne 1b ");						// loop until we reach zero terminator
	asm("sub r3, r3, r1 ");				// r3 = length + 1
	asm("sub r3, r3, #1 ");				// r3 = length (+EBufC)
	asm("cmp r3, r2 ");					// check against max length
	asm("bgt  " CSM_Z25Des8PanicLengthOutOfRangev);
	asm("str r3, [r0], #4 ");			// save length/type field, r0->buffer
	asm("mov r2, r3	");					// length into r2 for function call
	asm("b memmove ");
	}

__NAKED__ EXPORT_C void TBufCBase8::Copy(const TDesC8& /*aDes*/,TInt /*aMaxLength*/)
//
// Copy from a descriptor.
//
	{
	asm("ldr r3, [r1], #4 ");			// r3 = type/length
	asm("bic r12, r3, #0xF0000000");	// r12 = length
	asm("cmp r12, r2 ");				// compare with maxlength
	asm("bgt  " CSM_Z20Des8PanicDesOverflowv);
	asm("cmp r3, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("eor r3, r3, r3, lsr #1 ");
	asm("msr cpsr_flg, r3 ");
	asm("addcs r1, r1, #4 ");
	asm("ldrle r1, [r1] ");
	asm("addeq r1, r1, #4 ");			// r1 = aDes.Ptr()
	asm("str r12, [r0], #4 ");			// store length/type, r0->buffer
	asm("mov r2, r12 ");				// length into r2 for function call
	asm("b memmove ");
	}

#ifndef __EABI_CTORS__
__NAKED__ EXPORT_C TBufBase8::TBufBase8(TInt /*aMaxLength*/)
	{
	asm("mov r2, #0x30000000 ");		// EBuf + zero length
	asm("str r2, [r0] ");
	asm("str r1, [r0, #4] ");
	__JUMP(,lr);
	}

__NAKED__ EXPORT_C TBufBase8::TBufBase8(TInt /*aLength*/, TInt /*aMaxLength*/)
	{
	asm("cmp r1, #0 ");					// check length>=0
	asm("cmpge r2, r1 ");				// if so, check maxlength>=length
	asm("orrge r1, r1, #0x30000000 ");	// r1=length + EBuf
	asm("stmgeia r0, {r1,r2} ");		// store length/type and maxlength fields
	__JUMP(ge,lr);
	asm("cmp r2, #0 ");
	asm("bmi  " CSM_Z26Des8PanicMaxLengthNegativev);
	asm("b  " CSM_Z25Des8PanicLengthOutOfRangev);
	}

__NAKED__ EXPORT_C TBufBase8::TBufBase8(const TUint8* /*aString*/, TInt /*aMaxLength*/)
	{
	asm("mov r12, r1 ");				// save aString pointer
	asm("1: ");
	asm("ldrb r3, [r1], #1 ");
	asm("cmp r3, #0 ");
	asm("bne 1b ");						// loop until we reach zero terminator
	asm("sub r1, r1, r12 ");			// r1 = length + 1
	asm("sub r1, r1, #1 ");				// r1 = length
	asm("cmp r1, r2 ");					// compare to max length
	asm("bgt  " CSM_Z25Des8PanicLengthOutOfRangev);	// length too big, so panic
	asm("orr r1, r1, #0x30000000 ");	// if length<=max, r1=EBuf + length
	asm("stmfd sp!, {r0,lr} ");			// save registers for function call
	asm("stmia r0!, {r1, r2} ");		// store type/length and max length fields, r0->buffer
	asm("bic r2, r1, #0xf0000000 ");	// r2=length
	asm("mov r1, r12 ");				// r12=aString
	asm("bl memmove ");
	__POPRET("r0,");
	}

__NAKED__ EXPORT_C TBufBase8::TBufBase8(const TDesC8& /*aDes*/, TInt /*aMaxLength*/)
	{
	asm("ldr r3, [r1], #4 ");		// r3 = type/length
	asm("bic r12, r3, #0xF0000000");	// r12 = length
	asm("cmp r12, r2 ");				// compare with maxlength
	asm("bgt  " CSM_Z25Des8PanicLengthOutOfRangev);
	asm("cmp r3, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("eor r3, r3, r3, lsr #1 ");
	asm("msr cpsr_flg, r3 ");
	asm("addcs r1, r1, #4 ");
	asm("ldrle r1, [r1] ");
	asm("addeq r1, r1, #4 ");		// r1 = aDes.Ptr()
	asm("stmfd sp!, {r0,lr} ");		// save registers for function call
	asm("orr r12, r12, #0x30000000 ");	// add EBuf type field
	asm("str r12, [r0], #4 ");		// store length/type, r0->max length
	asm("str r2, [r0], #4 ");		// store max length, r0->buffer
	asm("bic r2, r12, #0xf0000000 ");	// length into r2 for function call
	asm("bl memmove ");
	__POPRET("r0,");
	}
#endif

__NAKED__ EXPORT_C void TDes8::SetLength(TInt /*aLength*/)
//
// Set the length of the descriptor, checking the length is O.K.
//
	{
	asm("ldmia r0, {r2,r3} ");			// r2=length/type, r3=maxlength
	asm("cmp r1, r3 ");					// check aLength against maxlength and for -ve values
	asm("bhi  " CSM_Z20Des8PanicDesOverflowv);
	asm("and r2, r2, #0xF0000000 ");	// r2=type field
	asm("cmp r2, #0x40000000 ");		// check for EBufCPtr
	asm("orr r2, r2, r1 ");				// r2=type + new length
	asm("str r2, [r0] ");				// store new length
	__JUMP(ne,lr);
	asm("ldr r2, [r0, #8] ");			// r2=pointer to TBufCBase
	asm("str r1, [r2] ");				// update length of TBufCBase
	__JUMP(,lr);
  	}

__NAKED__ EXPORT_C void TDes8::SetMax()
//
// Set the length to MaxLength().
//
	{
	asm("ldmia r0, {r1,r2} ");			// r1=length/type, r2=maxlength
	asm("and r1, r1, #0xF0000000 ");	// r1=type field
	asm("cmp r1, #0x40000000 ");		// check for EBufCPtr
	asm("orr r1, r1, r2 ");				// r1=type field + maxlength
	asm("str r1, [r0] ");				// store new length
	__JUMP(ne,lr);
	asm("ldr r1, [r0, #8] ");			// r1 = pointer to TBufCBase
	asm("str r2, [r1] ");				// update length of TBufCBase
	__JUMP(,lr);
	}

__NAKED__ EXPORT_C void TDes8::Copy(const TUint8* /*aString*/)
//
// Copy a string to this descriptor.
//
	{
	asm("mov r2, r1 ");					// r2=aString
	asm("1: ");
	asm("ldrb r3, [r2], #1 ");
	asm("cmp r3, #0 ");
	asm("bne 1b ");						// loop until zero terminator reached
	asm("sub r2, r2, r1 ");
	asm("sub r2, r2, #1 ");				// r2=length of string
	asm("ldmia r0, {r3,r12} ");			// r3=type/length of this, r12=maxlength
	asm("cmp r2, r12 ");				// compare new length against maxlength
	asm("bgt  " CSM_Z20Des8PanicDesOverflowv);
	asm("cmp r3, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("and r3, r3, #0xF0000000 ");	// r3=type of this
	asm("orr r3, r3, r2 ");				// r3=new type/length
	asm("str r3, [r0], #4 ");			// store it
	asm("eor r3, r3, r3, lsr #1 ");
	asm("msr cpsr_flg, r3 ");
	asm("addcs r0, r0, #4 ");
	asm("ldrle r0, [r0] ");
	asm("streq r2, [r0], #4 ");			// if EBufCPtr, update length of TBufCBase, r0=Ptr()
	asm("b memmove ");
	}

__NAKED__ EXPORT_C void TDes8::Copy(const TUint8* /*aBuf*/,TInt /*aLength*/)
//
// Copy the aLength characters to the descriptor.
//
	{
	asm("ldmia r0, {r3,r12} ");			// r3=type/length of this, r12=maxlength
	asm("cmp r2, r12 ");				// compare new length against maxlength
	asm("bhi  " CSM_Z20Des8PanicDesOverflowv);	// Des8Panic if >MaxLength or -ve
	asm("cmp r3, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("and r3, r3, #0xF0000000 ");	// r3=type of this
	asm("orr r3, r3, r2 ");				// r3=new type/length
	asm("str r3, [r0], #4 ");			// store it
	asm("eor r3, r3, r3, lsr #1 ");
	asm("msr cpsr_flg, r3 ");
	asm("addcs r0, r0, #4 ");
	asm("ldrle r0, [r0] ");
	asm("streq r2, [r0], #4 ");			// if EBufCPtr, update length of TBufCBase, r0=Ptr()
	asm("b memmove ");
	}

__NAKED__ EXPORT_C void TDes8::Copy(const TDesC8& /*aDes*/)
//
// Copy a descriptor to this descriptor.
//
	{
	asm("ldr r3, [r1], #4 ");			// r3 = type/length of aDes
	asm("bic r12, r3, #0xF0000000");	// r12 = aDes.length
	asm("ldr r2, [r0, #4] ");			// r2=this.maxlength
	asm("cmp r12, r2 ");				// compare with maxlength
	asm("bgt  " CSM_Z20Des8PanicDesOverflowv);
	asm("ldr r2, [r0] ");				// get type of this
	asm("cmp r2, #0x50000000 ");		// check both descriptor types
	asm("cmpcc r3, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("and r2, r2, #0xF0000000 ");
	asm("orr r2, r12, r2 ");			// r2=new type/length of this
	asm("str r2, [r0], #4 ");			// store it
	asm("eor r3, r3, r3, lsr #1 ");
	asm("msr cpsr_flg, r3 ");
	asm("addcs r1, r1, #4 ");
	asm("ldrle r1, [r1] ");
	asm("addeq r1, r1, #4 ");			// r1 = aDes.Ptr()
	asm("eor r2, r2, r2, lsr #1 ");
	asm("msr cpsr_flg, r2 ");
	asm("addcs r0, r0, #4 ");
	asm("ldrle r0, [r0] ");
	asm("streq r12, [r0], #4 ");		// if EBufCPtr, update length of TBufCBase, r0=Ptr()
	asm("mov r2, r12 ");				// length into r2 for function call
	asm("b memmove ");
	}

#ifndef __KERNEL_MODE__
__NAKED__ EXPORT_C TPtr8 TDes8::LeftTPtr(TInt /*aLength*/) const
//
// Extract the left portion of the descriptor.
//
	{
	// On entry r0=return store ptr, r1=this, r2=aLength
	// Return TPtr8 ([r0]=length/type,[r0,#4]=maxLength,[r0,#8]=Ptr)
	asm("ldr r3, [r1], #4 ");				// r3=this.length/type
	asm("cmp r2, #0 ");						// check aLength>=0
	asm("blt " CSM_Z27Des8PanicDesIndexOutOfRangev);	// if not panic
	asm("bic r12, r3, #0xF0000000 ");		// r12=this.Length()
	asm("cmp r2, r12 ");					// limit aLength to Length()
	asm("movgt r2, r12 ");
	asm("cmp r3, #0x50000000 ");			// check type() <= 4
	asm("bcs " CSM_Z19Des8PanicBadDesTypev);	// if not, panic
	asm("eor r3, r3, r3, lsr #1 ");
	asm("msr cpsr_flg, r3 ");
	asm("addcs r1, r1, #4 ");
	asm("ldrle r1, [r1] ");
	asm("addeq r1, r1, #4 ");				// r1=this.Ptr()
	asm("mov r3, r1 ");						// r3=this.Ptr()
	asm("orr r1, r2, #0x20000000 ");		// r1=aLength + EPtr
	asm("stmia r0, {r1-r3} ");				
	__JUMP(,lr);
	}

__NAKED__ EXPORT_C TPtr8 TDes8::RightTPtr(TInt /*aLength*/) const
//
// Extract the right portion of the descriptor.
//
	{
	// On entry r0=return store ptr, r1=this, r2=aLength
	// Return TPtr8 ([r0]=length/type,[r0,#4]=maxLength,[r0,#8]=Ptr)
	asm("ldr r3, [r1], #4 ");				// r3=this.length/type
	asm("cmp r2, #0 ");						// check aLength>=0
	asm("blt " CSM_Z27Des8PanicDesIndexOutOfRangev);	// if not, panic
	asm("bic r12, r3, #0xF0000000 ");		// r12=this.Length()
	asm("cmp r2, r12 ");					// limit aLength to Length()
	asm("movgt r2, r12 ");
	asm("cmp r3, #0x50000000 ");			// check type() <= 4
	asm("bcs " CSM_Z19Des8PanicBadDesTypev);
	asm("eor r3, r3, r3, lsr #1 ");
	asm("msr cpsr_flg, r3 ");
	asm("addcs r1, r1, #4 ");
	asm("ldrle r1, [r1] ");
	asm("addeq r1, r1, #4 ");				// r1=this.Ptr()
	asm("add r3, r1, r12 ");				// r3=this.Ptr()+Length()
	asm("orr r1, r2, #0x20000000 ");		// r1=aLength + EPtr
	asm("sub r3, r3, r2 ");					// r3=Ptr()+Length()-aLength
	asm("stmia r0, {r1-r3} ");
	__JUMP(,lr);
	}

__NAKED__ EXPORT_C TPtr8 TDes8::MidTPtr(TInt /*aPos*/) const
//
// Extract the middle portion of the descriptor.
//
	{
	// On entry r0=return store ptr, r1=this, r2=aPos
	// Return TPtr8 ([r0]=length/type,[r0,#4]=maxLength,[r0,#8]=Ptr)
	asm("ldr r3, [r1], #4 ");				// r3=this.length/type
	asm("bic r12, r3, #0xF0000000 ");		// r12=this.Length()
	asm("cmp r2, #0 ");						// check aPos>=0
	asm("cmpge r12, r2 ");					// if so check Length()>=aPos
	asm("blt " CSM_Z27Des8PanicDesIndexOutOfRangev);
	asm("cmp r3, #0x50000000 ");			// check type() <= 4
	asm("bcs " CSM_Z19Des8PanicBadDesTypev);
	asm("eor r3, r3, r3, lsr #1 ");
	asm("msr cpsr_flg, r3 ");
	asm("addcs r1, r1, #4 ");
	asm("ldrle r1, [r1] ");
	asm("addeq r1, r1, #4 ");				// r1=this.Ptr()
	asm("add r3, r1, r2 ");					// r3=this.Ptr()+aPos
	asm("sub r2, r12, r2 ");				// r2=Length()-aPos (=newMaxLen)
	asm("orr r1, r2, #0x20000000 ");		// r1=Length()-aPos + EPtr (=newLen/Type)
	asm("stmia r0, {r1-r3} ");
	__JUMP(,lr);
	}

__NAKED__ EXPORT_C TPtr8 TDes8::MidTPtr(TInt /*aPos*/,TInt /*aLength*/) const
//
// Extract the middle portion of the descriptor.
//
	{
	// On entry r0=return store ptr, r1=this, r2=aPos, r3=aLength
	// Return TPtr8 ([r0]=length/type,[r0,#4]=maxLength,[r0,#8]=Ptr)
	asm("str r4, [sp, #-4]! ");				// save r4
	asm("ldr r12, [r1], #4 ");				// r12=this.length/type
	asm("mov r4, r1 ");
	asm("cmp r12, #0x50000000 ");			// check valid descriptor type
	asm("bcs " CSM_Z19Des8PanicBadDesTypev);
	asm("eor r12, r12, r12, lsr #1 ");
	asm("msr cpsr_flg, r12 ");
	asm("ldr r12, [r1, #-4] ");
	asm("addcs r4, r4, #4 ");
	asm("ldrle r4, [r4] ");
	asm("bic r12, r12, #0xF0000000 ");		// r12=Length()
	asm("addeq r4, r4, #4 ");				// r4=this.Ptr()
	asm("cmp r2, #0 ");						// check aPos>=0
	asm("subge r12, r12, r2 ");				// if so, r12=Length()-aPos
	asm("cmpge r12, r3 ");					// and check Length()-aPos>=aLength
	asm("orrge r1, r3, #0x20000000 ");		// if so, r1=aLength + EPtr
	asm("addge r3, r4, r2 ");				// and r3=this.Ptr()+aPos
	asm("bicge r2, r1, #0xF0000000 ");		// and r2=aLength
	asm("stmgeia r0, {r1-r3} ");
	asm("ldrge r4, [sp], #4 ");
	__JUMP(ge,lr);
	asm("b " CSM_Z27Des8PanicDesIndexOutOfRangev);
	}
#endif

__NAKED__ EXPORT_C const TUint8 &TDesC8::AtC(TInt /*anIndex*/) const
//
// Return a reference to the character in the buffer.
//
	{
	asm("ldr r2, [r0], #4 ");			// r2=length/type
	asm("bic r3, r2, #0xF0000000 ");	// r3=length
	asm("cmp r2, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("eor r2, r2, r2, lsr #1 ");
	asm("msr cpsr_flg, r2 ");
	asm("addcs r0, r0, #4 ");
	asm("ldrle r0, [r0] ");
	asm("addeq r0, r0, #4 ");			// r0=this.Ptr()
	asm("cmp r1, #0 ");					// check index>=0
	asm("cmpge r3, r1 ");				// if so, check Length()>index
	asm("addgt r0, r0, r1 ");			// return value = this.Ptr()+index
	__JUMP(gt,lr);
	asm("b  " CSM_Z27Des8PanicDesIndexOutOfRangev);
	}

__NAKED__ EXPORT_C TInt TDesC8::Locate(TChar /*aChar*/) const
//
// Locate character aChar in the descriptor.
//
	{
	asm("ldr r2, [r0], #4 ");			// r2=length/type
	asm("cmp r2, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("bics r3, r2, #0xF0000000 ");	// r3=length
	asm("mvneq r0, #0 ");				// if length=0, not found
	__JUMP(eq,lr);
	asm("eor r2, r2, r2, lsr #1 ");
	asm("msr cpsr_flg, r2 ");
	asm("addcs r0, r0, #4 ");
	asm("ldrle r0, [r0] ");
	asm("addeq r0, r0, #4 ");			// r0=this.Ptr()
	asm("add r3, r3, r0 ");				// r3=ptr+length
	asm("add r12, r0, #1 ");			// r12=ptr+1
	asm("1: ");
	asm("ldrb r2, [r0], #1 ");			// r2=*r0++
	asm("cmp r1, r2 ");					// is r1=match char?
	asm("cmpne r0, r3 ");				// if not, is r0=r3 (end pointer)
	asm("bne 1b ");
	asm("cmp r1, r2 ");					// did we find char?
	asm("subeq r0, r0, r12 ");			// if we did, return value = r0-ptr-1
	asm("mvnne r0, #0 ");				// else return value =-1
	__JUMP(,lr);
	}

__NAKED__ EXPORT_C TInt TDesC8::LocateReverse(TChar /*aChar*/) const
//
// Locate character aChar in the descriptor in reverse.
//
	{
	asm("ldr r2, [r0], #4 ");			// r2=length/type
	asm("cmp r2, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("bics r3, r2, #0xF0000000 ");	// r3=length
	asm("mvneq r0, #0 ");				// if length=0, not found
	__JUMP(eq,lr);
	asm("eor r2, r2, r2, lsr #1 ");
	asm("msr cpsr_flg, r2 ");
	asm("addcs r0, r0, #4 ");
	asm("ldrle r0, [r0] ");
	asm("addeq r0, r0, #4 ");			// r0=this.Ptr()
	asm("sub r0, r0, #1 ");				// r0=Ptr-1
	asm("1: ");
	asm("ldrb r2, [r0, r3] ");			// r2=Ptr[r3-1]
	asm("cmp r1, r2 ");					// is r1=match char?
	asm("subnes r3, r3, #1 ");			// if not, decrement char count
	asm("bne 1b ");
	asm("cmp r1, r2 ");					// did we find match char?
	asm("subeq r0, r3, #1 ");			// if we did, return value = r3-1
	asm("mvnne r0, #0 ");				// else return value =-1
	__JUMP(,lr);
	}

#ifndef __KERNEL_MODE__
__NAKED__ EXPORT_C TInt TDesC8::CompareF(const TDesC8& /*aDes*/) const
//
// Compare a descriptor to this descriptor folded.
//
	{
	asm("ldr r12, 1f ");
	asm("b comparebody ");
	asm("1: ");
	asm(".word  " CSM_ZN3Mem8CompareFEPKhiS1_i);
	}

__NAKED__ EXPORT_C TInt TDesC8::CompareC(const TDesC8& /*aDes*/) const
//
// Compare a descriptor to this descriptor collated.
//
	{
	asm("ldr r12, 1f ");
	asm("b comparebody ");
	asm("1: ");
	asm(".word  " CSM_ZN3Mem8CompareCEPKhiS1_i);
	}
#endif

__NAKED__ EXPORT_C TInt TDesC8::Compare(const TDesC8& /*aDes*/) const
//
// Compare a descriptor to this descriptor.
//
	{
	asm("ldr r12, 1f ");
	asm("comparebody: ");
	asm("mov r2, r1 ");						// r2=&aDes
	asm("ldr r3, [r0], #4 ");				// r3=this.length/type
	asm("cmp r3, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("bic r1, r3, #0xF0000000 ");		// r1=this.Length()
	asm("eor r3, r3, r3, lsr #1 ");
	asm("msr cpsr_flg, r3 ");
	asm("addcs r0, r0, #4 ");
	asm("ldrle r0, [r0] ");
	asm("addeq r0, r0, #4 ");				// r0=this.Ptr()
	asm("ldr r3, [r2], #4 ");				// r3=aDes.length/type
	asm("cmp r3, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("eor r3, r3, r3, lsr #1 ");
	asm("msr cpsr_flg, r3 ");
	asm("ldr r3, [r2, #-4] ");
	asm("bic r3, r3, #0xF0000000 ");		// r3=aDes.Length()
	asm("addcs r2, r2, #4 ");
	asm("ldrle r2, [r2] ");
	asm("addeq r2, r2, #4 ");				// r2=aDes.Ptr()
	__JUMP(,r12);
	
	asm("1: ");
	asm(".word memcompare ");
	}
#endif // __DES8_MACHINE_CODED__

#if defined(__DES8_MACHINE_CODED__) && !defined(__EABI__)
__NAKED__ EXPORT_C TPtrC8 TDesC8::Left(TInt /*aLength*/) const
//
// Extract the left portion of the descriptor.
//
	{
	// On entry r0=this, r1=aLength
	// Return TPtrC8 in r0,r1
	asm("ldr r3, [r0], #4 ");				// r3=this.length/type
	asm("bic r12, r3, #0xF0000000 ");		// r12=this.Length()
	asm("cmp r1, #0 ");						// check aLength>=0
	asm("blt  " CSM_Z22Des8PanicPosOutOfRangev);	// if not panic
	asm("cmp r1, r12 ");					// else limit aLength to Length()
	asm("movgt r1, r12 ");
	asm("cmp r3, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("eor r3, r3, r3, lsr #1 ");
	asm("msr cpsr_flg, r3 ");
	asm("addcs r0, r0, #4 ");
	asm("ldrle r0, [r0] ");
	asm("addeq r0, r0, #4 ");				// r0=this.Ptr()
	asm("orr r2, r1, #0x10000000 ");		// r2=aLength + EPtrC
	asm("mov r1, r0 ");						// r1=result ptr
	asm("mov r0, r2 ");						// r0=result type/length
	__JUMP(,lr);
	}

__NAKED__ EXPORT_C TPtrC8 TDesC8::Right(TInt /*aLength*/) const
//
// Extract the right portion of the descriptor.
//
	{
	// On entry r0=this, r1=aLength
	// Return TPtrC8 in r0,r1
	asm("ldr r3, [r0], #4 ");				// r3=this.length/type
	asm("bic r12, r3, #0xF0000000 ");		// r12=this.Length()
	asm("cmp r1, #0 ");						// check aLength>=0
	asm("blt  " CSM_Z22Des8PanicPosOutOfRangev);	// if not, panic
	asm("cmp r1, r12 ");					// else limit aLength to Length()
	asm("movgt r1, r12 ");
	asm("cmp r3, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("eor r3, r3, r3, lsr #1 ");
	asm("msr cpsr_flg, r3 ");
	asm("addcs r0, r0, #4 ");
	asm("ldrle r0, [r0] ");
	asm("addeq r0, r0, #4 ");				// r0=this.Ptr()
	asm("add r3, r0, r12 ");				// r3=this.Ptr()+len
	asm("orr r0, r1, #0x10000000 ");		// r0=aLength + EPtrC
	asm("sub r1, r3, r1 ");					// r1=Ptr()+len-aLength
	__JUMP(,lr);
	}

__NAKED__ EXPORT_C TPtrC8 TDesC8::Mid(TInt /*aPos*/) const
//
// Extract the middle portion of the descriptor.
//
	{
	// On entry r0=this, r1=aPos
	// Return TPtrC8 in r0,r1
	asm("ldr r3, [r0], #4 ");				// r3=this.length/type
	asm("bic r12, r3, #0xF0000000 ");		// r12=this.Length()
	asm("cmp r1, #0 ");						// check aPos>=0
	asm("cmpge r12, r1 ");					// if so check Length()>=aPos
	asm("blt  " CSM_Z22Des8PanicPosOutOfRangev);
	asm("cmp r3, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("eor r3, r3, r3, lsr #1 ");
	asm("msr cpsr_flg, r3 ");
	asm("addcs r0, r0, #4 ");
	asm("ldrle r0, [r0] ");
	asm("addeq r0, r0, #4 ");				// r0=this.Ptr()
	asm("sub r2, r12, r1 ");				// r2=len-aPos
	asm("add r1, r0, r1 ");					// r1=this.Ptr()+aPos
	asm("orr r0, r2, #0x10000000 ");		// r0=aLength + EPtrC
	__JUMP(,lr);
	}

__NAKED__ EXPORT_C TPtrC8 TDesC8::Mid(TInt /*aPos*/,TInt /*aLength*/) const
//
// Extract the middle portion of the descriptor.
//
	{
	// On entry r0=this, r1=aPos, r2=aLength
	// Return TPtrC8 in r0,r1
	asm("ldr r12, [r0], #4 ");				// r12=this.length/type
	asm("cmp r12, #0x50000000 ");			// check valid descriptor type
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("eor r12, r12, r12, lsr #1 ");
	asm("msr cpsr_flg, r12 ");
	asm("ldr r12, [r0, #-4] ");
	asm("bic r12, r12, #0xF0000000 ");		// r12=Length()
	asm("addcs r0, r0, #4 ");
	asm("ldrle r0, [r0] ");
	asm("addeq r0, r0, #4 ");				// r0=this.Ptr()
	asm("cmp r1, #0 ");						// check aPos>=0
	asm("subge r12, r12, r1 ");				// if so, r12=Length()-aPos
	asm("cmpge r12, r2 ");					// and check Length()-aPos>=aLength
	asm("addge r1, r1, r0 ");				// if so, r1=Ptr()+aPos
	asm("orrge r0, r2, #0x10000000 ");		// and r0 = aLength + EPtrC
	__JUMP(ge,lr);
	asm("b  " CSM_Z22Des8PanicPosOutOfRangev);
	}
#endif // defined(__DES8_MACHINE_CODED__) && !defined(__EABI__)

#ifdef __DES8_MACHINE_CODED__

// Here are the __EABI__ compliant versions of the above
#ifdef __EABI__

__NAKED__ EXPORT_C TPtrC8 TDesC8::Left(TInt /*aLength*/) const
//
// Extract the left portion of the descriptor.
//
	{
	// On entry r0=return store ptr, r1=this, r2=aLength
	// Return TPtrC8 ([r0]=length/type,[r0,#4]=Ptr)
	asm("ldr r3, [r1], #4 ");				// r3=this.length/type
	asm("cmp r2, #0 ");					// check aLength>=0
	asm("blt " CSM_Z27Des8PanicDesIndexOutOfRangev);			// if not panic
	asm("bic r12, r3, #0xF0000000 ");			// r12=this.Length()
	asm("cmp r2, r12 ");					// limit aLength to Length()
	asm("movgt r2, r12 ");
	asm("cmp r3, #0x50000000 ");				// check type() <= 4
	asm("bcs " CSM_Z19Des8PanicBadDesTypev);			// if not, panic
	asm("eor r3, r3, r3, lsr #1 ");
	asm("msr cpsr_flg, r3 ");
	asm("addcs r1, r1, #4 ");
	asm("ldrle r1, [r1] ");
	asm("addeq r1, r1, #4 ");				// r1=this.Ptr()
	asm("mov r3, r1");					// r3=this.Ptr()
	asm("orr r1, r2, #0x10000000 ");			// r1=aLength + EPtrC
	asm("stmia r0, {r1,r3} ");				
	__JUMP(,lr);
	}

__NAKED__ EXPORT_C TPtrC8 TDesC8::Right(TInt /*aLength*/) const
//
// Extract the right portion of the descriptor.
//
	{
	// On entry r0=return store ptr, r1=this, r2=aLength
	// Return TPtrC8 ([r0]=length/type,[r0,#4]=Ptr)
	asm("ldr r3, [r1], #4 ");				// r3=this.length/type
	asm("cmp r2, #0 ");					// check aLength>=0
	asm("blt " CSM_Z27Des8PanicDesIndexOutOfRangev);			// if not, panic
	asm("bic r12, r3, #0xF0000000 ");			// r12=this.Length()
	asm("cmp r2, r12 ");					// limit aLength to Length()
	asm("movgt r2, r12 ");
	asm("cmp r3, #0x50000000 ");				// check type() <= 4
	asm("bcs " CSM_Z19Des8PanicBadDesTypev);
	asm("eor r3, r3, r3, lsr #1 ");
	asm("msr cpsr_flg, r3 ");
	asm("addcs r1, r1, #4 ");
	asm("ldrle r1, [r1] ");
	asm("addeq r1, r1, #4 ");				// r3=this.Ptr()
	asm("add r3, r1, r12 ");				// r3=this.Ptr()+Length()
	asm("orr r1, r2, #0x10000000 ");			// r1=aLength + EPtrC
	asm("sub r3, r3, r2 ");					// r3=Ptr()+Length()-aLength
	asm("stmia r0, {r1,r3} ");
	__JUMP(,lr);
	}

__NAKED__ EXPORT_C TPtrC8 TDesC8::Mid(TInt /*aPos*/) const
//
// Extract the middle portion of the descriptor.
//
	{
	// On entry r0=return store ptr, r1=this, r2=aPos
	// Return TPtrC8 ([r0]=length/type,[r0,#4]=Ptr)
	asm("ldr r3, [r1], #4 ");				// r3=this.length/type
	asm("bic r12, r3, #0xF0000000 ");			// r12=this.Length()
	asm("cmp r2, #0 ");					// check aPos>=0
	asm("cmpge r12, r2 ");					// if so check Length()>=aPos
	asm("blt " CSM_Z27Des8PanicDesIndexOutOfRangev);
	asm("cmp r3, #0x50000000 ");				// check type() <= 4
	asm("bcs " CSM_Z19Des8PanicBadDesTypev);
	asm("eor r3, r3, r3, lsr #1 ");
	asm("msr cpsr_flg, r3 ");
	asm("addcs r1, r1, #4 ");
	asm("ldrle r1, [r1] ");
	asm("addeq r1, r1, #4 ");				// r1=this.Ptr()
	asm("add r3, r1, r2 ");					// r3=this.Ptr()+aPos
	asm("sub r2, r12, r2 ");				// r2=Length()-aPos (=newMaxLen)
	asm("orr r1, r2, #0x10000000 ");		// r1=Length()-aPos + EPtrC (=newLen/Type)
	asm("stmia r0, {r1,r3} ");
	__JUMP(,lr);
	}

__NAKED__ EXPORT_C TPtrC8 TDesC8::Mid(TInt /*aPos*/,TInt /*aLength*/) const
//
// Extract the middle portion of the descriptor.
//
	{
	// On entry r0=return store ptr, r1=this, r2=aPos, r3=aLength
	// Return TPtrC8 ([r0]=length/type,[r0,#4]=Ptr)
	asm("ldr r12, [r1], #4 ");				// r12=this.length/type
	asm("cmp r12, #0x50000000 ");			// check valid descriptor type
	asm("bcs " CSM_Z19Des8PanicBadDesTypev);
	asm("eor r12, r12, r12, lsr #1 ");
	asm("msr cpsr_flg, r12 ");
	asm("ldr r12, [r1, #-4] ");
	asm("addcs r1, r1, #4 ");
	asm("ldrle r1, [r1] ");
	asm("bic r12, r12, #0xF0000000 ");			// r12=Length()
	asm("addeq r1, r1, #4 ");				// r1=this.Ptr()
	asm("cmp r2, #0 ");					// check aPos>=0
	asm("subge r12, r12, r2 ");				// if so, r12=Length()-aPos
	asm("cmpge r12, r3 ");					// and check Length()-aPos>=aLength
	asm("addge r2, r1, r2 ");				// if so r2=this.Ptr()+aPos
	asm("orrge r1, r3, #0x10000000 ");			// and r1=aLength + EPtrC
	asm("stmgeia r0, {r1,r2} ");
	__JUMP(ge,lr);
	asm("b " CSM_Z27Des8PanicDesIndexOutOfRangev);
	}
#endif

__NAKED__ EXPORT_C void TDes8::Zero()
//
// Zero the buffer.
//
	{
	asm("ldr r1, [r0] ");				// r1=length/type
	asm("and r1, r1, #0xF0000000 ");	// r1=type field, zero length
	asm("cmp r1, #0x40000000 ");		// check for EBufCPtr
	asm("str r1, [r0] ");				// store zero length
	__JUMP(ne,lr);
	asm("ldr r2, [r0, #8] ");			// r2 = pointer to TBufCBase
	asm("mov r1, #0 ");
	asm("str r1, [r2] ");				// update length of TBufCBase
	__JUMP(,lr);
	}

#ifndef __KERNEL_MODE__
__NAKED__ EXPORT_C void TDes8::ZeroTerminate()
//
// Zero terminate at Length().
//
	{
	// Fall through to PtrZ below...
	}

__NAKED__ EXPORT_C const TUint8 *TDes8::PtrZ()
//
// Return a pointer to a 0 terminated string.
//
	{
	asm("ldmia r0, {r1,r2} ");			// r1=length/type, r2=maxlength
	asm("bic r3, r1, #0xF0000000 ");	// r3=Length();
	asm("cmp r3, r2 ");					// check Length()<MaxLength()
	asm("bge  " CSM_Z20Des8PanicDesOverflowv);
	asm("cmp r1, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("eor r1, r1, r1, lsr #1 ");
	asm("msr cpsr_flg, r1 ");
	asm("add r0, r0, #4 ");
	asm("addcs r0, r0, #4 ");
	asm("ldrle r0, [r0] ");
	asm("addeq r0, r0, #4 ");			// r0=Ptr()
	asm("mov r2, #0 ");
	asm("strb r2, [r0, r3] ");			// Ptr()[Length()]=0;
	__JUMP(,lr);
	}
#endif

__NAKED__ EXPORT_C void TDes8::Append(TChar /*aChar*/)
//
// Add a character at the end of the string.
//
	{
	asm("ldmia r0, {r2,r3} ");			// r2=length/type, r3=maxlength
	asm("bic r12, r2, #0xF0000000 ");	// r12=Length();
	asm("cmp r12, r3 ");				// check Length()<MaxLength()
	asm("bge  " CSM_Z20Des8PanicDesOverflowv);
	asm("cmp r2, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("add r2, r2, #1 ");				// increment length by 1
	asm("str r2, [r0] ");				// store new length
	asm("eor r2, r2, r2, lsr #1 ");
	asm("msr cpsr_flg, r2 ");
	asm("add r2, r0, #4 ");				// r2=this+4
	asm("addcs r2, r2, #4 ");
	asm("ldrle r2, [r2] ");
	asm("addeq r3, r12, #1 ");			// if EBufCPtr, r3=Length()+1
	asm("streq r3, [r2], #4 ");			// and update length of TBufCBase, r2=Ptr()
	asm("strb r1, [r2, r12] ");			// Ptr()[Length()]=aChar;
	__JUMP(,lr);
	}

__NAKED__ EXPORT_C void TDes8::Append(const TDesC8& /*aDes*/)
//
// Append a descriptor to this descriptor.
//
	{
	asm("ldr r3, [r1], #4 ");			// r3=aDes.length/type
	asm("cmp r3, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("bics r2, r3, #0xF0000000 ");	// r2=aDes.Length()
	__JUMP(eq,lr);
	asm("eor r3, r3, r3, lsr #1 ");
	asm("msr cpsr_flg, r3 ");
	asm("addcs r1, r1, #4 ");
	asm("ldrle r1, [r1] ");
	asm("addeq r1, r1, #4 ");			// r1=aDes.Ptr()
	asm("b appendbody ");	// use following routine for rest of job
	}

__NAKED__ EXPORT_C void TDes8::Append(const TUint8* /*aBuf*/,TInt /*aLength*/)
//
// Append aLength from aBuf characters to the descriptor.
//
	{
	asm("cmp r2, #0 ");					// check aLength>=0
	__JUMP(eq,lr);
	asm("blt  " CSM_Z23Des8PanicLengthNegativev);
	asm("appendbody: ");
	asm("ldmia r0, {r3,r12} ");			// r3=type/length, r12=maxlength
	asm("cmp r3, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("bic r3, r3, #0xF0000000 ");	// r3=Length()
	asm("sub r12, r12, r3 ");			// r12=MaxLength-Length
	asm("cmp r2, r12 ");				// check aLength<=(MaxLength-Length)
	asm("bgt  " CSM_Z20Des8PanicDesOverflowv);
	asm("ldr r12, [r0] ");
	asm("add r12, r12, r2 ");			// new length/type field
	asm("str r12, [r0], #4 ");			// store it
	asm("eor r12, r12, r12, lsr #1 ");
	asm("msr cpsr_flg, r12 ");
	asm("addcs r0, r0, #4 ");
	asm("ldrle r0, [r0] ");
	asm("ldreq r12, [r0] ");			// fetch length from TBufCBase
	asm("addeq r12, r12, r2 ");			// add aLength
	asm("streq r12, [r0], #4 ");		// update length of TBufCBase, r0=Ptr()
	asm("add r0, r0, r3 ");				// r0=Ptr()+Length()
	asm("b memmove ");
	}

__NAKED__ EXPORT_C void TDes8::FillZ()
//
// Fill the descriptor with 0.
//
	{
	asm("ldr r2, [r0] ");				// r2=length/type
	asm("cmp r2, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("bic r1, r2, #0xF0000000 ");	// r1=Length()
	asm("eor r2, r2, r2, lsr #1 ");
	asm("msr cpsr_flg, r2 ");
	asm("add r0, r0, #4 ");
	asm("addcs r0, r0, #4 ");
	asm("ldrle r0, [r0] ");
	asm("addeq r0, r0, #4 ");			// r0=Ptr()
	asm("b memclr ");
	}

__NAKED__ EXPORT_C void TDes8::Fill(TChar /*aChar*/)
//
// Fill the descriptor with aChar.
//
	{
	asm("ldr r3, [r0] ");				// r3=length/type
	asm("cmp r3, #0x50000000 ");
	asm("bcs  " CSM_Z19Des8PanicBadDesTypev);
	asm("bic r2, r3, #0xF0000000 ");	// r2=Length()
	asm("eor r3, r3, r3, lsr #1 ");
	asm("msr cpsr_flg, r3 ");
	asm("add r0, r0, #4 ");
	asm("addcs r0, r0, #4 ");
	asm("ldrle r0, [r0] ");
	asm("addeq r0, r0, #4 ");			// r0=Ptr()
	asm("b memset ");					// memset(Ptr(),aChar,Length())
	}
#endif //__DES8_MACHINE_CODED__

#ifdef __DES_MACHINE_CODED__
__NAKED__ GLDEF_C TInt __DoConvertNum(TUint /*aVal*/, TRadix /*aRadix*/, TUint /*aA*/, TUint8*& /*aDest*/)
	{
	asm("ldr ip, [r3] ");				// ip = aDest
	asm("cmp r1, #16 ");
	asm("beq do_convert_hex ");
	asm("cmp r1, #10 ");
	asm("beq do_convert_dec ");
#ifdef __KERNEL_MODE__
	asm("mov r0, #%a0" : : "i" ((TInt)EInvalidRadix));
	asm("b  " CSM_Z5Panic9TCdtPanic);
#else // !__KERNEL_MODE__
	asm("cmp r1, #2 ");
	asm("beq do_convert_bin ");
	asm("cmp r1, #8 ");
	asm("beq do_convert_oct ");
	asm("do_convert_any: ");
	asm("stmfd sp!, {r4-r8,lr} ");
	asm("mov r5, r1 ");					// save radix
	asm("and r6, r2, #0xff ");
	asm("sub r6, r6, #10 ");			// save aA - 10
	asm("mov r4, ip ");					// r4 = aDest
	asm("mov r7, r3 ");					// save &aDest
	asm("mov r8, r2");					// save aA
	asm("1: ");
	asm("mov r1, r5 ");					// r1 = radix
#ifndef __EABI__
	asm(".extern __umodsi3 ");
	asm("bl __umodsi3 ");				// do division, quotient->r3, rem->r0
	asm("mov r1, r0");					// move to make regs same as EABI function
	asm("mov r0, r3");
#else //__EABI__
	asm(".extern __aeabi_uidivmod ");
	asm("bl __aeabi_uidivmod ");		// do division, quotient->r0, rem->r1
#endif //__EABI__
	asm("cmp r1, #9 ");
	asm("addhi r1, r1, r6 ");			// r1 = (r1 > 9) ? (r1 + (aA - 10)) : r1 + '0'
	asm("addls r1, r1, #0x30 ");
	asm("tst r8, #0x100 ");
	asm("strneh r1, [r4, #-2]! ");		// *--r4 = (TUint16)r1
	asm("streqb r1, [r4, #-1]! ");		// *--r4 = (TUint8)r1
	asm("movs r1, r0 ");				// new aVal into r1
	asm("bne 1b ");
	asm("ldr ip, [r7] ");				// ip can be scratched by __aeabi_uidivmod
	asm("str r4, [r7] ");				// aDest = r4
	asm("sub r0, ip, r4 ");				// return aDest - r4
	__POPRET("r4-r8,");

	asm("do_convert_bin: ");
	asm("mov r2, r2, lsl #22 ");		// aA bit 8 into bit 30
	asm("adds r2, r2, r2 ");			// set V flag = aA bit 8
	asm("1: ");
	asm("movs r0, r0, lsr #1 ");		// aVal>>=1, bit 0 into carry, V unaffected
	asm("mov r1, #0x30 ");				// r1 = '0'
	asm("adc r1, r1, #0 ");				// add in carry
	asm("strvsh r1, [ip, #-2]! ");		// if aA bit 8 set, store 16 bits
	asm("strvcb r1, [ip, #-1]! ");		// else store 8 bits
	asm("bne 1b ");						// loop back if aVal still nonzero
	asm("ldr r1, [r3] ");				// r1 = original aDest
	asm("str ip, [r3] ");				// aDest = ip
	asm("sub r0, r1, ip ");				// return aDest - ip
	__JUMP(,lr);

	asm("do_convert_oct: ");
	asm("mov r2, r2, lsl #22 ");		// aA bit 8 into bit 30
	asm("adds r2, r2, r2 ");			// set V flag = aA bit 8
	asm("1: ");
	asm("and r1, r0, #7 ");				// r1 = aVal & 7
	asm("movs r0, r0, lsr #3 ");		// aVal>>=3, set Z accordingly, V unaffected
	asm("add r1, r1, #0x30 ");			// r1 += '0'
	asm("strvsh r1, [ip, #-2]! ");		// if aA bit 8 set, store 16 bits
	asm("strvcb r1, [ip, #-1]! ");		// else store 8 bits
	asm("bne 1b ");						// loop back if aVal still nonzero
	asm("ldr r1, [r3] ");				// r1 = original aDest
	asm("str ip, [r3] ");				// aDest = ip
	asm("sub r0, r1, ip ");				// return aDest - ip
	__JUMP(,lr);
#endif //__KERNEL_MODE__

	asm("do_convert_hex: ");
	asm("mov r1, r2, lsl #22 ");		// aA bit 8 into r1 bit 30
	asm("adds r1, r1, r1 ");			// set V flag = aA bit 8
	asm("and r2, r2, #0xff ");
	asm("sub r2, r2, #0x40 ");
	asm("1: ");
	asm("and r1, r0, #15 ");			// r1 = aVal & 15
	asm("add r1, r1, #0x36 ");			// r1 += '0'+6
	asm("tst r1, #0x40 ");
	asm("subeq r1, r1, #6 ");
	asm("addne r1, r1, r2 ");
	asm("movs r0, r0, lsr #4 ");		// aVal>>=4, V unaffected
	asm("strvsh r1, [ip, #-2]! ");		// if aA bit 8 set, store 16 bits
	asm("strvcb r1, [ip, #-1]! ");		// else store 8 bits
	asm("bne 1b ");						// loop back if aVal still nonzero
	asm("ldr r1, [r3] ");				// r1 = original aDest
	asm("str ip, [r3] ");				// aDest = ip
	asm("sub r0, r1, ip ");				// return aDest - ip
	__JUMP(,lr);

	asm("do_convert_dec: ");
	asm("and r2, r2, #0x100 ");			// mask all bits of aA except bit 8
	asm("orr r3, r3, r2, lsr #8 ");		// r3 bit 0 = aA bit 8
	asm("1: ");
    asm("sub r1, r0, #10 ");			// divide aVal by 10, r0=quotient, r1=remainder
    asm("sub r0, r0, r0, lsr #2 ");
    asm("add r0, r0, r0, lsr #4 ");
    asm("add r0, r0, r0, lsr #8 ");
    asm("add r0, r0, r0, lsr #16 ");
	asm("mov r0, r0, lsr #3 ");
	asm("add r2, r0, r0, lsl #2 ");
	asm("subs r1, r1, r2, lsl #1 ");
	asm("addpl r0, r0, #1 ");
	asm("addmi r1, r1, #10 ");
	asm("add r1, r1, #0x30 ");			// add '0' to remainder
	asm("tst r3, #1 ");					// test aA bit 8
	asm("strneh r1, [ip, #-2]! ");		// if aA bit 8 set, store 16 bits
	asm("streqb r1, [ip, #-1]! ");		// else store 8 bits
	asm("teq r0, #0 ");
	asm("bne 1b ");						// loop back if aVal still nonzero
	asm("bic r3, r3, #1 ");
	asm("ldr r1, [r3] ");				// r1 = original aDest
	asm("str ip, [r3] ");				// aDest = ip
	asm("sub r0, r1, ip ");				// return aDest - ip
	__JUMP(,lr);
	}

__NAKED__ GLDEF_C TInt __DoConvertNum(TUint64 /*aVal*/, TRadix /*aRadix*/, TUint /*aA*/, TUint8*& /*aDest*/)
	{
	asm("ldr ip, [sp] ");				// ip = &aDest
	asm("cmp r2, #16 ");
	asm("beq do_convert_hex64 ");
	asm("cmp r2, #10 ");
	asm("beq do_convert_dec64 ");
#ifdef __KERNEL_MODE__
	asm("mov r0, #%a0" : : "i" ((TInt)EInvalidRadix));
	asm("b  " CSM_Z5Panic9TCdtPanic);
#else // !__KERNEL_MODE__
	asm("cmp r2, #2 ");
	asm("beq do_convert_bin64 ");
	asm("cmp r2, #8 ");
	asm("beq do_convert_oct64 ");
	asm("stmfd sp!, {r4-r8,lr} ");
	asm("ldr r4, [ip] ");				// r4 = aDest
	asm("mov r5, r2 ");					// save radix
	asm("and r6, r3, #0xff ");			// r6 = aA & 0xff
	asm("sub r6, r6, #10 ");			// save a - 10
	asm("mov r7, ip ");					// save &aDest
	asm("mov r8, r3");					// save aA
	asm("teq r1, #0 ");					// aVal > 0xffffffffu
	asm("beq 2f ");
	asm("1: ");
	asm("mov r3, #0 ");
	asm("mov r2, r5 ");					// r3:r2 = radix
#ifndef __EABI__
	asm("stmfd sp!, {r4-r6} ");			// push the registers that are scratched by UDiv01
	asm(".extern UDiv01 ");
	asm("bl UDiv01 ");					// do division, quotient->r5:r4, rem->r6:r3
	asm("mov r0, r4");					// move to make regs same as EABI function
	asm("mov r1, r5");
	asm("mov r2, r3");
	asm("mov r3, r6");
	asm("ldmfd sp!, {r4-r6} ");			// pop the registers that are scratched by UDiv01
#else //__EABI__
	asm(".extern __aeabi_uldivmod ");
	asm("bl __aeabi_uldivmod ");		// do division, quotient->r1:r0, rem->r3:r2
#endif //__EABI__
	asm("cmp r2, #9 ");
	asm("addhi r2, r2, r6 ");			// r2 = (r2>9) ? r2+aA-10 : r2+'0'
	asm("addls r2, r2, #0x30 ");
	asm("tst r8, #0x100 ");
	asm("strneh r2, [r4, #-2]! ");		// *--r4 = (TUint16)r2
	asm("streqb r2, [r4, #-1]! ");		// *--r4 = (TUint8)r2
	asm("teq r1, #0 ");					// new aVal > 0xffffffffu
	asm("bne 1b ");
	asm("2: ");
	asm("mov r2, r8 ");					// r2 = aA
	asm("ldr r1, [r7] ");				// r1 = aDest
	asm("mov r3, r7 ");					// r3 = &aDest
	asm("sub r6, r1, r4 ");				// r6 = aDest - r4
	asm("mov r1, r5 ");					// r1 = radix
	asm("str r4, [r3] ");				// aDest = r4
	asm("mov ip, r4 ");					// ip = aDest
	asm("bl do_convert_any ");
	asm("add r0, r0, r6 ");				// r0 += r6
	__POPRET("r4-r8,");

	asm("do_convert_bin64: ");
	asm("mov r2, ip ");					// r2 = &aDest
	asm("ldr ip, [ip] ");				// ip = aDest
	asm("mov r3, r3, lsl #22 ");		// aA bit 8 into bit 30
	asm("adds r3, r3, r3 ");			// set V flag = aA bit 8
	asm("teq r1, #0 ");					// if (aVal <= 0xffffffffu)
	asm("moveq r1, ip ");				// r1 = orig. aDest in second half
	asm("beq 2f ");						// branch to second half of the loop
	asm("1: ");
	asm("movs r0, r0, lsr #1 ");		// aVal >>= 1, bit 0 into carry, V unaffected
	asm("mov r3, #0x30 ");				// r3 = '0'
	asm("adc r3, r3, #0 ");				// add in carry
	asm("strvsh r3, [ip, #-2]! ");		// if aA bit 8 set, store 16 bits
	asm("strvcb r3, [ip, #-1]! ");		// else store 8 bits
	asm("bne 1b ");						// loop back if (aVal & 0xffffffffu) still nonzero
	asm("ldr r0, [r2] ");				// r0 = original aDest
	asm("subvc r0, r0, #32 ");			// r0 = end of buffer for first word (8-bit descriptor)
	asm("subvs r0, r0, #64 ");			// r0 = end of buffer for first word (16-bit descriptor)
	asm("teq ip, r0 ");					// don't pad if we have already emitted 32 bits
	asm("beq finish_bin_zero_pad ");
	asm("bin_zero_pad: ");
	asm("mov r3, #0x30 ");				// r3 = '0'
	asm("bin_zero_pad_loop: ");
	asm("strvsh r3, [ip, #-2]! ");		// if aA bit 8 set, store 16 bits
	asm("strvcb r3, [ip, #-1]! ");		// else store 8 bits
	asm("teq ip, r0 ");
	asm("bne bin_zero_pad_loop ");		// loop back if padding not complete
	asm("finish_bin_zero_pad: ");
	asm("addvc r0, r0, #32 ");			// r0 = original aDest
	asm("addvs r0, r0, #64 ");			// r0 = original aDest
	asm("mov r3, r1 ");
	asm("mov r1, r0 ");
	asm("mov r0, r3 ");					// r1 = orig aDest, r0 = aVal >> 32
	asm("2: ");
	asm("movs r0, r0, lsr #1 ");		// aVal >>= 1, bit 0 into carry, V unaffected
	asm("mov r3, #0x30 ");				// r3 = '0'
	asm("adc r3, r3, #0 ");				// add in carry
	asm("strvsh r3, [ip, #-2]! ");		// if aA bit 8 set, store 16 bits
	asm("strvcb r3, [ip, #-1]! ");		// else store 8 bits
	asm("bne 2b ");						// loop back if aVal still nonzero
	asm("str ip, [r2] ");				// aDest = ip
	asm("sub r0, r1, ip ");				// return aDest - ip
	__JUMP(,lr);

	asm("do_convert_oct64: ");			// Convert as 31 + 33 bits when > 32 bits
	asm("mov r2, ip ");					// r2 = &aDest
	asm("ldr ip, [ip] ");				// ip = aDest
	asm("mov r3, r3, lsl #22 ");		// aA bit 8 into bit 30
	asm("adds r3, r3, r3 ");			// set V flag = aA bit 8
	asm("teq r1, #0 ");					// if (aVal <= 0xffffffffu)
	asm("moveq r1, ip ");				// r1 = orig. aDest in second half
	asm("beq 3f ");						// branch to second half of the loop
	asm("and r3, r0, #7 ");				// r3 = aVal & 7
	asm("mov r0, r0, lsr #3 ");			// aVal>>=3, set Z accordingly, V unaffected
	asm("orr r0, r0, r1, lsl #29 ");	//  note we now have the bottom 33 bits in r0:r3[2:0]
	asm("ands r0, r0, #0x3fffffff ");	//  and the top 31 bits in r1
	asm("mov r1, r1, lsr #1 ");
	asm("add r3, r3, #0x30 ");			// r3 += '0'
	asm("strvsh r3, [ip, #-2]! ");		// if aA bit 8 set, store 16 bits
	asm("strvcb r3, [ip, #-1]! ");		// else store 8 bits
	asm("beq 2f ");
	asm("1: ");
	asm("and r3, r0, #7 ");				// r3 = aVal & 7
	asm("movs r0, r0, lsr #3 ");		// aVal>>=3, set Z accordingly, V unaffected
	asm("add r3, r3, #0x30 ");			// r3 += '0'
	asm("strvsh r3, [ip, #-2]! ");		// if aA bit 8 set, store 16 bits
	asm("strvcb r3, [ip, #-1]! ");		// else store 8 bits
	asm("bne 1b ");						// loop back if (aVal & 0xffffffff) still nonzero
	asm("2: ");
	asm("ldr r0, [r2] ");				// r0 = original aDest
	asm("subvc r0, r0, #11 ");			// r0 = end of buffer for first word (8-bit descriptor)
	asm("subvs r0, r0, #22 ");			// r0 = end of buffer for first word (16-bit descriptor)
	asm("teq ip, r0 ");					// don't pad if we have already emitted 32 bits
	asm("beq finish_oct_zero_pad ");
	asm("oct_zero_pad: ");
	asm("mov r3, #0x30 ");				// r3 = '0'
	asm("oct_zero_pad_loop: ");
	asm("strvsh r3, [ip, #-2]! ");		// if aA bit 8 set, store 16 bits
	asm("strvcb r3, [ip, #-1]! ");		// else store 8 bits
	asm("teq ip, r0 ");
	asm("bne oct_zero_pad_loop ");		// loop back if padding not complete
	asm("finish_oct_zero_pad: ");
	asm("addvc r0, r0, #11 ");			// r0 = original aDest
	asm("addvs r0, r0, #22 ");			// r0 = original aDest
	asm("mov r3, r0 ");
	asm("mov r0, r1 ");
	asm("mov r1, r3 ");					// r1 = orig aDest, r0 = aVal >> 32
	asm("3: ");
	asm("and r3, r0, #7 ");				// r3 = aVal & 7
	asm("movs r0, r0, lsr #3 ");		// aVal>>=3, set Z accordingly, V unaffected
	asm("add r3, r3, #0x30 ");			// r3 += '0'
	asm("strvsh r3, [ip, #-2]! ");		// if aA bit 8 set, store 16 bits
	asm("strvcb r3, [ip, #-1]! ");		// else store 8 bits
	asm("bne 3b ");						// loop back if aVal still nonzero
	asm("str ip, [r2] ");				// aDest = ip
	asm("sub r0, r1, ip ");				// return aDest - ip
	__JUMP(,lr);

#endif //__KERNEL_MODE__

	asm("do_convert_hex64: ");
	asm("ldr ip, [ip] ");				// ip = aDest
	asm("mov r2, r3, lsl #22 ");		// aA bit 8 into r2 bit 30
	asm("adds r2, r2, r2 ");			// set V flag = aA bit 8
	asm("and r3, r3, #0xff ");			// aA = aA & 0xff
	asm("teq r1, #0 ");					// if (aVal <= 0xffffffffu)
	asm("sub r3, r3, #0x40 ");			// bias by ('0' + 16) either way => r3 = aA - ('0' + 16)
	asm("moveq r1, ip ");				// r1 = orig. aDest in second half
	asm("beq 2f ");						// branch to second half of the loop
	asm("1: ");
	asm("and r2, r0, #0xf ");			// r2 = aVal & 0xf
	asm("add r2, r2, #0x36 ");			// r2 += ('0' + 6)
	asm("tst r2, #0x40 ");				// if ((aVal & 0xf) > 9)
	asm("addne r2, r2, r3 ");			// r2 = (aVal & 0xf) + (aA - 10)
	asm("subeq r2, r2, #6 ");			// r2 = (aVal & 0xf) + '0'
	asm("movs r0, r0, lsr #4 ");		// aVal>>=4, V unaffected
	asm("strvsh r2, [ip, #-2]! ");		// if aA bit 8 set, store 16 bits
	asm("strvcb r2, [ip, #-1]! ");		// else store 8 bits
	asm("bne 1b ");						// loop back if (aVal & 0xffffffffu) still nonzero
	asm("ldr r0, [sp] ");				// r0 = &aDest
	asm("ldr r2, [r0] ");				// r2 = original aDest
	asm("subvc r0, r2, #8 ");			// r0 = end of buffer for first word (8-bit descriptor)
	asm("subvs r0, r2, #16 ");			// r0 = end of buffer for first word (16-bit descriptor)
	asm("teq ip, r0 ");					// don't pad if we have already emitted 32 bits
	asm("beq finish_hex_zero_pad ");
	asm("hex_zero_pad: ");
	asm("mov r2, #0x30 ");				// r3 = '0'
	asm("hex_zero_pad_loop: ");
	asm("strvsh r2, [ip, #-2]! ");		// if aA bit 8 set, store 16 bits
	asm("strvcb r2, [ip, #-1]! ");		// else store 8 bits
	asm("teq ip, r0 ");
	asm("bne hex_zero_pad_loop ");		// loop back if padding not complete
	asm("finish_hex_zero_pad: ");
	asm("addvc r0, r0, #8 ");			// r0 = original aDest
	asm("addvs r0, r0, #16 ");			// r0 = original aDest
	asm("mov r2, r0 ");
	asm("mov r0, r1 ");
	asm("mov r1, r2 ");					// r1 = orig aDest, r0 = aVal >> 32
	asm("2: ");
	asm("and r2, r0, #0xf ");			// r2 = aVal & 0xf
	asm("add r2, r2, #0x36 ");			// r2 += '0'+6
	asm("tst r2, #0x40 ");
	asm("subeq r2, r2, #6 ");			// r2 = (aVal & 0xf) + '0'
	asm("addne r2, r2, r3 ");			// r2 = (aVal & 0xf) + (aA - 10)
	asm("movs r0, r0, lsr #4 ");		// aVal>>=4, V unaffected
	asm("strvsh r2, [ip, #-2]! ");		// if aA bit 8 set, store 16 bits
	asm("strvcb r2, [ip, #-1]! ");		// else store 8 bits
	asm("bne 2b ");						// loop back if aVal still nonzero
	asm("ldr r2, [sp] ");				// r2 = &aDest
	asm("sub r0, r1, ip ");				// return aDest - ip
	asm("str ip, [r2] ");				// aDest = ip
	__JUMP(,lr);

#ifndef __FIXED_POINT_64BIT_DIV10__

	asm("do_convert_dec64: ");			// As generic case, except can save one reg as radix known
	asm("stmfd sp!, {r4-r6,lr} ");
	asm("ldr r4, [ip] ");				// r4 = aDest
	asm("mov r5, ip ");					// save &aDest
	asm("mov r6, r3");					// save aA
	asm("teq r1, #0 ");					// aVal > 0xffffffffu
	asm("beq 2f ");
	asm("1: ");
	asm("mov r3, #0 ");
	asm("mov r2, #10 ");				// r3:r2 = radix
#ifndef __EABI__
	asm("stmfd sp!, {r4-r6} ");			// push the registers that are scratched by UDiv01
	asm(".extern UDiv01 ");
	asm("bl UDiv01 ");					// do division, quotient->r5:r4, rem->r6:r3
	asm("mov r0, r4");					// move to make regs same as EABI function
	asm("mov r1, r5");
	asm("mov r2, r3");
	asm("mov r3, r6");
	asm("ldmfd sp!, {r4-r6} ");			// pop the registers that are scratched by UDiv01
#else //__EABI__
	asm(".extern __aeabi_uldivmod ");
	asm("bl __aeabi_uldivmod ");		// do division, quotient->r1:r0, rem->r3:r2
#endif //__EABI__
	asm("add r2, r2, #0x30 ");			// add '0' to remainder
	asm("tst r6, #0x100 ");
	asm("strneh r2, [r4, #-2]! ");		// *--r4 = (TUint16)r2
	asm("streqb r2, [r4, #-1]! ");		// *--r4 = (TUint8)r2
	asm("teq r1, #0 ");					// new aVal > 0xffffffffu
	asm("bne 1b ");
	asm("2: ");
	asm("mov r2, r6 ");					// r2 = aA
	asm("ldr r1, [r5] ");				// r1 = original aDest
	asm("mov r3, r5 ");					// r3 = &aDest
	asm("sub r6, r1, r4 ");				// r6 = original aDest - r4
	asm("mov r1, #10 ");				// r1 = radix
	asm("str r4, [r3] ");				// aDest = r4
	asm("mov ip, r4 ");					// ip = aDest
	asm("bl do_convert_dec ");
	asm("add r0, r0, r6 ");				// r0 += r6
	__POPRET("r4-r6,");

#else //__FIXED_POINT_64BIT_DIV10__

	asm("do_convert_dec64: ");			// Be extra cunning by doing fixed-point arithmetic using only shifts, adds and subtracts
	asm("stmfd sp!, {r4-r7,lr} ");		//  - avoids costs of potentially inefficient calls to __aeabi_uldivmod
	asm("mov r4, r3 ");					// r4 = aA
	asm("ldr r5, [ip] ");				// r5 = aDest
	asm("teq r1, #0 ");					// aVal > 0xffffffffu
	asm("beq 2f ");
	asm("1: ");
	asm("subs r2, r0, #10 ");			// divide aVal by 10, r1:r0=quotient, r3:r2=remainder
	asm("sbc r3, r1, #0 ");
	asm("mov r6, r0, lsr #2 ");			// NB: 0.8 rounded to 64 bits is:
	asm("orr r6, r6, r1, lsl #30 ");	// 		0.11001100110011001100110011001100110011001100110011001100110011
	asm("subs r0, r0, r6 ");
	asm("sbc r1, r1, r1, lsr #2 ");		// quotient -= quotient >> 2	(0.11)
	asm("mov r6, r0, lsr #4 ");
	asm("orr r6, r6, r1, lsl #28 ");
	asm("adds r0, r0, r6 ");
	asm("adc r1, r1, r1, lsr #4 ");		// quotient += quotient >> 4	(0.110011)
	asm("mov r6, r0, lsr #8 ");
	asm("orr r6, r6, r1, lsl #24 ");
	asm("adds r0, r0, r6 ");
	asm("adc r1, r1, r1, lsr #8 ");		// quotient += quotient >> 8	(0.11001100110011)
	asm("mov r6, r0, lsr #16 ");
	asm("orr r6, r6, r1, lsl #16 ");
	asm("adds r0, r0, r6 ");
	asm("adc r1, r1, r1, lsr #16 ");	// quotient += quotient >> 16	(0.110011001100110011001100110011)
	asm("adds r0, r0, r1 ");
	asm("adc r1, r1, #0 ");				// quotient += quotient >> 32	(0.11001100110011001100110011001100110011001100110011001100110011)
	asm("mov r0, r0, lsr #3 ");
	asm("orr r0, r0, r1, lsl #29 ");
	asm("mov r1, r1, lsr #3 ");			// quotient >>= 3		0.1 ==	(0.00011001100110011001100110011001100110011001100110011001100110011)
	asm("mov r7, r1, lsl #2 ");			// use r7:r6 as a temp
	asm("orr r7, r7, r0, lsr #30 ");
	asm("mov r6, r0, lsl #2 ");			// r7:r6 = quotient << 2 == 4 * |aVal/10|
	asm("adds r6, r6, r0 ");
	asm("adc r7, r7, r1 ");				// r7:r6 += quotient == 5 * |aVal/10|
	asm("mov r7, r7, lsl #1 ");
	asm("orr r7, r7, r6, lsr #31 ");
	asm("mov r6, r6, lsl #1 ");			// r7:r6 <<= 1 == 10 * |aVal/10|
	asm("subs r2, r2, r6 ");
	asm("sbcs r3, r3, r7 ");			// r3:r2 = aVal - (10 * |aVal/10|) == remainder
	asm("bpl fix_quotient ");
	asm("adds r2, r2, #10 ");
	asm("adc r3, r3, #0 ");				// fix remainder
	asm("b fix_end ");
	asm("fix_quotient: ");
	asm("adds r0, r0, #1 ");
	asm("adc r1, r1, #0 ");				// increment quotient
	asm("fix_end: ");
	asm("add r2, r2, #0x30 ");			// add '0' to remainder
	asm("tst r4, #0x100 ");				// test aA bit 8
	asm("strneh r2, [r5, #-2]! ");		// if aA bit 8 set, store 16 bits
	asm("streqb r2, [r5, #-1]! ");		// else store 8 bits
	asm("teq r1, #0 ");
	asm("bne 1b ");						// loop back if new aVal > 0xffffffffu
	asm("2: ");
	asm("mov r2, r4 ");					// r2 = aA
	asm("ldr r1, [ip] ");				// r1 = original aDest
	asm("mov r3, ip ");					// r3 = &aDest
	asm("sub r6, r1, r5 ");				// r6 = original aDest - r5
	asm("str r5, [r3] ");				// aDest = r5
	asm("mov r1, #10 ");				// r1 = radix
	asm("mov ip, r5 ");					// ip = aDest
	asm("bl do_convert_dec ");
	asm("add r0, r0, r6 ");				// r0 += r6
	__POPRET("r4-r7,");

#endif //__FIXED_POINT_64BIT_DIV10__

	}

#endif //__DES_MACHINE_CODED__
