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// Copyright (c) 1998-2009 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\carray.cia
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// Machine coded arrays for ARM
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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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#ifdef __ARRAY_MACHINE_CODED__
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extern "C" void PanicBadArrayFindMode();
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EXPORT_C __NAKED__ TAny*& RPointerArrayBase::At(TInt /*anIndex*/) const
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{
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asm("ldmia r0, {r2,r3} "); // r2=iCount, r3=iEntries
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asm("cmp r1, #0 "); // check anIndex>=0
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asm("cmpge r2, r1 "); // if so, check iCount>anIndex
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asm("addgt r0, r3, r1, lsl #2 "); // address of entry = iEntries+4*anIndex
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#ifdef __CPU_ARMV6
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asm("ble 1f "); // avoid conditional return on ARMv6
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__JUMP(,lr);
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#else
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__JUMP(gt,lr);
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#endif
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asm("1: ");
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asm("b " CSM_Z18PanicBadArrayIndexv);
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}
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EXPORT_C __NAKED__ TInt RPointerArrayBase::Append(const TAny* /*anEntry*/)
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{
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asm("ldmia r0, {r2,r3,r12} "); // r2=iCount, r3=iEntries, r12=iAllocated
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asm("cmp r2, r12 ");
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asm("beq ptr_append_1 ");
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asm("ptr_append_0: ");
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asm("str r1, [r3, r2, lsl #2] ");
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asm("add r2, r2, #1 ");
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asm("str r2, [r0] ");
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asm("mov r0, #0 ");
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__JUMP(,lr);
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asm("ptr_append_1: ");
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asm("stmfd sp!, {r0,r1,r2,lr} ");
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asm("bl " CSM_ZN17RPointerArrayBase4GrowEv);
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asm("cmp r0, #0 ");
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asm("bne ptr_append_2 ");
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asm("ldmfd sp!, {r0,r1,r2,lr} ");
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asm("ldmia r0, {r2, r3} ");
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asm("b ptr_append_0 ");
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asm("ptr_append_2: "); // error enlarging array
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asm("add sp, sp, #12 ");
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__POPRET("");
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}
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EXPORT_C __NAKED__ TInt RPointerArrayBase::Find(const TAny* /*anEntry*/) const
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{
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asm("ldmia r0, {r2,r3} "); // r2=iCount, r3=iEntries
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asm("mov r0, #0 "); // r0=0 (will be index+1)
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asm("subs r2, r2, #1 "); // r2=iCount-1
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asm("blt 0f ");
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asm("1: ");
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asm("ldr r12, [r3], #4 "); // r12=iEntries[r0]
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asm("add r0, r0, #1 "); // r0 = index+1
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asm("cmp r2, r0 "); // C=1 iff iCount-1>=index+1 iff index<=iCount-2 iff this isn't last entry
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asm("teq r12, r1 "); // check for equality, doesn't affect C
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asm("bhi 1b "); // loop if C=1 & Z=0, i.e. if no match and this isn't last entry
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asm("0: ");
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asm("movne r0, #0 "); // if no match set r0=0
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asm("sub r0, r0, #1 "); // r0 was index+1, return index
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__JUMP(,lr);
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}
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EXPORT_C __NAKED__ TInt RPointerArrayBase::Find(const TAny* /*anEntry*/, TGeneralIdentityRelation /*anIdentity*/) const
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{
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asm("stmfd sp!, {r4-r8,lr} ");
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__EH_FRAME_PUSH2(r4-r8,lr)
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asm("ldmia r0, {r4,r5} "); // r4=iCount, r5=iEntries
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asm("mvn r6, #0 ");
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asm("mov r7, r1 ");
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asm("mov r8, r2 ");
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asm("subs r4, r4, #1 "); // r4=iCount-1
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asm("bmi ptr_find2_return "); // if count=0, return -1
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asm("ptr_find2_loop: ");
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asm("ldr r1, [r5], #4 "); // r1=pointer to entry r6
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asm("add r6, r6, #1 ");
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asm("mov r0, r7 "); // r0=anEntry
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__JUMPL(8);
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asm("cmp r0, #0 ");
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asm("bne ptr_find2_return "); // if equal, return r6
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asm("cmp r6, r4 ");
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asm("blt ptr_find2_loop ");
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asm("mvn r6, #0 ");
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asm("ptr_find2_return: "); // return r6
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asm("mov r0, r6 ");
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__POPRET("r4-r8,");
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}
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EXPORT_C __NAKED__ TInt RPointerArrayBase::BinarySearchSigned(TInt /*anEntry*/, TInt& /*anIndex*/) const
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{
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asm("mov r3, #0 ");
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// fall through
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}
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EXPORT_C __NAKED__ TInt RPointerArrayBase::BinarySearchSigned(TInt /*anEntry*/, TInt& /*anIndex*/, TInt /*aMode*/) const
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{
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asm("stmfd sp!, {r4-r6,lr} ");
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__EH_FRAME_PUSH2(r4-r6,lr)
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asm("mov r6, r2 "); // r6=&anIndex
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asm("ldmia r0, {r2,r4} "); // r2=count, r4=iEntries
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asm("bl BinarySearchSigned ");
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asm("str r2, [r6] "); // store index
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__POPRET("r4-r6,");
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// Binary search list of signed integers
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// Match value in r1
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// List address in r4
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// Count in r2
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// Match mode in r3
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// Return with: r0=0 if match found, r0=-1 otherwise
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// Z flag set if match found, clear if not
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// r2=index of match or next higher
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// r5 modified
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asm("BinarySearchSigned: ");
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#ifdef _DEBUG
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asm("cmp r3, #%a0" : : "i" ((TInt)EArrayFindMode_Limit) );
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asm("bhs PanicBadArrayFindMode ");
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#endif
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asm("mov r3, r3, lsl #30 "); // match mode -> bits 30,31 (00000000=any, 40000000=first, 80000000=last)
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asm("orr r3, r3, #1 "); // set NOT FOUND flag
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asm("cmp r2, #0 "); // r2 will be right index
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asm("beq 0f ");
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asm("mov r5, #0 "); // r5 = left index
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asm("1: ");
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asm("add r12, r2, r5 ");
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asm("mov r12, r12, lsr #1 "); // r12 = mid index
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asm("ldr r0, [r4, r12, lsl #2] "); // r0 = entry[mid]
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asm("subs r0, r0, r1 "); // r0 = entry[mid] - match
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asm("beq 2f "); // if match branch out
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asm("3: ");
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asm("addlt r5, r12, #1 "); // else if entry<match left=mid+1
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asm("movgt r2, r12 "); // else if entry>match right=mid
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asm("subs r0, r2, r5 "); // right > left ?
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asm("bgt 1b "); // r0 = 0 when loop terminates
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asm("0: ");
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asm("tst r3, #1 "); // test not found flag
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asm("mvnnes r0, #0 "); // if set r0=-1 = KErrNotFound
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__JUMP(,lr);
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asm("2: ");
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asm("bics r3, r3, #1 "); // clear NOT FOUND flag, test for find mode ANY (Z set if so)
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asm("bne 3b "); // if not, V=0 (left from subs), N=1 for last, 0 for first, Z=0 => LAST->LT FIRST->GT
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asm("mov r2, r12 "); // if so, r2 = mid
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__JUMP(,lr); // and return with r0 = 0
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}
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EXPORT_C __NAKED__ TInt RPointerArrayBase::BinarySearchUnsigned(TUint /*anEntry*/, TInt& /*anIndex*/) const
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{
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asm("mov r3, #0 ");
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// fall through
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}
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EXPORT_C __NAKED__ TInt RPointerArrayBase::BinarySearchUnsigned(TUint /*anEntry*/, TInt& /*anIndex*/, TInt /*aMode*/) const
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{
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asm("stmfd sp!, {r4-r6,lr} ");
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__EH_FRAME_PUSH2(r4-r6,lr)
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asm("mov r6, r2 "); // r6=&anIndex
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asm("ldmia r0, {r2,r4} "); // r2=count, r4=iEntries
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asm("bl BinarySearchUnsigned ");
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asm("str r2, [r6] "); // store index
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__POPRET("r4-r6,");
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// Binary search list of unsigned integers
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// Match value in r1
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// List address in r4
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// Count in r2
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// Match mode in r3
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// Return with: r0=0 if match found, r0=-1 otherwise
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// Z flag set if match found, clear if not
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// r2=index of match or next higher
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// r5 modified
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asm("BinarySearchUnsigned: ");
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#ifdef _DEBUG
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asm("cmp r3, #%a0" : : "i" ((TInt)EArrayFindMode_Limit) );
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asm("bhs PanicBadArrayFindMode ");
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#endif
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asm("mov r3, r3, lsl #30 "); // match mode -> bits 30,31 (00000000=any, 40000000=first, 80000000=last)
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asm("orr r3, r3, #1 "); // set NOT FOUND flag
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asm("cmp r2, #0 "); // r2 will be right index
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asm("beq 0f ");
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asm("mov r5, #0 "); // r5 = left index
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asm("1: ");
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asm("add r12, r2, r5 ");
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asm("mov r12, r12, lsr #1 "); // r12 = mid index
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asm("ldr r0, [r4, r12, lsl #2] "); // r0 = entry[mid]
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asm("subs r0, r1, r0 "); // r0 = match - entry[mid]
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asm("beq 2f "); // if match branch out
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asm("3: ");
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asm("addhi r5, r12, #1 "); // else if entry<match left=mid+1 HI = C &~ Z
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asm("movlo r2, r12 "); // else if entry>match right=mid LO = ~C
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asm("subs r0, r2, r5 "); // right > left ?
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asm("bgt 1b "); // r0 = 0 when loop terminates
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asm("0: ");
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asm("tst r3, #1 "); // test not found flag
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asm("mvnnes r0, #0 "); // if set r0=-1 = KErrNotFound
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__JUMP(,lr);
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asm("2: "); // N=0 Z=1 C=1 V=0 r0=0 here
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asm("bics r3, r3, #1 "); // clear NOT FOUND flag, test for find mode ANY (Z set if so)
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asm("cmpne r3, #0x60000000 "); // HI if LAST, LO if FIRST
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asm("bne 3b "); // if not ANY, branch back
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asm("mov r2, r12 "); // if ANY, r2 = mid
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__JUMP(,lr); // and return with r0 = 0
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}
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EXPORT_C __NAKED__ TInt RPointerArrayBase::BinarySearch(const TAny* /*anEntry*/, TInt& /*anIndex*/, TGeneralLinearOrder /*anOrder*/, TInt /*aMode*/) const
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{
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sl@0
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asm("stmfd sp!, {r2,r4-r11,lr} "); // store &anIndex, r4-r11, lr
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__EH_FRAME_ADDRESS(sp,4)
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__EH_FRAME_PUSH2(r4-r11,lr)
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sl@0
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asm("ldmia r0, {r5,r6} "); // r5=count, r6=iEntries
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asm("ldr r11, [sp, #40] "); // r11 = aMode
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asm("mov r7, r3 "); // r7=anOrder
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asm("mov r4, r1 "); // r1=anEntry
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asm("bl BinarySearchPointers "); // r0=KErrNone if match, KErrNotFound if not
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asm("ldmfd sp!, {r2,r4} "); // r2=&anIndex, restore r4
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// Dont need to FRAME RESTORE here since there's no barrier here
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asm("str r5, [r2] "); // store index
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__POPRET("r5-r11,"); // restore r5-r11 and return
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// Binary search list of pointers
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// Pointer to match value in r4
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// List address in r6
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// Count in r5
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// Pointer to ordering function in r7
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// r11 = find mode
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// Return with: r0=0 if match found, r0=-1 otherwise
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// Z flag set if match found, clear otherwise
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sl@0
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// r5=index of match or next higher
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sl@0
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// r9,r10,r11 modified
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asm("BinarySearchPointers: ");
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#ifdef _DEBUG
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250 |
asm("cmp r11, #%a0" : : "i" ((TInt)EArrayFindMode_Limit) );
|
|
sl@0
|
251 |
asm("bhs PanicBadArrayFindMode ");
|
|
sl@0
|
252 |
#endif
|
|
sl@0
|
253 |
asm("movs r11, r11, lsl #30 "); // match mode -> bits 30,31 (00000000=any, 40000000=first, 80000000=last)
|
|
sl@0
|
254 |
asm("eorne r11, r11, #0xC0000000 "); // match mode -> bits 30,31 (00000000=any, 80000000=first, 40000000=last)
|
|
sl@0
|
255 |
asm("orr r11, r11, #1 "); // set NOT FOUND flag
|
|
sl@0
|
256 |
asm("mov r9, lr ");
|
|
sl@0
|
257 |
asm("cmp r5, #0 "); // r5 will be right index
|
|
sl@0
|
258 |
asm("beq 0f ");
|
|
sl@0
|
259 |
asm("mov r10, #0 "); // r10 = left index
|
|
sl@0
|
260 |
asm("1: ");
|
|
sl@0
|
261 |
asm("add r8, r5, r10 ");
|
|
sl@0
|
262 |
asm("mov r8, r8, lsr #1 "); // r8 = mid index
|
|
sl@0
|
263 |
|
|
sl@0
|
264 |
/** the latency of the indirect call should mask the latency of the ldr
|
|
sl@0
|
265 |
arm1136 requires base register to be valid one cycle early
|
|
sl@0
|
266 |
*/
|
|
sl@0
|
267 |
asm("mov r0, r4 "); // r0 points to match value
|
|
sl@0
|
268 |
asm("ldr r1, [r6, r8, lsl #2] "); // r1 points to entry[mid]
|
|
sl@0
|
269 |
__JUMPL(7); // call ordering function (match, entry)
|
|
sl@0
|
270 |
asm("cmp r0, #0 ");
|
|
sl@0
|
271 |
asm("biceq r11, r11, #1 "); // if match clear NOT FOUND flag
|
|
sl@0
|
272 |
asm("addeqs r0, r0, r11 "); // and add match mode to r0 (>0 if LAST, <0 if FIRST, 0 if ANY)
|
|
sl@0
|
273 |
asm("beq 2f "); // branch out if match and ANY
|
|
sl@0
|
274 |
asm("addgt r10, r8, #1 "); // else if match > entry, left = mid + 1
|
|
sl@0
|
275 |
asm("movlt r5, r8 "); // else if match < entry, right = mid
|
|
sl@0
|
276 |
asm("subs r0, r5, r10 "); // loop if right > left
|
|
sl@0
|
277 |
asm("bgt 1b "); // finish loop with r0 = 0
|
|
sl@0
|
278 |
asm("0: ");
|
|
sl@0
|
279 |
asm("tst r11, #1 "); // test not found flag
|
|
sl@0
|
280 |
asm("mvnnes r0, #0 "); // if set r0=-1 = KErrNotFound
|
|
sl@0
|
281 |
__JUMP(,r9);
|
|
sl@0
|
282 |
asm("2: ");
|
|
sl@0
|
283 |
asm("mov r5, r8 "); // if ANY, r8 = mid
|
|
sl@0
|
284 |
__JUMP(,r9); // and return with r0 = 0, Z=1
|
|
sl@0
|
285 |
}
|
|
sl@0
|
286 |
|
|
sl@0
|
287 |
EXPORT_C __NAKED__ TInt RPointerArrayBase::FindIsqSigned(TInt /*anEntry*/) const
|
|
sl@0
|
288 |
{
|
|
sl@0
|
289 |
asm("mov r2, #0 ");
|
|
sl@0
|
290 |
// fall through
|
|
sl@0
|
291 |
}
|
|
sl@0
|
292 |
|
|
sl@0
|
293 |
EXPORT_C __NAKED__ TInt RPointerArrayBase::FindIsqSigned(TInt /*anEntry*/, TInt /*aMode*/) const
|
|
sl@0
|
294 |
{
|
|
sl@0
|
295 |
#ifdef __EABI__
|
|
sl@0
|
296 |
// sp needs correct alignment
|
|
sl@0
|
297 |
asm("stmfd sp!, {r4-r6,lr} ");
|
|
sl@0
|
298 |
__EH_FRAME_PUSH2(r4-r6,lr)
|
|
sl@0
|
299 |
#else
|
|
sl@0
|
300 |
asm("stmfd sp!, {r4,r5,lr} ");
|
|
sl@0
|
301 |
#endif
|
|
sl@0
|
302 |
asm("mov r3, r2 "); // r3 = match mode
|
|
sl@0
|
303 |
asm("ldmia r0, {r2,r4} "); // r2=count, r4=iEntries
|
|
sl@0
|
304 |
asm("bl BinarySearchSigned ");
|
|
sl@0
|
305 |
asm("moveq r0, r2 "); // if match r0=match index; if no match, r0=KErrNotFound
|
|
sl@0
|
306 |
#ifdef __EABI__
|
|
sl@0
|
307 |
__POPRET("r4-r6,");
|
|
sl@0
|
308 |
#else
|
|
sl@0
|
309 |
__POPRET("r4,r5,");
|
|
sl@0
|
310 |
#endif
|
|
sl@0
|
311 |
}
|
|
sl@0
|
312 |
|
|
sl@0
|
313 |
EXPORT_C __NAKED__ TInt RPointerArrayBase::FindIsqUnsigned(TUint /*anEntry*/) const
|
|
sl@0
|
314 |
{
|
|
sl@0
|
315 |
asm("mov r2, #0 ");
|
|
sl@0
|
316 |
// fall through
|
|
sl@0
|
317 |
}
|
|
sl@0
|
318 |
|
|
sl@0
|
319 |
EXPORT_C __NAKED__ TInt RPointerArrayBase::FindIsqUnsigned(TUint /*anEntry*/, TInt /*aMode*/) const
|
|
sl@0
|
320 |
{
|
|
sl@0
|
321 |
#ifdef __EABI__
|
|
sl@0
|
322 |
// sp needs correct alignment
|
|
sl@0
|
323 |
asm("stmfd sp!, {r4-r6,lr} ");
|
|
sl@0
|
324 |
__EH_FRAME_PUSH2(r4-r6,lr)
|
|
sl@0
|
325 |
#else
|
|
sl@0
|
326 |
asm("stmfd sp!, {r4,r5,lr} ");
|
|
sl@0
|
327 |
#endif
|
|
sl@0
|
328 |
asm("mov r3, r2 "); // r3 = match mode
|
|
sl@0
|
329 |
asm("ldmia r0, {r2,r4} "); // r2=count, r4=iEntries
|
|
sl@0
|
330 |
asm("bl BinarySearchUnsigned ");
|
|
sl@0
|
331 |
asm("moveq r0, r2 "); // if match r0=match index; if no match, r0=KErrNotFound
|
|
sl@0
|
332 |
#ifdef __EABI__
|
|
sl@0
|
333 |
__POPRET("r4-r6,");
|
|
sl@0
|
334 |
#else
|
|
sl@0
|
335 |
__POPRET("r4,r5,");
|
|
sl@0
|
336 |
#endif
|
|
sl@0
|
337 |
}
|
|
sl@0
|
338 |
|
|
sl@0
|
339 |
EXPORT_C __NAKED__ TInt RPointerArrayBase::FindIsq(const TAny* /*anEntry*/, TGeneralLinearOrder /*anOrder*/) const
|
|
sl@0
|
340 |
{
|
|
sl@0
|
341 |
asm("mov r3, #0 ");
|
|
sl@0
|
342 |
// fall through
|
|
sl@0
|
343 |
}
|
|
sl@0
|
344 |
|
|
sl@0
|
345 |
EXPORT_C __NAKED__ TInt RPointerArrayBase::FindIsq(const TAny* /*anEntry*/, TGeneralLinearOrder /*anOrder*/, TInt /*aMode*/) const
|
|
sl@0
|
346 |
{
|
|
sl@0
|
347 |
|
|
sl@0
|
348 |
asm("stmfd sp!, {r3-r11,lr} ");
|
|
sl@0
|
349 |
__EH_FRAME_PUSH2(r4-r6,lr)
|
|
sl@0
|
350 |
asm("ldmia r0, {r5,r6} "); // r5=count, r6=iEntries
|
|
sl@0
|
351 |
asm("mov r11, r3 "); // r11 = aMode
|
|
sl@0
|
352 |
asm("mov r7, r2 "); // r7=anOrder
|
|
sl@0
|
353 |
asm("mov r4, r1 "); // r1=anEntry
|
|
sl@0
|
354 |
asm("bl BinarySearchPointers ");
|
|
sl@0
|
355 |
asm("moveq r0, r5 "); // if match, r0=match index
|
|
sl@0
|
356 |
__POPRET("r3-r11,");
|
|
sl@0
|
357 |
}
|
|
sl@0
|
358 |
|
|
sl@0
|
359 |
#ifndef __KERNEL_MODE__
|
|
sl@0
|
360 |
EXPORT_C __NAKED__ void RPointerArrayBase::HeapSortSigned()
|
|
sl@0
|
361 |
{
|
|
sl@0
|
362 |
#ifdef __EABI__
|
|
sl@0
|
363 |
asm("stmfd sp!, {r4-r10,lr} ");
|
|
sl@0
|
364 |
__EH_FRAME_PUSH2(r4-r10,lr)
|
|
sl@0
|
365 |
#else
|
|
sl@0
|
366 |
asm("stmfd sp!, {r4-r9,lr} ");
|
|
sl@0
|
367 |
#endif
|
|
sl@0
|
368 |
asm("ldmia r0, {r4,r5} "); // r4=iCount, r5=iEntries
|
|
sl@0
|
369 |
asm("bl HeapSortSigned ");
|
|
sl@0
|
370 |
#ifdef __EABI__
|
|
sl@0
|
371 |
__POPRET("r4-r10,");
|
|
sl@0
|
372 |
#else
|
|
sl@0
|
373 |
__POPRET("r4-r9,");
|
|
sl@0
|
374 |
#endif
|
|
sl@0
|
375 |
// Heap sort list of signed integers
|
|
sl@0
|
376 |
// List address in r5, count in r4
|
|
sl@0
|
377 |
// r4=ss, r6=sh, r7=si
|
|
sl@0
|
378 |
// r8,r9 modified
|
|
sl@0
|
379 |
asm("HeapSortSigned: ");
|
|
sl@0
|
380 |
asm("cmp r4, #1 ");
|
|
sl@0
|
381 |
__JUMP(le,lr);
|
|
sl@0
|
382 |
asm("mov r6, r4, lsr #1 ");
|
|
sl@0
|
383 |
asm("hss_loop_start1: ");
|
|
sl@0
|
384 |
asm("sub r6, r6, #1 ");
|
|
sl@0
|
385 |
asm("ldr r7, [r5, r6, lsl #2] ");
|
|
sl@0
|
386 |
asm("mov r8, r6 ");
|
|
sl@0
|
387 |
asm("mov r9, r6 ");
|
|
sl@0
|
388 |
asm("b hss_loop_start2 ");
|
|
sl@0
|
389 |
asm("hss_loop_inner: ");
|
|
sl@0
|
390 |
asm("ldr r0, [r5, r8, lsl #2] ");
|
|
sl@0
|
391 |
asm("str r0, [r5, r9, lsl #2] ");
|
|
sl@0
|
392 |
asm("mov r9, r8 ");
|
|
sl@0
|
393 |
asm("hss_loop_start2: ");
|
|
sl@0
|
394 |
asm("add r8, r8, #1 ");
|
|
sl@0
|
395 |
asm("add r8, r8, r8 ");
|
|
sl@0
|
396 |
asm("cmp r8, r4 ");
|
|
sl@0
|
397 |
asm("bgt hss_loop_inner_end ");
|
|
sl@0
|
398 |
asm("add r0, r5, r8, lsl #2 ");
|
|
sl@0
|
399 |
asm("ldmneda r0, {r1,r2} ");
|
|
sl@0
|
400 |
asm("ldreq r1, [r0, #-4] ");
|
|
sl@0
|
401 |
asm("subeq r8, r8, #1 ");
|
|
sl@0
|
402 |
asm("beq hss_loop_inner2 ");
|
|
sl@0
|
403 |
asm("cmp r1, r2 ");
|
|
sl@0
|
404 |
asm("subgt r8, r8, #1 ");
|
|
sl@0
|
405 |
asm("movle r1, r2 ");
|
|
sl@0
|
406 |
asm("hss_loop_inner2: ");
|
|
sl@0
|
407 |
asm("cmp r1, r7 ");
|
|
sl@0
|
408 |
asm("bgt hss_loop_inner ");
|
|
sl@0
|
409 |
asm("hss_loop_inner_end: ");
|
|
sl@0
|
410 |
asm("str r7, [r5, r9, lsl #2] ");
|
|
sl@0
|
411 |
asm("cmp r6, #0 ");
|
|
sl@0
|
412 |
asm("bne hss_loop_start1 ");
|
|
sl@0
|
413 |
asm("sub r4, r4, #1 ");
|
|
sl@0
|
414 |
asm("ldr r7, [r5, r4, lsl #2] ");
|
|
sl@0
|
415 |
asm("ldr r0, [r5, #0] ");
|
|
sl@0
|
416 |
asm("str r0, [r5, r4, lsl #2] ");
|
|
sl@0
|
417 |
asm("cmp r4, #1 ");
|
|
sl@0
|
418 |
asm("mov r8, r6 ");
|
|
sl@0
|
419 |
asm("mov r9, r6 ");
|
|
sl@0
|
420 |
asm("bgt hss_loop_start2 ");
|
|
sl@0
|
421 |
asm("str r7, [r5, #0] ");
|
|
sl@0
|
422 |
__JUMP(,lr);
|
|
sl@0
|
423 |
}
|
|
sl@0
|
424 |
|
|
sl@0
|
425 |
EXPORT_C __NAKED__ void RPointerArrayBase::HeapSortUnsigned()
|
|
sl@0
|
426 |
{
|
|
sl@0
|
427 |
asm("stmfd sp!, {r4-r9,lr} ");
|
|
sl@0
|
428 |
asm("ldmia r0, {r4,r5} "); // r4=iCount, r5=iEntries
|
|
sl@0
|
429 |
asm("bl HeapSortUnsigned ");
|
|
sl@0
|
430 |
__POPRET("r4-r9,");
|
|
sl@0
|
431 |
}
|
|
sl@0
|
432 |
#endif // !__KERNEL_MODE__
|
|
sl@0
|
433 |
|
|
sl@0
|
434 |
__NAKED__ void HeapSortUnsigned(TUint* aEntries,TInt aCount)
|
|
sl@0
|
435 |
{
|
|
sl@0
|
436 |
asm("stmfd sp!, {r4-r9,lr} ");
|
|
sl@0
|
437 |
asm("mov r4,r1"); // r4=iCount
|
|
sl@0
|
438 |
asm("mov r5,r0"); // r5=iEntries
|
|
sl@0
|
439 |
asm("bl HeapSortUnsigned ");
|
|
sl@0
|
440 |
__POPRET("r4-r9,");
|
|
sl@0
|
441 |
|
|
sl@0
|
442 |
// Heap sort list of unsigned integers
|
|
sl@0
|
443 |
// List address in r5, count in r4
|
|
sl@0
|
444 |
// r4=ss, r6=sh, r7=si
|
|
sl@0
|
445 |
// r8,r9 modified
|
|
sl@0
|
446 |
asm("HeapSortUnsigned: ");
|
|
sl@0
|
447 |
asm("cmp r4, #1 ");
|
|
sl@0
|
448 |
__JUMP(le,lr);
|
|
sl@0
|
449 |
asm("mov r6, r4, lsr #1 ");
|
|
sl@0
|
450 |
asm("hsu_loop_start1: ");
|
|
sl@0
|
451 |
asm("sub r6, r6, #1 ");
|
|
sl@0
|
452 |
asm("ldr r7, [r5, r6, lsl #2] ");
|
|
sl@0
|
453 |
asm("mov r8, r6 ");
|
|
sl@0
|
454 |
asm("mov r9, r6 ");
|
|
sl@0
|
455 |
asm("b hsu_loop_start2 ");
|
|
sl@0
|
456 |
asm("hsu_loop_inner: ");
|
|
sl@0
|
457 |
asm("ldr r0, [r5, r8, lsl #2] ");
|
|
sl@0
|
458 |
asm("str r0, [r5, r9, lsl #2] ");
|
|
sl@0
|
459 |
asm("mov r9, r8 ");
|
|
sl@0
|
460 |
asm("hsu_loop_start2: ");
|
|
sl@0
|
461 |
asm("add r8, r8, #1 ");
|
|
sl@0
|
462 |
asm("add r8, r8, r8 ");
|
|
sl@0
|
463 |
asm("cmp r8, r4 ");
|
|
sl@0
|
464 |
asm("bgt hsu_loop_inner_end ");
|
|
sl@0
|
465 |
asm("add r0, r5, r8, lsl #2 ");
|
|
sl@0
|
466 |
asm("ldmneda r0, {r1,r2} ");
|
|
sl@0
|
467 |
asm("ldreq r1, [r0, #-4] ");
|
|
sl@0
|
468 |
asm("subeq r8, r8, #1 ");
|
|
sl@0
|
469 |
asm("beq hsu_loop_inner2 ");
|
|
sl@0
|
470 |
asm("cmp r1, r2 ");
|
|
sl@0
|
471 |
asm("subhi r8, r8, #1 ");
|
|
sl@0
|
472 |
asm("movls r1, r2 ");
|
|
sl@0
|
473 |
asm("hsu_loop_inner2: ");
|
|
sl@0
|
474 |
asm("cmp r1, r7 ");
|
|
sl@0
|
475 |
asm("bhi hsu_loop_inner ");
|
|
sl@0
|
476 |
asm("hsu_loop_inner_end: ");
|
|
sl@0
|
477 |
asm("str r7, [r5, r9, lsl #2] ");
|
|
sl@0
|
478 |
asm("cmp r6, #0 ");
|
|
sl@0
|
479 |
asm("bne hsu_loop_start1 ");
|
|
sl@0
|
480 |
asm("sub r4, r4, #1 ");
|
|
sl@0
|
481 |
asm("ldr r7, [r5, r4, lsl #2] ");
|
|
sl@0
|
482 |
asm("ldr r0, [r5, #0] ");
|
|
sl@0
|
483 |
asm("str r0, [r5, r4, lsl #2] ");
|
|
sl@0
|
484 |
asm("cmp r4, #1 ");
|
|
sl@0
|
485 |
asm("mov r8, r6 ");
|
|
sl@0
|
486 |
asm("mov r9, r6 ");
|
|
sl@0
|
487 |
asm("bgt hsu_loop_start2 ");
|
|
sl@0
|
488 |
asm("str r7, [r5, #0] ");
|
|
sl@0
|
489 |
__JUMP(,lr);
|
|
sl@0
|
490 |
}
|
|
sl@0
|
491 |
|
|
sl@0
|
492 |
#ifndef __KERNEL_MODE__
|
|
sl@0
|
493 |
EXPORT_C __NAKED__ void RPointerArrayBase::HeapSort(TGeneralLinearOrder /*anOrder*/)
|
|
sl@0
|
494 |
{
|
|
sl@0
|
495 |
asm("stmfd sp!, {r3-r11,lr} ");
|
|
sl@0
|
496 |
// r3 is caller save
|
|
sl@0
|
497 |
__EH_FRAME_ADDRESS(sp,4)
|
|
sl@0
|
498 |
// we can push the callee save regs
|
|
sl@0
|
499 |
__EH_FRAME_PUSH2(r4-r11,lr)
|
|
sl@0
|
500 |
asm("ldmia r0, {r4,r5} "); // r4=iCount, r5=iEntries
|
|
sl@0
|
501 |
asm("mov r10, r1 "); // r10=anOrder
|
|
sl@0
|
502 |
asm("bl HeapSortPointers ");
|
|
sl@0
|
503 |
__POPRET("r3-r11,");
|
|
sl@0
|
504 |
|
|
sl@0
|
505 |
// Heap sort list of pointers
|
|
sl@0
|
506 |
// List address in r5, count in r4, r10 points to ordering function
|
|
sl@0
|
507 |
// r4=ss, r6=sh, r7=si
|
|
sl@0
|
508 |
// r8,r9,r11 modified
|
|
sl@0
|
509 |
asm("HeapSortPointers: ");
|
|
sl@0
|
510 |
asm("cmp r4, #1 ");
|
|
sl@0
|
511 |
__JUMP(le,lr);
|
|
sl@0
|
512 |
asm("mov r11, lr ");
|
|
sl@0
|
513 |
asm("mov r6, r4, lsr #1 ");
|
|
sl@0
|
514 |
asm("hsp_loop_start1: ");
|
|
sl@0
|
515 |
asm("sub r6, r6, #1 ");
|
|
sl@0
|
516 |
asm("ldr r7, [r5, r6, lsl #2] ");
|
|
sl@0
|
517 |
asm("mov r8, r6 ");
|
|
sl@0
|
518 |
asm("mov r9, r6 ");
|
|
sl@0
|
519 |
asm("b hsp_loop_start2 ");
|
|
sl@0
|
520 |
asm("hsp_loop_inner: ");
|
|
sl@0
|
521 |
asm("ldr r0, [r5, r8, lsl #2] ");
|
|
sl@0
|
522 |
asm("str r0, [r5, r9, lsl #2] ");
|
|
sl@0
|
523 |
asm("mov r9, r8 ");
|
|
sl@0
|
524 |
asm("hsp_loop_start2: ");
|
|
sl@0
|
525 |
asm("add r8, r8, #1 ");
|
|
sl@0
|
526 |
asm("add r8, r8, r8 ");
|
|
sl@0
|
527 |
asm("cmp r8, r4 ");
|
|
sl@0
|
528 |
asm("bgt hsp_loop_inner_end ");
|
|
sl@0
|
529 |
asm("subeq r8, r8, #1 ");
|
|
sl@0
|
530 |
asm("beq hsp_loop_inner2 ");
|
|
sl@0
|
531 |
asm("add r0, r5, r8, lsl #2 ");
|
|
sl@0
|
532 |
asm("ldmda r0, {r0,r1} ");
|
|
sl@0
|
533 |
__JUMPL(10);
|
|
sl@0
|
534 |
asm("cmp r0, #0 ");
|
|
sl@0
|
535 |
asm("subgt r8, r8, #1 ");
|
|
sl@0
|
536 |
asm("hsp_loop_inner2: ");
|
|
sl@0
|
537 |
asm("ldr r0, [r5, r8, lsl #2] ");
|
|
sl@0
|
538 |
asm("mov r1, r7 ");
|
|
sl@0
|
539 |
__JUMPL(10);
|
|
sl@0
|
540 |
asm("cmp r0, #0 ");
|
|
sl@0
|
541 |
asm("bgt hsp_loop_inner ");
|
|
sl@0
|
542 |
asm("hsp_loop_inner_end: ");
|
|
sl@0
|
543 |
asm("str r7, [r5, r9, lsl #2] ");
|
|
sl@0
|
544 |
asm("cmp r6, #0 ");
|
|
sl@0
|
545 |
asm("bne hsp_loop_start1 ");
|
|
sl@0
|
546 |
asm("sub r4, r4, #1 ");
|
|
sl@0
|
547 |
asm("ldr r7, [r5, r4, lsl #2] ");
|
|
sl@0
|
548 |
asm("ldr r0, [r5, #0] ");
|
|
sl@0
|
549 |
asm("str r0, [r5, r4, lsl #2] ");
|
|
sl@0
|
550 |
asm("cmp r4, #1 ");
|
|
sl@0
|
551 |
asm("mov r8, r6 ");
|
|
sl@0
|
552 |
asm("mov r9, r6 ");
|
|
sl@0
|
553 |
asm("bgt hsp_loop_start2 ");
|
|
sl@0
|
554 |
asm("str r7, [r5, #0] ");
|
|
sl@0
|
555 |
__JUMP(,r11);
|
|
sl@0
|
556 |
}
|
|
sl@0
|
557 |
#endif // __KERNEL_MODE__
|
|
sl@0
|
558 |
|
|
sl@0
|
559 |
EXPORT_C __NAKED__ TAny* RArrayBase::At(TInt /*anIndex*/) const
|
|
sl@0
|
560 |
{
|
|
sl@0
|
561 |
asm("ldmia r0, {r2,r3,r12} "); // r2=iCount, r3=iEntries, r12=iEntrySize
|
|
sl@0
|
562 |
asm("cmp r1, #0 "); // check anIndex>=0
|
|
sl@0
|
563 |
asm("cmpge r2, r1 "); // if so, check iCount>anIndex
|
|
sl@0
|
564 |
asm("mlagt r0, r1, r12, r3 "); // if ok, r0=anIndex*iEntrySize+iEntries
|
|
sl@0
|
565 |
#ifdef __CPU_ARMV6
|
|
sl@0
|
566 |
asm("ble 1f ");
|
|
sl@0
|
567 |
__JUMP(,lr);
|
|
sl@0
|
568 |
#else
|
|
sl@0
|
569 |
__JUMP(gt,lr);
|
|
sl@0
|
570 |
#endif
|
|
sl@0
|
571 |
asm("1: ");
|
|
sl@0
|
572 |
asm("b " CSM_Z18PanicBadArrayIndexv);
|
|
sl@0
|
573 |
}
|
|
sl@0
|
574 |
|
|
sl@0
|
575 |
EXPORT_C __NAKED__ TInt RArrayBase::Append(const TAny* /*anEntry*/)
|
|
sl@0
|
576 |
{
|
|
sl@0
|
577 |
asm("stmfd sp!, {lr} ");
|
|
sl@0
|
578 |
asm("ldmia r0, {r3,r12} "); // r3=iCount, r12=iEntries
|
|
sl@0
|
579 |
asm("ldr r2, [r0, #%a0]" : : "i" _FOFF(RArrayBase,iAllocated));
|
|
sl@0
|
580 |
asm("cmp r3, r2 ");
|
|
sl@0
|
581 |
asm("beq simple_append_1 ");
|
|
sl@0
|
582 |
asm("simple_append_0: ");
|
|
sl@0
|
583 |
asm("add r2, r3, #1 ");
|
|
sl@0
|
584 |
asm("str r2, [r0] "); // iCount++
|
|
sl@0
|
585 |
asm("ldr r2, [r0, #%a0]" : : "i" _FOFF(RArrayBase,iEntrySize));
|
|
sl@0
|
586 |
asm("mla r0, r2, r3, r12 "); // r0=iEntries+iEntrySize*iCount
|
|
sl@0
|
587 |
asm("bl wordmove "); // r1=anEntry, r2=iEntrySize, do copy
|
|
sl@0
|
588 |
asm("mov r0, #0 "); // return KErrNone;
|
|
sl@0
|
589 |
__POPRET("");
|
|
sl@0
|
590 |
|
|
sl@0
|
591 |
asm("simple_append_1: ");
|
|
sl@0
|
592 |
asm("stmfd sp!, {r0,r1,r2} ");
|
|
sl@0
|
593 |
asm("bl " CSM_ZN10RArrayBase4GrowEv);
|
|
sl@0
|
594 |
asm("cmp r0, #0 ");
|
|
sl@0
|
595 |
asm("bne simple_append_2 ");
|
|
sl@0
|
596 |
asm("ldmfd sp!, {r0,r1,r2} ");
|
|
sl@0
|
597 |
asm("ldmia r0, {r3, r12} ");
|
|
sl@0
|
598 |
asm("b simple_append_0 ");
|
|
sl@0
|
599 |
asm("simple_append_2: "); // error enlarging array
|
|
sl@0
|
600 |
asm("add sp, sp, #12 ");
|
|
sl@0
|
601 |
__POPRET("");
|
|
sl@0
|
602 |
}
|
|
sl@0
|
603 |
|
|
sl@0
|
604 |
EXPORT_C __NAKED__ TInt RArrayBase::Find(const TAny* /*anEntry*/) const
|
|
sl@0
|
605 |
{
|
|
sl@0
|
606 |
asm("ldmia r0, {r0,r2,r3,r12} "); // r0=count, r2=iEntries, r3=iEntrySize, r12=iKeyOffset
|
|
sl@0
|
607 |
asm("stmfd sp!, {r4,lr} "); // save r4,lr
|
|
sl@0
|
608 |
asm("subs r0, r0, #1 "); // r0 = count-1
|
|
sl@0
|
609 |
asm("blt 0f "); // skip if count was zero
|
|
sl@0
|
610 |
asm("ldr r1, [r1, r12] "); // r1=key of match entry
|
|
sl@0
|
611 |
asm("sub r4, r0, #1 "); // r4 = iCount-2
|
|
sl@0
|
612 |
asm("1: ");
|
|
sl@0
|
613 |
asm("ldr lr, [r2, r12] "); // lr=key of current entry
|
|
sl@0
|
614 |
asm("add r2, r2, r3 "); // step r2 to next entry
|
|
sl@0
|
615 |
asm("subs r0, r0, #1 "); // C=1 iff this isn't last entry
|
|
sl@0
|
616 |
asm("teq lr, r1 "); // check for match - C unaffected
|
|
sl@0
|
617 |
asm("bhi 1b "); // loop if C=1 & Z=0, i.e. if no match and this isn't last entry
|
|
sl@0
|
618 |
asm("0: ");
|
|
sl@0
|
619 |
asm("mvnne r0, #0 "); // if no match, return -1
|
|
sl@0
|
620 |
asm("subeq r0, r4, r0 "); // if match, index = (iCount-2)-r0
|
|
sl@0
|
621 |
__POPRET("r4,");
|
|
sl@0
|
622 |
}
|
|
sl@0
|
623 |
|
|
sl@0
|
624 |
EXPORT_C __NAKED__ TInt RArrayBase::Find(const TAny* /*anEntry*/, TGeneralIdentityRelation /*anIdentity*/) const
|
|
sl@0
|
625 |
{
|
|
sl@0
|
626 |
asm("stmfd sp!, {r4-r10,lr} "); // save r4-r10,lr
|
|
sl@0
|
627 |
__EH_FRAME_PUSH2(r4-r10,lr)
|
|
sl@0
|
628 |
asm("ldmia r0, {r4,r5,r6} "); // r4=count, r5=iEntries, r6=iEntrySize
|
|
sl@0
|
629 |
asm("mov r8, r1 "); // r8=anEntry
|
|
sl@0
|
630 |
asm("mov r9, r2 "); // r9=anIdentity
|
|
sl@0
|
631 |
asm("sub r7, r4, #1 "); // r7=iCount-1
|
|
sl@0
|
632 |
asm("b simple_find2_start ");
|
|
sl@0
|
633 |
asm("simple_find2_loop: ");
|
|
sl@0
|
634 |
asm("mov r1, r5 "); // r1->current entry
|
|
sl@0
|
635 |
asm("mov r0, r8 "); // r0=anEntry
|
|
sl@0
|
636 |
__JUMPL(9);
|
|
sl@0
|
637 |
asm("cmp r0, #0 ");
|
|
sl@0
|
638 |
asm("bne simple_find2_return ");
|
|
sl@0
|
639 |
asm("add r5, r5, r6 "); // else step to next entry
|
|
sl@0
|
640 |
asm("simple_find2_start: ");
|
|
sl@0
|
641 |
asm("subs r4, r4, #1 ");
|
|
sl@0
|
642 |
asm("bpl simple_find2_loop ");
|
|
sl@0
|
643 |
asm("add r4, r7, #1 "); // no match, arrange to return -1
|
|
sl@0
|
644 |
asm("simple_find2_return: ");
|
|
sl@0
|
645 |
asm("sub r0, r7, r4 "); // index=count-r4
|
|
sl@0
|
646 |
__POPRET("r4-r10,");
|
|
sl@0
|
647 |
}
|
|
sl@0
|
648 |
|
|
sl@0
|
649 |
EXPORT_C __NAKED__ TInt RArrayBase::BinarySearchSigned(const TAny* /*anEntry*/, TInt& /*anIndex*/) const
|
|
sl@0
|
650 |
{
|
|
sl@0
|
651 |
asm("mov r3, #0 ");
|
|
sl@0
|
652 |
// fall through
|
|
sl@0
|
653 |
}
|
|
sl@0
|
654 |
|
|
sl@0
|
655 |
EXPORT_C __NAKED__ TInt RArrayBase::BinarySearchSigned(const TAny* /*anEntry*/, TInt& /*anIndex*/, TInt /*aMode*/) const
|
|
sl@0
|
656 |
{
|
|
sl@0
|
657 |
asm("stmfd sp!, {r4-r8,lr} ");
|
|
sl@0
|
658 |
__EH_FRAME_PUSH2(r4-r8,lr)
|
|
sl@0
|
659 |
asm("mov r8, r2 "); // r8=&anIndex
|
|
sl@0
|
660 |
asm("ldmia r0, {r2,r4,r5,r6} "); // r2=count, r3=iEntries, r5=entry size, r6=key offset
|
|
sl@0
|
661 |
asm("cmp r5, #4 "); // check for 4 byte entries
|
|
sl@0
|
662 |
asm("ldr r1, [r1, r6] "); // r1=match key
|
|
sl@0
|
663 |
asm("beq 1f "); // if 4 byte entries, call simpler routine
|
|
sl@0
|
664 |
asm("bl BinarySearchSignedKey "); // if not, call general routine
|
|
sl@0
|
665 |
asm("b 2f ");
|
|
sl@0
|
666 |
asm("1: ");
|
|
sl@0
|
667 |
asm("bl BinarySearchSigned "); // use simpler routine for 4 byte entries
|
|
sl@0
|
668 |
asm("2: ");
|
|
sl@0
|
669 |
asm("str r2, [r8] ");
|
|
sl@0
|
670 |
__POPRET("r4-r8,");
|
|
sl@0
|
671 |
|
|
sl@0
|
672 |
// Binary search list of signed integers
|
|
sl@0
|
673 |
// Match key in r1
|
|
sl@0
|
674 |
// List address in r4
|
|
sl@0
|
675 |
// Count in r2
|
|
sl@0
|
676 |
// Match mode in r3
|
|
sl@0
|
677 |
// EntrySize in r5, KeyOffset in r6
|
|
sl@0
|
678 |
// Return with: r0=0 if match found, r0 nonzero otherwise
|
|
sl@0
|
679 |
// r2=index of match or next higher
|
|
sl@0
|
680 |
// r7 modified
|
|
sl@0
|
681 |
asm("BinarySearchSignedKey: ");
|
|
sl@0
|
682 |
#ifdef _DEBUG
|
|
sl@0
|
683 |
asm("cmp r3, #%a0" : : "i" ((TInt)EArrayFindMode_Limit) );
|
|
sl@0
|
684 |
asm("bhs PanicBadArrayFindMode ");
|
|
sl@0
|
685 |
#endif
|
|
sl@0
|
686 |
asm("mov r3, r3, lsl #30 "); // match mode -> bits 30,31 (00000000=any, 40000000=first, 80000000=last)
|
|
sl@0
|
687 |
asm("orr r3, r3, #1 "); // set NOT FOUND flag
|
|
sl@0
|
688 |
asm("cmp r2, #0 "); // r2 will be right index
|
|
sl@0
|
689 |
asm("beq 0f ");
|
|
sl@0
|
690 |
asm("mov r7, #0 "); // r7 will be left index
|
|
sl@0
|
691 |
asm("1: ");
|
|
sl@0
|
692 |
asm("add r12, r2, r7 ");
|
|
sl@0
|
693 |
asm("mov r12, r12, lsr #1 "); // r12 = mid index
|
|
sl@0
|
694 |
asm("mla r0, r12, r5, r6 "); // r0 = key offset + entry size * mid index
|
|
sl@0
|
695 |
asm("ldr r0, [r4, r0] "); // r0 = key[mid]
|
|
sl@0
|
696 |
asm("subs r0, r0, r1 "); // r0 = entry[mid] - match
|
|
sl@0
|
697 |
asm("beq 2f "); // if match branch out
|
|
sl@0
|
698 |
asm("3: ");
|
|
sl@0
|
699 |
asm("addlt r7, r12, #1 "); // else if entry<match left=mid+1
|
|
sl@0
|
700 |
asm("movgt r2, r12 "); // else if entry>match right=mid
|
|
sl@0
|
701 |
asm("subs r0, r2, r7 "); // right > left ?
|
|
sl@0
|
702 |
asm("bgt 1b "); // r0 = 0 when loop terminates
|
|
sl@0
|
703 |
asm("0: ");
|
|
sl@0
|
704 |
asm("tst r3, #1 "); // test not found flag
|
|
sl@0
|
705 |
asm("mvnnes r0, #0 "); // if set r0=-1 = KErrNotFound
|
|
sl@0
|
706 |
__JUMP(,lr);
|
|
sl@0
|
707 |
asm("2: ");
|
|
sl@0
|
708 |
asm("bics r3, r3, #1 "); // clear NOT FOUND flag, test for find mode ANY (Z set if so)
|
|
sl@0
|
709 |
asm("bne 3b "); // if not, V=0 (left from subs), N=1 for last, 0 for first, Z=0 => LAST->LT FIRST->GT
|
|
sl@0
|
710 |
asm("mov r2, r12 "); // if so, r2 = mid
|
|
sl@0
|
711 |
__JUMP(,lr); // and return with r0 = 0
|
|
sl@0
|
712 |
}
|
|
sl@0
|
713 |
|
|
sl@0
|
714 |
EXPORT_C __NAKED__ TInt RArrayBase::BinarySearchUnsigned(const TAny* /*anEntry*/, TInt& /*anIndex*/) const
|
|
sl@0
|
715 |
{
|
|
sl@0
|
716 |
asm("mov r3, #0 ");
|
|
sl@0
|
717 |
// fall through
|
|
sl@0
|
718 |
}
|
|
sl@0
|
719 |
|
|
sl@0
|
720 |
EXPORT_C __NAKED__ TInt RArrayBase::BinarySearchUnsigned(const TAny* /*anEntry*/, TInt& /*anIndex*/, TInt /*aMode*/) const
|
|
sl@0
|
721 |
{
|
|
sl@0
|
722 |
asm("stmfd sp!, {r4-r8,lr} ");
|
|
sl@0
|
723 |
__EH_FRAME_PUSH2(r4-r8,lr)
|
|
sl@0
|
724 |
asm("mov r8, r2 "); // r8=&anIndex
|
|
sl@0
|
725 |
asm("ldmia r0, {r2,r4,r5,r6} "); // r2=count, r4=iEntries, r5=entry size, r6=key offset
|
|
sl@0
|
726 |
asm("cmp r5, #4 "); // check for 4 byte entries
|
|
sl@0
|
727 |
asm("ldr r1, [r1, r6] "); // r1=match key
|
|
sl@0
|
728 |
asm("beq 1f "); // if 4 byte entries, call simpler routine
|
|
sl@0
|
729 |
asm("bl BinarySearchUnsignedKey "); // if not, call general routine
|
|
sl@0
|
730 |
asm("b 2f ");
|
|
sl@0
|
731 |
asm("1: ");
|
|
sl@0
|
732 |
asm("bl BinarySearchUnsigned "); // use simpler routine for 4 byte entries
|
|
sl@0
|
733 |
asm("2: ");
|
|
sl@0
|
734 |
asm("str r2, [r8] ");
|
|
sl@0
|
735 |
__POPRET("r4-r8,");
|
|
sl@0
|
736 |
|
|
sl@0
|
737 |
// Binary search list of unsigned integers
|
|
sl@0
|
738 |
// Match key in r1
|
|
sl@0
|
739 |
// List address in r4
|
|
sl@0
|
740 |
// Count in r2
|
|
sl@0
|
741 |
// Match mode in r3
|
|
sl@0
|
742 |
// EntrySize in r5, KeyOffset in r6
|
|
sl@0
|
743 |
// Return with: r0=0 if match found, r0 nonzero otherwise
|
|
sl@0
|
744 |
// r2=index of match or next higher
|
|
sl@0
|
745 |
// r7 modified
|
|
sl@0
|
746 |
asm("BinarySearchUnsignedKey: ");
|
|
sl@0
|
747 |
#ifdef _DEBUG
|
|
sl@0
|
748 |
asm("cmp r3, #%a0" : : "i" ((TInt)EArrayFindMode_Limit) );
|
|
sl@0
|
749 |
asm("bhs PanicBadArrayFindMode ");
|
|
sl@0
|
750 |
#endif
|
|
sl@0
|
751 |
asm("mov r3, r3, lsl #30 "); // match mode -> bits 30,31 (00000000=any, 40000000=first, 80000000=last)
|
|
sl@0
|
752 |
asm("orr r3, r3, #1 "); // set NOT FOUND flag
|
|
sl@0
|
753 |
asm("cmp r2, #0 "); // r2 will be right index
|
|
sl@0
|
754 |
asm("beq 0f ");
|
|
sl@0
|
755 |
asm("mov r7, #0 "); // r7 will be left index
|
|
sl@0
|
756 |
asm("1: ");
|
|
sl@0
|
757 |
asm("add r12, r2, r7 ");
|
|
sl@0
|
758 |
asm("mov r12, r12, lsr #1 "); // r12 = mid index
|
|
sl@0
|
759 |
asm("mla r0, r12, r5, r6 "); // r0 = key offset + entry size * mid index
|
|
sl@0
|
760 |
asm("ldr r0, [r4, r0] "); // r0 = key[mid]
|
|
sl@0
|
761 |
asm("subs r0, r1, r0 "); // r0 = match - entry[mid]
|
|
sl@0
|
762 |
asm("beq 2f "); // if match branch out
|
|
sl@0
|
763 |
asm("3: ");
|
|
sl@0
|
764 |
asm("addhi r7, r12, #1 "); // else if entry<match left=mid+1 HI = C &~ Z
|
|
sl@0
|
765 |
asm("movlo r2, r12 "); // else if entry>match right=mid LO = ~C
|
|
sl@0
|
766 |
asm("subs r0, r2, r7 "); // right > left ?
|
|
sl@0
|
767 |
asm("bgt 1b "); // r0 = 0 when loop terminates
|
|
sl@0
|
768 |
asm("0: ");
|
|
sl@0
|
769 |
asm("tst r3, #1 "); // test not found flag
|
|
sl@0
|
770 |
asm("mvnnes r0, #0 "); // if set r0=-1 = KErrNotFound
|
|
sl@0
|
771 |
__JUMP(,lr);
|
|
sl@0
|
772 |
asm("2: "); // N=0 Z=1 C=1 V=0 r0=0 here
|
|
sl@0
|
773 |
asm("bics r3, r3, #1 "); // clear NOT FOUND flag, test for find mode ANY (Z set if so)
|
|
sl@0
|
774 |
asm("cmpne r3, #0x60000000 "); // HI if LAST, LO if FIRST
|
|
sl@0
|
775 |
asm("bne 3b "); // if not ANY, branch back
|
|
sl@0
|
776 |
asm("mov r2, r12 "); // if ANY, r2 = mid
|
|
sl@0
|
777 |
__JUMP(,lr); // and return with r0 = 0
|
|
sl@0
|
778 |
}
|
|
sl@0
|
779 |
|
|
sl@0
|
780 |
EXPORT_C __NAKED__ TInt RArrayBase::BinarySearch(const TAny* /*anEntry*/, TInt& /*anIndex*/, TGeneralLinearOrder /*anOrder*/, TInt /*aMode*/) const
|
|
sl@0
|
781 |
{
|
|
sl@0
|
782 |
asm("stmfd sp!, {r3-r11,lr} ");
|
|
sl@0
|
783 |
// r3 is caller save
|
|
sl@0
|
784 |
__EH_FRAME_ADDRESS(sp,4)
|
|
sl@0
|
785 |
// we can push the callee save regs
|
|
sl@0
|
786 |
__EH_FRAME_PUSH2(r4-r11,lr)
|
|
sl@0
|
787 |
asm("ldmia r0, {r5,r6,r11} "); // r5=count, r6=iEntries, r11=entry size
|
|
sl@0
|
788 |
asm("ldr r9, [sp, #40] "); // r9 = aMode
|
|
sl@0
|
789 |
asm("mov r4, r1 "); // r4=anEntry
|
|
sl@0
|
790 |
asm("mov r7, r3 "); // r7=anOrder
|
|
sl@0
|
791 |
asm("bl BinarySearchEntries ");
|
|
sl@0
|
792 |
asm("str r5, [r2] "); // store index
|
|
sl@0
|
793 |
__POPRET("r3-r11,");
|
|
sl@0
|
794 |
|
|
sl@0
|
795 |
// Binary search list of general entries
|
|
sl@0
|
796 |
// Pointer to match value in r4
|
|
sl@0
|
797 |
// List address in r6
|
|
sl@0
|
798 |
// Count in r5
|
|
sl@0
|
799 |
// Match mode in r9
|
|
sl@0
|
800 |
// Pointer to ordering function in r7
|
|
sl@0
|
801 |
// Entry size in r11
|
|
sl@0
|
802 |
// Return with: r0=0 if match found, r0 nonzero otherwise
|
|
sl@0
|
803 |
// r5=index of match or next higher
|
|
sl@0
|
804 |
// r9,r10 modified
|
|
sl@0
|
805 |
// r2 preserved
|
|
sl@0
|
806 |
asm("BinarySearchEntries: ");
|
|
sl@0
|
807 |
#ifdef _DEBUG
|
|
sl@0
|
808 |
asm("cmp r9, #%a0" : : "i" ((TInt)EArrayFindMode_Limit) );
|
|
sl@0
|
809 |
asm("bhs PanicBadArrayFindMode ");
|
|
sl@0
|
810 |
#endif
|
|
sl@0
|
811 |
asm("stmfd sp!, {r2,lr} ");
|
|
sl@0
|
812 |
asm("movs r9, r9, lsl #30 "); // match mode -> bits 30,31 (00000000=any, 40000000=first, 80000000=last)
|
|
sl@0
|
813 |
asm("eorne r9, r9, #0xC0000000 "); // match mode -> bits 30,31 (00000000=any, 80000000=first, 40000000=last)
|
|
sl@0
|
814 |
asm("orr r9, r9, #1 "); // set NOT FOUND flag
|
|
sl@0
|
815 |
asm("cmp r5, #0 "); // r5 will be right index
|
|
sl@0
|
816 |
asm("beq 0f ");
|
|
sl@0
|
817 |
asm("mov r10, #0 "); // r10 will be left index
|
|
sl@0
|
818 |
asm("1: ");
|
|
sl@0
|
819 |
asm("add r8, r5, r10 ");
|
|
sl@0
|
820 |
asm("mov r8, r8, lsr #1 "); // r8 = mid index
|
|
sl@0
|
821 |
asm("mla r1, r8, r11, r6 "); // r1 = r8*entry size + list address = &entry[mid]
|
|
sl@0
|
822 |
asm("mov r0, r4 "); // r0 points to match value
|
|
sl@0
|
823 |
__JUMPL(7); // call ordering function (match, entry)
|
|
sl@0
|
824 |
asm("cmp r0, #0 ");
|
|
sl@0
|
825 |
asm("biceq r9, r9, #1 "); // if match clear NOT FOUND flag
|
|
sl@0
|
826 |
asm("addeqs r0, r0, r9 "); // and add match mode to r0 (>0 if LAST, <0 if FIRST, 0 if ANY)
|
|
sl@0
|
827 |
asm("beq 2f "); // branch out if match and ANY
|
|
sl@0
|
828 |
asm("addgt r10, r8, #1 "); // else if match > entry, left = mid + 1
|
|
sl@0
|
829 |
asm("movlt r5, r8 "); // else if match < entry, right = mid
|
|
sl@0
|
830 |
asm("subs r0, r5, r10 "); // loop if right > left
|
|
sl@0
|
831 |
asm("bgt 1b "); // finish loop with r0 = 0
|
|
sl@0
|
832 |
asm("0: ");
|
|
sl@0
|
833 |
asm("tst r9, #1 "); // test not found flag
|
|
sl@0
|
834 |
asm("mvnnes r0, #0 "); // if set r0=-1 = KErrNotFound
|
|
sl@0
|
835 |
__POPRET("r2,");
|
|
sl@0
|
836 |
asm("2: ");
|
|
sl@0
|
837 |
asm("mov r5, r8 "); // if ANY, r8 = mid
|
|
sl@0
|
838 |
__POPRET("r2,"); // and return with r0 = 0, Z=1
|
|
sl@0
|
839 |
}
|
|
sl@0
|
840 |
|
|
sl@0
|
841 |
EXPORT_C __NAKED__ TInt RArrayBase::FindIsqSigned(const TAny* /*anEntry*/) const
|
|
sl@0
|
842 |
{
|
|
sl@0
|
843 |
asm("mov r2, #0 ");
|
|
sl@0
|
844 |
// fall through
|
|
sl@0
|
845 |
}
|
|
sl@0
|
846 |
|
|
sl@0
|
847 |
EXPORT_C __NAKED__ TInt RArrayBase::FindIsqSigned(const TAny* /*anEntry*/, TInt /*aMode*/) const
|
|
sl@0
|
848 |
{
|
|
sl@0
|
849 |
#ifdef __EABI__
|
|
sl@0
|
850 |
// sp needs to be aligned correctly
|
|
sl@0
|
851 |
asm("stmfd sp!, {r4-r8,lr} ");
|
|
sl@0
|
852 |
__EH_FRAME_PUSH2(r4-r8,lr)
|
|
sl@0
|
853 |
#else
|
|
sl@0
|
854 |
asm("stmfd sp!, {r4-r7,lr} ");
|
|
sl@0
|
855 |
#endif
|
|
sl@0
|
856 |
asm("mov r3, r2 "); // r3 = match mode
|
|
sl@0
|
857 |
asm("ldmia r0, {r2,r4,r5,r6} "); // r2=count, r4=iEntries, r5=entry size, r6=key offset
|
|
sl@0
|
858 |
asm("cmp r5, #4 "); // check for 4 byte entries
|
|
sl@0
|
859 |
asm("ldr r1, [r1, r6] "); // r1=match key
|
|
sl@0
|
860 |
asm("beq 1f "); // use simpler routine for 4 byte entries
|
|
sl@0
|
861 |
asm("bl BinarySearchSignedKey "); // else call general routine
|
|
sl@0
|
862 |
asm("b 2f ");
|
|
sl@0
|
863 |
asm("1: ");
|
|
sl@0
|
864 |
asm("bl BinarySearchSigned ");
|
|
sl@0
|
865 |
asm("2: ");
|
|
sl@0
|
866 |
asm("moveq r0, r2 "); // if match r0=index else r0=KErrNotFound
|
|
sl@0
|
867 |
#ifdef __EABI__
|
|
sl@0
|
868 |
__POPRET("r4-r8,");
|
|
sl@0
|
869 |
#else
|
|
sl@0
|
870 |
__POPRET("r4-r7,");
|
|
sl@0
|
871 |
#endif
|
|
sl@0
|
872 |
}
|
|
sl@0
|
873 |
|
|
sl@0
|
874 |
EXPORT_C __NAKED__ TInt RArrayBase::FindIsqUnsigned(const TAny* /*anEntry*/) const
|
|
sl@0
|
875 |
{
|
|
sl@0
|
876 |
asm("mov r2, #0 ");
|
|
sl@0
|
877 |
// fall through
|
|
sl@0
|
878 |
}
|
|
sl@0
|
879 |
|
|
sl@0
|
880 |
EXPORT_C __NAKED__ TInt RArrayBase::FindIsqUnsigned(const TAny* /*anEntry*/, TInt /*aMode*/) const
|
|
sl@0
|
881 |
{
|
|
sl@0
|
882 |
#ifdef __EABI__
|
|
sl@0
|
883 |
// sp needs to be aligned correctly
|
|
sl@0
|
884 |
asm("stmfd sp!, {r4-r8,lr} ");
|
|
sl@0
|
885 |
__EH_FRAME_PUSH2(r4-r8,lr)
|
|
sl@0
|
886 |
#else
|
|
sl@0
|
887 |
asm("stmfd sp!, {r4-r7,lr} ");
|
|
sl@0
|
888 |
#endif
|
|
sl@0
|
889 |
asm("mov r3, r2 "); // r3 = match mode
|
|
sl@0
|
890 |
asm("ldmia r0, {r2,r4,r5,r6} "); // r2=count, r4=iEntries, r5=entry size, r6=key offset
|
|
sl@0
|
891 |
asm("cmp r5, #4 "); // check for 4 byte entries
|
|
sl@0
|
892 |
asm("ldr r1, [r1, r6] "); // r1=match key
|
|
sl@0
|
893 |
asm("beq 1f "); // use simpler routine for 4 byte entries
|
|
sl@0
|
894 |
asm("bl BinarySearchUnsignedKey "); // else call general routine
|
|
sl@0
|
895 |
asm("b 2f ");
|
|
sl@0
|
896 |
asm("1: ");
|
|
sl@0
|
897 |
asm("bl BinarySearchUnsigned ");
|
|
sl@0
|
898 |
asm("2: ");
|
|
sl@0
|
899 |
asm("moveq r0, r2 "); // if match r0=index else r0=KErrNotFound
|
|
sl@0
|
900 |
#ifdef __EABI__
|
|
sl@0
|
901 |
__POPRET("r4-r8,");
|
|
sl@0
|
902 |
#else
|
|
sl@0
|
903 |
__POPRET("r4-r7,");
|
|
sl@0
|
904 |
#endif
|
|
sl@0
|
905 |
}
|
|
sl@0
|
906 |
|
|
sl@0
|
907 |
EXPORT_C __NAKED__ TInt RArrayBase::FindIsq(const TAny* /*anEntry*/, TGeneralLinearOrder /*anOrder*/) const
|
|
sl@0
|
908 |
{
|
|
sl@0
|
909 |
asm("mov r3, #0 ");
|
|
sl@0
|
910 |
// fall through
|
|
sl@0
|
911 |
}
|
|
sl@0
|
912 |
|
|
sl@0
|
913 |
EXPORT_C __NAKED__ TInt RArrayBase::FindIsq(const TAny* /*anEntry*/, TGeneralLinearOrder /*anOrder*/, TInt /*aMode*/) const
|
|
sl@0
|
914 |
{
|
|
sl@0
|
915 |
asm("stmfd sp!, {r3-r11,lr} ");
|
|
sl@0
|
916 |
// r3 is caller save
|
|
sl@0
|
917 |
__EH_FRAME_ADDRESS(sp,4)
|
|
sl@0
|
918 |
// we can push the callee save regs
|
|
sl@0
|
919 |
__EH_FRAME_PUSH2(r4-r11,lr)
|
|
sl@0
|
920 |
asm("ldmia r0, {r5,r6,r11} "); // r5=count, r6=iEntries, r11=entry size
|
|
sl@0
|
921 |
asm("mov r4, r1 "); // r4=anEntry
|
|
sl@0
|
922 |
asm("mov r7, r2 "); // r7=anOrder
|
|
sl@0
|
923 |
asm("mov r9, r3 "); // r9 = aMode
|
|
sl@0
|
924 |
asm("bl BinarySearchEntries ");
|
|
sl@0
|
925 |
asm("moveq r0, r5 "); // if match r0=index
|
|
sl@0
|
926 |
__POPRET("r3-r11,");
|
|
sl@0
|
927 |
}
|
|
sl@0
|
928 |
|
|
sl@0
|
929 |
#ifndef __KERNEL_MODE__
|
|
sl@0
|
930 |
EXPORT_C __NAKED__ void RArrayBase::HeapSortSigned()
|
|
sl@0
|
931 |
{
|
|
sl@0
|
932 |
#ifdef __EABI__
|
|
sl@0
|
933 |
// need sp aligned correctly
|
|
sl@0
|
934 |
asm("stmfd sp!, {r3-r11,lr} ");
|
|
sl@0
|
935 |
__EH_FRAME_ADDRESS(sp,4)
|
|
sl@0
|
936 |
__EH_FRAME_PUSH2(r4-r11,lr)
|
|
sl@0
|
937 |
#else
|
|
sl@0
|
938 |
asm("stmfd sp!, {r4-r11,lr} ");
|
|
sl@0
|
939 |
#endif
|
|
sl@0
|
940 |
asm("ldmia r0, {r4,r5,r10,r11} "); // r4=iCount, r5=iEntries, r10=entry size, r11=key offset
|
|
sl@0
|
941 |
asm("cmp r10, #4 ");
|
|
sl@0
|
942 |
asm("bleq HeapSortSigned ");
|
|
sl@0
|
943 |
asm("cmp r10, #4 ");
|
|
sl@0
|
944 |
asm("blne HeapSortSignedKey ");
|
|
sl@0
|
945 |
#ifdef __EABI__
|
|
sl@0
|
946 |
__POPRET("r3-r11,");
|
|
sl@0
|
947 |
#else
|
|
sl@0
|
948 |
__POPRET("r4-r11,");
|
|
sl@0
|
949 |
#endif
|
|
sl@0
|
950 |
|
|
sl@0
|
951 |
// Heap sort list of entries by signed key
|
|
sl@0
|
952 |
// List address in r5, count in r4, entry size in r10, key offset in r11
|
|
sl@0
|
953 |
// r4=ss, r6=sh
|
|
sl@0
|
954 |
// r8,r9 modified
|
|
sl@0
|
955 |
asm("HeapSortSignedKey: ");
|
|
sl@0
|
956 |
asm("cmp r4, #1 ");
|
|
sl@0
|
957 |
__JUMP(le,lr);
|
|
sl@0
|
958 |
asm("mov r7, lr "); // save lr in r7
|
|
sl@0
|
959 |
asm("sub sp, sp, r10 "); // get some temporary space on the stack
|
|
sl@0
|
960 |
asm("mov r6, r4, lsr #1 ");
|
|
sl@0
|
961 |
asm("hssk_loop_start1: ");
|
|
sl@0
|
962 |
asm("sub r6, r6, #1 ");
|
|
sl@0
|
963 |
asm("mla r1, r6, r10, r5 "); // [sp]=entry[r6]
|
|
sl@0
|
964 |
asm("mov r0, sp ");
|
|
sl@0
|
965 |
asm("mov r2, r10 ");
|
|
sl@0
|
966 |
asm("bl wordmove ");
|
|
sl@0
|
967 |
asm("mov r8, r6 ");
|
|
sl@0
|
968 |
asm("mov r9, r6 ");
|
|
sl@0
|
969 |
asm("b hssk_loop_start2 ");
|
|
sl@0
|
970 |
asm("hssk_loop_inner: ");
|
|
sl@0
|
971 |
asm("mla r0, r9, r10, r5 "); // r0=&entry[r9]
|
|
sl@0
|
972 |
asm("mla r1, r8, r10, r5 "); // r1=&entry[r8]
|
|
sl@0
|
973 |
asm("mov r2, r10 ");
|
|
sl@0
|
974 |
asm("bl wordmove "); // entry[r9]=entry[r8]
|
|
sl@0
|
975 |
asm("mov r9, r8 ");
|
|
sl@0
|
976 |
asm("hssk_loop_start2: ");
|
|
sl@0
|
977 |
asm("add r8, r8, #1 ");
|
|
sl@0
|
978 |
asm("add r8, r8, r8 ");
|
|
sl@0
|
979 |
asm("cmp r8, r4 ");
|
|
sl@0
|
980 |
asm("bgt hssk_loop_inner_end ");
|
|
sl@0
|
981 |
asm("mla r0, r8, r10, r5 ");
|
|
sl@0
|
982 |
asm("ldrne r2, [r0, r11]! "); // r2=key[r8]
|
|
sl@0
|
983 |
asm("addeq r0, r0, r11 ");
|
|
sl@0
|
984 |
asm("ldr r1, [r0, -r10] "); // r1=key[r8-1]
|
|
sl@0
|
985 |
asm("subeq r8, r8, #1 ");
|
|
sl@0
|
986 |
asm("beq hssk_loop_inner2 ");
|
|
sl@0
|
987 |
asm("cmp r1, r2 ");
|
|
sl@0
|
988 |
asm("subgt r8, r8, #1 ");
|
|
sl@0
|
989 |
asm("movle r1, r2 ");
|
|
sl@0
|
990 |
asm("hssk_loop_inner2: ");
|
|
sl@0
|
991 |
asm("ldr r2, [sp, r11] "); // r2=key[sp]
|
|
sl@0
|
992 |
asm("cmp r1, r2 ");
|
|
sl@0
|
993 |
asm("bgt hssk_loop_inner ");
|
|
sl@0
|
994 |
asm("hssk_loop_inner_end: ");
|
|
sl@0
|
995 |
asm("mla r0, r9, r10, r5 "); // r0=&entry[r9]
|
|
sl@0
|
996 |
asm("mov r1, sp ");
|
|
sl@0
|
997 |
asm("mov r2, r10 ");
|
|
sl@0
|
998 |
asm("bl wordmove "); // entry[r9]=[sp]
|
|
sl@0
|
999 |
asm("cmp r6, #0 ");
|
|
sl@0
|
1000 |
asm("bne hssk_loop_start1 ");
|
|
sl@0
|
1001 |
asm("sub r4, r4, #1 ");
|
|
sl@0
|
1002 |
asm("mla r1, r4, r10, r5 "); // r1=&entry[r4]
|
|
sl@0
|
1003 |
asm("mov r0, sp ");
|
|
sl@0
|
1004 |
asm("mov r2, r10 ");
|
|
sl@0
|
1005 |
asm("bl wordmove "); // [sp]=entry[r4]
|
|
sl@0
|
1006 |
asm("mla r0, r4, r10, r5 "); // r0=&entry[r4]
|
|
sl@0
|
1007 |
asm("mov r1, r5 "); // r1=&entry[0]
|
|
sl@0
|
1008 |
asm("mov r2, r10 ");
|
|
sl@0
|
1009 |
asm("bl wordmove "); // entry[0]=entry[r4]
|
|
sl@0
|
1010 |
asm("cmp r4, #1 ");
|
|
sl@0
|
1011 |
asm("mov r8, r6 ");
|
|
sl@0
|
1012 |
asm("mov r9, r6 ");
|
|
sl@0
|
1013 |
asm("bgt hssk_loop_start2 ");
|
|
sl@0
|
1014 |
asm("mov r0, r5 "); // r0=&entry[0]
|
|
sl@0
|
1015 |
asm("mov r1, sp ");
|
|
sl@0
|
1016 |
asm("mov r2, r10 ");
|
|
sl@0
|
1017 |
asm("bl wordmove "); // entry[0]=[sp]
|
|
sl@0
|
1018 |
asm("add sp, sp, r10 "); // free temporary stack space
|
|
sl@0
|
1019 |
__JUMP(,r7);
|
|
sl@0
|
1020 |
}
|
|
sl@0
|
1021 |
|
|
sl@0
|
1022 |
EXPORT_C __NAKED__ void RArrayBase::HeapSortUnsigned()
|
|
sl@0
|
1023 |
{
|
|
sl@0
|
1024 |
#ifdef __EABI__
|
|
sl@0
|
1025 |
// need sp aligned correctly
|
|
sl@0
|
1026 |
asm("stmfd sp!, {r3-r11,lr} ");
|
|
sl@0
|
1027 |
__EH_FRAME_ADDRESS(sp,4)
|
|
sl@0
|
1028 |
__EH_FRAME_PUSH2(r4-r11,lr)
|
|
sl@0
|
1029 |
#else
|
|
sl@0
|
1030 |
asm("stmfd sp!, {r4-r11,lr} ");
|
|
sl@0
|
1031 |
#endif
|
|
sl@0
|
1032 |
asm("ldmia r0, {r4,r5,r10,r11} "); // r4=iCount, r5=iEntries, r10=entry size, r11=key offset
|
|
sl@0
|
1033 |
asm("cmp r10, #4 ");
|
|
sl@0
|
1034 |
asm("bleq HeapSortUnsigned ");
|
|
sl@0
|
1035 |
asm("cmp r10, #4 ");
|
|
sl@0
|
1036 |
asm("blne HeapSortUnsignedKey ");
|
|
sl@0
|
1037 |
#ifdef __EABI__
|
|
sl@0
|
1038 |
__POPRET("r3-r11,");
|
|
sl@0
|
1039 |
#else
|
|
sl@0
|
1040 |
__POPRET("r4-r11,");
|
|
sl@0
|
1041 |
#endif
|
|
sl@0
|
1042 |
|
|
sl@0
|
1043 |
// Heap sort list of entries by unsigned key
|
|
sl@0
|
1044 |
// List address in r5, count in r4, entry size in r10, key offset in r11
|
|
sl@0
|
1045 |
// r4=ss, r6=sh
|
|
sl@0
|
1046 |
// r8,r9 modified
|
|
sl@0
|
1047 |
asm("HeapSortUnsignedKey: ");
|
|
sl@0
|
1048 |
asm("cmp r4, #1 ");
|
|
sl@0
|
1049 |
__JUMP(le,lr);
|
|
sl@0
|
1050 |
asm("mov r7, lr "); // save lr in r7
|
|
sl@0
|
1051 |
asm("sub sp, sp, r10 "); // get some temporary space on the stack
|
|
sl@0
|
1052 |
asm("mov r6, r4, lsr #1 ");
|
|
sl@0
|
1053 |
asm("hsuk_loop_start1: ");
|
|
sl@0
|
1054 |
asm("sub r6, r6, #1 ");
|
|
sl@0
|
1055 |
asm("mla r1, r6, r10, r5 "); // [sp]=entry[r6]
|
|
sl@0
|
1056 |
asm("mov r0, sp ");
|
|
sl@0
|
1057 |
asm("mov r2, r10 ");
|
|
sl@0
|
1058 |
asm("bl wordmove ");
|
|
sl@0
|
1059 |
asm("mov r8, r6 ");
|
|
sl@0
|
1060 |
asm("mov r9, r6 ");
|
|
sl@0
|
1061 |
asm("b hsuk_loop_start2 ");
|
|
sl@0
|
1062 |
asm("hsuk_loop_inner: ");
|
|
sl@0
|
1063 |
asm("mla r0, r9, r10, r5 "); // r0=&entry[r9]
|
|
sl@0
|
1064 |
asm("mla r1, r8, r10, r5 "); // r1=&entry[r8]
|
|
sl@0
|
1065 |
asm("mov r2, r10 ");
|
|
sl@0
|
1066 |
asm("bl wordmove "); // entry[r9]=entry[r8]
|
|
sl@0
|
1067 |
asm("mov r9, r8 ");
|
|
sl@0
|
1068 |
asm("hsuk_loop_start2: ");
|
|
sl@0
|
1069 |
asm("add r8, r8, #1 ");
|
|
sl@0
|
1070 |
asm("add r8, r8, r8 ");
|
|
sl@0
|
1071 |
asm("cmp r8, r4 ");
|
|
sl@0
|
1072 |
asm("bgt hsuk_loop_inner_end ");
|
|
sl@0
|
1073 |
asm("mla r0, r8, r10, r5 ");
|
|
sl@0
|
1074 |
asm("ldrne r2, [r0, r11]! "); // r2=key[r8]
|
|
sl@0
|
1075 |
asm("addeq r0, r0, r11 ");
|
|
sl@0
|
1076 |
asm("ldr r1, [r0, -r10] "); // r1=key[r8-1]
|
|
sl@0
|
1077 |
asm("subeq r8, r8, #1 ");
|
|
sl@0
|
1078 |
asm("beq hsuk_loop_inner2 ");
|
|
sl@0
|
1079 |
asm("cmp r1, r2 ");
|
|
sl@0
|
1080 |
asm("subhi r8, r8, #1 ");
|
|
sl@0
|
1081 |
asm("movls r1, r2 ");
|
|
sl@0
|
1082 |
asm("hsuk_loop_inner2: ");
|
|
sl@0
|
1083 |
asm("ldr r2, [sp, r11] "); // r2=key[sp]
|
|
sl@0
|
1084 |
asm("cmp r1, r2 ");
|
|
sl@0
|
1085 |
asm("bhi hsuk_loop_inner ");
|
|
sl@0
|
1086 |
asm("hsuk_loop_inner_end: ");
|
|
sl@0
|
1087 |
asm("mla r0, r9, r10, r5 "); // r0=&entry[r9]
|
|
sl@0
|
1088 |
asm("mov r1, sp ");
|
|
sl@0
|
1089 |
asm("mov r2, r10 ");
|
|
sl@0
|
1090 |
asm("bl wordmove "); // entry[r9]=[sp]
|
|
sl@0
|
1091 |
asm("cmp r6, #0 ");
|
|
sl@0
|
1092 |
asm("bne hsuk_loop_start1 ");
|
|
sl@0
|
1093 |
asm("sub r4, r4, #1 ");
|
|
sl@0
|
1094 |
asm("mla r1, r4, r10, r5 "); // r1=&entry[r4]
|
|
sl@0
|
1095 |
asm("mov r0, sp ");
|
|
sl@0
|
1096 |
asm("mov r2, r10 ");
|
|
sl@0
|
1097 |
asm("bl wordmove "); // [sp]=entry[r4]
|
|
sl@0
|
1098 |
asm("mla r0, r4, r10, r5 "); // r0=&entry[r4]
|
|
sl@0
|
1099 |
asm("mov r1, r5 "); // r1=&entry[0]
|
|
sl@0
|
1100 |
asm("mov r2, r10 ");
|
|
sl@0
|
1101 |
asm("bl wordmove "); // entry[0]=entry[r4]
|
|
sl@0
|
1102 |
asm("cmp r4, #1 ");
|
|
sl@0
|
1103 |
asm("mov r8, r6 ");
|
|
sl@0
|
1104 |
asm("mov r9, r6 ");
|
|
sl@0
|
1105 |
asm("bgt hsuk_loop_start2 ");
|
|
sl@0
|
1106 |
asm("mov r0, r5 "); // r0=&entry[0]
|
|
sl@0
|
1107 |
asm("mov r1, sp ");
|
|
sl@0
|
1108 |
asm("mov r2, r10 ");
|
|
sl@0
|
1109 |
asm("bl wordmove "); // entry[0]=[sp]
|
|
sl@0
|
1110 |
asm("add sp, sp, r10 "); // free temporary stack space
|
|
sl@0
|
1111 |
__JUMP(,r7);
|
|
sl@0
|
1112 |
}
|
|
sl@0
|
1113 |
|
|
sl@0
|
1114 |
EXPORT_C __NAKED__ void RArrayBase::HeapSort(TGeneralLinearOrder anOrder)
|
|
sl@0
|
1115 |
{
|
|
sl@0
|
1116 |
#ifdef __EABI__
|
|
sl@0
|
1117 |
// need sp aligned correctly
|
|
sl@0
|
1118 |
asm("stmfd sp!, {r3-r11,lr} ");
|
|
sl@0
|
1119 |
__EH_FRAME_ADDRESS(sp,4)
|
|
sl@0
|
1120 |
__EH_FRAME_PUSH2(r4-r11,lr)
|
|
sl@0
|
1121 |
#else
|
|
sl@0
|
1122 |
asm("stmfd sp!, {r4-r11,lr} ");
|
|
sl@0
|
1123 |
#endif
|
|
sl@0
|
1124 |
asm("ldmia r0, {r4,r5,r10,r11} ");
|
|
sl@0
|
1125 |
asm("mov r7, r1 ");
|
|
sl@0
|
1126 |
asm("bl HeapSortEntries ");
|
|
sl@0
|
1127 |
#ifdef __EABI__
|
|
sl@0
|
1128 |
__POPRET("r3-r11,");
|
|
sl@0
|
1129 |
#else
|
|
sl@0
|
1130 |
__POPRET("r4-r11,");
|
|
sl@0
|
1131 |
#endif
|
|
sl@0
|
1132 |
|
|
sl@0
|
1133 |
// Heap sort list of entries
|
|
sl@0
|
1134 |
// List address in r5, count in r4, entry size in r10, key offset in r11
|
|
sl@0
|
1135 |
// Address of ordering function in r7
|
|
sl@0
|
1136 |
// r4=ss, r6=sh
|
|
sl@0
|
1137 |
// r8,r9 modified
|
|
sl@0
|
1138 |
asm("HeapSortEntries: ");
|
|
sl@0
|
1139 |
asm("cmp r4, #1 ");
|
|
sl@0
|
1140 |
__JUMP(le,lr);
|
|
sl@0
|
1141 |
asm("str lr, [sp, #-4]! ");
|
|
sl@0
|
1142 |
asm("mov r8, sp "); // original SP
|
|
sl@0
|
1143 |
asm("sub sp, sp, r10 "); // get some temporary space on the stack
|
|
sl@0
|
1144 |
asm("sub sp, sp, #4 "); // make room for original SP
|
|
sl@0
|
1145 |
asm("bic sp, sp, #4 "); // align stack to 8 byte boundary
|
|
sl@0
|
1146 |
asm("str r8, [sp, r10] "); // save original SP
|
|
sl@0
|
1147 |
asm("mov r6, r4, lsr #1 ");
|
|
sl@0
|
1148 |
asm("hse_loop_start1: ");
|
|
sl@0
|
1149 |
asm("sub r6, r6, #1 ");
|
|
sl@0
|
1150 |
asm("mla r1, r6, r10, r5 "); // [sp]=entry[r6]
|
|
sl@0
|
1151 |
asm("mov r0, sp ");
|
|
sl@0
|
1152 |
asm("mov r2, r10 ");
|
|
sl@0
|
1153 |
asm("bl wordmove ");
|
|
sl@0
|
1154 |
asm("mov r8, r6 ");
|
|
sl@0
|
1155 |
asm("mov r9, r6 ");
|
|
sl@0
|
1156 |
asm("b hse_loop_start2 ");
|
|
sl@0
|
1157 |
asm("hse_loop_inner: ");
|
|
sl@0
|
1158 |
asm("mla r0, r9, r10, r5 "); // r0=&entry[r9]
|
|
sl@0
|
1159 |
asm("mla r1, r8, r10, r5 "); // r1=&entry[r8]
|
|
sl@0
|
1160 |
asm("mov r2, r10 ");
|
|
sl@0
|
1161 |
asm("bl wordmove "); // entry[r9]=entry[r8]
|
|
sl@0
|
1162 |
asm("mov r9, r8 ");
|
|
sl@0
|
1163 |
asm("hse_loop_start2: ");
|
|
sl@0
|
1164 |
asm("add r8, r8, #1 ");
|
|
sl@0
|
1165 |
asm("add r8, r8, r8 ");
|
|
sl@0
|
1166 |
asm("cmp r8, r4 ");
|
|
sl@0
|
1167 |
asm("bgt hse_loop_inner_end ");
|
|
sl@0
|
1168 |
asm("subeq r8, r8, #1 ");
|
|
sl@0
|
1169 |
asm("beq hse_loop_inner2 ");
|
|
sl@0
|
1170 |
asm("mla r1, r8, r10, r5 "); // r1=&entry[r8]
|
|
sl@0
|
1171 |
asm("sub r0, r1, r10 "); // r0=&entry[r8-1]
|
|
sl@0
|
1172 |
__JUMPL(7);
|
|
sl@0
|
1173 |
asm("cmp r0, #0 "); // compare entry[r8-1] with entry[r8]
|
|
sl@0
|
1174 |
asm("subgt r8, r8, #1 ");
|
|
sl@0
|
1175 |
asm("hse_loop_inner2: ");
|
|
sl@0
|
1176 |
asm("mla r0, r8, r10, r5 "); // r0=&entry[r8]
|
|
sl@0
|
1177 |
asm("mov r1, sp ");
|
|
sl@0
|
1178 |
__JUMPL(7);
|
|
sl@0
|
1179 |
asm("cmp r0, #0 "); // compare entry[r8] with [sp]
|
|
sl@0
|
1180 |
asm("bgt hse_loop_inner ");
|
|
sl@0
|
1181 |
asm("hse_loop_inner_end: ");
|
|
sl@0
|
1182 |
asm("mla r0, r9, r10, r5 "); // r0=&entry[r9]
|
|
sl@0
|
1183 |
asm("mov r1, sp ");
|
|
sl@0
|
1184 |
asm("mov r2, r10 ");
|
|
sl@0
|
1185 |
asm("bl wordmove "); // entry[r9]=[sp]
|
|
sl@0
|
1186 |
asm("cmp r6, #0 ");
|
|
sl@0
|
1187 |
asm("bne hse_loop_start1 ");
|
|
sl@0
|
1188 |
asm("sub r4, r4, #1 ");
|
|
sl@0
|
1189 |
asm("mla r1, r4, r10, r5 "); // r1=&entry[r4]
|
|
sl@0
|
1190 |
asm("mov r0, sp ");
|
|
sl@0
|
1191 |
asm("mov r2, r10 ");
|
|
sl@0
|
1192 |
asm("bl wordmove "); // [sp]=entry[r4]
|
|
sl@0
|
1193 |
asm("mla r0, r4, r10, r5 "); // r0=&entry[r4]
|
|
sl@0
|
1194 |
asm("mov r1, r5 "); // r1=&entry[0]
|
|
sl@0
|
1195 |
asm("mov r2, r10 ");
|
|
sl@0
|
1196 |
asm("bl wordmove "); // entry[0]=entry[r4]
|
|
sl@0
|
1197 |
asm("cmp r4, #1 ");
|
|
sl@0
|
1198 |
asm("mov r8, r6 ");
|
|
sl@0
|
1199 |
asm("mov r9, r6 ");
|
|
sl@0
|
1200 |
asm("bgt hse_loop_start2 ");
|
|
sl@0
|
1201 |
asm("mov r0, r5 "); // r0=&entry[0]
|
|
sl@0
|
1202 |
asm("mov r1, sp ");
|
|
sl@0
|
1203 |
asm("mov r2, r10 ");
|
|
sl@0
|
1204 |
asm("bl wordmove "); // entry[0]=[sp]
|
|
sl@0
|
1205 |
asm("ldr sp, [sp, r10] "); // restore stack pointer, freeing temporary stack space
|
|
sl@0
|
1206 |
__POPRET("");
|
|
sl@0
|
1207 |
}
|
|
sl@0
|
1208 |
#endif // __KERNEL_MODE__
|
|
sl@0
|
1209 |
#endif // __ARRAY_MACHINE_CODED__
|