diff -r 000000000000 -r a41df078684a kernel/eka/common/arm/carray.cia --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/kernel/eka/common/arm/carray.cia Mon Oct 19 15:55:17 2009 +0100 @@ -0,0 +1,1209 @@ +// Copyright (c) 1998-2009 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\carray.cia +// Machine coded arrays for ARM +// +// + +#include +#include "../common.h" + +#ifdef __ARRAY_MACHINE_CODED__ +extern "C" void PanicBadArrayFindMode(); + +EXPORT_C __NAKED__ TAny*& RPointerArrayBase::At(TInt /*anIndex*/) const + { + asm("ldmia r0, {r2,r3} "); // r2=iCount, r3=iEntries + asm("cmp r1, #0 "); // check anIndex>=0 + asm("cmpge r2, r1 "); // if so, check iCount>anIndex + asm("addgt r0, r3, r1, lsl #2 "); // address of entry = iEntries+4*anIndex +#ifdef __CPU_ARMV6 + asm("ble 1f "); // avoid conditional return on ARMv6 + __JUMP(,lr); +#else + __JUMP(gt,lr); +#endif + asm("1: "); + asm("b " CSM_Z18PanicBadArrayIndexv); + } + +EXPORT_C __NAKED__ TInt RPointerArrayBase::Append(const TAny* /*anEntry*/) + { + asm("ldmia r0, {r2,r3,r12} "); // r2=iCount, r3=iEntries, r12=iAllocated + asm("cmp r2, r12 "); + asm("beq ptr_append_1 "); + asm("ptr_append_0: "); + asm("str r1, [r3, r2, lsl #2] "); + asm("add r2, r2, #1 "); + asm("str r2, [r0] "); + asm("mov r0, #0 "); + __JUMP(,lr); + asm("ptr_append_1: "); + asm("stmfd sp!, {r0,r1,r2,lr} "); + asm("bl " CSM_ZN17RPointerArrayBase4GrowEv); + asm("cmp r0, #0 "); + asm("bne ptr_append_2 "); + asm("ldmfd sp!, {r0,r1,r2,lr} "); + asm("ldmia r0, {r2, r3} "); + asm("b ptr_append_0 "); + asm("ptr_append_2: "); // error enlarging array + asm("add sp, sp, #12 "); + __POPRET(""); + } + +EXPORT_C __NAKED__ TInt RPointerArrayBase::Find(const TAny* /*anEntry*/) const + { + asm("ldmia r0, {r2,r3} "); // r2=iCount, r3=iEntries + asm("mov r0, #0 "); // r0=0 (will be index+1) + asm("subs r2, r2, #1 "); // r2=iCount-1 + asm("blt 0f "); + asm("1: "); + asm("ldr r12, [r3], #4 "); // r12=iEntries[r0] + asm("add r0, r0, #1 "); // r0 = index+1 + asm("cmp r2, r0 "); // C=1 iff iCount-1>=index+1 iff index<=iCount-2 iff this isn't last entry + asm("teq r12, r1 "); // check for equality, doesn't affect C + asm("bhi 1b "); // loop if C=1 & Z=0, i.e. if no match and this isn't last entry + asm("0: "); + asm("movne r0, #0 "); // if no match set r0=0 + asm("sub r0, r0, #1 "); // r0 was index+1, return index + __JUMP(,lr); + } + +EXPORT_C __NAKED__ TInt RPointerArrayBase::Find(const TAny* /*anEntry*/, TGeneralIdentityRelation /*anIdentity*/) const + { + asm("stmfd sp!, {r4-r8,lr} "); + __EH_FRAME_PUSH2(r4-r8,lr) + asm("ldmia r0, {r4,r5} "); // r4=iCount, r5=iEntries + asm("mvn r6, #0 "); + asm("mov r7, r1 "); + asm("mov r8, r2 "); + asm("subs r4, r4, #1 "); // r4=iCount-1 + asm("bmi ptr_find2_return "); // if count=0, return -1 + asm("ptr_find2_loop: "); + asm("ldr r1, [r5], #4 "); // r1=pointer to entry r6 + asm("add r6, r6, #1 "); + asm("mov r0, r7 "); // r0=anEntry + __JUMPL(8); + asm("cmp r0, #0 "); + asm("bne ptr_find2_return "); // if equal, return r6 + asm("cmp r6, r4 "); + asm("blt ptr_find2_loop "); + asm("mvn r6, #0 "); + asm("ptr_find2_return: "); // return r6 + asm("mov r0, r6 "); + __POPRET("r4-r8,"); + } + +EXPORT_C __NAKED__ TInt RPointerArrayBase::BinarySearchSigned(TInt /*anEntry*/, TInt& /*anIndex*/) const + { + asm("mov r3, #0 "); + // fall through + } + +EXPORT_C __NAKED__ TInt RPointerArrayBase::BinarySearchSigned(TInt /*anEntry*/, TInt& /*anIndex*/, TInt /*aMode*/) const + { + asm("stmfd sp!, {r4-r6,lr} "); + __EH_FRAME_PUSH2(r4-r6,lr) + asm("mov r6, r2 "); // r6=&anIndex + asm("ldmia r0, {r2,r4} "); // r2=count, r4=iEntries + asm("bl BinarySearchSigned "); + asm("str r2, [r6] "); // store index + __POPRET("r4-r6,"); + +// Binary search list of signed integers +// Match value in r1 +// List address in r4 +// Count in r2 +// Match mode in r3 +// Return with: r0=0 if match found, r0=-1 otherwise +// Z flag set if match found, clear if not +// r2=index of match or next higher +// r5 modified + asm("BinarySearchSigned: "); +#ifdef _DEBUG + asm("cmp r3, #%a0" : : "i" ((TInt)EArrayFindMode_Limit) ); + asm("bhs PanicBadArrayFindMode "); +#endif + asm("mov r3, r3, lsl #30 "); // match mode -> bits 30,31 (00000000=any, 40000000=first, 80000000=last) + asm("orr r3, r3, #1 "); // set NOT FOUND flag + asm("cmp r2, #0 "); // r2 will be right index + asm("beq 0f "); + asm("mov r5, #0 "); // r5 = left index + asm("1: "); + asm("add r12, r2, r5 "); + asm("mov r12, r12, lsr #1 "); // r12 = mid index + asm("ldr r0, [r4, r12, lsl #2] "); // r0 = entry[mid] + asm("subs r0, r0, r1 "); // r0 = entry[mid] - match + asm("beq 2f "); // if match branch out + asm("3: "); + asm("addlt r5, r12, #1 "); // else if entrymatch right=mid + asm("subs r0, r2, r5 "); // right > left ? + asm("bgt 1b "); // r0 = 0 when loop terminates + asm("0: "); + asm("tst r3, #1 "); // test not found flag + asm("mvnnes r0, #0 "); // if set r0=-1 = KErrNotFound + __JUMP(,lr); + asm("2: "); + asm("bics r3, r3, #1 "); // clear NOT FOUND flag, test for find mode ANY (Z set if so) + asm("bne 3b "); // if not, V=0 (left from subs), N=1 for last, 0 for first, Z=0 => LAST->LT FIRST->GT + asm("mov r2, r12 "); // if so, r2 = mid + __JUMP(,lr); // and return with r0 = 0 + } + +EXPORT_C __NAKED__ TInt RPointerArrayBase::BinarySearchUnsigned(TUint /*anEntry*/, TInt& /*anIndex*/) const + { + asm("mov r3, #0 "); + // fall through + } + +EXPORT_C __NAKED__ TInt RPointerArrayBase::BinarySearchUnsigned(TUint /*anEntry*/, TInt& /*anIndex*/, TInt /*aMode*/) const + { + asm("stmfd sp!, {r4-r6,lr} "); + __EH_FRAME_PUSH2(r4-r6,lr) + asm("mov r6, r2 "); // r6=&anIndex + asm("ldmia r0, {r2,r4} "); // r2=count, r4=iEntries + asm("bl BinarySearchUnsigned "); + asm("str r2, [r6] "); // store index + __POPRET("r4-r6,"); + +// Binary search list of unsigned integers +// Match value in r1 +// List address in r4 +// Count in r2 +// Match mode in r3 +// Return with: r0=0 if match found, r0=-1 otherwise +// Z flag set if match found, clear if not +// r2=index of match or next higher +// r5 modified + asm("BinarySearchUnsigned: "); +#ifdef _DEBUG + asm("cmp r3, #%a0" : : "i" ((TInt)EArrayFindMode_Limit) ); + asm("bhs PanicBadArrayFindMode "); +#endif + asm("mov r3, r3, lsl #30 "); // match mode -> bits 30,31 (00000000=any, 40000000=first, 80000000=last) + asm("orr r3, r3, #1 "); // set NOT FOUND flag + asm("cmp r2, #0 "); // r2 will be right index + asm("beq 0f "); + asm("mov r5, #0 "); // r5 = left index + asm("1: "); + asm("add r12, r2, r5 "); + asm("mov r12, r12, lsr #1 "); // r12 = mid index + asm("ldr r0, [r4, r12, lsl #2] "); // r0 = entry[mid] + asm("subs r0, r1, r0 "); // r0 = match - entry[mid] + asm("beq 2f "); // if match branch out + asm("3: "); + asm("addhi r5, r12, #1 "); // else if entrymatch right=mid LO = ~C + asm("subs r0, r2, r5 "); // right > left ? + asm("bgt 1b "); // r0 = 0 when loop terminates + asm("0: "); + asm("tst r3, #1 "); // test not found flag + asm("mvnnes r0, #0 "); // if set r0=-1 = KErrNotFound + __JUMP(,lr); + asm("2: "); // N=0 Z=1 C=1 V=0 r0=0 here + asm("bics r3, r3, #1 "); // clear NOT FOUND flag, test for find mode ANY (Z set if so) + asm("cmpne r3, #0x60000000 "); // HI if LAST, LO if FIRST + asm("bne 3b "); // if not ANY, branch back + asm("mov r2, r12 "); // if ANY, r2 = mid + __JUMP(,lr); // and return with r0 = 0 + } + +EXPORT_C __NAKED__ TInt RPointerArrayBase::BinarySearch(const TAny* /*anEntry*/, TInt& /*anIndex*/, TGeneralLinearOrder /*anOrder*/, TInt /*aMode*/) const + { + asm("stmfd sp!, {r2,r4-r11,lr} "); // store &anIndex, r4-r11, lr + __EH_FRAME_ADDRESS(sp,4) + __EH_FRAME_PUSH2(r4-r11,lr) + asm("ldmia r0, {r5,r6} "); // r5=count, r6=iEntries + asm("ldr r11, [sp, #40] "); // r11 = aMode + asm("mov r7, r3 "); // r7=anOrder + asm("mov r4, r1 "); // r1=anEntry + asm("bl BinarySearchPointers "); // r0=KErrNone if match, KErrNotFound if not + asm("ldmfd sp!, {r2,r4} "); // r2=&anIndex, restore r4 + // Dont need to FRAME RESTORE here since there's no barrier here + asm("str r5, [r2] "); // store index + __POPRET("r5-r11,"); // restore r5-r11 and return + +// Binary search list of pointers +// Pointer to match value in r4 +// List address in r6 +// Count in r5 +// Pointer to ordering function in r7 +// r11 = find mode +// Return with: r0=0 if match found, r0=-1 otherwise +// Z flag set if match found, clear otherwise +// r5=index of match or next higher +// r9,r10,r11 modified + asm("BinarySearchPointers: "); +#ifdef _DEBUG + asm("cmp r11, #%a0" : : "i" ((TInt)EArrayFindMode_Limit) ); + asm("bhs PanicBadArrayFindMode "); +#endif + asm("movs r11, r11, lsl #30 "); // match mode -> bits 30,31 (00000000=any, 40000000=first, 80000000=last) + asm("eorne r11, r11, #0xC0000000 "); // match mode -> bits 30,31 (00000000=any, 80000000=first, 40000000=last) + asm("orr r11, r11, #1 "); // set NOT FOUND flag + asm("mov r9, lr "); + asm("cmp r5, #0 "); // r5 will be right index + asm("beq 0f "); + asm("mov r10, #0 "); // r10 = left index + asm("1: "); + asm("add r8, r5, r10 "); + asm("mov r8, r8, lsr #1 "); // r8 = mid index + +/** the latency of the indirect call should mask the latency of the ldr + arm1136 requires base register to be valid one cycle early +*/ + asm("mov r0, r4 "); // r0 points to match value + asm("ldr r1, [r6, r8, lsl #2] "); // r1 points to entry[mid] + __JUMPL(7); // call ordering function (match, entry) + asm("cmp r0, #0 "); + asm("biceq r11, r11, #1 "); // if match clear NOT FOUND flag + asm("addeqs r0, r0, r11 "); // and add match mode to r0 (>0 if LAST, <0 if FIRST, 0 if ANY) + asm("beq 2f "); // branch out if match and ANY + asm("addgt r10, r8, #1 "); // else if match > entry, left = mid + 1 + asm("movlt r5, r8 "); // else if match < entry, right = mid + asm("subs r0, r5, r10 "); // loop if right > left + asm("bgt 1b "); // finish loop with r0 = 0 + asm("0: "); + asm("tst r11, #1 "); // test not found flag + asm("mvnnes r0, #0 "); // if set r0=-1 = KErrNotFound + __JUMP(,r9); + asm("2: "); + asm("mov r5, r8 "); // if ANY, r8 = mid + __JUMP(,r9); // and return with r0 = 0, Z=1 + } + +EXPORT_C __NAKED__ TInt RPointerArrayBase::FindIsqSigned(TInt /*anEntry*/) const + { + asm("mov r2, #0 "); + // fall through + } + +EXPORT_C __NAKED__ TInt RPointerArrayBase::FindIsqSigned(TInt /*anEntry*/, TInt /*aMode*/) const + { +#ifdef __EABI__ + // sp needs correct alignment + asm("stmfd sp!, {r4-r6,lr} "); + __EH_FRAME_PUSH2(r4-r6,lr) +#else + asm("stmfd sp!, {r4,r5,lr} "); +#endif + asm("mov r3, r2 "); // r3 = match mode + asm("ldmia r0, {r2,r4} "); // r2=count, r4=iEntries + asm("bl BinarySearchSigned "); + asm("moveq r0, r2 "); // if match r0=match index; if no match, r0=KErrNotFound +#ifdef __EABI__ + __POPRET("r4-r6,"); +#else + __POPRET("r4,r5,"); +#endif + } + +EXPORT_C __NAKED__ TInt RPointerArrayBase::FindIsqUnsigned(TUint /*anEntry*/) const + { + asm("mov r2, #0 "); + // fall through + } + +EXPORT_C __NAKED__ TInt RPointerArrayBase::FindIsqUnsigned(TUint /*anEntry*/, TInt /*aMode*/) const + { +#ifdef __EABI__ + // sp needs correct alignment + asm("stmfd sp!, {r4-r6,lr} "); + __EH_FRAME_PUSH2(r4-r6,lr) +#else + asm("stmfd sp!, {r4,r5,lr} "); +#endif + asm("mov r3, r2 "); // r3 = match mode + asm("ldmia r0, {r2,r4} "); // r2=count, r4=iEntries + asm("bl BinarySearchUnsigned "); + asm("moveq r0, r2 "); // if match r0=match index; if no match, r0=KErrNotFound +#ifdef __EABI__ + __POPRET("r4-r6,"); +#else + __POPRET("r4,r5,"); +#endif + } + +EXPORT_C __NAKED__ TInt RPointerArrayBase::FindIsq(const TAny* /*anEntry*/, TGeneralLinearOrder /*anOrder*/) const + { + asm("mov r3, #0 "); + // fall through + } + +EXPORT_C __NAKED__ TInt RPointerArrayBase::FindIsq(const TAny* /*anEntry*/, TGeneralLinearOrder /*anOrder*/, TInt /*aMode*/) const + { + + asm("stmfd sp!, {r3-r11,lr} "); + __EH_FRAME_PUSH2(r4-r6,lr) + asm("ldmia r0, {r5,r6} "); // r5=count, r6=iEntries + asm("mov r11, r3 "); // r11 = aMode + asm("mov r7, r2 "); // r7=anOrder + asm("mov r4, r1 "); // r1=anEntry + asm("bl BinarySearchPointers "); + asm("moveq r0, r5 "); // if match, r0=match index + __POPRET("r3-r11,"); + } + +#ifndef __KERNEL_MODE__ +EXPORT_C __NAKED__ void RPointerArrayBase::HeapSortSigned() + { +#ifdef __EABI__ + asm("stmfd sp!, {r4-r10,lr} "); + __EH_FRAME_PUSH2(r4-r10,lr) +#else + asm("stmfd sp!, {r4-r9,lr} "); +#endif + asm("ldmia r0, {r4,r5} "); // r4=iCount, r5=iEntries + asm("bl HeapSortSigned "); +#ifdef __EABI__ + __POPRET("r4-r10,"); +#else + __POPRET("r4-r9,"); +#endif + // Heap sort list of signed integers + // List address in r5, count in r4 + // r4=ss, r6=sh, r7=si + // r8,r9 modified + asm("HeapSortSigned: "); + asm("cmp r4, #1 "); + __JUMP(le,lr); + asm("mov r6, r4, lsr #1 "); + asm("hss_loop_start1: "); + asm("sub r6, r6, #1 "); + asm("ldr r7, [r5, r6, lsl #2] "); + asm("mov r8, r6 "); + asm("mov r9, r6 "); + asm("b hss_loop_start2 "); + asm("hss_loop_inner: "); + asm("ldr r0, [r5, r8, lsl #2] "); + asm("str r0, [r5, r9, lsl #2] "); + asm("mov r9, r8 "); + asm("hss_loop_start2: "); + asm("add r8, r8, #1 "); + asm("add r8, r8, r8 "); + asm("cmp r8, r4 "); + asm("bgt hss_loop_inner_end "); + asm("add r0, r5, r8, lsl #2 "); + asm("ldmneda r0, {r1,r2} "); + asm("ldreq r1, [r0, #-4] "); + asm("subeq r8, r8, #1 "); + asm("beq hss_loop_inner2 "); + asm("cmp r1, r2 "); + asm("subgt r8, r8, #1 "); + asm("movle r1, r2 "); + asm("hss_loop_inner2: "); + asm("cmp r1, r7 "); + asm("bgt hss_loop_inner "); + asm("hss_loop_inner_end: "); + asm("str r7, [r5, r9, lsl #2] "); + asm("cmp r6, #0 "); + asm("bne hss_loop_start1 "); + asm("sub r4, r4, #1 "); + asm("ldr r7, [r5, r4, lsl #2] "); + asm("ldr r0, [r5, #0] "); + asm("str r0, [r5, r4, lsl #2] "); + asm("cmp r4, #1 "); + asm("mov r8, r6 "); + asm("mov r9, r6 "); + asm("bgt hss_loop_start2 "); + asm("str r7, [r5, #0] "); + __JUMP(,lr); + } + +EXPORT_C __NAKED__ void RPointerArrayBase::HeapSortUnsigned() + { + asm("stmfd sp!, {r4-r9,lr} "); + asm("ldmia r0, {r4,r5} "); // r4=iCount, r5=iEntries + asm("bl HeapSortUnsigned "); + __POPRET("r4-r9,"); + } +#endif // !__KERNEL_MODE__ + +__NAKED__ void HeapSortUnsigned(TUint* aEntries,TInt aCount) + { + asm("stmfd sp!, {r4-r9,lr} "); + asm("mov r4,r1"); // r4=iCount + asm("mov r5,r0"); // r5=iEntries + asm("bl HeapSortUnsigned "); + __POPRET("r4-r9,"); + + // Heap sort list of unsigned integers + // List address in r5, count in r4 + // r4=ss, r6=sh, r7=si + // r8,r9 modified + asm("HeapSortUnsigned: "); + asm("cmp r4, #1 "); + __JUMP(le,lr); + asm("mov r6, r4, lsr #1 "); + asm("hsu_loop_start1: "); + asm("sub r6, r6, #1 "); + asm("ldr r7, [r5, r6, lsl #2] "); + asm("mov r8, r6 "); + asm("mov r9, r6 "); + asm("b hsu_loop_start2 "); + asm("hsu_loop_inner: "); + asm("ldr r0, [r5, r8, lsl #2] "); + asm("str r0, [r5, r9, lsl #2] "); + asm("mov r9, r8 "); + asm("hsu_loop_start2: "); + asm("add r8, r8, #1 "); + asm("add r8, r8, r8 "); + asm("cmp r8, r4 "); + asm("bgt hsu_loop_inner_end "); + asm("add r0, r5, r8, lsl #2 "); + asm("ldmneda r0, {r1,r2} "); + asm("ldreq r1, [r0, #-4] "); + asm("subeq r8, r8, #1 "); + asm("beq hsu_loop_inner2 "); + asm("cmp r1, r2 "); + asm("subhi r8, r8, #1 "); + asm("movls r1, r2 "); + asm("hsu_loop_inner2: "); + asm("cmp r1, r7 "); + asm("bhi hsu_loop_inner "); + asm("hsu_loop_inner_end: "); + asm("str r7, [r5, r9, lsl #2] "); + asm("cmp r6, #0 "); + asm("bne hsu_loop_start1 "); + asm("sub r4, r4, #1 "); + asm("ldr r7, [r5, r4, lsl #2] "); + asm("ldr r0, [r5, #0] "); + asm("str r0, [r5, r4, lsl #2] "); + asm("cmp r4, #1 "); + asm("mov r8, r6 "); + asm("mov r9, r6 "); + asm("bgt hsu_loop_start2 "); + asm("str r7, [r5, #0] "); + __JUMP(,lr); + } + +#ifndef __KERNEL_MODE__ +EXPORT_C __NAKED__ void RPointerArrayBase::HeapSort(TGeneralLinearOrder /*anOrder*/) + { + asm("stmfd sp!, {r3-r11,lr} "); + // r3 is caller save + __EH_FRAME_ADDRESS(sp,4) + // we can push the callee save regs + __EH_FRAME_PUSH2(r4-r11,lr) + asm("ldmia r0, {r4,r5} "); // r4=iCount, r5=iEntries + asm("mov r10, r1 "); // r10=anOrder + asm("bl HeapSortPointers "); + __POPRET("r3-r11,"); + + // Heap sort list of pointers + // List address in r5, count in r4, r10 points to ordering function + // r4=ss, r6=sh, r7=si + // r8,r9,r11 modified + asm("HeapSortPointers: "); + asm("cmp r4, #1 "); + __JUMP(le,lr); + asm("mov r11, lr "); + asm("mov r6, r4, lsr #1 "); + asm("hsp_loop_start1: "); + asm("sub r6, r6, #1 "); + asm("ldr r7, [r5, r6, lsl #2] "); + asm("mov r8, r6 "); + asm("mov r9, r6 "); + asm("b hsp_loop_start2 "); + asm("hsp_loop_inner: "); + asm("ldr r0, [r5, r8, lsl #2] "); + asm("str r0, [r5, r9, lsl #2] "); + asm("mov r9, r8 "); + asm("hsp_loop_start2: "); + asm("add r8, r8, #1 "); + asm("add r8, r8, r8 "); + asm("cmp r8, r4 "); + asm("bgt hsp_loop_inner_end "); + asm("subeq r8, r8, #1 "); + asm("beq hsp_loop_inner2 "); + asm("add r0, r5, r8, lsl #2 "); + asm("ldmda r0, {r0,r1} "); + __JUMPL(10); + asm("cmp r0, #0 "); + asm("subgt r8, r8, #1 "); + asm("hsp_loop_inner2: "); + asm("ldr r0, [r5, r8, lsl #2] "); + asm("mov r1, r7 "); + __JUMPL(10); + asm("cmp r0, #0 "); + asm("bgt hsp_loop_inner "); + asm("hsp_loop_inner_end: "); + asm("str r7, [r5, r9, lsl #2] "); + asm("cmp r6, #0 "); + asm("bne hsp_loop_start1 "); + asm("sub r4, r4, #1 "); + asm("ldr r7, [r5, r4, lsl #2] "); + asm("ldr r0, [r5, #0] "); + asm("str r0, [r5, r4, lsl #2] "); + asm("cmp r4, #1 "); + asm("mov r8, r6 "); + asm("mov r9, r6 "); + asm("bgt hsp_loop_start2 "); + asm("str r7, [r5, #0] "); + __JUMP(,r11); + } +#endif // __KERNEL_MODE__ + +EXPORT_C __NAKED__ TAny* RArrayBase::At(TInt /*anIndex*/) const + { + asm("ldmia r0, {r2,r3,r12} "); // r2=iCount, r3=iEntries, r12=iEntrySize + asm("cmp r1, #0 "); // check anIndex>=0 + asm("cmpge r2, r1 "); // if so, check iCount>anIndex + asm("mlagt r0, r1, r12, r3 "); // if ok, r0=anIndex*iEntrySize+iEntries +#ifdef __CPU_ARMV6 + asm("ble 1f "); + __JUMP(,lr); +#else + __JUMP(gt,lr); +#endif + asm("1: "); + asm("b " CSM_Z18PanicBadArrayIndexv); + } + +EXPORT_C __NAKED__ TInt RArrayBase::Append(const TAny* /*anEntry*/) + { + asm("stmfd sp!, {lr} "); + asm("ldmia r0, {r3,r12} "); // r3=iCount, r12=iEntries + asm("ldr r2, [r0, #%a0]" : : "i" _FOFF(RArrayBase,iAllocated)); + asm("cmp r3, r2 "); + asm("beq simple_append_1 "); + asm("simple_append_0: "); + asm("add r2, r3, #1 "); + asm("str r2, [r0] "); // iCount++ + asm("ldr r2, [r0, #%a0]" : : "i" _FOFF(RArrayBase,iEntrySize)); + asm("mla r0, r2, r3, r12 "); // r0=iEntries+iEntrySize*iCount + asm("bl wordmove "); // r1=anEntry, r2=iEntrySize, do copy + asm("mov r0, #0 "); // return KErrNone; + __POPRET(""); + + asm("simple_append_1: "); + asm("stmfd sp!, {r0,r1,r2} "); + asm("bl " CSM_ZN10RArrayBase4GrowEv); + asm("cmp r0, #0 "); + asm("bne simple_append_2 "); + asm("ldmfd sp!, {r0,r1,r2} "); + asm("ldmia r0, {r3, r12} "); + asm("b simple_append_0 "); + asm("simple_append_2: "); // error enlarging array + asm("add sp, sp, #12 "); + __POPRET(""); + } + +EXPORT_C __NAKED__ TInt RArrayBase::Find(const TAny* /*anEntry*/) const + { + asm("ldmia r0, {r0,r2,r3,r12} "); // r0=count, r2=iEntries, r3=iEntrySize, r12=iKeyOffset + asm("stmfd sp!, {r4,lr} "); // save r4,lr + asm("subs r0, r0, #1 "); // r0 = count-1 + asm("blt 0f "); // skip if count was zero + asm("ldr r1, [r1, r12] "); // r1=key of match entry + asm("sub r4, r0, #1 "); // r4 = iCount-2 + asm("1: "); + asm("ldr lr, [r2, r12] "); // lr=key of current entry + asm("add r2, r2, r3 "); // step r2 to next entry + asm("subs r0, r0, #1 "); // C=1 iff this isn't last entry + asm("teq lr, r1 "); // check for match - C unaffected + asm("bhi 1b "); // loop if C=1 & Z=0, i.e. if no match and this isn't last entry + asm("0: "); + asm("mvnne r0, #0 "); // if no match, return -1 + asm("subeq r0, r4, r0 "); // if match, index = (iCount-2)-r0 + __POPRET("r4,"); + } + +EXPORT_C __NAKED__ TInt RArrayBase::Find(const TAny* /*anEntry*/, TGeneralIdentityRelation /*anIdentity*/) const + { + asm("stmfd sp!, {r4-r10,lr} "); // save r4-r10,lr + __EH_FRAME_PUSH2(r4-r10,lr) + asm("ldmia r0, {r4,r5,r6} "); // r4=count, r5=iEntries, r6=iEntrySize + asm("mov r8, r1 "); // r8=anEntry + asm("mov r9, r2 "); // r9=anIdentity + asm("sub r7, r4, #1 "); // r7=iCount-1 + asm("b simple_find2_start "); + asm("simple_find2_loop: "); + asm("mov r1, r5 "); // r1->current entry + asm("mov r0, r8 "); // r0=anEntry + __JUMPL(9); + asm("cmp r0, #0 "); + asm("bne simple_find2_return "); + asm("add r5, r5, r6 "); // else step to next entry + asm("simple_find2_start: "); + asm("subs r4, r4, #1 "); + asm("bpl simple_find2_loop "); + asm("add r4, r7, #1 "); // no match, arrange to return -1 + asm("simple_find2_return: "); + asm("sub r0, r7, r4 "); // index=count-r4 + __POPRET("r4-r10,"); + } + +EXPORT_C __NAKED__ TInt RArrayBase::BinarySearchSigned(const TAny* /*anEntry*/, TInt& /*anIndex*/) const + { + asm("mov r3, #0 "); + // fall through + } + +EXPORT_C __NAKED__ TInt RArrayBase::BinarySearchSigned(const TAny* /*anEntry*/, TInt& /*anIndex*/, TInt /*aMode*/) const + { + asm("stmfd sp!, {r4-r8,lr} "); + __EH_FRAME_PUSH2(r4-r8,lr) + asm("mov r8, r2 "); // r8=&anIndex + asm("ldmia r0, {r2,r4,r5,r6} "); // r2=count, r3=iEntries, r5=entry size, r6=key offset + asm("cmp r5, #4 "); // check for 4 byte entries + asm("ldr r1, [r1, r6] "); // r1=match key + asm("beq 1f "); // if 4 byte entries, call simpler routine + asm("bl BinarySearchSignedKey "); // if not, call general routine + asm("b 2f "); + asm("1: "); + asm("bl BinarySearchSigned "); // use simpler routine for 4 byte entries + asm("2: "); + asm("str r2, [r8] "); + __POPRET("r4-r8,"); + +// Binary search list of signed integers +// Match key in r1 +// List address in r4 +// Count in r2 +// Match mode in r3 +// EntrySize in r5, KeyOffset in r6 +// Return with: r0=0 if match found, r0 nonzero otherwise +// r2=index of match or next higher +// r7 modified + asm("BinarySearchSignedKey: "); +#ifdef _DEBUG + asm("cmp r3, #%a0" : : "i" ((TInt)EArrayFindMode_Limit) ); + asm("bhs PanicBadArrayFindMode "); +#endif + asm("mov r3, r3, lsl #30 "); // match mode -> bits 30,31 (00000000=any, 40000000=first, 80000000=last) + asm("orr r3, r3, #1 "); // set NOT FOUND flag + asm("cmp r2, #0 "); // r2 will be right index + asm("beq 0f "); + asm("mov r7, #0 "); // r7 will be left index + asm("1: "); + asm("add r12, r2, r7 "); + asm("mov r12, r12, lsr #1 "); // r12 = mid index + asm("mla r0, r12, r5, r6 "); // r0 = key offset + entry size * mid index + asm("ldr r0, [r4, r0] "); // r0 = key[mid] + asm("subs r0, r0, r1 "); // r0 = entry[mid] - match + asm("beq 2f "); // if match branch out + asm("3: "); + asm("addlt r7, r12, #1 "); // else if entrymatch right=mid + asm("subs r0, r2, r7 "); // right > left ? + asm("bgt 1b "); // r0 = 0 when loop terminates + asm("0: "); + asm("tst r3, #1 "); // test not found flag + asm("mvnnes r0, #0 "); // if set r0=-1 = KErrNotFound + __JUMP(,lr); + asm("2: "); + asm("bics r3, r3, #1 "); // clear NOT FOUND flag, test for find mode ANY (Z set if so) + asm("bne 3b "); // if not, V=0 (left from subs), N=1 for last, 0 for first, Z=0 => LAST->LT FIRST->GT + asm("mov r2, r12 "); // if so, r2 = mid + __JUMP(,lr); // and return with r0 = 0 + } + +EXPORT_C __NAKED__ TInt RArrayBase::BinarySearchUnsigned(const TAny* /*anEntry*/, TInt& /*anIndex*/) const + { + asm("mov r3, #0 "); + // fall through + } + +EXPORT_C __NAKED__ TInt RArrayBase::BinarySearchUnsigned(const TAny* /*anEntry*/, TInt& /*anIndex*/, TInt /*aMode*/) const + { + asm("stmfd sp!, {r4-r8,lr} "); + __EH_FRAME_PUSH2(r4-r8,lr) + asm("mov r8, r2 "); // r8=&anIndex + asm("ldmia r0, {r2,r4,r5,r6} "); // r2=count, r4=iEntries, r5=entry size, r6=key offset + asm("cmp r5, #4 "); // check for 4 byte entries + asm("ldr r1, [r1, r6] "); // r1=match key + asm("beq 1f "); // if 4 byte entries, call simpler routine + asm("bl BinarySearchUnsignedKey "); // if not, call general routine + asm("b 2f "); + asm("1: "); + asm("bl BinarySearchUnsigned "); // use simpler routine for 4 byte entries + asm("2: "); + asm("str r2, [r8] "); + __POPRET("r4-r8,"); + +// Binary search list of unsigned integers +// Match key in r1 +// List address in r4 +// Count in r2 +// Match mode in r3 +// EntrySize in r5, KeyOffset in r6 +// Return with: r0=0 if match found, r0 nonzero otherwise +// r2=index of match or next higher +// r7 modified + asm("BinarySearchUnsignedKey: "); +#ifdef _DEBUG + asm("cmp r3, #%a0" : : "i" ((TInt)EArrayFindMode_Limit) ); + asm("bhs PanicBadArrayFindMode "); +#endif + asm("mov r3, r3, lsl #30 "); // match mode -> bits 30,31 (00000000=any, 40000000=first, 80000000=last) + asm("orr r3, r3, #1 "); // set NOT FOUND flag + asm("cmp r2, #0 "); // r2 will be right index + asm("beq 0f "); + asm("mov r7, #0 "); // r7 will be left index + asm("1: "); + asm("add r12, r2, r7 "); + asm("mov r12, r12, lsr #1 "); // r12 = mid index + asm("mla r0, r12, r5, r6 "); // r0 = key offset + entry size * mid index + asm("ldr r0, [r4, r0] "); // r0 = key[mid] + asm("subs r0, r1, r0 "); // r0 = match - entry[mid] + asm("beq 2f "); // if match branch out + asm("3: "); + asm("addhi r7, r12, #1 "); // else if entrymatch right=mid LO = ~C + asm("subs r0, r2, r7 "); // right > left ? + asm("bgt 1b "); // r0 = 0 when loop terminates + asm("0: "); + asm("tst r3, #1 "); // test not found flag + asm("mvnnes r0, #0 "); // if set r0=-1 = KErrNotFound + __JUMP(,lr); + asm("2: "); // N=0 Z=1 C=1 V=0 r0=0 here + asm("bics r3, r3, #1 "); // clear NOT FOUND flag, test for find mode ANY (Z set if so) + asm("cmpne r3, #0x60000000 "); // HI if LAST, LO if FIRST + asm("bne 3b "); // if not ANY, branch back + asm("mov r2, r12 "); // if ANY, r2 = mid + __JUMP(,lr); // and return with r0 = 0 + } + +EXPORT_C __NAKED__ TInt RArrayBase::BinarySearch(const TAny* /*anEntry*/, TInt& /*anIndex*/, TGeneralLinearOrder /*anOrder*/, TInt /*aMode*/) const + { + asm("stmfd sp!, {r3-r11,lr} "); + // r3 is caller save + __EH_FRAME_ADDRESS(sp,4) + // we can push the callee save regs + __EH_FRAME_PUSH2(r4-r11,lr) + asm("ldmia r0, {r5,r6,r11} "); // r5=count, r6=iEntries, r11=entry size + asm("ldr r9, [sp, #40] "); // r9 = aMode + asm("mov r4, r1 "); // r4=anEntry + asm("mov r7, r3 "); // r7=anOrder + asm("bl BinarySearchEntries "); + asm("str r5, [r2] "); // store index + __POPRET("r3-r11,"); + + // Binary search list of general entries + // Pointer to match value in r4 + // List address in r6 + // Count in r5 + // Match mode in r9 + // Pointer to ordering function in r7 + // Entry size in r11 + // Return with: r0=0 if match found, r0 nonzero otherwise + // r5=index of match or next higher + // r9,r10 modified + // r2 preserved + asm("BinarySearchEntries: "); +#ifdef _DEBUG + asm("cmp r9, #%a0" : : "i" ((TInt)EArrayFindMode_Limit) ); + asm("bhs PanicBadArrayFindMode "); +#endif + asm("stmfd sp!, {r2,lr} "); + asm("movs r9, r9, lsl #30 "); // match mode -> bits 30,31 (00000000=any, 40000000=first, 80000000=last) + asm("eorne r9, r9, #0xC0000000 "); // match mode -> bits 30,31 (00000000=any, 80000000=first, 40000000=last) + asm("orr r9, r9, #1 "); // set NOT FOUND flag + asm("cmp r5, #0 "); // r5 will be right index + asm("beq 0f "); + asm("mov r10, #0 "); // r10 will be left index + asm("1: "); + asm("add r8, r5, r10 "); + asm("mov r8, r8, lsr #1 "); // r8 = mid index + asm("mla r1, r8, r11, r6 "); // r1 = r8*entry size + list address = &entry[mid] + asm("mov r0, r4 "); // r0 points to match value + __JUMPL(7); // call ordering function (match, entry) + asm("cmp r0, #0 "); + asm("biceq r9, r9, #1 "); // if match clear NOT FOUND flag + asm("addeqs r0, r0, r9 "); // and add match mode to r0 (>0 if LAST, <0 if FIRST, 0 if ANY) + asm("beq 2f "); // branch out if match and ANY + asm("addgt r10, r8, #1 "); // else if match > entry, left = mid + 1 + asm("movlt r5, r8 "); // else if match < entry, right = mid + asm("subs r0, r5, r10 "); // loop if right > left + asm("bgt 1b "); // finish loop with r0 = 0 + asm("0: "); + asm("tst r9, #1 "); // test not found flag + asm("mvnnes r0, #0 "); // if set r0=-1 = KErrNotFound + __POPRET("r2,"); + asm("2: "); + asm("mov r5, r8 "); // if ANY, r8 = mid + __POPRET("r2,"); // and return with r0 = 0, Z=1 + } + +EXPORT_C __NAKED__ TInt RArrayBase::FindIsqSigned(const TAny* /*anEntry*/) const + { + asm("mov r2, #0 "); + // fall through + } + +EXPORT_C __NAKED__ TInt RArrayBase::FindIsqSigned(const TAny* /*anEntry*/, TInt /*aMode*/) const + { +#ifdef __EABI__ + // sp needs to be aligned correctly + asm("stmfd sp!, {r4-r8,lr} "); + __EH_FRAME_PUSH2(r4-r8,lr) +#else + asm("stmfd sp!, {r4-r7,lr} "); +#endif + asm("mov r3, r2 "); // r3 = match mode + asm("ldmia r0, {r2,r4,r5,r6} "); // r2=count, r4=iEntries, r5=entry size, r6=key offset + asm("cmp r5, #4 "); // check for 4 byte entries + asm("ldr r1, [r1, r6] "); // r1=match key + asm("beq 1f "); // use simpler routine for 4 byte entries + asm("bl BinarySearchSignedKey "); // else call general routine + asm("b 2f "); + asm("1: "); + asm("bl BinarySearchSigned "); + asm("2: "); + asm("moveq r0, r2 "); // if match r0=index else r0=KErrNotFound +#ifdef __EABI__ + __POPRET("r4-r8,"); +#else + __POPRET("r4-r7,"); +#endif + } + +EXPORT_C __NAKED__ TInt RArrayBase::FindIsqUnsigned(const TAny* /*anEntry*/) const + { + asm("mov r2, #0 "); + // fall through + } + +EXPORT_C __NAKED__ TInt RArrayBase::FindIsqUnsigned(const TAny* /*anEntry*/, TInt /*aMode*/) const + { +#ifdef __EABI__ + // sp needs to be aligned correctly + asm("stmfd sp!, {r4-r8,lr} "); + __EH_FRAME_PUSH2(r4-r8,lr) +#else + asm("stmfd sp!, {r4-r7,lr} "); +#endif + asm("mov r3, r2 "); // r3 = match mode + asm("ldmia r0, {r2,r4,r5,r6} "); // r2=count, r4=iEntries, r5=entry size, r6=key offset + asm("cmp r5, #4 "); // check for 4 byte entries + asm("ldr r1, [r1, r6] "); // r1=match key + asm("beq 1f "); // use simpler routine for 4 byte entries + asm("bl BinarySearchUnsignedKey "); // else call general routine + asm("b 2f "); + asm("1: "); + asm("bl BinarySearchUnsigned "); + asm("2: "); + asm("moveq r0, r2 "); // if match r0=index else r0=KErrNotFound +#ifdef __EABI__ + __POPRET("r4-r8,"); +#else + __POPRET("r4-r7,"); +#endif + } + +EXPORT_C __NAKED__ TInt RArrayBase::FindIsq(const TAny* /*anEntry*/, TGeneralLinearOrder /*anOrder*/) const + { + asm("mov r3, #0 "); + // fall through + } + +EXPORT_C __NAKED__ TInt RArrayBase::FindIsq(const TAny* /*anEntry*/, TGeneralLinearOrder /*anOrder*/, TInt /*aMode*/) const + { + asm("stmfd sp!, {r3-r11,lr} "); + // r3 is caller save + __EH_FRAME_ADDRESS(sp,4) + // we can push the callee save regs + __EH_FRAME_PUSH2(r4-r11,lr) + asm("ldmia r0, {r5,r6,r11} "); // r5=count, r6=iEntries, r11=entry size + asm("mov r4, r1 "); // r4=anEntry + asm("mov r7, r2 "); // r7=anOrder + asm("mov r9, r3 "); // r9 = aMode + asm("bl BinarySearchEntries "); + asm("moveq r0, r5 "); // if match r0=index + __POPRET("r3-r11,"); + } + +#ifndef __KERNEL_MODE__ +EXPORT_C __NAKED__ void RArrayBase::HeapSortSigned() + { +#ifdef __EABI__ + // need sp aligned correctly + asm("stmfd sp!, {r3-r11,lr} "); + __EH_FRAME_ADDRESS(sp,4) + __EH_FRAME_PUSH2(r4-r11,lr) +#else + asm("stmfd sp!, {r4-r11,lr} "); +#endif + asm("ldmia r0, {r4,r5,r10,r11} "); // r4=iCount, r5=iEntries, r10=entry size, r11=key offset + asm("cmp r10, #4 "); + asm("bleq HeapSortSigned "); + asm("cmp r10, #4 "); + asm("blne HeapSortSignedKey "); +#ifdef __EABI__ + __POPRET("r3-r11,"); +#else + __POPRET("r4-r11,"); +#endif + + // Heap sort list of entries by signed key + // List address in r5, count in r4, entry size in r10, key offset in r11 + // r4=ss, r6=sh + // r8,r9 modified + asm("HeapSortSignedKey: "); + asm("cmp r4, #1 "); + __JUMP(le,lr); + asm("mov r7, lr "); // save lr in r7 + asm("sub sp, sp, r10 "); // get some temporary space on the stack + asm("mov r6, r4, lsr #1 "); + asm("hssk_loop_start1: "); + asm("sub r6, r6, #1 "); + asm("mla r1, r6, r10, r5 "); // [sp]=entry[r6] + asm("mov r0, sp "); + asm("mov r2, r10 "); + asm("bl wordmove "); + asm("mov r8, r6 "); + asm("mov r9, r6 "); + asm("b hssk_loop_start2 "); + asm("hssk_loop_inner: "); + asm("mla r0, r9, r10, r5 "); // r0=&entry[r9] + asm("mla r1, r8, r10, r5 "); // r1=&entry[r8] + asm("mov r2, r10 "); + asm("bl wordmove "); // entry[r9]=entry[r8] + asm("mov r9, r8 "); + asm("hssk_loop_start2: "); + asm("add r8, r8, #1 "); + asm("add r8, r8, r8 "); + asm("cmp r8, r4 "); + asm("bgt hssk_loop_inner_end "); + asm("mla r0, r8, r10, r5 "); + asm("ldrne r2, [r0, r11]! "); // r2=key[r8] + asm("addeq r0, r0, r11 "); + asm("ldr r1, [r0, -r10] "); // r1=key[r8-1] + asm("subeq r8, r8, #1 "); + asm("beq hssk_loop_inner2 "); + asm("cmp r1, r2 "); + asm("subgt r8, r8, #1 "); + asm("movle r1, r2 "); + asm("hssk_loop_inner2: "); + asm("ldr r2, [sp, r11] "); // r2=key[sp] + asm("cmp r1, r2 "); + asm("bgt hssk_loop_inner "); + asm("hssk_loop_inner_end: "); + asm("mla r0, r9, r10, r5 "); // r0=&entry[r9] + asm("mov r1, sp "); + asm("mov r2, r10 "); + asm("bl wordmove "); // entry[r9]=[sp] + asm("cmp r6, #0 "); + asm("bne hssk_loop_start1 "); + asm("sub r4, r4, #1 "); + asm("mla r1, r4, r10, r5 "); // r1=&entry[r4] + asm("mov r0, sp "); + asm("mov r2, r10 "); + asm("bl wordmove "); // [sp]=entry[r4] + asm("mla r0, r4, r10, r5 "); // r0=&entry[r4] + asm("mov r1, r5 "); // r1=&entry[0] + asm("mov r2, r10 "); + asm("bl wordmove "); // entry[0]=entry[r4] + asm("cmp r4, #1 "); + asm("mov r8, r6 "); + asm("mov r9, r6 "); + asm("bgt hssk_loop_start2 "); + asm("mov r0, r5 "); // r0=&entry[0] + asm("mov r1, sp "); + asm("mov r2, r10 "); + asm("bl wordmove "); // entry[0]=[sp] + asm("add sp, sp, r10 "); // free temporary stack space + __JUMP(,r7); + } + +EXPORT_C __NAKED__ void RArrayBase::HeapSortUnsigned() + { +#ifdef __EABI__ + // need sp aligned correctly + asm("stmfd sp!, {r3-r11,lr} "); + __EH_FRAME_ADDRESS(sp,4) + __EH_FRAME_PUSH2(r4-r11,lr) +#else + asm("stmfd sp!, {r4-r11,lr} "); +#endif + asm("ldmia r0, {r4,r5,r10,r11} "); // r4=iCount, r5=iEntries, r10=entry size, r11=key offset + asm("cmp r10, #4 "); + asm("bleq HeapSortUnsigned "); + asm("cmp r10, #4 "); + asm("blne HeapSortUnsignedKey "); +#ifdef __EABI__ + __POPRET("r3-r11,"); +#else + __POPRET("r4-r11,"); +#endif + + // Heap sort list of entries by unsigned key + // List address in r5, count in r4, entry size in r10, key offset in r11 + // r4=ss, r6=sh + // r8,r9 modified + asm("HeapSortUnsignedKey: "); + asm("cmp r4, #1 "); + __JUMP(le,lr); + asm("mov r7, lr "); // save lr in r7 + asm("sub sp, sp, r10 "); // get some temporary space on the stack + asm("mov r6, r4, lsr #1 "); + asm("hsuk_loop_start1: "); + asm("sub r6, r6, #1 "); + asm("mla r1, r6, r10, r5 "); // [sp]=entry[r6] + asm("mov r0, sp "); + asm("mov r2, r10 "); + asm("bl wordmove "); + asm("mov r8, r6 "); + asm("mov r9, r6 "); + asm("b hsuk_loop_start2 "); + asm("hsuk_loop_inner: "); + asm("mla r0, r9, r10, r5 "); // r0=&entry[r9] + asm("mla r1, r8, r10, r5 "); // r1=&entry[r8] + asm("mov r2, r10 "); + asm("bl wordmove "); // entry[r9]=entry[r8] + asm("mov r9, r8 "); + asm("hsuk_loop_start2: "); + asm("add r8, r8, #1 "); + asm("add r8, r8, r8 "); + asm("cmp r8, r4 "); + asm("bgt hsuk_loop_inner_end "); + asm("mla r0, r8, r10, r5 "); + asm("ldrne r2, [r0, r11]! "); // r2=key[r8] + asm("addeq r0, r0, r11 "); + asm("ldr r1, [r0, -r10] "); // r1=key[r8-1] + asm("subeq r8, r8, #1 "); + asm("beq hsuk_loop_inner2 "); + asm("cmp r1, r2 "); + asm("subhi r8, r8, #1 "); + asm("movls r1, r2 "); + asm("hsuk_loop_inner2: "); + asm("ldr r2, [sp, r11] "); // r2=key[sp] + asm("cmp r1, r2 "); + asm("bhi hsuk_loop_inner "); + asm("hsuk_loop_inner_end: "); + asm("mla r0, r9, r10, r5 "); // r0=&entry[r9] + asm("mov r1, sp "); + asm("mov r2, r10 "); + asm("bl wordmove "); // entry[r9]=[sp] + asm("cmp r6, #0 "); + asm("bne hsuk_loop_start1 "); + asm("sub r4, r4, #1 "); + asm("mla r1, r4, r10, r5 "); // r1=&entry[r4] + asm("mov r0, sp "); + asm("mov r2, r10 "); + asm("bl wordmove "); // [sp]=entry[r4] + asm("mla r0, r4, r10, r5 "); // r0=&entry[r4] + asm("mov r1, r5 "); // r1=&entry[0] + asm("mov r2, r10 "); + asm("bl wordmove "); // entry[0]=entry[r4] + asm("cmp r4, #1 "); + asm("mov r8, r6 "); + asm("mov r9, r6 "); + asm("bgt hsuk_loop_start2 "); + asm("mov r0, r5 "); // r0=&entry[0] + asm("mov r1, sp "); + asm("mov r2, r10 "); + asm("bl wordmove "); // entry[0]=[sp] + asm("add sp, sp, r10 "); // free temporary stack space + __JUMP(,r7); + } + +EXPORT_C __NAKED__ void RArrayBase::HeapSort(TGeneralLinearOrder anOrder) + { +#ifdef __EABI__ + // need sp aligned correctly + asm("stmfd sp!, {r3-r11,lr} "); + __EH_FRAME_ADDRESS(sp,4) + __EH_FRAME_PUSH2(r4-r11,lr) +#else + asm("stmfd sp!, {r4-r11,lr} "); +#endif + asm("ldmia r0, {r4,r5,r10,r11} "); + asm("mov r7, r1 "); + asm("bl HeapSortEntries "); +#ifdef __EABI__ + __POPRET("r3-r11,"); +#else + __POPRET("r4-r11,"); +#endif + + // Heap sort list of entries + // List address in r5, count in r4, entry size in r10, key offset in r11 + // Address of ordering function in r7 + // r4=ss, r6=sh + // r8,r9 modified + asm("HeapSortEntries: "); + asm("cmp r4, #1 "); + __JUMP(le,lr); + asm("str lr, [sp, #-4]! "); + asm("mov r8, sp "); // original SP + asm("sub sp, sp, r10 "); // get some temporary space on the stack + asm("sub sp, sp, #4 "); // make room for original SP + asm("bic sp, sp, #4 "); // align stack to 8 byte boundary + asm("str r8, [sp, r10] "); // save original SP + asm("mov r6, r4, lsr #1 "); + asm("hse_loop_start1: "); + asm("sub r6, r6, #1 "); + asm("mla r1, r6, r10, r5 "); // [sp]=entry[r6] + asm("mov r0, sp "); + asm("mov r2, r10 "); + asm("bl wordmove "); + asm("mov r8, r6 "); + asm("mov r9, r6 "); + asm("b hse_loop_start2 "); + asm("hse_loop_inner: "); + asm("mla r0, r9, r10, r5 "); // r0=&entry[r9] + asm("mla r1, r8, r10, r5 "); // r1=&entry[r8] + asm("mov r2, r10 "); + asm("bl wordmove "); // entry[r9]=entry[r8] + asm("mov r9, r8 "); + asm("hse_loop_start2: "); + asm("add r8, r8, #1 "); + asm("add r8, r8, r8 "); + asm("cmp r8, r4 "); + asm("bgt hse_loop_inner_end "); + asm("subeq r8, r8, #1 "); + asm("beq hse_loop_inner2 "); + asm("mla r1, r8, r10, r5 "); // r1=&entry[r8] + asm("sub r0, r1, r10 "); // r0=&entry[r8-1] + __JUMPL(7); + asm("cmp r0, #0 "); // compare entry[r8-1] with entry[r8] + asm("subgt r8, r8, #1 "); + asm("hse_loop_inner2: "); + asm("mla r0, r8, r10, r5 "); // r0=&entry[r8] + asm("mov r1, sp "); + __JUMPL(7); + asm("cmp r0, #0 "); // compare entry[r8] with [sp] + asm("bgt hse_loop_inner "); + asm("hse_loop_inner_end: "); + asm("mla r0, r9, r10, r5 "); // r0=&entry[r9] + asm("mov r1, sp "); + asm("mov r2, r10 "); + asm("bl wordmove "); // entry[r9]=[sp] + asm("cmp r6, #0 "); + asm("bne hse_loop_start1 "); + asm("sub r4, r4, #1 "); + asm("mla r1, r4, r10, r5 "); // r1=&entry[r4] + asm("mov r0, sp "); + asm("mov r2, r10 "); + asm("bl wordmove "); // [sp]=entry[r4] + asm("mla r0, r4, r10, r5 "); // r0=&entry[r4] + asm("mov r1, r5 "); // r1=&entry[0] + asm("mov r2, r10 "); + asm("bl wordmove "); // entry[0]=entry[r4] + asm("cmp r4, #1 "); + asm("mov r8, r6 "); + asm("mov r9, r6 "); + asm("bgt hse_loop_start2 "); + asm("mov r0, r5 "); // r0=&entry[0] + asm("mov r1, sp "); + asm("mov r2, r10 "); + asm("bl wordmove "); // entry[0]=[sp] + asm("ldr sp, [sp, r10] "); // restore stack pointer, freeing temporary stack space + __POPRET(""); + } +#endif // __KERNEL_MODE__ +#endif // __ARRAY_MACHINE_CODED__