/*

* Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "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:  Graphics Extension Library source file

 *

*/

@

@       ClearAsm - Clear a contiguous block of memory Fast!

@

@   This function writes a contiguous block of memory very fast with a single

@ color.  The size of the block must be a multiple of 16 pixels (32 bytes).

@

@       r0 = Pointer to this class (not used).

@       r1 = Address of memory block to clear.

@       r2 = Color.

@       r3 = Size of block to clear (in 16 pixel increments).

        .align  2

        .globl  ClearAsm__8CGfx2dGcPiii

@       .thumb_func

@       .code   16

ClearAsm__8CGfx2dGcPiii:

        stmfd   sp!, {r4-r9}

        mov     r0,r1                   @ Save address and size.

        mov     r9,r3

        orr     r2,r2,r2,lsl #16        @ Replicate color pattern.

        mov     r1,r2           

        mov     r3,r2          

        mov     r4,r2

        mov     r5,r2

        mov     r6,r2

        mov     r7,r2

        mov     r8,r2

loop:   stmia   r0!,{r1-r8}

        subs    r9,r9,#1

        bne     loop

        ldmfd   sp!, {r4-r9}

        bx      lr