120 lines
1.9 KiB
ArmAsm
120 lines
1.9 KiB
ArmAsm
/*
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* Copyright (C) 2002 Paul Mackerras, IBM Corp.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <asm/processor.h>
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#include <asm/ppc_asm.h>
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_GLOBAL(copy_4K_page)
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std r31,-8(1)
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std r30,-16(1)
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std r29,-24(1)
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std r28,-32(1)
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std r27,-40(1)
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std r26,-48(1)
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std r25,-56(1)
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std r24,-64(1)
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std r23,-72(1)
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std r22,-80(1)
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std r21,-88(1)
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std r20,-96(1)
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li r5,4096/32 - 1
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addi r3,r3,-8
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li r12,5
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0: addi r5,r5,-24
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mtctr r12
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ld r22,640(4)
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ld r21,512(4)
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ld r20,384(4)
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ld r11,256(4)
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ld r9,128(4)
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ld r7,0(4)
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ld r25,648(4)
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ld r24,520(4)
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ld r23,392(4)
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ld r10,264(4)
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ld r8,136(4)
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ldu r6,8(4)
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cmpwi r5,24
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1: std r22,648(3)
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std r21,520(3)
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std r20,392(3)
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std r11,264(3)
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std r9,136(3)
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std r7,8(3)
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ld r28,648(4)
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ld r27,520(4)
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ld r26,392(4)
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ld r31,264(4)
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ld r30,136(4)
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ld r29,8(4)
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std r25,656(3)
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std r24,528(3)
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std r23,400(3)
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std r10,272(3)
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std r8,144(3)
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std r6,16(3)
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ld r22,656(4)
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ld r21,528(4)
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ld r20,400(4)
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ld r11,272(4)
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ld r9,144(4)
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ld r7,16(4)
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std r28,664(3)
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std r27,536(3)
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std r26,408(3)
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std r31,280(3)
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std r30,152(3)
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stdu r29,24(3)
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ld r25,664(4)
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ld r24,536(4)
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ld r23,408(4)
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ld r10,280(4)
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ld r8,152(4)
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ldu r6,24(4)
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bdnz 1b
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std r22,648(3)
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std r21,520(3)
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std r20,392(3)
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std r11,264(3)
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std r9,136(3)
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std r7,8(3)
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addi r4,r4,640
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addi r3,r3,648
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bge 0b
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mtctr r5
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ld r7,0(4)
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ld r8,8(4)
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ldu r9,16(4)
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3: ld r10,8(4)
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std r7,8(3)
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ld r7,16(4)
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std r8,16(3)
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ld r8,24(4)
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std r9,24(3)
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ldu r9,32(4)
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stdu r10,32(3)
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bdnz 3b
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4: ld r10,8(4)
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std r7,8(3)
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std r8,16(3)
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std r9,24(3)
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std r10,32(3)
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9: ld r20,-96(1)
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ld r21,-88(1)
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ld r22,-80(1)
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ld r23,-72(1)
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ld r24,-64(1)
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ld r25,-56(1)
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ld r26,-48(1)
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ld r27,-40(1)
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ld r28,-32(1)
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ld r29,-24(1)
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ld r30,-16(1)
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ld r31,-8(1)
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blr
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