/* * "Indirect" DCR access * * Copyright (c) 2004 Eugene Surovegin <ebs@ebshome.net> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. */ #include <asm/ppc_asm.h> #include <asm/processor.h> #define DCR_ACCESS_PROLOG(table) \ rlwinm r3,r3,4,18,27; \ lis r5,table@h; \ ori r5,r5,table@l; \ add r3,r3,r5; \ mtctr r3; \ bctr _GLOBAL(__mfdcr) DCR_ACCESS_PROLOG(__mfdcr_table) _GLOBAL(__mtdcr) DCR_ACCESS_PROLOG(__mtdcr_table) __mfdcr_table: mfdcr r3,0; blr __mtdcr_table: mtdcr 0,r4; blr dcr = 1 .rept 1023 mfdcr r3,dcr; blr mtdcr dcr,r4; blr dcr = dcr + 1 .endr