/* * Common registers for PPC AES implementation * * Copyright (c) 2015 Markus Stockhausen <stockhausen@collogia.de> * * 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. * */ #define rKS r0 /* copy of en-/decryption key pointer */ #define rDP r3 /* destination pointer */ #define rSP r4 /* source pointer */ #define rKP r5 /* pointer to en-/decryption key pointer */ #define rRR r6 /* en-/decryption rounds */ #define rLN r7 /* length of data to be processed */ #define rIP r8 /* potiner to IV (CBC/CTR/XTS modes) */ #define rKT r9 /* pointer to tweak key (XTS mode) */ #define rT0 r11 /* pointers to en-/decryption tables */ #define rT1 r10 #define rD0 r9 /* data */ #define rD1 r14 #define rD2 r12 #define rD3 r15 #define rW0 r16 /* working registers */ #define rW1 r17 #define rW2 r18 #define rW3 r19 #define rW4 r20 #define rW5 r21 #define rW6 r22 #define rW7 r23 #define rI0 r24 /* IV */ #define rI1 r25 #define rI2 r26 #define rI3 r27 #define rG0 r28 /* endian reversed tweak (XTS mode) */ #define rG1 r29 #define rG2 r30 #define rG3 r31