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/*

 * Copyright (C) 2005 Martin Decky

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * - Redistributions of source code must retain the above copyright

 *   notice, this list of conditions and the following disclaimer.

 * - Redistributions in binary form must reproduce the above copyright

 *   notice, this list of conditions and the following disclaimer in the

 *   documentation and/or other materials provided with the distribution.

 * - The name of the author may not be used to endorse or promote products

 *   derived from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

/*

 * PPC assembler macros

 */

/* Condition Register Bit Fields */

#define cr0 0

#define cr1 1

#define cr2 2

#define cr3 3

#define cr4 4

#define cr5 5

#define cr6 6

#define cr7 7

/* General Purpose Registers (GPRs) */

#define r0  0

#define r1  1

#define r2  2

#define r3  3

#define r4  4

#define r5  5

#define r6  6

#define r7  7

#define r8  8

#define r9  9

#define r10 10

#define r11 11

#define r12 12

#define r13 13

#define r14 14

#define r15 15

#define r16 16

#define r17 17

#define r18 18

#define r19 19

#define r20 20

#define r21 21

#define r22 22

#define r23 23

#define r24 24

#define r25 25

#define r26 26

#define r27 27

#define r28 28

#define r29 29

#define r30 30

#define r31 31

/* GPR Aliases */

#define sp  1

/* Floating Point Registers (FPRs) */

#define fr0 0

#define fr1 1

#define fr2 2

#define fr3 3

#define fr4 4

#define fr5 5

#define fr6 6

#define fr7 7

#define fr8 8

#define fr9 9

#define fr10    10

#define fr11    11

#define fr12    12

#define fr13    13

#define fr14    14

#define fr15    15

#define fr16    16

#define fr17    17

#define fr18    18

#define fr19    19

#define fr20    20

#define fr21    21

#define fr22    22

#define fr23    23

#define fr24    24

#define fr25    25

#define fr26    26

#define fr27    27

#define fr28    28

#define fr29    29

#define fr30    30

#define fr31    31

#define vr0 0

#define vr1 1

#define vr2 2

#define vr3 3

#define vr4 4

#define vr5 5

#define vr6 6

#define vr7 7

#define vr8 8

#define vr9 9

#define vr10    10

#define vr11    11

#define vr12    12

#define vr13    13

#define vr14    14

#define vr15    15

#define vr16    16

#define vr17    17

#define vr18    18

#define vr19    19

#define vr20    20

#define vr21    21

#define vr22    22

#define vr23    23

#define vr24    24

#define vr25    25

#define vr26    26

#define vr27    27

#define vr28    28

#define vr29    29

#define vr30    30

#define vr31    31

#define evr0    0

#define evr1    1

#define evr2    2

#define evr3    3

#define evr4    4

#define evr5    5

#define evr6    6

#define evr7    7

#define evr8    8

#define evr9    9

#define evr10   10

#define evr11   11

#define evr12   12

#define evr13   13

#define evr14   14

#define evr15   15

#define evr16   16

#define evr17   17

#define evr18   18

#define evr19   19

#define evr20   20

#define evr21   21

#define evr22   22

#define evr23   23

#define evr24   24

#define evr25   25

#define evr26   26

#define evr27   27

#define evr28   28

#define evr29   29

#define evr30   30

#define evr31   31

/* Special Purpose Registers (SPRs) */

#define xer 1

#define lr  8

#define ctr 9

#define dec 22

#define srr0    26

#define srr1    27

#define sprg0   272

#define sprg1   273

#define sprg2   274

#define sprg3   275

#define prv 287

.macro REGISTERS_STORE r

    stw r0, 0(\r)

    stw r1, 4(\r)

    stw r2, 8(\r)

    stw r3, 12(\r)

    stw r4, 16(\r)

    stw r5, 20(\r)

    stw r6, 24(\r)

    stw r7, 28(\r)

    stw r8, 32(\r)

    stw r9, 36(\r)

    stw r10, 40(\r)

    stw r11, 44(\r)

    stw r12, 48(\r)

    stw r13, 52(\r)

    stw r14, 56(\r)

    stw r15, 60(\r)

    stw r16, 64(\r)

    stw r17, 68(\r)

    stw r18, 72(\r)

    stw r19, 76(\r)

    stw r20, 80(\r)

    stw r21, 84(\r)

    stw r22, 88(\r)

    stw r23, 92(\r)

    stw r24, 96(\r)

    stw r25, 100(\r)

    stw r26, 104(\r)

    stw r27, 108(\r)

    stw r28, 112(\r)

    stw r29, 116(\r)

    stw r30, 120(\r)

    stw r31, 124(\r)

.endm

.macro REGISTERS_LOAD r

    lwz r0, 0(\r)

    lwz r1, 4(\r)

    lwz r2, 8(\r)  

    lwz r3, 12(\r)

    lwz r4, 16(\r)

    lwz r5, 20(\r)

    lwz r6, 24(\r)

    lwz r7, 28(\r)

    lwz r8, 32(\r)

    lwz r9, 36(\r)

    lwz r10, 40(\r)

    lwz r11, 44(\r)

    lwz r12, 48(\r)

    lwz r13, 52(\r)

    lwz r14, 56(\r)

    lwz r15, 60(\r)

    lwz r16, 64(\r)

    lwz r17, 68(\r)

    lwz r18, 72(\r)

    lwz r19, 76(\r)

    lwz r20, 80(\r)

    lwz r21, 84(\r)

    lwz r22, 88(\r)

    lwz r23, 92(\r)

    lwz r24, 96(\r)

    lwz r25, 100(\r)

    lwz r26, 104(\r)

    lwz r27, 108(\r)

    lwz r28, 112(\r)

    lwz r29, 116(\r)

    lwz r30, 120(\r)

    lwz r31, 124(\r)

.endm