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/* This is a simple version of setjmp and longjmp for the PowerPC.
   Ian Lance Taylor, Cygnus Support, 9 Feb 1994.  */

#include "ppc-asm.h"

FUNC_START(setjmp)
        addi    3,3,7           # align to 8 byte boundary
        rlwinm  3,3,0,0,28
        stw     1,0(3)          # offset 0
        stwu    2,4(3)          # offset 4
        stwu    13,4(3)         # offset 8
        stwu    14,4(3)         # offset 12
        stwu    15,4(3)         # offset 16
        stwu    16,4(3)         # offset 20
        stwu    17,4(3)         # offset 24
        stwu    18,4(3)         # offset 28
        stwu    19,4(3)         # offset 32
        stwu    20,4(3)         # offset 36
        stwu    21,4(3)         # offset 40
        stwu    22,4(3)         # offset 44
        stwu    23,4(3)         # offset 48
        stwu    24,4(3)         # offset 52
        stwu    25,4(3)         # offset 56
        stwu    26,4(3)         # offset 60
        stwu    27,4(3)         # offset 64
        stwu    28,4(3)         # offset 68
        stwu    29,4(3)         # offset 72
        stwu    30,4(3)         # offset 76
        stwu    31,4(3)         # offset 80
        mflr    4
        stwu    4,4(3)          # offset 84
        mfcr    4
        stwu    4,4(3)          # offset 88
                                # one word pad to get floating point aligned on 8 byte boundary
#ifndef _SOFT_FLOAT
        stfdu   14,8(3)         # offset 96
        stfdu   15,8(3)         # offset 104
        stfdu   16,8(3)         # offset 112
        stfdu   17,8(3)         # offset 120
        stfdu   18,8(3)         # offset 128
        stfdu   19,8(3)         # offset 136
        stfdu   20,8(3)         # offset 144
        stfdu   21,8(3)         # offset 152
        stfdu   22,8(3)         # offset 160
        stfdu   23,8(3)         # offset 168
        stfdu   24,8(3)         # offset 176
        stfdu   25,8(3)         # offset 184
        stfdu   26,8(3)         # offset 192
        stfdu   27,8(3)         # offset 200
        stfdu   28,8(3)         # offset 208
        stfdu   29,8(3)         # offset 216
        stfdu   30,8(3)         # offset 224
        stfdu   31,8(3)         # offset 232
#endif

        /* This requires a total of 21 * 4 + 18 * 8 + 4 + 4 + 4
           bytes == 60 * 4 bytes == 240 bytes.  */

        li      3,0
        blr
FUNC_END(setjmp)


FUNC_START(longjmp)
        addi    3,3,7           # align to 8 byte boundary
        rlwinm  3,3,0,0,28
        lwz     1,0(3)          # offset 0 
        lwzu    2,4(3)          # offset 4 
        lwzu    13,4(3)         # offset 8 
        lwzu    14,4(3)         # offset 12
        lwzu    15,4(3)         # offset 16
        lwzu    16,4(3)         # offset 20
        lwzu    17,4(3)         # offset 24
        lwzu    18,4(3)         # offset 28
        lwzu    19,4(3)         # offset 32
        lwzu    20,4(3)         # offset 36
        lwzu    21,4(3)         # offset 40
        lwzu    22,4(3)         # offset 44
        lwzu    23,4(3)         # offset 48
        lwzu    24,4(3)         # offset 52
        lwzu    25,4(3)         # offset 56
        lwzu    26,4(3)         # offset 60
        lwzu    27,4(3)         # offset 64
        lwzu    28,4(3)         # offset 68
        lwzu    29,4(3)         # offset 72
        lwzu    30,4(3)         # offset 76
        lwzu    31,4(3)         # offset 80
        lwzu    5,4(3)          # offset 84
        mtlr    5
        lwzu    5,4(3)          # offset 88
        mtcrf   255,5
                                # one word pad to get floating point aligned on 8 byte boundary
#ifndef _SOFT_FLOAT
        lfdu    14,8(3)         # offset 96 
        lfdu    15,8(3)         # offset 104
        lfdu    16,8(3)         # offset 112
        lfdu    17,8(3)         # offset 120
        lfdu    18,8(3)         # offset 128
        lfdu    19,8(3)         # offset 136
        lfdu    20,8(3)         # offset 144
        lfdu    21,8(3)         # offset 152
        lfdu    22,8(3)         # offset 160
        lfdu    23,8(3)         # offset 168
        lfdu    24,8(3)         # offset 176
        lfdu    25,8(3)         # offset 184
        lfdu    26,8(3)         # offset 192
        lfdu    27,8(3)         # offset 200
        lfdu    28,8(3)         # offset 208
        lfdu    29,8(3)         # offset 216
        lfdu    30,8(3)         # offset 224
        lfdu    31,8(3)         # offset 232
#endif

        mr.     3,4
        bclr+   4,2
        li      3,1
        blr
FUNC_END(longjmp)