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/* Trampoline for powerpc CPU with AIX calling convention */
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* Copyright 1995-2006 Bruno Haible, <bruno@clisp.org>
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* This is free software distributed under the GNU General Public Licence
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* described in the file COPYING. Contact the author if you don't have this
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* or can't live with it. There is ABSOLUTELY NO WARRANTY, explicit or implied,
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/* Available registers: r0, r12, r11, r10, r9, r8, r7, r6, r5, r4, r3. */
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/* However, r0 is special in that it cannot be used as a base register. */
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/* And r3...r10 should not be clobbered because they contain the first 8
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* integer arguments to the function being called. */
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/* Move <data> into register r11 */
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lwz 11,0(2) /* get <data> */
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* gcc-2.6.3 source says:
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* A function pointer is a pointer to a data area whose first word contains
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* the actual address of the function, whose second word contains a pointer
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* to its TOC, and whose third word contains a value to place in the static
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* chain register (r11). But we have already placed our information in r11.
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/* lwz 11,8(12) pass static chain in r11 */
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lwz 2,4(12) /* pass TOC in r2 */
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lwz 0,0(12) /* actual code address */