/* Trampoline for rs6000 CPU */
/*
* Copyright 1995 Bruno Haible, <bruno@clisp.org>
*
* This is free software distributed under the GNU General Public Licence
* described in the file COPYING. Contact the author if you don't have this
* or can't live with it. There is ABSOLUTELY NO WARRANTY, explicit or implied,
* on this software.
*/
/* Available registers: r0, r11, r10, r8, r7, r6, r5, r4, maybe r9. */
/* However, r0 is special in that it cannot be used as a base register. */
.globl .tramp
.csect .text[PR]
.tramp:
/* Move <data> into <variable> */
liu 11,0x1234
oril 11,11,0x5678
liu 10,0x7355
oril 10,10,0x4711
st 10,0(11)
/* Get <function> */
liu 10,0xbabe
oril 10,10,0xbec0
/*
* gcc-2.6.3 source says:
* A function pointer is a pointer to a data area whose first word contains
* the actual address of the function, whose second word contains a pointer
* to its TOC, and whose third word contains a value to place in the static
* chain register (r11).
*/
l 11,8(10) /* pass static chain in r11 */
l 2,4(10) /* pass TOC in r2 */
l 0,0(10) /* actual code address */
mtctr 0
bctr