Mercurial > pub > dyncall > dyncall
view dyncallback/dyncall_thunk_ppc32.c @ 345:c607d67cd6b8 r1.1-RC2
- doc: added syscall info to appendix, fixed broken literature link
- cleanup, added missing forward declarations, ...
author | Tassilo Philipp |
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date | Tue, 07 Jan 2020 21:52:57 +0100 |
parents | f5577f6bf97a |
children |
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/* Package: dyncall Library: dyncallback File: dyncallback/dyncall_thunk_ppc32.c Description: Thunk - Implementation for ppc32 darwin/apple License: Copyright (c) 2007-2018 Daniel Adler <dadler@uni-goettingen.de>, Tassilo Philipp <tphilipp@potion-studios.com> Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include "dyncall_thunk.h" static unsigned short hi16(x) { return ( (unsigned short) (((unsigned int)x)>>16UL) ); } static unsigned short lo16(x) { return ( (unsigned short) ((unsigned int)x) ); } void dcbInitThunk(DCThunk* p, void (*entry)()) { /* ppc32 thunk code: lis r2 , HI16(p) ori r2 , r2, LO16(p) lwz r12, 20(r2) mtctr r12 bctr */ p->code_load_hi = 0x3c40U; /* lis r2, HI16(p) */ p->addr_self_hi = hi16(p); p->code_load_lo = 0x6042U; /* ori r2, r2, LO16(p) */ p->addr_self_lo = lo16(p); p->code_jump[0] = 0x81820014U; /* lwz r12, 20(r2) */ p->code_jump[1] = 0x7d8903a6U; /* mtclr r12 */ p->code_jump[2] = 0x4e800420U; /* bctr */ p->addr_entry = entry; }