96 lines
2.5 KiB
C
96 lines
2.5 KiB
C
/*
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Copyright (C) 1997-2007 ZSNES Team ( zsKnight, _Demo_, pagefault, Nach )
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http://www.zsnes.com
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http://sourceforge.net/projects/zsnes
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https://zsnes.bountysource.com
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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version 2 as published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*
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Introducing 'the "DJGPP/MinGW/MSVC/GCC on *nix compatible" call asm function
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safely from C/C++' macro function!
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Usage:
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asm_call( func_name );
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That's all there is to it!!!
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Note: Make sure this is used on a line by itself if the file will ever be
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compiled with MSVC, since it's preproccessor won't parse the inline
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assembly correctly if other stuff are on the line
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Note: This will not work with GCC when using the parameter -MASM=intel
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I'd fix that if anyone knows if that parameter defines something I can check
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-Nach
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*/
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#ifndef ASM_CALL_H
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#define ASM_CALL_H
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////////////////////////////////////////////////////////
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#ifdef __GNUC__
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#define ASM_COMMAND(line) #line"\n\t"
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#ifdef __x86_64__
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#define PUSHAD ASM_COMMAND(pushq %rax) \
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ASM_COMMAND(pushq %rcx) \
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ASM_COMMAND(pushq %rdx) \
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ASM_COMMAND(pushq %rbx) \
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ASM_COMMAND(pushq %rsp) \
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ASM_COMMAND(pushq %rbp) \
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ASM_COMMAND(pushq %rsi) \
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ASM_COMMAND(pushq %rdi)
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#define POPAD ASM_COMMAND(popq %rdi) \
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ASM_COMMAND(popq %rsi) \
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ASM_COMMAND(popq %rbp) \
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ASM_COMMAND(popq %rsp) \
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ASM_COMMAND(popq %rbx) \
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ASM_COMMAND(popq %rdx) \
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ASM_COMMAND(popq %rcx) \
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ASM_COMMAND(popq %rax)
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#else
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#define PUSHAD ASM_COMMAND(pushal)
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#define POPAD ASM_COMMAND(popal)
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#endif
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#ifdef __ELF__
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#define ASM_CALL(func) ASM_COMMAND(call func)
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#else
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#define ASM_CALL(func) ASM_COMMAND(call _ ## func)
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#endif
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#define asm_call(func) __asm__ __volatile__ ( \
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PUSHAD \
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ASM_CALL(func) \
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POPAD \
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);
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#else //MSVC
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#define asm_call(func) { _asm pushad \
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_asm call func \
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_asm popad };
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#endif
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////////////////////////////////////////////////////////
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#endif
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