On Fri, Jan 16, 2009 at 6:17 PM, Jacob Meuser <jake...@sdf.lonestar.org> wrote:
> can someone check that this builds on !x86?
fails on macppc.
c++ -O2 -pipe -DOS_LINUX -DOSSMIDIIN -DFFTW_VERSION_3 -DASM_F2I_YES
`fltk-config --cflags` -DSNDIOAUDIOOUT -DOS_LINUX -DOSSMIDIIN
-DFFTW_VERSION_3 -DASM_F2I_YES `fltk-config --cflags` -DSNDIOAUDIOOUT
-c -o FormantFilter.o FormantFilter.C
FormantFilter.C: In member function `void FormantFilter::setpos(float)':
FormantFilter.C:93: error: unknown register name `st' in `asm'
gmake[2]: *** [FormantFilter.o] Error 1
gmake[2]: Leaving directory
`/usr/ports/mystuff/audio/zynaddsubfx/w-zynaddsubfx-2.2.1/ZynAddSubFX-2.2.1/src/DSP'
gmake[1]: *** [DSP] Error 2
gmake[1]: Leaving directory
`/usr/ports/mystuff/audio/zynaddsubfx/w-zynaddsubfx-2.2.1/ZynAddSubFX-2.2.1/src'
gmake: *** [all] Error 2
*** Error code 2
The line in question is a macro for F2I defined in globals.h
#ifdef ASM_F2I_YES
#define F2I(f,i) __asm__ __volatile__ ("fistpl %0" : "=m" (i) : "t" (f-0.4999999
9) : "st") ;
#else
#define F2I(f,i) (i)=((f>0) ? ( (int)(f) ) :( (int)(f-1.0) ));
#endif
ASM_F2I_YES gets defined in src/Makefile as -DASM_F2I_$(ASM_F2I) and
ASM_F2I is in src/Makefile.inc
#Assembler FLOAT to INT conversions
ASM_F2I=YES
#ASM_F2I=NO
I know very little about assembly (especially on powerpc) to comment
any further on this. The copy of PowerPC assembler reference manual I
have at hand offers this:
fctid FRT,FRB Floating Convert to Integer Doubleword
fctid. FRT,FRB
fctidz FRT,FRB Floating Convert to Integer Doubleword with Round toward Zero
fctidz. FRT,FRB
fctiw FRT,FRB Floating Convert to Integer Word
fctiw. FRT,FRB
fctiwz FRT,FRB Floating Convert to Integer Word with Round toward Zero
fctiwz. FRT,FRB
Does that help ... a little?
--patrick
