mirror of
https://github.com/reactos/reactos.git
synced 2024-07-08 13:45:06 +00:00
bd0a28d1e4
MSVC was previously given a "result" variable to copy the fscale result from st(0). This led to another "fld" FPU stack push at the very end without popping the source value from the FPU stack. Moreover, this copy isn't even needed: A simple "fstp st(1)" at the end pops an element from the FPU stack while effectively storing the result in st(0), the register used for returning a double value. This problem didn't affect GCC, as it is only given the "fscale" instruction and does all necessary stack operations itself. However, looking into the CRT sources, I found many other i386 implementations with inline assembly suffering from the same problem. Fortunately, they have been replaced by pure assembly implementations a while ago, so it's time to finally remove them. ldexp would have also been a candidate for a pure assembly implementation, but the required check for NaN and setting errno (verified on Win2003) already outweighs the benefits. And we cannot just do a NaN check with FUCOMI as this is an i686/pentiumpro instruction while we're still targeting i586/pentium. I'm also using this opportunity to clean up the ldexp.c header and only put in the remaining contributors as returned by "git blame". Thanks to NightWolve1975 for reporting the problem! (https://twitter.com/nightwolve1975/status/1099042477531643912)
252 lines
6.4 KiB
CMake
252 lines
6.4 KiB
CMake
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list(APPEND LIBCNTPR_SOURCE
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float/isnan.c
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math/abs.c
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math/div.c
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math/labs.c
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math/rand_nt.c
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mbstring/mbstrlen.c
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mem/memccpy.c
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mem/memcmp.c
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mem/memicmp.c
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misc/fltused.c
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printf/_snprintf.c
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printf/_snwprintf.c
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printf/_vcprintf.c
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printf/_vscwprintf.c
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printf/_vsnprintf.c
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printf/_vsnwprintf.c
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printf/sprintf.c
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printf/streamout.c
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printf/swprintf.c
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printf/vprintf.c
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printf/vsprintf.c
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printf/vswprintf.c
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printf/wstreamout.c
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search/bsearch.c
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search/lfind.c
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stdlib/qsort.c
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string/_splitpath.c
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string/_wsplitpath.c
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string/ctype.c
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string/iswctype.c
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string/is_wctype.c
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string/scanf.c
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string/strcspn.c
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string/stricmp.c
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string/strnicmp.c
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string/strlwr.c
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string/strrev.c
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string/strset.c
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string/strstr.c
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string/strupr.c
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string/strpbrk.c
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string/strspn.c
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string/atoi64.c
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string/atoi.c
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string/atol.c
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string/itoa.c
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string/itow.c
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string/mbstowcs_nt.c
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string/strtoi64.c
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string/strtol.c
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string/strtoul.c
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string/strtoull.c
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string/wcs.c
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string/wcstol.c
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string/wcstombs_nt.c
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string/wcstoul.c
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string/wctype.c
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string/wtoi64.c
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string/wtoi.c
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string/wtol.c
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string/winesup.c
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wstring/wcsicmp.c
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wstring/wcslwr.c
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wstring/wcsnicmp.c
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wstring/wcsupr.c
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wstring/wcscspn.c
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wstring/wcsspn.c
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wstring/wcsstr.c)
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if(ARCH STREQUAL "i386")
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list(APPEND LIBCNTPR_ASM_SOURCE
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except/i386/chkstk_asm.s
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setjmp/i386/setjmp.s
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math/i386/alldiv_asm.s
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math/i386/alldvrm_asm.s
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math/i386/allmul_asm.s
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math/i386/allrem_asm.s
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math/i386/allshl_asm.s
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math/i386/allshr_asm.s
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math/i386/atan_asm.s
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math/i386/atan2_asm.s
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math/i386/aulldiv_asm.s
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math/i386/aulldvrm_asm.s
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math/i386/aullrem_asm.s
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math/i386/aullshr_asm.s
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math/i386/ceil_asm.s
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math/i386/cos_asm.s
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math/i386/fabs_asm.s
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math/i386/floor_asm.s
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math/i386/ftol_asm.s
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math/i386/ftol2_asm.s
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math/i386/log_asm.s
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math/i386/log10_asm.s
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math/i386/pow_asm.s
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math/i386/sin_asm.s
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math/i386/sqrt_asm.s
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math/i386/tan_asm.s
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misc/i386/readcr4.S)
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list(APPEND LIBCNTPR_SOURCE
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math/i386/ci.c
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math/i386/cicos.c
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math/i386/cilog.c
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math/i386/cipow.c
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math/i386/cisin.c
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math/i386/cisqrt.c
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math/i386/ldexp.c)
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if(NOT MSVC)
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list(APPEND LIBCNTPR_SOURCE except/i386/chkstk_ms.s)
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endif()
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elseif(ARCH STREQUAL "amd64")
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list(APPEND LIBCNTPR_ASM_SOURCE
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except/amd64/chkstk_asm.s
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except/amd64/seh.s
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setjmp/amd64/setjmp.s
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math/amd64/atan.S
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math/amd64/atan2.S
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math/amd64/ceil.S
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math/amd64/exp.S
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math/amd64/fabs.S
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math/amd64/floor.S
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math/amd64/floorf.S
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math/amd64/fmod.S
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math/amd64/ldexp.S
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math/amd64/log.S
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math/amd64/log10.S
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math/amd64/pow.S
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math/amd64/sqrt.S
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math/amd64/tan.S)
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list(APPEND LIBCNTPR_SOURCE
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except/amd64/ehandler.c
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math/cos.c
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math/sin.c)
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elseif(ARCH STREQUAL "arm")
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list(APPEND LIBCNTPR_SOURCE
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except/arm/chkstk_asm.s
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except/arm/__jump_unwind.s
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math/arm/__rt_sdiv.c
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math/arm/__rt_sdiv64_worker.c
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math/arm/__rt_udiv.c
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math/arm/__rt_udiv64_worker.c
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)
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list(APPEND LIBCNTPR_ASM_SOURCE
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except/arm/_abnormal_termination.s
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except/arm/_except_handler2.s
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except/arm/_except_handler3.s
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except/arm/_global_unwind2.s
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except/arm/_local_unwind2.s
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except/arm/chkstk_asm.s
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except/arm/ehandler.c
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float/arm/_clearfp.s
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float/arm/_controlfp.s
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float/arm/_fpreset.s
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float/arm/_statusfp.s
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math/arm/atan.s
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math/arm/atan2.s
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math/arm/ceil.s
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math/arm/exp.s
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math/arm/fabs.s
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math/arm/fmod.s
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math/arm/floor.s
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math/arm/ldexp.s
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math/arm/log.s
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math/arm/log10.s
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math/arm/pow.s
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math/arm/tan.s
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math/arm/__dtoi64.s
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math/arm/__dtou64.s
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math/arm/__i64tod.s
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math/arm/__i64tos.s
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math/arm/__stoi64.s
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math/arm/__stou64.s
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math/arm/__u64tod.s
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math/arm/__u64tos.s
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math/arm/__rt_sdiv64.s
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math/arm/__rt_srsh.s
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math/arm/__rt_udiv64.s
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setjmp/arm/setjmp.s
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)
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endif()
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if(ARCH STREQUAL "i386")
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list(APPEND LIBCNTPR_ASM_SOURCE
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mem/i386/memchr_asm.s
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mem/i386/memmove_asm.s
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mem/i386/memset_asm.s
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string/i386/strcat_asm.s
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string/i386/strchr_asm.s
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string/i386/strcmp_asm.s
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string/i386/strcpy_asm.s
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string/i386/strlen_asm.s
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string/i386/strncat_asm.s
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string/i386/strncmp_asm.s
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string/i386/strncpy_asm.s
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string/i386/strnlen_asm.s
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string/i386/strrchr_asm.s
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string/i386/wcscat_asm.s
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string/i386/wcschr_asm.s
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string/i386/wcscmp_asm.s
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string/i386/wcscpy_asm.s
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string/i386/wcslen_asm.s
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string/i386/wcsncat_asm.s
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string/i386/wcsncmp_asm.s
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string/i386/wcsncpy_asm.s
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string/i386/wcsnlen_asm.s
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string/i386/wcsrchr_asm.s)
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else()
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list(APPEND LIBCNTPR_SOURCE
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math/cos.c
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math/sin.c
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math/sqrt.c
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mem/memchr.c
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mem/memcpy.c
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mem/memmove.c
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mem/memset.c
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string/strcat.c
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string/strchr.c
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string/strcmp.c
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string/strcpy.c
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string/strlen.c
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string/strncat.c
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string/strncmp.c
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string/strncpy.c
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string/strnlen.c
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string/strrchr.c
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string/wcscat.c
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string/wcschr.c
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string/wcscmp.c
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string/wcscpy.c
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string/wcslen.c
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string/wcsncat.c
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string/wcsncmp.c
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string/wcsncpy.c
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string/wcsnlen.c
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string/wcsrchr.c)
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endif()
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set_source_files_properties(${LIBCNTPR_ASM_SOURCE} PROPERTIES COMPILE_DEFINITIONS "NO_RTL_INLINES;_NTSYSTEM_;_NTDLLBUILD_;_LIBCNT_;__CRT__NO_INLINE;CRTDLL")
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add_asm_files(libcntpr_asm ${LIBCNTPR_ASM_SOURCE})
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add_library(libcntpr ${LIBCNTPR_SOURCE} ${libcntpr_asm})
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add_target_compile_definitions(libcntpr
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NO_RTL_INLINES
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_NTSYSTEM_
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_NTDLLBUILD_
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_LIBCNT_
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__CRT__NO_INLINE
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CRTDLL)
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add_dependencies(libcntpr psdk asm)
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