diff options
author | PikalaxALT <pikalaxalt@gmail.com> | 2017-12-15 09:38:53 -0500 |
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committer | PikalaxALT <pikalaxalt@gmail.com> | 2017-12-15 09:39:34 -0500 |
commit | f95a4a932476be2ba99e2fd081e8d2bc6ea12813 (patch) | |
tree | 75f67192cb2d7b7b575c94edda318e475239b63c /newlib/libc/sys/sysvi386/fpx.c | |
parent | f60aca96985e68c7d8a52eb7bc955fb80e132f73 (diff) |
Import newlib and create makefile
Diffstat (limited to 'newlib/libc/sys/sysvi386/fpx.c')
-rw-r--r-- | newlib/libc/sys/sysvi386/fpx.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/newlib/libc/sys/sysvi386/fpx.c b/newlib/libc/sys/sysvi386/fpx.c new file mode 100644 index 0000000..d55a1e3 --- /dev/null +++ b/newlib/libc/sys/sysvi386/fpx.c @@ -0,0 +1,73 @@ +#include <ieeefp.h> +#include <machine/registers.h> + + +fp_except _DEFUN(fpsetmask,(newmask), + fp_except newmask) + +{ + fp_except oldmask; + v60_tkcw_type tkcw; + + sysv60(0, 8, &tkcw); + oldmask = tkcw.fp_trap; + tkcw.fp_trap = newmask; + sysv60(0, 8, &tkcw); + return oldmask; + +} + +fp_except _DEFUN_VOID(fpgetmask) +{ + v60_tkcw_type tkcw; + sysv60(0, 8, &tkcw); + return tkcw.fp_trap; +} + + +fp_rnd _DEFUN_VOID(fpgetround) +{ + v60_tkcw_type tkcw; + sysv60(0, 8, &tkcw); + return tkcw.fp_rounding; +} + +fp_rnd _DEFUN(fpsetround,(rnd), + fp_rnd rnd) +{ + fp_rnd oldrnd; + v60_tkcw_type tkcw; + + sysv60(0, 8, &tkcw); + oldrnd = tkcw.fp_rounding; + tkcw.fp_rounding = rnd; + sysv60(0, 8, &tkcw); + return oldrnd; +} + + + + + +fp_rdi _DEFUN_VOID(fpgetroundtoi) +{ + v60_tkcw_type tkcw; + sysv60(0, 8, &tkcw); + return tkcw.integer_rounding; +} + +fp_rdi _DEFUN(fpsetroundtoi,(rnd), + fp_rdi rnd) +{ + fp_rdi oldrnd; + v60_tkcw_type tkcw; + + sysv60(0, 8, &tkcw); + oldrnd = tkcw.integer_rounding; + tkcw.integer_rounding = rnd; + sysv60(0, 8, &tkcw); + return oldrnd; +} + + + |