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| author | Richard Henderson <rth@redhat.com> | 2004-03-06 20:46:23 +0000 |
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| committer | Richard Henderson <rth@redhat.com> | 2004-03-06 20:46:23 +0000 |
| commit | a598e3fc041f38d0c43be55d1664ff7ed0cf405b (patch) | |
| tree | da22cbd1cae0cff761823248c1350f7d6ec32177 /sysdeps/alpha/soft-fp/local-soft-fp.h | |
| parent | 4df8c11d26a29bc3a6116a9125cdfdca3cd517bb (diff) | |
| download | glibc-a598e3fc041f38d0c43be55d1664ff7ed0cf405b.tar.gz glibc-a598e3fc041f38d0c43be55d1664ff7ed0cf405b.tar.xz glibc-a598e3fc041f38d0c43be55d1664ff7ed0cf405b.zip | |
* soft-fp/quad.h (union _FP_UNION_Q): Add longs structure. * sysdeps/alpha/Implies: Add alpha/soft-fp. * sysdeps/alpha/soft-fp/sfp-machine.h: Rewrite for GEM interface. * sysdeps/alpha/Subdirs, sysdeps/alpha/soft-fp/Makefile, sysdeps/alpha/soft-fp/Versions, sysdeps/alpha/soft-fp/local-soft-fp.h, sysdeps/alpha/soft-fp/ots_add.c, sysdeps/alpha/soft-fp/ots_cmp.c, sysdeps/alpha/soft-fp/ots_cmpe.c, sysdeps/alpha/soft-fp/ots_cvtqux.c, sysdeps/alpha/soft-fp/ots_cvtqx.c, sysdeps/alpha/soft-fp/ots_cvttx.c, sysdeps/alpha/soft-fp/ots_cvtxq.c, sysdeps/alpha/soft-fp/ots_cvtxt.c, sysdeps/alpha/soft-fp/ots_div.c, sysdeps/alpha/soft-fp/ots_mul.c, sysdeps/alpha/soft-fp/ots_nintxq.c, sysdeps/alpha/soft-fp/ots_sub.c: New files.
2004-03-06 Richard Henderson <rth@redhat.com> * soft-fp/quad.h (union _FP_UNION_Q): Add longs structure. * sysdeps/alpha/Implies: Add alpha/soft-fp. * sysdeps/alpha/soft-fp/sfp-machine.h: Rewrite for GEM interface. * sysdeps/alpha/Subdirs, sysdeps/alpha/soft-fp/Makefile, sysdeps/alpha/soft-fp/Versions, sysdeps/alpha/soft-fp/local-soft-fp.h, sysdeps/alpha/soft-fp/ots_add.c, sysdeps/alpha/soft-fp/ots_cmp.c, sysdeps/alpha/soft-fp/ots_cmpe.c, sysdeps/alpha/soft-fp/ots_cvtqux.c, sysdeps/alpha/soft-fp/ots_cvtqx.c, sysdeps/alpha/soft-fp/ots_cvttx.c, sysdeps/alpha/soft-fp/ots_cvtxq.c, sysdeps/alpha/soft-fp/ots_cvtxt.c, sysdeps/alpha/soft-fp/ots_div.c, sysdeps/alpha/soft-fp/ots_mul.c, sysdeps/alpha/soft-fp/ots_nintxq.c, sysdeps/alpha/soft-fp/ots_sub.c: New files.
Diffstat (limited to 'sysdeps/alpha/soft-fp/local-soft-fp.h')
| -rw-r--r-- | sysdeps/alpha/soft-fp/local-soft-fp.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/sysdeps/alpha/soft-fp/local-soft-fp.h b/sysdeps/alpha/soft-fp/local-soft-fp.h new file mode 100644 index 0000000000..e93a2ad064 --- /dev/null +++ b/sysdeps/alpha/soft-fp/local-soft-fp.h @@ -0,0 +1,44 @@ +#include <stdlib.h> +#include <soft-fp.h> +#include <quad.h> + +/* Helpers for the Ots functions which receive long double arguments + in two integer registers, and return values in $16+$17. */ + +#undef _FP_UNPACK_RAW_2 +#define _FP_UNPACK_RAW_2(fs, X, val) \ + do { \ + union _FP_UNION_##fs _flo; \ + _flo.longs.a = val##l; \ + _flo.longs.b = val##h; \ + X##_f0 = _flo.bits.frac0; \ + X##_f1 = _flo.bits.frac1; \ + X##_e = _flo.bits.exp; \ + X##_s = _flo.bits.sign; \ + } while (0) + +#undef _FP_PACK_RAW_2 +#define _FP_PACK_RAW_2(fs, val, X) \ + do { \ + union _FP_UNION_##fs _flo; \ + _flo.bits.frac0 = X##_f0; \ + _flo.bits.frac1 = X##_f1; \ + _flo.bits.exp = X##_e; \ + _flo.bits.sign = X##_s; \ + val##l = _flo.longs.a; \ + val##h = _flo.longs.b; \ + } while (0) + +#define FP_DECL_RETURN(X) \ + long X##l, X##h + +/* ??? We don't have a real way to tell the compiler that we're wanting + to return values in $16+$17. Instead use a volatile asm to make sure + that the values are live, and just hope that nothing kills the values + in between here and the end of the function. */ +#define FP_RETURN(X) \ +do { \ + register long r16 __asm__("16") = X##l; \ + register long r17 __asm__("17") = X##h; \ + asm volatile ("" : : "r"(r16), "r"(r17)); \ +} while (0) |