| #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. */ |
| |
| #define AXP_UNPACK_RAW_Q(X, val) \ |
| do { \ |
| union _FP_UNION_Q _flo; \ |
| _flo.longs.a = val##l; \ |
| _flo.longs.b = val##h; \ |
| FP_UNPACK_RAW_QP(X, &_flo); \ |
| } while (0) |
| |
| #define AXP_UNPACK_SEMIRAW_Q(X, val) \ |
| do { \ |
| union _FP_UNION_Q _flo; \ |
| _flo.longs.a = val##l; \ |
| _flo.longs.b = val##h; \ |
| FP_UNPACK_SEMIRAW_QP(X, &_flo); \ |
| } while (0) |
| |
| #define AXP_UNPACK_Q(X, val) \ |
| do { \ |
| AXP_UNPACK_RAW_Q(X, val); \ |
| _FP_UNPACK_CANONICAL(Q, 2, X); \ |
| } while (0) |
| |
| #define AXP_PACK_RAW_Q(val, X) FP_PACK_RAW_QP(&val##_flo, X) |
| |
| #define AXP_PACK_SEMIRAW_Q(val, X) \ |
| do { \ |
| _FP_PACK_SEMIRAW(Q, 2, X); \ |
| AXP_PACK_RAW_Q(val, X); \ |
| } while (0) |
| |
| #define AXP_PACK_Q(val, X) \ |
| do { \ |
| _FP_PACK_CANONICAL(Q, 2, X); \ |
| AXP_PACK_RAW_Q(val, X); \ |
| } while (0) |
| |
| #define AXP_DECL_RETURN_Q(X) union _FP_UNION_Q X##_flo |
| |
| /* ??? 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 AXP_RETURN_Q(X) \ |
| do { \ |
| register long r16 __asm__("16") = X##_flo.longs.a; \ |
| register long r17 __asm__("17") = X##_flo.longs.b; \ |
| asm volatile ("" : : "r"(r16), "r"(r17)); \ |
| } while (0) |
