sfp-machine.h
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:2k
- #define _FP_W_TYPE_SIZE 64
- #define _FP_W_TYPE unsigned long
- #define _FP_WS_TYPE signed long
- #define _FP_I_TYPE long
- #define _FP_MUL_MEAT_S(R,X,Y)
- _FP_MUL_MEAT_1_imm(_FP_WFRACBITS_S,R,X,Y)
- #define _FP_MUL_MEAT_D(R,X,Y)
- _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
- #define _FP_MUL_MEAT_Q(R,X,Y)
- _FP_MUL_MEAT_2_wide_3mul(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
- #define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm)
- #define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_1_udiv_norm(D,R,X,Y)
- #define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y)
- #define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1)
- #define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1)
- #define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1
- #define _FP_NANSIGN_S 0
- #define _FP_NANSIGN_D 0
- #define _FP_NANSIGN_Q 0
- #define _FP_KEEPNANFRACP 1
- /* From my experiments it seems X is chosen unless one of the
- NaNs is sNaN, in which case the result is NANSIGN/NANFRAC. */
- #define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)
- do {
- if ((_FP_FRAC_HIGH_RAW_##fs(X) |
- _FP_FRAC_HIGH_RAW_##fs(Y)) & _FP_QNANBIT_##fs)
- {
- R##_s = _FP_NANSIGN_##fs;
- _FP_FRAC_SET_##wc(R,_FP_NANFRAC_##fs);
- }
- else
- {
- R##_s = X##_s;
- _FP_FRAC_COPY_##wc(R,X);
- }
- R##_c = FP_CLS_NAN;
- } while (0)
- #define FP_EX_INVALID (1 << 4)
- #define FP_EX_DIVZERO (1 << 3)
- #define FP_EX_OVERFLOW (1 << 2)
- #define FP_EX_UNDERFLOW (1 << 1)
- #define FP_EX_INEXACT (1 << 0)