1 #define _FP_W_TYPE_SIZE 32 2 #define _FP_W_TYPE unsigned long 3 #define _FP_WS_TYPE signed long 4 #define _FP_I_TYPE long 5 6 #define _FP_MUL_MEAT_S(R,X,Y) \ 7 _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm) 8 #define _FP_MUL_MEAT_D(R,X,Y) \ 9 _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) 10 #define _FP_MUL_MEAT_Q(R,X,Y) \ 11 _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) 12 13 #define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_loop(S,R,X,Y) 14 #define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) 15 #define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y) 16 17 #define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) 18 #define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1 19 #define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1 20 #define _FP_NANSIGN_S 0 21 #define _FP_NANSIGN_D 0 22 #define _FP_NANSIGN_Q 0 23 24 #define _FP_KEEPNANFRACP 1 25 #define _FP_QNANNEGATEDP 0 26 27 /* Someone please check this. */ 28 #define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ 29 do { \ 30 if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \ 31 && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \ 32 { \ 33 R##_s = Y##_s; \ 34 _FP_FRAC_COPY_##wc(R,Y); \ 35 } \ 36 else \ 37 { \ 38 R##_s = X##_s; \ 39 _FP_FRAC_COPY_##wc(R,X); \ 40 } \ 41 R##_c = FP_CLS_NAN; \ 42 } while (0) 43 44 #define _FP_TININESS_AFTER_ROUNDING 0 45 46 #if defined __NO_FPRS__ && !defined _SOFT_FLOAT 47 48 /* Exception flags. We use the bit positions of the appropriate bits 49 in the FPEFSCR. */ 50 51 # include <fenv_libc.h> 52 # include <sysdep.h> 53 # include <sys/prctl.h> 54 55 int __feraiseexcept_soft (int); 56 libc_hidden_proto (__feraiseexcept_soft) 57 58 # define FP_EX_INEXACT SPEFSCR_FINXS 59 # define FP_EX_INVALID SPEFSCR_FINVS 60 # define FP_EX_DIVZERO SPEFSCR_FDBZS 61 # define FP_EX_UNDERFLOW SPEFSCR_FUNFS 62 # define FP_EX_OVERFLOW SPEFSCR_FOVFS 63 64 # define _FP_DECL_EX \ 65 int _spefscr __attribute__ ((unused)), _ftrapex __attribute__ ((unused)) = 0 66 # define FP_INIT_ROUNDMODE \ 67 do \ 68 { \ 69 int _r; \ 70 \ 71 _spefscr = fegetenv_register (); \ 72 _r = INTERNAL_SYSCALL_CALL (prctl, PR_GET_FPEXC, &_ftrapex); \ 73 if (INTERNAL_SYSCALL_ERROR_P (_r)) \ 74 _ftrapex = 0; \ 75 } \ 76 while (0) 77 # define FP_INIT_EXCEPTIONS /* Empty. */ 78 79 # define FP_HANDLE_EXCEPTIONS __feraiseexcept_soft (_fex) 80 # define FP_ROUNDMODE (_spefscr & 0x3) 81 82 /* Not correct in general, but sufficient for the uses in soft-fp. */ 83 # define FP_TRAPPING_EXCEPTIONS (_ftrapex & PR_FP_EXC_UND \ 84 ? FP_EX_UNDERFLOW \ 85 : 0) 86 87 #else 88 89 /* Exception flags. We use the bit positions of the appropriate bits 90 in the FPSCR, which also correspond to the FE_* bits. This makes 91 everything easier ;-). */ 92 # define FP_EX_INVALID (1 << (31 - 2)) 93 # define FP_EX_OVERFLOW (1 << (31 - 3)) 94 # define FP_EX_UNDERFLOW (1 << (31 - 4)) 95 # define FP_EX_DIVZERO (1 << (31 - 5)) 96 # define FP_EX_INEXACT (1 << (31 - 6)) 97 98 # define FP_HANDLE_EXCEPTIONS __simulate_exceptions (_fex) 99 # define FP_ROUNDMODE __sim_round_mode_thread 100 # define FP_TRAPPING_EXCEPTIONS \ 101 (~__sim_disabled_exceptions_thread & 0x3e000000) 102 103 #endif 104 105 extern __thread int __sim_exceptions_thread attribute_tls_model_ie; 106 libc_hidden_tls_proto (__sim_exceptions_thread, tls_model ("initial-exec")); 107 extern __thread int __sim_disabled_exceptions_thread attribute_tls_model_ie; 108 libc_hidden_tls_proto (__sim_disabled_exceptions_thread, 109 tls_model ("initial-exec")); 110 extern __thread int __sim_round_mode_thread attribute_tls_model_ie; 111 libc_hidden_tls_proto (__sim_round_mode_thread, tls_model ("initial-exec")); 112 113 extern void __simulate_exceptions (int x) attribute_hidden; 114