diff options
Diffstat (limited to 'shared-module/random')
| -rw-r--r-- | shared-module/random/__init__.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/shared-module/random/__init__.c b/shared-module/random/__init__.c index 42499bc0a..95ac3bc65 100644 --- a/shared-module/random/__init__.c +++ b/shared-module/random/__init__.c @@ -40,20 +40,19 @@ STATIC uint32_t yasmarang_pad = 0xeda4baba, yasmarang_n = 69, yasmarang_d = 233; STATIC uint8_t yasmarang_dat = 0; -STATIC uint32_t yasmarang(void) -{ +STATIC uint32_t yasmarang(void) { if (yasmarang_pad == 0xeda4baba) { if (!common_hal_os_urandom((uint8_t *)&yasmarang_pad, sizeof(uint32_t))) { yasmarang_pad = common_hal_time_monotonic_ms() & 0xffffffff; } } - yasmarang_pad += yasmarang_dat + yasmarang_d * yasmarang_n; - yasmarang_pad = (yasmarang_pad<<3) + (yasmarang_pad>>29); - yasmarang_n = yasmarang_pad | 2; - yasmarang_d ^= (yasmarang_pad<<31) + (yasmarang_pad>>1); - yasmarang_dat ^= (char) yasmarang_pad ^ (yasmarang_d>>8) ^ 1; + yasmarang_pad += yasmarang_dat + yasmarang_d * yasmarang_n; + yasmarang_pad = (yasmarang_pad << 3) + (yasmarang_pad >> 29); + yasmarang_n = yasmarang_pad | 2; + yasmarang_d ^= (yasmarang_pad << 31) + (yasmarang_pad >> 1); + yasmarang_dat ^= (char)yasmarang_pad ^ (yasmarang_d >> 8) ^ 1; - return (yasmarang_pad^(yasmarang_d<<5)^(yasmarang_pad>>18)^(yasmarang_dat<<1)); + return yasmarang_pad ^ (yasmarang_d << 5) ^ (yasmarang_pad >> 18) ^ (yasmarang_dat << 1); } /* yasmarang */ // End of Yasmarang @@ -106,9 +105,11 @@ STATIC mp_float_t yasmarang_float(void) { union { mp_float_t f; #if MP_ENDIANNESS_LITTLE - struct { mp_float_int_t frc:MP_FLOAT_FRAC_BITS, exp:MP_FLOAT_EXP_BITS, sgn:1; } p; + struct { mp_float_int_t frc : MP_FLOAT_FRAC_BITS, exp : MP_FLOAT_EXP_BITS, sgn : 1; + } p; #else - struct { mp_float_int_t sgn:1, exp:MP_FLOAT_EXP_BITS, frc:MP_FLOAT_FRAC_BITS; } p; + struct { mp_float_int_t sgn : 1, exp : MP_FLOAT_EXP_BITS, frc : MP_FLOAT_FRAC_BITS; + } p; #endif } u; u.p.sgn = 0; |