Datasheet

0x40 593 577 float _fsin(float angle)
Return the sine of angle. angle is in radians, and must be in the range -128 to 128
0x44 669 653 float _ftan(float angle)
Return the tangent of angle. angle is in radians, and must be in the range -128 to
128
0x48 N/A N/A deprecated
Do not use this function
0x4c 542 524 float _fexp(float v)
Return the exponential value of v, i.e. so
0x50 810 789 float _fln( float v)
Return the natural logarithm of v. If return -Infinity
Functions (and table entries) present in the V2 bootrom only
0x54 N/A 25 int _fcmp(float a, float b)
Compares two floating point numbers, returning:
•
0 if a == b
•
-1 if a < b
•
1 if a > b
0x58 N/A 667 float _fatan2(float y, float x)
Computes the arc tangent of y/x using the signs of arguments to determine the
correct quadrant
0x5c N/A 62 float _int642float(int64_t v)
Convert a signed 64-bit integer to the nearest float value, rounding to even on tie
0x60 N/A 60 float _fix642float(int64_t v, int n)
Convert a signed fixed point 64-bit integer representation to the nearest float
value, rounding to even on tie. n specifies the position of the binary point in fixed
point, so
0x64 N/A 58 float _uint642float(uint64_t v)
Convert an unsigned 64-bit integer to the nearest float value, rounding to even on
tie
0x68 N/A 57 float _ufix642float(uint64_t v, int n)
Convert an unsigned fixed point 64-bit integer representation to the nearest float
value, rounding to even on tie. n specifies the position of the binary point in fixed
point, so
0x6c N/A 54 _float2int64
Convert a float to a signed 64-bit integer, rounding towards -Infinity, and clamping
the result to lie within the range -0x8000000000000000 to 0x7FFFFFFFFFFFFFFF
RP2040 Datasheet
2.8. Bootrom 166