Epok Engine

PSYQO SDK

psyqo::FixedPointInternals::dDiv

Function · 1 overload

Function

Performs `d div` as part of the fixed point module.

Belongs to
psyqo::FixedPointInternals
Header
fixed-point.hh
Overloads
1

Declaration

Declaration
constexpr int32_t dDiv(int32_t a, int32_t b, unsigned scale)

Performs `d div` as part of the fixed point module.

ParameterTypeMeaning
aint32_tValue supplied for a. Keep referenced or pointed-to data valid for the complete call.
bint32_tValue supplied for b. Keep referenced or pointed-to data valid for the complete call.
scaleunsigned intValue supplied for scale. Keep referenced or pointed-to data valid for the complete call.

Returns: int32_t. Check the value before continuing when it represents success, availability or a resource handle.

Example

C++ example
#include "psyqo/fixed-point.hh"

// Assume these named values have been initialized with valid data:
// int32_t a
// int32_t b
// unsigned int scale

auto result = psyqo::FixedPointInternals::dDiv(a, b, scale);

Why use it

It provides direct, allocation-conscious access to the fixed point module. No exception-based error path is implied by the signature.

Trade-offs and warnings

Call it only in the lifecycle phase described by the module. Validate indices, capacities and object state before use.

Declared in https://github.com/pcsx-redux/nugget/blob/6186b131aacc5853a9161fb076ed34ffe504552d/psyqo/fixed-point.hh:72

Related members

adler32Computes the adler32 checksum of a buffer.Functionadler32_bytesComputes the adler32 checksum of a buffer, only reading bytes.Functionadler32_wordsComputes the adler32 checksum of a buffer, optimized for words.Functionavsz3AVSZ3 - Average of three Z values (for Triangles) zsf3 * (sz0 + sz1 + sz2) -> otz 5 cyclesFunctionavsz4AVSZ4 - Average of four Z values (for Quads) zsf4 * (sz0 + sz1 + sz2 + sz4) -> otz 6 cyclesFunctionbtoiPerforms `btoi` as part of the msf module.FunctionccColor Color limit(([lc]·[sv]) >> 12) + [bk] -> sv [rgb·sv] -> rgb2 11 cyclesFunctionclearClear a GTE register.Function templatecubicCubic Bezier curve helper function.FunctioniDivPerforms `i div` as part of the fixed point module.Functionoperator""_fpUser-defined literal for constructing a 20.12 fixed point number.FunctionprintIntPerforms `print int` as part of the fixed point module.Function