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v2.2.0 (RP2040)
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divider.h File Reference
pico_divider

High level APIs including combined quotient and remainder functions for 32 and 64 bit accelerated by the hardware divider. More...

`#include "pico.h"`
`#include "hardware/divider.h"`
Include dependency graph for divider.h:

Go to the source code of this file.

## Functions

int32_t | div_s32s32 (int32_t a, int32_t b)
| Integer divide of two signed 32-bit values.
static int32_t | divmod_s32s32_rem (int32_t a, int32_t b, int32_t *rem)
| Integer divide of two signed 32-bit values, with remainder.
divmod_result_t | divmod_s32s32 (int32_t a, int32_t b)
| Integer divide of two signed 32-bit values.
uint32_t | div_u32u32 (uint32_t a, uint32_t b)
| Integer divide of two unsigned 32-bit values.
static uint32_t | divmod_u32u32_rem (uint32_t a, uint32_t b, uint32_t *rem)
| Integer divide of two unsigned 32-bit values, with remainder.
divmod_result_t | divmod_u32u32 (uint32_t a, uint32_t b)
| Integer divide of two unsigned 32-bit values.
int64_t | div_s64s64 (int64_t a, int64_t b)
| Integer divide of two signed 64-bit values.
int64_t | divmod_s64s64_rem (int64_t a, int64_t b, int64_t *rem)
| Integer divide of two signed 64-bit values, with remainder.
int64_t | divmod_s64s64 (int64_t a, int64_t b)
| Integer divide of two signed 64-bit values.
uint64_t | div_u64u64 (uint64_t a, uint64_t b)
| Integer divide of two unsigned 64-bit values.
uint64_t | divmod_u64u64_rem (uint64_t a, uint64_t b, uint64_t *rem)
| Integer divide of two unsigned 64-bit values, with remainder.
uint64_t | divmod_u64u64 (uint64_t a, uint64_t b)
| Integer divide of two signed 64-bit values.
int32_t | div_s32s32_unsafe (int32_t a, int32_t b)
| Unsafe integer divide of two signed 32-bit values.
int32_t | divmod_s32s32_rem_unsafe (int32_t a, int32_t b, int32_t *rem)
| Unsafe integer divide of two signed 32-bit values, with remainder.
divmod_result_t | divmod_s32s32_unsafe (int32_t a, int32_t b)
| Unsafe integer divide of two unsigned 32-bit values.
uint32_t | div_u32u32_unsafe (uint32_t a, uint32_t b)
| Unsafe integer divide of two unsigned 32-bit values.
uint32_t | divmod_u32u32_rem_unsafe (uint32_t a, uint32_t b, uint32_t *rem)
| Unsafe integer divide of two unsigned 32-bit values, with remainder.
divmod_result_t | divmod_u32u32_unsafe (uint32_t a, uint32_t b)
| Unsafe integer divide of two unsigned 32-bit values.
int64_t | div_s64s64_unsafe (int64_t a, int64_t b)
| Unsafe integer divide of two signed 64-bit values.
int64_t | divmod_s64s64_rem_unsafe (int64_t a, int64_t b, int64_t *rem)
| Unsafe integer divide of two signed 64-bit values, with remainder.
int64_t | divmod_s64s64_unsafe (int64_t a, int64_t b)
| Unsafe integer divide of two signed 64-bit values.
uint64_t | div_u64u64_unsafe (uint64_t a, uint64_t b)
| Unsafe integer divide of two unsigned 64-bit values.
uint64_t | divmod_u64u64_rem_unsafe (uint64_t a, uint64_t b, uint64_t *rem)
| Unsafe integer divide of two unsigned 64-bit values, with remainder.
uint64_t | divmod_u64u64_unsafe (uint64_t a, uint64_t b)
| Unsafe integer divide of two signed 64-bit values.

## Detailed Description

High level APIs including combined quotient and remainder functions for 32 and 64 bit accelerated by the hardware divider.

These functions all call __aeabi_idiv0 or __aebi_ldiv0 on division by zero passing the largest applicably signed value

Functions with unsafe in their name do not save/restore divider state, so are unsafe to call from interrupts. Unsafe functions are slightly faster.