Module conv 

Scaled fixed-point conversion helpers used by the generated bitfields.

Every generated numeric field exposes the physical value as an f32 (the Rust equivalent of the C float the definitions use), while the bitfield stores a raw N-bit integer. These const functions apply the divisor / multiplier from the JSON formatter spec and, for signed fields, sign-extend the stored bits.

They are referenced by the #[bits(N, from = .., into = ..)] attributes that generate_all_messages! emits, e.g. #[bits(12, from = conv::div_from_u16::<12, 10>, into = conv::div_into_u16::<12, 10>)].

• B is the field width in bits (used for masking / sign-extension only).
• ARG is the formatter argument (the divisor or multiplier).

Functions

div_from_u8

unsigned, divide: physical = raw / ARG

div_from_u16

unsigned, divide: physical = raw / ARG

div_from_u32

unsigned, divide: physical = raw / ARG

div_from_u64

unsigned, divide: physical = raw / ARG

div_into_u8

The clamped result is always within the #[bits(B)] range, so bitfield_struct’s bounds check never fires. This is why a custom try is needed

div_into_u16

The clamped result is always within the #[bits(B)] range, so bitfield_struct’s bounds check never fires. This is why a custom try is needed

div_into_u32

The clamped result is always within the #[bits(B)] range, so bitfield_struct’s bounds check never fires. This is why a custom try is needed

div_into_u64

The clamped result is always within the #[bits(B)] range, so bitfield_struct’s bounds check never fires. This is why a custom try is needed

mul_from_u8

unsigned, multiply: physical = raw * ARG

mul_from_u16

unsigned, multiply: physical = raw * ARG

mul_from_u32

unsigned, multiply: physical = raw * ARG

mul_from_u64

unsigned, multiply: physical = raw * ARG

mul_into_u8

Saturates the raw count to [0, 2^B - 1] (see $div_into).

mul_into_u16

Saturates the raw count to [0, 2^B - 1] (see $div_into).

mul_into_u32

Saturates the raw count to [0, 2^B - 1] (see $div_into).

mul_into_u64

Saturates the raw count to [0, 2^B - 1] (see $div_into).

sdiv_from_u8

signed, divide: sign-extended over B bits on read.

sdiv_from_u16

signed, divide: sign-extended over B bits on read.

sdiv_from_u32

signed, divide: sign-extended over B bits on read.

sdiv_from_u64

signed, divide: sign-extended over B bits on read.

sdiv_into_u8

Saturates the raw count to [-2^(B-1), 2^(B-1) - 1], then masks to B bits so the two’s-complement pattern fits the field.

sdiv_into_u16

Saturates the raw count to [-2^(B-1), 2^(B-1) - 1], then masks to B bits so the two’s-complement pattern fits the field.

sdiv_into_u32

Saturates the raw count to [-2^(B-1), 2^(B-1) - 1], then masks to B bits so the two’s-complement pattern fits the field.

sdiv_into_u64

Saturates the raw count to [-2^(B-1), 2^(B-1) - 1], then masks to B bits so the two’s-complement pattern fits the field.

smul_from_u8

signed, multiply: sign-extended over B bits on read.

smul_from_u16

signed, multiply: sign-extended over B bits on read.

smul_from_u32

signed, multiply: sign-extended over B bits on read.

smul_from_u64

signed, multiply: sign-extended over B bits on read.

smul_into_u8

Saturates the raw count to [-2^(B-1), 2^(B-1) - 1] (see $sdiv_into).

smul_into_u16

Saturates the raw count to [-2^(B-1), 2^(B-1) - 1] (see $sdiv_into).

smul_into_u32

Saturates the raw count to [-2^(B-1), 2^(B-1) - 1] (see $sdiv_into).

smul_into_u64

Saturates the raw count to [-2^(B-1), 2^(B-1) - 1] (see $sdiv_into).