Struct z80emu::z80::BM1

pub struct BM1 { /* private fields */ }

The struct implements a Flavour that (supposedly) emulates the KP1858BM1 or T34BM1 clones of the Z80.

It differs from the NMOS implementation in the way Flavour::memptr_mix works. In this implementation the returned MSB is always 0. The Flavour::ACCEPTING_INT_RESETS_IFF2_EARLY value is false.

Trait Implementations

impl Clone for BM1

fn clone(&self) -> BM1

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BM1

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for BM1

fn default() -> BM1

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for BM1

where BM1: Default,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Flavour for BM1

const CONSTANT_OUT_DATA: u8 = 0u8

The value being actually put on the data bus while executing the undocumented instruction OUT (C),(HL).

const ACCEPTING_INT_RESETS_IFF2_EARLY: bool = false

Should be true if the IFF2 is being reset early when accepting an interrupt, while an instruction is being executed, so LD A,I or LD A,R may report modified IFF2 value.

fn tag() -> &'static str

Returns the string identifier of this flavour.

fn memptr_mix(_msb: u8, lsb: u8) -> (u8, u8)

The way MEMPTR is being updated for: LD (nnnn),A, LD (BC),A, LD (DE),A and OUT (nn),A is being controlled by this function. The current Accumulator value is being passed as msb and the lower 8-bits of the current destination address is being provided as lsb. The function should return the (MSB, LSB) value to set the MEMPTR with.

fn begin_instruction(&mut self)

This method is being called each time before an instructions is being executed or an interrupt is being accepted, including NMI. It might modify some state and is being used together with Flavour::flags_modified and Flavour::get_q to prepare a value applied to bits 3 and 5 of the Flags for the SCF/CCF instructions.

fn flags_modified(&mut self)

This method is being called each time an instructions modifies the Flags register.

fn get_q(&self, acc: u8, flags: CpuFlags) -> u8

Bits 3 and 5 of the returned value will be copied to the Flags register.

fn cpu_into_any(cpu: Z80<Self>) -> Z80Any

Converts a Z80 struct of this flavour into an Z80Any enum.

fn unwrap_cpu_any(cpu_any: Z80Any) -> Z80<Self>

Returns the contained Z80<Self> value, consuming the cpu value.

fn reset(&mut self)

Should reset the state. Called by crate::Cpu::reset. The default implementation resets the state to default.

impl From<BM1> for CMOS

This conversion is lossy. When CMOS Flavour is converted back information is lost.

fn from(_: BM1) -> Self

Converts to this type from the input type.

impl From<BM1> for NMOS

fn from(_: BM1) -> Self

Converts to this type from the input type.

impl From<CMOS> for BM1

fn from(_: CMOS) -> Self

Converts to this type from the input type.

impl From<NMOS> for BM1

fn from(_: NMOS) -> Self

Converts to this type from the input type.

impl PartialEq for BM1

fn eq(&self, other: &BM1) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for BM1

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for BM1

impl Eq for BM1

impl StructuralPartialEq for BM1