Begin execution of whatever @c CommandDecoder currently describes, setting internal state appropriately.

@returns The underlying int, in its native form.

@returns The next two pixels to output, formulated as abcd efgh where ab and ef are two pixels of the first sprite and cd and gh are two pixels of the

! For a machine watching only the RWB line, evaluates to @c true if the operation should be treated as a read; @c false otherwise. */

Sets N and Z flags per the 8-bit value @c value.

For knowledge encapsulate below, all credit goes to the MAME team. No original research here. Per their investigation, the bytes collected for PWM o

@returns The current mode.

Group 0/1 commands. */

@returns a pointer to the included object, without flushing time.

Begins a blit operation.

Flag setters.

@returns the whole number part of the position.

These all merely channel into advance_cycles, supplying appropriate arguments */

! Attempts to allocate the given number of output samples for writing. The beginning of the most recently allocated area is used as the start of

Registers @c observer as the new clocking observer.

@returns The @c AddressingMode given the specified mode and reg, subject to potential aliasing on the '020+ as described above the @c AddressingMode e

@returns A @c DataPointer describing the 'destination' of this instruction, conventionally the first operand in Intel-syntax assembly.

! Sets the clock rate of the input audio. */

@returns The segment that should be used for data fetches if this operation accepts segment overrides.

@returns The operation to apply.

@returns The underlying SDL_Joystick.

! @returns `true` if there is no data left on the tape and the WaveType queue has been exhausted; `false` otherwise. */

Expands @c source so that b7 is the least-significant bit of the most-significant byte of the result, b6 is the least-significant bit of the next most

! @returns The current state of the interrupt line — @c true for active; @c false for inactive. */

@returns The @c DataSize used for operands of this instruction, i.e. byte, word or longword.

Updates the CRC to include @c byte.

@returns The offset provided with this instruction, if any. E.g. `MOV AX, [es:1998h]` has an offset of `1998h`.

Genus determinants for the various personalityes.