momiji

m68k emulator infrastructure

About Source code

momiji::Emulator

Defined in header <momiji/Emulator.h>

struct Emulator

MISSING DESCRIPTION

Methods

(constructor)
constStates	Obtain a view of the current system states
getSettings	Obtain a copy of the current settings
getStates	Get all the current system states
loadNewSettings	Sets the new settings for the Emulator
newState	Creates a new state
reset	Resets the emulator to the initial state
rollback	Rollbacks to a previous system state
states	Obtain a span of the current system states
step	Executes the next instruction

A “System state” is a particular value in time of a momiji::System. This class simply manages a collection of Systems to allow rollback.

By default a new state is created when step() is invoked, this can be changed by tweaking EmulatorSettings::RetainStates. Creating a new state implies copying all the data from the previous System to the new one and executing the next instruction, this is unavoidable to implement non-destructive writes.

Future

In the future it may make sense to employ a persistent data structure to keep track of the states, maybe by making System COW.

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