Implement game saving and loading

[mikelcaz]

Assigned people

Developer:
Reviewer:

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Description

In order to save/load a game state, is necessary to be able to save/load the following data:

• Main memory (which contains both the code and the data)
• Registers
  • General purpose registers, from V{0} to V{e}
  • Carry / flag register V{f}
  • Stack Pointer (SP)
  • Program Counter (PC)
• Graphic memory

The API must be extended somehow to achieve all that. Note that saving a image from the graphic memory is not enough, as is expected to be loaded later. Left that kind of stuff (that could be useful for previews and snapshots) out of the Chipeit API.

Saving stuff implies a runtime behavior, but loading it doesn't as long a new Chipeit object can be instantiated...

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Related work

• Preview Implement game previews #44
• Snapshots Implement snapshots #45

[SergioLuis]

I wanted to do #39 on a separate task because #44 depends on #39, but not on this one. And we can have game previews (#44) without having to implement the grid interface (#37) first.