Editing Level/The Lab

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{{Infobox level
| section             = Functions
| type                = Other
| unlocks-component1  = Bit Indexer
| unlocks-component2  = Console
| unlocks-component3  = Halt
| unlocks-component4  = Sound
| unlock-notes        = More components, see below
| scored              = No
| api-enum-id         = test_lab
| api-enum-number     = 59
}}

The Lab isn't a normal level, but rather a debugging tool. The Lab allows the player to save programs for automatic verification of functionality.

The <code>expect</code> keyword allows verifying the internal value of components. It applies starting after the execution of the next instruction. It takes two arguments, the first being the index of the linked component and the second the correct value. The value is checked after every instruction, so if the value changes again, a new <code>expect</code> line must be provided.

The <code>set_input</code> keyword allows providing custom input values, allowing testing of input related instructions.

== Unlocks ==
Opening The Lab for the first time unlocks a large number of components:
* 16, 32, and 64 bit versions of most of the math and logic components.
** Except shift and rotate which where unlocked in {{Level|Shift}}
* Various display options:
** {{Component|6x8 Dot Matrix Display}}
** {{Component|7 Segment Display}}
** {{Component|Console}}
** {{Component|Sprite Display}}
* More memory options
** {{Component|Dual Load RAM}}
** {{Component|Fast RAM}}
** {{Component|Latency RAM}}
** {{Component|ROM}}
* Utilities
** {{Component|Bit Indexer}}
** {{Component|Byte Indexer}}
** {{Component|Halt}}
** {{Component|Sound}}
* Probes
** {{Component|Memory Probe}}
** {{Component|Memory Probe (bit)}}
** {{Component|Wire Probe}}
** {{Component|Wire Probe (bit)}}

== Sandbox only components ==
"{{Level|Sandbox}} only" components can be placed and used here.
* These are technically unlocked now (were always available in Sandbox), but they show up (disabled) in the normal levels' build menu.

== Scoring ==
While this level is not scored, it does count as a level for the purposes of calculating the game completion percentage.

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