Editing Known issues/2.0.16 (section)

== Wire Spaghetti ==

[https://discord.com/channels/828292123936948244/1357728243456806984 RAM broken in Wire Spaghetti]

Various issues with RAM in Wire Spaghetti and following levels.

These stem from the lack of API in <code>text.si</code> to identify which RAM block is the program and which is the register file.

'''WORKAROUNDS''':
# Copy-paste a 16-bit RAM from sandbox for the register file, then
# Copy-paste a 32-bit RAM from sandbox for the program.
# These steps should be taken in order. This might take several attempts, for reasons that are unclear to me.

[https://discord.com/channels/828292123936948244/1357729558547398837 Wire Spaghetti level log out of date]

The level log for Wire Spaghetti states:
3. Click "Edit link components" on the program component and then "Add register file". (do not connect the zr register)

This is now wrong, zr should be linked, as part of the register file.

=== RAM is byte addressed ===

The level log does not make clear that RAM is byte addressed (this is a change from 0.1059).

Since the register file entries are 16-bits (2 bytes) wide the register address should be adjusted to match.

=== r9 should have value 65535 not 0 ===

If you see this error on tick 62, then you are writing to and reading from the zero register, this is an error in your circuit, not a bug in the game.