FIFO Outputs all HiZ in RTL Simulation

No, I am simulating the sync_fifo.v file.

It appears that all this file does is instantiate and wire up an scfifo. Could it be that this file is missing from my project? I have no idea where to find it so I can add it and compile. But if that were the case, how would sync_fifo.v compile at all?

e: Interestingly, if I remove the sync_fifo_bb.v file, I cannot start a simulation of sync_fifo.v. I get the error:

vsim work.sync_fifo -L altera_mf# vsim -L altera_mf work.sync_fifo # Loading work.sync_fifo# ** Error: (vsim-10000) Z:/Altera_Projects/video_prototype/sync_fifo.v(83): Unresolved defparam reference to 'scfifo_component' in scfifo_component.add_ram_output_register.# # Region: /sync_fifo# ** Error: (vsim-10000) Z:/Altera_Projects/video_prototype/sync_fifo.v(84): Unresolved defparam reference to 'scfifo_component' in scfifo_component.intended_device_family.# # Region: /sync_fifo# ** Error: (vsim-10000) Z:/Altera_Projects/video_prototype/sync_fifo.v(85): Unresolved defparam reference to 'scfifo_component' in scfifo_component.lpm_numwords.# # Region: /sync_fifo# ** Error: (vsim-10000) Z:/Altera_Projects/video_prototype/sync_fifo.v(86): Unresolved defparam reference to 'scfifo_component' in scfifo_component.lpm_showahead.# # Region: /sync_fifo# ** Error: (vsim-10000) Z:/Altera_Projects/video_prototype/sync_fifo.v(87): Unresolved defparam reference to 'scfifo_component' in scfifo_component.lpm_type.# # Region: /sync_fifo# ** Error: (vsim-10000) Z:/Altera_Projects/video_prototype/sync_fifo.v(88): Unresolved defparam reference to 'scfifo_component' in scfifo_component.lpm_width.# # Region: /sync_fifo# ** Error: (vsim-10000) Z:/Altera_Projects/video_prototype/sync_fifo.v(89): Unresolved defparam reference to 'scfifo_component' in scfifo_component.lpm_widthu.# # Region: /sync_fifo# ** Error: (vsim-10000) Z:/Altera_Projects/video_prototype/sync_fifo.v(90): Unresolved defparam reference to 'scfifo_component' in scfifo_component.overflow_checking.# # Region: /sync_fifo# ** Error: (vsim-10000) Z:/Altera_Projects/video_prototype/sync_fifo.v(91): Unresolved defparam reference to 'scfifo_component' in scfifo_component.underflow_checking.# # Region: /sync_fifo# ** Error: (vsim-10000) Z:/Altera_Projects/video_prototype/sync_fifo.v(92): Unresolved defparam reference to 'scfifo_component' in scfifo_component.use_eab.# # Region: /sync_fifo