This was done to save memory and so that games could squeeze every last amount of power from the custom chips.
When stack-based procedure calls were first introduced, an important motivation was to save precious memory.
If it is desired to save memory, the storage can be reduced to one array plus 3 line buffers.
It saves memory which can be used to better purpose.
One reason palette swaps are used is to save memory.
However, this method saves computer memory because it does not use an event list.
To save memory, 32 or even 16 color modes were commonly used.
Leave most of the data on disk to save memory.
Over time, unused representations are unloaded to save memory.
It used color look up tables to save memory.