SETMAP instruction question

ozpropdev

Hi All.
In the multi-tasking example in the unofficial docs the following is shown


setmap #%1_010_010 'remap registers by task, 4 sets, 4 registers each

Does this mean that sets are limited to 8 registers?
As you only can have 4 tasks, the middle bit pattern seems to represent 8 sets as well?l?

Cheers

cgracey

Those two 3-bit sub-fields can be %000..%111 to represent 1/2/4/8/16/32/64/128 sets or registers. For task-switched remapping, it makes sense to have 4 sets (bits 5..3 = %010), but the set size (number of registers in a set, selected by bits 2..0) can be any power of 2 you'd like, up to 128.

ozpropdev

Thanks Chip for clearing that up!
Regards