{SY}{SS}{JP}{SAT}{REPEAT}{UL}{NAME} {DST_HALF}{DST}, {SRC}
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Destination register is opposite precision as source, ie.
if {FULL} is true then destination is half precision, and
visa versa.
xxxxx
Full precision source registers
100
000000
000001
000010
000011
000100
000101
000110
001001
001010
001011