I noted last time that ARM is very proud of its barrel shifter. We saw it being used in the effective address calculator. Another place it makes itself known is in the calculation of constants in a single-instruction.
First, the easy case: An unsigned 8-bit immediate,

The post The ARM processor (Thumb-2), part 4: Single-instruction constants appeared first on The Old New Thing.

2021-06-03 14:00:00Z 0001-01-01 00:00:00Z https://devblogs.microsoft.com/oldnewthing/20210603-00/?p=105276