5.5.2. ARM and Thumb code

Bit [0] of the address indicates whether the destination of the branch is ARM code (bit [0] LOW) or Thumb code (bit [0] HIGH).

Bit [1] of the address is traced as zero for ARM instruction accesses, regardless of the alignment of the instruction address. The decompressor must ignore bit [1] of the address for ARM instruction accesses. This bit of the address is reserved for future expansion.

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