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Program Counter
From SnesLab
The Program Counter (PC) keeps track of which instruction is currently executing.
On the S-SMP it is 16 bits wide. The low byte is called PCL and the high byte is called PCH.
See Also
Reference
- Eyes & Lichty page 33, https://archive.org/details/0893037893ProgrammingThe65816/page/33
- subparagraph 8.1.4 on page 3-8-4 of Book I of the official Super Nintendo development manual