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Processor Status Register

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The Processor Status Register (P) is on the 65c816 and contains several flags:

  • n
  • v
  • m
  • x
  • d
  • i
  • z
  • c

It can be pulled from the stack via PLP and RTI.

There are nine instructions that directly modify these flags, including:[3]

The only transfer instructions that do not modify these flags are TCS and TXS.

See Also

Reference

  1. Table 18.2 Eyes & Lichty, page 422: https://archive.org/details/0893037893ProgrammingThe65816/page/n448
  2. Figure 17.3, Lbid, page 377: https://archive.org/details/0893037893ProgrammingThe65816/page/n403
  3. page 262, https://archive.org/details/0893037893ProgrammingThe65816/page/n288
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