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PHK

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Basic Info
Addressing Mode Opcode Length Speed
Stack (Push) 4B 1 byte 3 cycles
Flags Affected
N V M X D I Z C
. . . . . . . .

PHK (Push Program BanK) is a 65c816 instruction that pushes the value of the program bank register onto the stack. PHK always pushes a single byte. The stack pointer is decremented by one.

No flags are affected.

Syntax

PHK

Its PLK counterpart does not exist. PHK works even in emulation mode even though all bank addresses are forced to be zero.[5]

See Also

External Links

  1. Eyes & Lichty, page 479 on PHK
  2. Labiak, page 163 on PHK
  3. snes9x implementation of PHK: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1813
  4. Clark, Bruce. http://www.6502.org/tutorials/65c816opcodes.html#6.8.3
  5. section 7.8.2 of 65c816 datasheet