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PHK: Difference between revisions

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'''PHK''' is a [[65c816]] instruction that pushes the value of the [[program bank register]] onto the [[stack]].
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{| class="wikitable" style="float:right;clear:right;width:30%"
!colspan="8"|Basic Info
!colspan="8"|Basic Info
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|'''Speed'''
|'''Speed'''
|+
|+
|stack
|[[Stack Addressing|Stack]] (Push)
|4B
|4B
|1 byte
|1 byte
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{| class="wikitable" style="float:right;clear:right;width:30%"
!colspan="9"|Flags Clobbered
!colspan="9"|Flags Affected
|+
|+
|N
|[[Negative Flag|N]]
|V
|[[Overflow Flag|V]]
|M
|[[M Flag|M]]
|X
|[[X Flag|X]]
|D
|[[Decimal Flag|D]]
|I
|[[I Flag|I]]
|Z
|[[Zero Flag|Z]]
|C
|[[Carry Flag|C]]
|+
|+
|.
|.
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|.
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'''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.
=== See Also ===
* [[PHB]]
* [[PHD]]
=== External Links ===
* [[Eyes & Lichty]] page 479, on PHK: https://archive.org/details/0893037893ProgrammingThe65816/page/n505
* [[Labiak]] page 163 on PHK: https://archive.org/details/Programming_the_65816/page/n173
* snes9x implementation of PHK: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1813


[[Category:ASM]]
[[Category:ASM]]
[[Category:65c816 additions]]
[[Category:Push Instructions]]
[[Category:One-byte Instructions]]
[[Category:Three-cycle Instructions]]

Revision as of 07:26, 19 December 2023

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.

See Also

External Links