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RTS: Difference between revisions
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{| class="wikitable" style="float:right;clear:right;width: | {| class="wikitable" style="float:right;clear:right;width:40%" | ||
!colspan="8"|Basic Info | !colspan="8"|Basic Info | ||
|+ | |+ | ||
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|'''Speed''' | |'''Speed''' | ||
|+ | |+ | ||
| | |[[Stack Addressing|Stack]] (RTS) | ||
|60 | |60 | ||
|1 byte | |1 byte | ||
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{| class="wikitable" style="float:right;clear:right;width:30%" | {| class="wikitable" style="float:right;clear:right;width:30%" | ||
!colspan="9"|Flags | !colspan="9"|Flags Affected | ||
|+ | |+ | ||
|N | |[[N Flag|N]] | ||
|V | |[[V Flag|V]] | ||
|M | |[[M Flag|M]] | ||
|X | |[[X Flag|X]] | ||
|D | |[[D Flag|D]] | ||
|I | |[[I Flag|I]] | ||
|Z | |[[Z Flag|Z]] | ||
|C | |[[C Flag|C]] | ||
|+ | |+ | ||
|. | |. | ||
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|} | |} | ||
'''RTS''' (Return from Subroutine) is a [[65c816]] instruction used to return control from a subroutine that was called from the same bank. | '''RTS''' (Return from Subroutine) is a [[65c816]] instruction used to return control from a subroutine that was called from the same [[bank]]. | ||
RTS pulls the [[return address]] from the [[stack]], but increments the value by one before loading it into the [[program counter]]. | |||
=== See Also === | === See Also === | ||
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=== External Links === | === External Links === | ||
* [[Eyes & Lichty]] page on RTS: https://archive.org/details/0893037893ProgrammingThe65816/page/n522 | * [[Eyes & Lichty]] page 496, on RTS: https://archive.org/details/0893037893ProgrammingThe65816/page/n522 | ||
* [[Labiak]] page on RTS: https://archive.org/details/Programming_the_65816/page/n188 | * [[Labiak]] page 178 on RTS: https://archive.org/details/Programming_the_65816/page/n188 | ||
* [[MCS6500 Manual]] page on RTS: https://archive.org/details/mos_microcomputers_programming_manual/page/n127 | * [[MCS6500 Manual]] page 108 on RTS: https://archive.org/details/mos_microcomputers_programming_manual/page/n127 | ||
* [[Carr]] page on RTS: https://archive.org/details/6502UsersManual/page/n284 | * [[Carr]] page 271 on RTS: https://archive.org/details/6502UsersManual/page/n284 | ||
* [[Leventhal]] page on RTS: https://archive.org/details/6502-assembly-language-programming/page/n139 | * [[Leventhal]] page 3-90 on RTS: https://archive.org/details/6502-assembly-language-programming/page/n139 | ||
* snes9x implementation of RTS: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L2982 | * snes9x implementation of RTS: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L2982 | ||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:Inherited from 6502]] | [[Category:Inherited from 6502]] | ||
[[Category:Unconditional Branches]] | |||
[[Category:One-byte Instructions]] | |||
[[Category:Single Admode Mnemonics]] | |||
Latest revision as of 10:07, 18 December 2023
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Stack (RTS) | 60 | 1 byte | 6 cycles | ||||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | . | . | . | . | |
RTS (Return from Subroutine) is a 65c816 instruction used to return control from a subroutine that was called from the same bank.
RTS pulls the return address from the stack, but increments the value by one before loading it into the program counter.
See Also
External Links
- Eyes & Lichty page 496, on RTS: https://archive.org/details/0893037893ProgrammingThe65816/page/n522
- Labiak page 178 on RTS: https://archive.org/details/Programming_the_65816/page/n188
- MCS6500 Manual page 108 on RTS: https://archive.org/details/mos_microcomputers_programming_manual/page/n127
- Carr page 271 on RTS: https://archive.org/details/6502UsersManual/page/n284
- Leventhal page 3-90 on RTS: https://archive.org/details/6502-assembly-language-programming/page/n139
- snes9x implementation of RTS: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L2982