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SED: Difference between revisions
From SnesLab
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* [[Eyes & Lichty]], [https://archive.org/details/0893037893ProgrammingThe65816/page/500 page 500] on SED | * [[Eyes & Lichty]], [https://archive.org/details/0893037893ProgrammingThe65816/page/500 page 500] on SED | ||
* [[Labiak]], [https://archive.org/details/Programming_the_65816/page/n191 page 181] on SED | * [[Labiak]], [https://archive.org/details/Programming_the_65816/page/n191 page 181] on SED | ||
* [[MCS6500 Manual]] | * 3.3.1 on [[MCS6500 Manual]], [https://archive.org/details/mos_microcomputers_programming_manual/page/n41 page 26] on SED | ||
* [[Carr]], [https://archive.org/details/6502UsersManual/page/n286 page 273] on SED | * [[Carr]], [https://archive.org/details/6502UsersManual/page/n286 page 273] on SED | ||
* [[Leventhal]] page 3-94 on SED: https://archive.org/details/6502-assembly-language-programming/page/n143 | * [[Leventhal]] page 3-94 on SED: https://archive.org/details/6502-assembly-language-programming/page/n143 | ||
Revision as of 02:58, 8 August 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Implied (type 2) | F8 | 1 byte | 2 cycles | ||||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | 1 | . | . | . | |
SED is a 65x instruction that sets the decimal mode flag so that ADC and SBC will operate on binary coded decimal data properly.
Syntax
SED
See Also
External Links
- Eyes & Lichty, page 500 on SED
- Labiak, page 181 on SED
- 3.3.1 on MCS6500 Manual, page 26 on SED
- Carr, page 273 on SED
- Leventhal page 3-94 on SED: https://archive.org/details/6502-assembly-language-programming/page/n143
- snes9x implementation of SED: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1434