We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS
DEX: Difference between revisions
From SnesLab
(added Leventhal page) |
(snes9x implementation) |
||
| Line 48: | Line 48: | ||
* [[Carr]] page on DEX: https://archive.org/details/6502UsersManual/page/n271 | * [[Carr]] page on DEX: https://archive.org/details/6502UsersManual/page/n271 | ||
* [[Leventhal]] page on DEX: https://archive.org/details/6502-assembly-language-programming/page/n110 | * [[Leventhal]] page on DEX: https://archive.org/details/6502-assembly-language-programming/page/n110 | ||
* snes9x implementation of DEX: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1484 | |||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:Inherited from 6502]] | [[Category:Inherited from 6502]] | ||
Revision as of 20:37, 17 May 2023
DEX is a 65x instruction that decrements the X index register by one.
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| implied | CA | 1 byte | 2 cycles | ||||
| Flags Clobbered | |||||||
|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C |
| . | . | . | . | . | . | ||
See Also
External Links
- Eyes & Lichty page on DEX: https://archive.org/details/0893037893ProgrammingThe65816/page/n478
- Labiak page on DEX: https://archive.org/details/Programming_the_65816/page/n149
- MCS6500 Manual page on DEX: https://archive.org/details/mos_microcomputers_programming_manual/page/n116
- Carr page on DEX: https://archive.org/details/6502UsersManual/page/n271
- Leventhal page on DEX: https://archive.org/details/6502-assembly-language-programming/page/n110
- snes9x implementation of DEX: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1484