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XCE: Difference between revisions
From SnesLab
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=== External Links === | |||
* [[Eyes & Lichty]] page on XCE: https://archive.org/details/0893037893ProgrammingThe65816/page/n551 | |||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:65c816 additions]] | [[Category:65c816 additions]] | ||
Revision as of 23:08, 15 May 2023
XCE is an instruction that exchanges the carry and emulation bits. It typically appears soon after the Reset Vector following a CLC, to switch the S-CPU into 65c816 native mode.
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| implied | FB | 1 byte | 2 cycles | ||||
| Flags Clobbered | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | E |
| . | . | . | . | . | ||||