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EI (SPC700): Difference between revisions

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(no interrupt sources)
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=== External Links ===
=== External Links ===
* Official Super Nintendo development manual on EI: Table C-19 in [https://archive.org/details/SNESDevManual/book1/page/n235 Appendix C-10 of Book I]
* Official Super Nintendo development manual on EI: Table C-19 in [https://archive.org/details/SNESDevManual/book1/page/n235 Appendix C-10 of Book I]
* anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L428


[[Category:ASM]]
[[Category:ASM]]

Revision as of 22:00, 13 July 2024

Basic Info
Addressing Mode Opcode Length Speed
Implied (type 2) A0 1 byte 3 cycles
Flags Affected
N V P B H I Z C
. . . . . 1 . .

EI (Enable Interrupts) is an SPC700 instruction that sets the interrupt enable flag.

The manual has a typo where the flag which is set is in the zero flag's position instead.

As the S-SMP has no interrupt sources, EI is not very useful.

Syntax

EI

See Also

External Links