We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS

SEI: Difference between revisions

From SnesLab
Jump to: navigation, search
(→‎External Links: hid archive URL for Leventhal)
(No other flags are affected)
 
Line 38: Line 38:


SEI is recommened by some tutorials to be one of the first instructions run after the SNES comes out of reset so a game can boot properly without interruption.
SEI is recommened by some tutorials to be one of the first instructions run after the SNES comes out of reset so a game can boot properly without interruption.
No other flags are affected.


==== Syntax ====
==== Syntax ====

Latest revision as of 23:12, 8 August 2024

Basic Info
Addressing Mode Opcode Length Speed
Implied (type 2) 78 1 byte 2 cycles
Flags Affected
N V M X D I Z C
. . . . . 1 . .

SEI (SEt Interrupt) is a 65c816 instruction that disables maskable interrupts by setting the interrupt disable flag.

SEI is recommened by some tutorials to be one of the first instructions run after the SNES comes out of reset so a game can boot properly without interruption.

No other flags are affected.

Syntax

SEI

See Also

External Links