3.20 SEI

Function

Insert a 6502 SEI instrunction into the code.

Header

6502.h

Declaration

void SEI (void);

Description

The function will insert a 6502 SEI instruction into the code, so interrupts are disabled. Note that non maskable interrupts cannot be disabled.

Limits

• The function is actually a macro.
• Disabling interrupts may lead to unexpected results.

Availability

cc65

See also

BRK, CLI

Example

None.