DI (SPC700)

Basic Info
Addressing Mode	Opcode	Length	Speed
Implied (type 2)	C0	1 byte	3 cycles

Flags Affected
N	V	P	B	H	I	Z	C
.	.	.	.	.	0	.	.

DI (Disable Interrupts) is an SPC700 instruction that clears the interrupt enable flag.

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

No other flags are affected.

Syntax

DI

The official manual has a typo where the zero flag is cleared instead.

See Also

• EI
• RETI
• BRK (SPC700)
• SEI
• CLI

External Links

• Official Super Nintendo development manual on DI: Table C-19 in Appendix C-10 of Book I
• anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L424