MOVW (SPC700)

Basic Info
Direction	Addressing Mode	Opcode	Length	Speed
to YA	Direct Page	BA	2 bytes	5 cycles
from YA	Direct Page	DA	2 bytes	4 cycles

Flags Affected
Direction	N	V	P	B	H	I	Z	C
to YA		.	.	.	.	.
from YA	.	.	.	.	.	.	.	.

MOVW (Move Word) is an SPC700 instruction that moves a 16-bit direct page value to or from the YA register. There are no variations of MOVW that do not operate on YA.

Example

From the IPL ROM,

MOVW YA, $F6	; load the byte at direct page location $F6 into A and the byte at direct page location $F7 into Y
MOVW $00, YA	; store the value in Y to direct page location $01 and the value in A to direct page location $00

See Also

• MOV
• MOV1
• ADDW
• SUBW
• CMPW

External Links

• Official Super Nintendo development manual on MOVW: Appendix C-8 of Book I