ADC (SPC700)

Basic Info
Addressing Mode	Opcode	Length	Speed
immediate	88	2 bytes	2 cycles
	86	1 byte	3 cycles
Direct Page	84	2 bytes	3 cycles
Direct Page Indexed by X	94	2 bytes	3 cycles
Absolute	85	3 bytes	4 cycles
Absolute Indexed by X	95	3 bytes	5 cycles
Absolute Indexed by Y	96	3 bytes	5 cycles
	87	2 bytes	6 cycles
	97	2 bytes	6 cycles
	99	1 byte	5 cycles
	89	3 bytes	6 cycles
Direct Page Immediate	98	3 bytes	5 cycles

Flags Clobbered
N	V	P	B	H	I	Z	C
		.	.		.

ADC (Add with Carry) is an SPC700 instruction that adds the value of the two operands together (along with the carry flag) and stores the sum in the left operand. Often, the left operand is the accumulator.

See Also

• SBC (SPC700)
• ADDW
• ADC

External Links

• Official Super Nintendo development manual on ADC: Appendix C-5 of Book I