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ADC (SPC700): Difference between revisions

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(opcode 97)
(opcode 99)
Line 52: Line 52:
|6 cycles
|6 cycles
|+
|+
|
|[[Implied]] (type 1)
|99
|99
|1 byte
|1 byte

Revision as of 06:07, 24 July 2023

Basic Info
Addressing Mode Opcode Length Speed
Immediate 88 2 bytes 2 cycles
Implied (type 1) 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
Direct Page Indexed by X 87 2 bytes 6 cycles
Direct Page Indirect Indexed by Y 97 2 bytes 6 cycles
Implied (type 1) 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

External Links