ADC (hash)$nn

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Mnemonic:			ADC #$nn
2. Schreibweise:			{{{2. Schreibweise}}}
Opcode:			$69
Operator(en):			$nn
Byte count:			2
Command type:			Arithmetic- and logic command
Address mode:			Immediate
register flags:
Carry Flag
Negative Flag
Overflow Flag
Zero Flag
Cycles:			2

The ADC (#)$nn instruction is an assembly language command used to add a constant value to the contents of the accumulator, including the carry flag if it is set. Its addressing mode is Immediate.

If the carry flag is set, an additional 1 is added to the result. The result is stored back in the accumulator. If the result exceeds 255 ($FF), the carry flag is set to indicate an overflow. When the decimal flag is set, the addition is performed in Binary-Coded Decimal (BCD) mode.

ADC #Operand

Function flow

Explanation of the mnemonic shortcut

ADC	ADd with Carry
	Add accumulator with operator and carry flag

Example

Look at ADC $hhll.

See also

• ADC
• ADC $hhll
• ADC $hhll, X

Links

• Disk image of a program example