6809/6309 Mnemonic Lookup

You can lookup a single instruction by typing LD in the instruction field, which will show all load instructions. You can also lookup multiple instructions like LD,CMP.

You can also lookup mnemonics like LDX,LDY in the mnemonic field.

To see all instructions click the Show All link.

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Not case sensitive.

Instruction: Lookup

Mnemonic: Lookup

* = 6309		Immediate			Direct			Indexed			Extended			Inherent			Relative			Register			Memory
*	Mnemonic	Opcode	Cycles	Length	Opcode	Cycles	Length	Opcode	Cycles	Length	Opcode	Cycles	Length	Opcode	Cycles	Length	Opcode	Cycles	Length	Opcode	Cycles	Length	Opcode	Cycles	Length
	LDA	86	2	2	96	4/3	2	A6	4+	2+	B6	5/4	3

E	F	H	I	N	Z	V	C
-	-	-	-	X	X	0	-

"-" = unaffected, "X" = modified, "1" = set, "0" = cleared, "?" = undefined

Description:

Load Data into 8-Bit Accumulator [r' <- IMM8|(M)]

Documenation

These instructions load either an 8-bit immediate value or the contents of a memory byte into one of the 8-bit accumulators (A,B,E,F). The Condition Codes are affected as follows:

• N The Negative flag is set equal to the new value of bit 7 of the accumulator.
• Z The Zero flag is set if the new accumulator value is zero; cleared otherwise.
• V The Overflow flag is always cleared.

See Also: LD (16-bit), LDQ