Samsung KS57C2308 manual Examples Instruction Operation Description and Guidelines

KS57C2308/P2308/C2316/P2316 SAM47 INSTRUCTION SET

LD — Load

LD	(Concluded)
Examples:	Instruction		Operation Description and Guidelines
	LD	EA,@HL	Load data memory contents pointed to by 8-bit register HL to the A register,
			and the contents of HL+1 to the E register. The contents of register L must
			be an even number. If the number is odd, the LSB of register L is
			recognized as a logic zero (an even number), and it is not replaced with the
			true value. For example, “LD HL,#36H” loads immediate 36H to HL and the
			next instruction “LD EA,@HL” loads the contents of 36H to register A and
			the contents of 37H to register E.
	LD	EA,DA	Load direct data memory contents of DA to the A register, and the next
			direct data memory contents of DA + 1 to the E register. The DA value must
			be an even number. If it is an odd number, the LSB of DA is recognized as
			a logic zero (an even number), and it is not replaced with the true value. For
			example, “LD EA,37H” loads the contents of 36H to the A register and the
			contents of 37H to the E register.
	LD	EA,RRb	Load 8-bit RRb register (HL, WX, YZ) to the EA register. H, W, and Y
			register values are loaded into the E register, and the L, X, and Z values into
			the A register.
	LD	@HL,A	Load A register contents to data memory location pointed to by the 8-bit HL
			register value.
	LD	DA,EA	Load the A register contents to direct data memory and the E register
			contents to the next direct data memory location. The DA value must be an
			even number. If it is an odd number, the LSB of the DA value is recognized
			as logic zero (an even number), and is not replaced with the true value.
	LD	RRb,EA	Load contents of EA to the 8-bit RRb register (HL, WX, YZ). The E register
			is loaded into the H, W, and Y register and the A register into the L, X, and
			Z register.
	LD	@HL,EA	Load the A register to data memory location pointed to by the 8-bit HL
			register, and the E register contents to the next location, HL + 1. The
			contents of the L register must be an even number. If the number is odd, the
			LSB of the L register is recognized as logic zero (an even number), and is
			not replaced with the true value. For example, “LD HL,#36H” loads
			immediate 36H to register HL; the instruction “LD @HL,EA” loads the
			contents of A into address 36H and the contents of E into address 37H.

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