Rabbit 2000 Instruction & Reference Manual

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Rabbit 2000 Instruction & Reference Manual Manual pdf 74 page image

70 Rabbit 2000/3000 MicroprocessorDescriptionLoads the low-order byte of the dd (any of BC, DE, HL or SP) with the data at memory address mn. Thenloads the high-order byte of register dd with data at memory address mn plus 1.LD dd,(mn)Opcode Instruction Clocks Operation——ED 4B n mED 5B n mED 6B n mED 7B n mLD dd,(mn)LD BC,(mn)LD DE,(mn)LD HL,(mn)LD SP,(mn)13 (2,2,2,2,1,2,2)13 (2,2,2,2,1,2,2)13 (2,2,2,2,1,2,2)13 (2,2,2,2,1,2,2)13 (2,2,2,2,1,2,2)dd(low) = (mn);dd(high) = (mn + 1)C = (mn); B = (mn + 1)E = (mn); D = (mn + 1)L = (mn); H = (mn + 1)SP(low)=(mn); SP(high)=(mn+1)Flags ALTD I/OS Z L/V C F R SP S D- - - - • •