Intel 8080 instructions

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The 8080 microprocessor program instructions may be one byte, two or three bytes in length. Different byte instructions have to store in successive memory 8080 had seven byte-registers: A, B, C, D, E, H, and L. A was the 8-bit accumulator for most arithmetical and logical instructions and the other six could beFlags affected are always shown in the PSW bit order: SZKAPVC. If a flag is marked by "0" it means it is reset after the instruction. If it is marked by "1" it J. This manual describes the assembly language format, and how to write assembly language programs for the Intel 8080 microprocessor. Detailed information on Multi-Byte Interrupt Instruction Capability (e.g. CALL). Direct Data and Control Bus Connect to all 8080 System. I/O and Memory Components. 8251. - Opcode, Instruction, size, flags, function. 0x00, NOP, 1. 0x01, LXI B,D16, 3, B <- byte 3, C <- byte 2. 0x02, STAX B, 1, (BC) <- A. Intel 8080 instruction set 16bit arithmetic/logical instructions All instructions marked by "*" are only alternative opcodes for existing This manual describes the assembly language format, and how to write assembly language programs for the Intel 8080 microprocessor. Detailed information on the 8080 instruction encoding: Conventions in instruction source: D = Destination register (8 bit) S = Source register (8 bit) RP = Register pair (16 bit) # = 8