8085 Instruction Set & T-Clock Cycles
8085 Instruction Set & T-Clock Cycles Symbol Meaning A Accumulator B,C,D, E,H,L 8085 8-Bit register (internal registers) F Represents the flag register M The 16-bit memory address currently held by the register pair H and L byte An 8-bit data quantity port An 8-bit I/O port address r, rl, r2 8085 8-Bit register (One of the registers A, B, C, D, E, H, L) rp One of the following register pairs B represents the register pair Band C D represents the register pair D and E H represents the register pair Hand L PSW represents the register pair A and F SP represents the 16-bit stack pointer PC The 16-bit program counter CY Carry flag P Parity flag AC Auxiliary carry flag Z Zero flag S