ISC Processor Components (1)
lGeneral
Registers:
Hold operands and results, and addresses for jumps in program.
lIR (Instruction Register) holds
currently executing instruction.
lIP (Instruction Pointer): Holds
address of next instruction.
lMDR (Memory Data Register) holds
data en-route to/from memory.
lMAR (Memory Address Register)
holds address of memory location for data.