University of Florida EEL 3701 Drs. Gugel and Schwartz Department of Electrical & Computer EngineeringRevision 010-Nov-10 Page 1/6 G-CPU Controller Flow Charts000000 IR_LD Instruction Fetch000001 INC_PC Instruction Decode/ExecutionIR[5..0] Instructions Listed on Next Pages… Special Notes: 1.MSA[1..0] & MSB[1..0] are set to protect registers A & B when these registers are not in use. 2.R_/W is always set H (read cycle) unless otherwise specified in the ASM chart. 3.ADDR_SEL is always set to connect the PC to the Address Bus (i.e. ADDR_SEL = 00) unless otherwise specified in the ASM.
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