All RTN[1] - Fetch 1-Bus 2-Bus 3-Bus Step Concrete RTN Control Sequence Ste p Concrete RTN Control Sequence Ste p Concrete RTN Control Sequence T

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Unformatted text preview: Fetch 1-Bus 2-Bus 3-Bus Step Concrete RTN Control Sequence Ste p Concrete RTN Control Sequence Ste p Concrete RTN Control Sequence T MA←PC : C←PC+4 PC out , MAin, INC4, C in T MA←PC PC out , C=B, MA in T MA←PC : MD←M[MA] : PC←PC+4 PC out , MA B in , INC4, PC in , MD rd T 1 MD←M[MA] : PC←C MD rd , C out , PC in T 1 PC←PC+4 : MD←M[MA] PC out , INC4, PC in , MD rd T 2 IR←MD MD out , IR in T 2 IR←MD MD out , C=B, IR in T 1 IR←MD MD out , C=B, IR in OPC 1: ld r a , c 2 / ld r a , c 2 (r b ) 1-Bus 2-Bus 3-Bus Step Concrete RTN Control Sequence Ste p Concrete RTN Control Sequence Ste p Concrete RTN Control Sequence T 3 (r b =0)→(A←0) (r b ≠0)→(A←R[r b ]) Gr b , BA out , A in T 3 (r b =0)→(A←0) (r b ≠0)→(A←R[r b ]) Gr b , BA out , C=B, A in T 2 (r b =0)→(MA←C 2 {Sign Ext}) (r b ≠0)→(MA←R[r b ] +C 2 {Sign Ext}):MD←M[MA] G A r b , BA A out , C 2out , ADD, MA C in , MD rd T 4 C←A+C 2 {Sign Ext} C 2out , ADD, C in T 4 MA←A+C 2 {Sign Ext} C 2out , ADD, MA in T 5 MA←C C out , MA in T 5 MD←M[MA] MD rd T 6 MD←M[MA] MD rd T 6 R[r a ]←MD MD out , C=B, Sr a , R in , End. T 3 R[r a ]←MD MD out , C=B, Sr a , R in , End. T 7 R[r a ]←MD MD out , Gr a , R in , End. OPC 2: ldr r a , c 1 1-Bus 2-Bus 3-Bus Step Concrete RTN Control Sequence Ste p Concrete RTN Control Sequence Ste p Concrete RTN Control Sequence T 3 A←PC PC out , A in T 3 A←PC PC out , C=B, A in T 2 R[r a ]←PC PC out , C=B, Sr a , R in T 4 C←A+C 1 {Sign Ext} C 1out , ADD, C in T 4 MA←A+C 1 {Sign Ext} C 1out , ADD, MA in T 3 MA←R[r a ]+ C 1 {Sign Ext} : MD←M[MA] C 1out , G A r a , Rout, ADD, MA C in , MD rd T 5 MA←C C out , MA in T 5 MD←M[MA] MD rd T 6 MD←M[MA] MD rd T 6 R[r a ]←MD MD out , C=B, Sr a , R in , End. T 4 R[r a ]←MD MD out , C=B, Sr a , R in , End. T 7 R[r a ]←MD MD out , Gr a , R in , End. OPC 3: st r a , c 2 / st r a , c 2 (r b ) 1-Bus 2-Bus 3-Bus Step Concrete RTN Control Sequence Ste p Concrete RTN Control Sequence Ste p Concrete RTN Control Sequence T 3 (r b =0)→(A←0) (r b ≠0)→(A←R[r b ]) Gr b , BA out , A in T 3 (r b =0)→(A←0) (r b ≠0)→(A←R[r b ]) Gr b , BA out , C=B, A in T 2 MD←R[r a ] G B r a , R out , C=B, MD bus T 4 C←A+C 2 {Sign Ext} C 2out , ADD, C in T 4 MA←A+C 2 {Sign Ext} C 2out , ADD, MA in T 3 (r b =0)→(MA←C 2 {Sign Ext}) (r b ≠0)→(MA←R[r b ] +C 2 {Sign Ext}):M[MA]←MD G A r b , BA A out , C 2out , ADD, MA in , MD wr , End. T 5 MA←C C out , MA in T 5 MD←R[r a ] Gr a , R out , C=B, MD bus T 6 MD←R[r a ] Gr a , R out , MD bus T 6 M[MA]←MD MD wr , End. T 7 M[MA]←MD MD wr , End. OPC 4: str r a , c 1 1-Bus 2-Bus 3-Bus Step Concrete RTN Control Sequence Ste p Concrete RTN Control Sequence Ste p Concrete RTN Control Sequence T 3 A←PC PC out , A in T 3 A←PC PC out , A in T 2 MD←R[r a ] Gr a , R out , MD bus T 4 C←A+C 1 {Sign Ext} C 1out , ADD, C in T 4 MA←A+C 1 {Sign Ext} C 1out , ADD, MA in T 3 MA←PC+C 1 {Sign Ext} : C 1out , ADD, MA...
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This note was uploaded on 11/25/2010 for the course ECE 525.412 taught by Professor Charlesb.cameron during the Spring '10 term at Johns Hopkins.

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All RTN[1] - Fetch 1-Bus 2-Bus 3-Bus Step Concrete RTN Control Sequence Ste p Concrete RTN Control Sequence Ste p Concrete RTN Control Sequence T

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