Exemple dexécution dun programme ISTORE 1 Jeux dinstructions de la machine Traduction en hexa 0x36 0x01.

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Presentation transcript:

Exemple dexécution dun programme ISTORE 1 Jeux dinstructions de la machine Traduction en hexa 0x36 0x01

Exemple chargement dune instruction 3 0x00 0x36 0x05 0x00 0x04 Addr Alu JM 4 to 16 Decoder High Bit C B MPC B Bus C Bus Memory control signals (rd,wr,fetch) N Z MIR JMPC JAMN/JAMZ

Exemple Istore (H=LV; Goto Istore2) 3 0x01 0x36 0x05 0x00 0x04 Addr Alu JM 4 to 16 Decoder High Bit C B MPC B Bus C Bus Memory control signals (rd,wr,fetch) N Z MIR JMPC JAMN/JAMZ

Exemple Istore (MAR=MBRU+H; Goto Istore3) 3 0x01 0x05 0x00 0x04 0x00 Addr Alu JM 4 to 16 Decoder High Bit C B MPC B Bus C Bus Memory control signals (rd,wr,fetch) N Z MIR JMPC JAMN/JAMZ Arrivée de la donnée. (Lecture déclenchée dans le Main1)

Exemple Istore (MDR=TOS;Wr; Goto Istore4) 3 0x01 0x05 0x00 0x04 Addr Alu JM 4 to 16 Decoder High Bit C B MPC B Bus C Bus Memory control signals (rd,wr,fetch) N Z MIR JMPC JAMN/JAMZ

Exemple Istore (MDR=TOS;Wr; Goto Istore4) 3 0x01 0x04 0x01 0x05 0x00 0x04 Addr Alu JM 4 to 16 Decoder High Bit C B MPC B Bus C Bus Memory control signals (rd,wr,fetch) N Z MIR JMPC JAMN/JAMZ

Exemple Istore (PC=PC+1;fetch; Goto Istore6) 3 0x04 0x01 0x04 0x00 0x04 Addr Alu JM 4 to 16 Decoder High Bit C B MPC B Bus C Bus Memory control signals (rd,wr,fetch) N Z MIR JMPC JAMN/JAMZ

Exemple Istore (TOS=MDR; Goto Main1) 3 0x04 0x07 0x02 0x01 0x04 0x00 0x04 Addr Alu JM 4 to 16 Decoder High Bit C B MPC B Bus C Bus Memory control signals (rd,wr,fetch) N Z MIR JMPC JAMN/JAMZ Arrivée de la donnée. Lecture déclenchée dans Istore4

Résultat 3 0x04 0x07 0x02 0xXX 0x04 0x00 0x07 Addr Alu JM 4 to 16 Decoder High Bit C B MPC B Bus C Bus Memory control signals (rd,wr,fetch) N Z MIR JMPC JAMN/JAMZ Arrivée de la prochaine instruction.

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