Write the symbolic microprogram routines for the BSA (branch and save address) instructions defined in Chap. 5

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Write the symbolic microprogram routines for the BSA (branch and save address) instructions defined in Chap. 5 (Table 5-4). Use the microinstruction format of Sec. 7-3. Minimize the number of microinstructions.

Table 5-4

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Write the symbolic microprogram routines for the BSA (branch and save address) instructions defined in Chap. 5

Question:

Symbol AND ADD LDA STA BUN BSA ISZ TABLE 5-4 Memory-Reference Instructions Operation decoder Do D₁ D₂ D₂ D₁ Do Symbolic description AC AC A M[AR] AC AC + M[AR], E-Cout AC M[AR] ← M[AR] AC ← PC AR M[AR] PC, PC+AR + 1 M[AR] M[AR] + 1, If M[AR] + 1 = 0 then PC-PC + 1 ←

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Computer System Architecture

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