2. How long does a 2.5-GHz Mic-1 take to execute the Java statement: i = Give...

 

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2. How long does a 2.5-GHz Mic-1 take to execute the Java statement: i = Give your answer in nanoseconds. 3. In the microprogram for Mic-1, in if icmpeq3, MDR is copied to H. A few lines later it is subtracted from TOS to check for equality. Surely it is better to have one statement here: Z = TOS MDR; rd If_cmpeq3 Why is this not done? i=j+k; 4. Write microcode for the Mic-1 to implement the JVM POPTWO instruction. This instruction removes two words from the top of the stack. 5. Referring to IJVM instruction table and the Mic-1 microprogram, please write out the 36 bits for each of the following symbolic microinstructions. Here we assume a) JAM bits are always Os; b) MBR has the operation code of IAND instruction initially; and c) the address of Mainl is 0x00: Mainl: PC PC + 1; fetch; goto (MBR) MAR SP SP -1; rd HTOS MDR TOS MDR AND H; Wr; goto Mainl Iandl: Iand2: Iand3: 2. How long does a 2.5-GHz Mic-1 take to execute the Java statement: i = Give your answer in nanoseconds. 3. In the microprogram for Mic-1, in if icmpeq3, MDR is copied to H. A few lines later it is subtracted from TOS to check for equality. Surely it is better to have one statement here: Z = TOS MDR; rd If_cmpeq3 Why is this not done? i=j+k; 4. Write microcode for the Mic-1 to implement the JVM POPTWO instruction. This instruction removes two words from the top of the stack. 5. Referring to IJVM instruction table and the Mic-1 microprogram, please write out the 36 bits for each of the following symbolic microinstructions. Here we assume a) JAM bits are always Os; b) MBR has the operation code of IAND instruction initially; and c) the address of Mainl is 0x00: Mainl: PC PC + 1; fetch; goto (MBR) MAR SP SP -1; rd HTOS MDR TOS MDR AND H; Wr; goto Mainl Iandl: Iand2: Iand3:

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