4.15 The importance of having a good branch predictor depends on how often conditional branches are executed. Together with branch predictor accuracy, this will determine how much time is spent stalling due to mispredicted branches. In this exercise, assume that the breakdown of dynamic instructions into various instruction categories is as follows: R-Type BEQ JMP LW SW 40% 25% 5% 25% 5% Also, assume the following branch predictor accuracies: Always-Taken Always-Not-Taken 2-Bit 45% 55% 85% 4.15.1 [10] <$4.8> Stall cycles due to mispredicted branches increase the CPI. What is the extra CPI due to mispredicted branches with the always-taken predictor? Assume that branch outcomes are determined in the EX stage, that there are no data hazards, and that no delay slots are used.

Please answer this question and provide the explanation    Assume the values of %ecx is 0x00000005 and %edx is 0x00000003. What would be the value of %ecx and %edx after performing the following instruction?   0x5555555461a <+0>:  leal (%ecx, %edx, 8), %edx   %ecx = 0x00000005, %edx = 0x0000003A   %ecx = 0x00000005, %edx = 0x00000018   %ecx = 0x00000005, %edx = 0x00000030   %ecx = 0x00000005, %edx = 0x00000003   %ecx = 0x00000005, %edx = 0x0000001D   %ecx = 0x00000005, %edx = 0x00000040   %ecx = 0x00000055, %edx = 0x0000001D   %ecx = 0x00000005, %edx = 0x0000002A   %ecx = 0x00000005, %edx = 0x00000025   %ecx = 0x00000005, %edx = 0x00000035

E In the following code block(Reference:Q11), you will a set of assembly instructions with corresponding line numbers (line numbers are for informational purpose only and they are not part of the source code). 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 mov edx, 5 dec ecx jmp LABEL1 mov eax, 1 LABEL1: mul edx jmp ecx mov edx, 0678h sub edx, eax jmp DWORD PTR [edx] neg ebx add ecx, ebx mov eax, 0 For each of the conditions/scenario listed below, indicate the corresponding line number (that cause or is associated with the condition/scenario). Enter 0 (Zero) if the condition is not caused by the block of code. 1) Memory indirect jump: type your answer... type your answer... type your answer... type your answer... 2) Register indirect jump: 3) Relative short jump: type your answer... 5) Two's complement type your answer... 4) Relative near jump: 6) Unreachable code