Given BX is 2839H, and CL is 04H. Give the content of BX register and C flag after execution of each instruction. Assume instructions are executed after each other. SHL BX, CL BX: SAR BX, 2 BX: ROL BX, CL BX: RCL BX, 2 BX: ROR BX, 4 BX: C: C: C: C: C:
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- The instruction used to copy two bytes from the stack to the Flags Register is: SAHF CMC PUSHF LAHF POPF STC The instruction that can be used to exchange between BL and BH is: * ROL BX, 4 ROL BL, BH ROR BX, 16 ROR BH, BL ROR BX, 8 RCR BX, 8 RCR BL BH To divide the signed number in AX by 2 using shift operations, which instruction should be used: * SAL AX, 1 SHL AX, 2 SAL AX, 2 SHL AX, 1 SHR AX, 1 SHR AX, 2 SAR AX, 1 SAR AX, 2Write down the values of destination operands and flags after the execution of each instruction: code 1 mov cx, sub cx, 1 ; (a) CX = ? ZF = ? mov cx, sub cx, 1 ; (b) CX = ? SF = ? mov al, 0FFH add al, 1 ; (c) AL = ? CF = ? mov al, 0 sub al, 1 ; (d) AL = mov al, 7Fh add al, 1 ; (e) AL = ? CF = ? ? OF = ? mov al, -128 neg al ; (f) CF = ? OF = ?Determine the new contents of BX and the carry flag after executing the following instruction RCL BX, CL; BX=FFB1H, CL=3, and CF=1
- (d) The table below shows the ALUcontrol signal of the datapath we discussed in class. Instruction Funct ALU Орсode ALUop ALU action operation field control Iw 00 load word XXXXXX add 0010 Sw 00 store word XXXXXX add 0010 beq 01 branch equal subtract 0110 XXXXXX R-type 10 add 100000 add 0010 R-type 10 subtract 100010 subtract 0110 R-type 10 AND 100100 AND 0000 R-type 10 OR 100101 OR 0001 R-type 10 set on less than 101010 set on less than 0111 You want to add the bne instruction into the datapath, which already includes the required hardware for the instruction. Write out the ALUop for bne and how you can determine whether the bne results in the branch to be taken.For each LEGv8 instruction in Exercise 2.9, show the value of the opcode (Op), source register (R_n), and target register (Rd or Rt) fields. For the I-type instructions, shown the value of the immediate field, and for the R-type instructions, show the value of the second source register (Rm). ADDI X9, X6, #8 ADD, X10, X6, XZR STUR X10, [X9, #0] LDUR X9, [X9, #0] ADD X0, X9, X10BX=FFFF, after instruction INC BX is executed, CF ||
- 2. What will be the value in the destination register after each of the following instructions executes in sequence, given that CL, DX, and AL are initialized to 3, 1001111010111100, and 01010111 respectively? shr dx, 1 shr dx, cl rol dx, cl ror al, 1 rcr al, cl rcr dx, 1 sar dx, cl sar al, 1 rcl dx, cl rcl al, cl med Walted Bonde ; a. ; b. ; c. ; d. ; e. ; f. ; g. ; h. ; i. ; j.Da batean rioned how mrithoglA S.O.The instruction used to fill DX with the its sign bit is: * CWD SAR DX, 1 SAR DX, SF SHR DX, CL SHR DX, SF SAR DX, 10 SAR DX, [SF] SAR DX, 16Assume AL=35h; CL=05. Write the content of AL after RCR AL, CL - showing the calculation steps. Assume a CLC instruction before this RCR instruction. (Note : Solve the question in paper, scan and upload along with the other Part B and C answers) A- BI E E I E
- in 01: Write the code based on the logic instruction for the following program emu8086 expression: A = AC + (B+ C) + AC Where: AL=16,, BL= B7, , and CL=32,For the given values of D, shr, shr_in, Id, and clk, indicate the register's Q value. Dis 111, shr_in is 0, shr is 1, Id is 0, and Q is 101. clk rises. What does Q become? Function table shr ld Register function 0 Maintain 1 Lood 0 Shift-right 1Maintain dl do shr in- 13 12 1 10 st 13 12 i 0 s1 13 12 it 0 shr ld 4x1 4x1 4x1 P. Block symbol D FF DFF D FF to shr in she 3-bit shift-right/bod 3-bit ahift-right/bed register ld register of 010 O 110 O 101 O 111 8-Assume that the contents of the register r16 and carry flag are 0xA5 and 1, respectively. What will be new values for r16 and C after the execution of: (a) lsl r16 (b) lsr r16 (c) rol r16 (d) ror r16 (e) asr r16 (f) swap r16