Indicate which of the following instructions clear or set the correspondent flags in the CPSR
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Indicate which of the following instructions clear or set the correspondent flags in the CPSR ...
3) (5) What value will the carry flag contain after these instructions: a) MOV R1,#3 MOVS R2, R1, LSR #1 b) MOV R1,#2 MOVS R2, R1, LSR #1 4) (5) Will this instruction update the flags in the CPSR? ADD R1, R0, #1 Alo it Why or why not?
Determine the contents of register AL and the carry, sign, zero, and overflow flags after the following two 8086 instructions are executed in sequence: MOV AL,0x4C ; Load register AL with 0x4C ADD, AL,0x3E ; Add 0x3E to the contents of AL (which is 0x4C) and place the result (sum) in AL
Which PIC18 instructions do not update status flags?
writing a clear set of instructions for how to start analyzing the reader for a set of instructions
37. What is the binary value of AL after the following instructions have mov al,01101011b stc rcl al,2 38. What is the binary value of AX after the following instructions have executed? mov ax, 0000000010011101b mov bx, 1010101010000000b shld ax, bx,1 39. What is the binary value of AX after the following instructions have executed? mov ax, 0000000010011101b mov bx, 1010101010001011b shrd ax, bx, 2 will be the hexadecimal values of DX and AX after the following instructions have executed?...
Exercise 1 (9 pts) We have seen that ARM has 16*32 bits registers (plus floating point registers) There is also a status register: CPSR. It contains, among other things, the following important status bits N Negative, set when the result of an arithmetic operation is negative (according to the two's complement encoding of the natural numbers . Z- Zero, set when the result of an operation is zero . C Carry, set when an operation results in a carry bit...
Designing a mask for bit manipulation allows us to clear, set, invert, and extract the selected bits in the bit string. Applying bitwise operations AND, OR, XOR, NOT, SHL, SHR, ROL, and ROR allow us to pack and unpack bits in the bit string. In the following instructions below illustrates how bits are being "packed" and "unpacked" from/to the bit string to the 16-bits registers AX/BX, what would be the final bit string value loaded to the memory variable "unpackedData"...
7. In the following set of instructions, what value gets moved into EAX? .data IntArray WORD32 DUP(0) .code MOV eax,SIZEOF IntArray EAX =
1. What will be the contents of BX after the following instructions execute? mov bx,5 stc mov ax,60h adc bx,ax 2. Describe the output when the following code executes in 64-bit mode: .data dividend_hi QWORD 00000108h dividend_lo QWORD 33300020h divisor QWORD 00000100h .code mov rdx,dividend_hi mov rax,dividend_lo div divisor 3. The following program is supposed to subtract val2 from val1. Find and correct all logic errors (CLC clears the Carry flag): .data val1 QWORD 20403004362047A1h val2 QWORD 055210304A2630B2h result QWORD...
1. Initialize CS=OD03 and IP = 0000 2. Assemble the following set of instructions at CS:IP Step-la: PUSH DS Step-1b: MOV AX, 0000 Step-1c: PUSH AX Step-1d: MOV CX, 0005 Step-le: MOV DX, 0000 Step-1f: NOP Step-Ig: INC DX Step-1h: LOOP 000B Step-li: RETIF 3. Execute the instructions one at a time with TRACE commands. Describe the operation performed by each instruction. Note down your observations to any changes in as much detail as possible. a) Instruction-a b) Instruction-b c)...