Are these things factor to instruction lenght 1) register 2) operand 3) op
Op-code Operand Description 1 RXY LOAD register R from cell XY 2 RXY LOAD register R with value XY 3 RXY STORE register R in cell XY 4 0RS MOVE R to S 5 RST ADD S and T into R (2’s comp.) 6 RST ADD S and T into R (floating pt.) 7 RST OR S and T into R 8 RST AND S and T into R 9 RST XOR S and T into R A R0X ROTATE...
Instruction set architecture R: register X, Y, Op1, Op2: Operand Quantity: constant value EA: Effective memory address Opcode Operation Name MOV X Y XCH Opl, Op2 ADD X, Y SUB X, Y SAL Op. Quantity SAR Op. Quantity SHR Op Quantity AND X, Y OR X. Y XOR X, Y NOT X LOAD RA LOAD R. (A) STORERA STORE R. (A) Description Move data from Y to X Exchange Opl with Op2 X=X+Y X=Y-X Shift Arithmetic Left on Op for...
ISA & Addressing Mode The instruction opcodes and formats for a computer system are as follows Format AD AD OP AD SA OP SA SA LDdir LDindir LDrel LDindex ACC ← 씨씨ADn ACC ← OP ACC ← MPC-AD] ACC ← MRtSA].OP] ACC -RISA] 001 010 011 101 110 ·ISA Suppose the Instruction format ts as follows: AD: Address write the Operation for LDimm and LDreg (for immediate and register direct addressing) OP: Constant Operand SA : Register A ACC is...
TRUE OR FALSE 1. ANDing an operand with 1 sets the zero flag if the operand was originally an even number. 2. The OR instruction can be used to find the intersection of two bit-mapped sets. 3. The JO instruction is used after an operation involving signed integers. 4. XORing an operand with 1 always causes the Zero flag to be set. 5. The XOR instruction can be used to generate the two's complement of an integer.
1.Write the "destination" register in the instruction 671A in a string of 4 bits. 2.The instruction 9158 uses two registers as operands, and a third register as a destination for the result. Which registers are used for the operands? 9 and 1 1 and 5 5 and 8 9 and 8 3. Translate the following instruction into English: 54F2 Add the bit patterns in registers F and 2 together as if they were presented in two's complement and leave the...
Anyone explain to (i), (ii) How can we get the instruction words and R8=?[hex]? (i) instruction words[hex] is 0x4508, and R8= 0xF002 How can I get that? (ii) instruction words[hex] is 0x4548 and R8=0x0002 How can I get that? Consider the following instructions given in the table below. For each instruction determine its length (in words), the instruction words (in hexadecimal), source operand addressing mode, and the content of register R7 after execution of each instruction. Fill in the empty...
Q 2. Assuming a 32-bit operating environment, identify the mode of each operand in the following instructions. (Note: There are two operands in each instruction; identify both modes.) For a memory operand, specify whether it is direct memory mode or register indirect memory mode. Assume that the instructions are in a program also containing the code. .DATA value DWORD ? char BYTE *1. mov value, 100 2. movecx, value 3. mov ah, Oah *4. moveax, (esi] 5. mov [ebx], ecx...
Instruction set architecture R: register X, Y, Opl, Op2: Operand Quantity: constant value EA: Effective memory address Opcode Operation Name MOV X, Y XCH Opl, Op2 ADD X, Y SUB X,Y SAL Op, Quantity SAR Op, Quantity Shift Arithmetic Right on Op for Quantity SHR Op Quanti AND X, Y OR X, Y XOR X, Y NOT X LOADR, A LOAD R, (A STORE R, A STORE R, (A Description Move data from Y to X Exchange Op1 with Op2...
write an 8086 assembly program that 1) adds two operand. 2) that adds operands until the new value to be added is 0. 3) Write a program that increments by 2 the content of a register 10 times.
1. Which register is used as the offset register with segment register CS? 2. If BX=1234H AND THE INSTRUCTION “MOV[2400,BX]” were executed, what would be the contents of memory locations at offsets 2400 and 2401?