Question

6. What will be the final value in EDX after this code executes? mov edx, 1 mov eax,7FFFh cmp eax,0FFFF8000h jl L2 mov edx,0 し2: 7. (True/False): The following code will jump to the label named Target. mov eax,-30 cmp eax,-50 ig Target 8. Implement the following pseudocode in assembly language. Use short-circuit evaluation and assume that vall and X are 32-bit variables. if vall >ecx ) AND (ecx> edx) X=1 else X=2;

Answer 1

Hello Guys

Answer 6: EDX final value is 0.

jl means Jump less. jl instruction is a conditional jump. Jl performs a signed comparison after cmp if the destination operand is less than the source operand.

syntax: jl destination, source

mov edx,1

mov eax,7FFFh

cmp eax, 0FFF8000h    //   cmp destination, source   here destination is greater then source

jl F2 // jl work when destination is less than source but above destination is greater that why it not   work

mov edx,0    finally edx has 0 because jl is not execute

F2:

Answer 7:   True

jg stands for jump greater. it is also a conditional jump. jg instruction is a conditional jump. Jg performs a signed comparison after cmp if the destination operand is greater than the source operand.

mov eax, -30;

cmp eax,-50      //eax has -30 valve which is greater than -50. condition is true.

jg target       // jg jump on target

Answer 8:

mov vall,r1;

cmp ecx,edx   // if condition is true means ecx is greater than edx then go to lable F2

jg F2             // jump greater

mov#2,_X       // if false then set X==2

F2:cmp r1,ecx             // compare again r1 with ecx if r1 is greater then move F3

jg F3                         // jump on F3 if condition is true

mov#2,_X     // if condition false then set X==2

F3:

mov#1,_X       // Set x==1 because both condition is true