Web27 Nov 2014 · Zero Flag (ZF)The Zero flag is set when the result of an operation produces zero in the destination operand.mov sub mov inc inc cx,1 cx,1 ax,0FFFFh ax ax ; CX = 0, ZF = 1 ; AX = 0, ZF = 1 ; AX = 1, ZF = 0. Remember... A flag is set when it equals 1. A flag is clear when it equals 0. Irvine, Kip R. Assembly Language for Intel-Based Computers, 2003. WebZero Flag (ZF) Whenever the destination operand equals Zero, the Zero flag is set. mov cx,1 sub cx 1sub cx, 1 ;CX=0 ZF=1; CX = 0, ZF = 1 mov ax,0FFFFh in cca ax ;;0, AX = 0, ZF = 1 …
Arithmetic Flags and Instructions - Carleton University
http://site.iugaza.edu.ps/ayash/files/Assembly-Chapter4_Part1.pdf Webmov ax,8000h. sub ax,0FFFFh . AX=? Explain why . 2) mov al, 80h. sub al, -5 AL=? Expert Answer. Who are the experts? Experts are tested by Chegg as specialists in their subject area. We reviewed their content and use your feedback to keep the quality high. tarak name origin
Addition and Subtraction Instructions
WebSUB AX,1 SBB DX,0 JC @@2 CMP BL,ES:[DI] JE @@1 @@2: RET Như tôi có trình bày ở phần trên, các dòng chèn thêm không thực hiện bất cứ một ... mov AX,0FFFFh vì FFFFh là giá trị tối đa mà DelayCount (biến dạng word 2 byte) có … WebSTC. INC AX. At this point, the Carry Flag will always be SET, regardless of AX's. value. INC neither sets or clears the Carry Flag. : The ADD AX,1 does influence the carry flag though so this really isn't. : that much of a problem. : What I really don't understand is how the Overflow Flag (OF) works. Web21 Nov 2024 · 6. unsigned 0 CF=0 Question 4: Suppose SUB AX,BX is executed. In each of the following parts, the first number being added is the content of AX, and the second number is the contents of BX. Give the resulting value of AX and tell whether signed or unsigned overflow occurred. a) 2143h-1986h b) 81FEh-1986h c) 19BCh-81FEh d) 0002h … bat bar austin tx