Cf 1 zf 0 sf 0 of 0 pf 1

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WebA) ZF=1 B) cF=0 c) ZF=0 D) cF=1 9. 8253定时/计数器中，某计数据的最大计数初值是 ( c )。 A) 65536 B) 7FFFH c) 0000H D) FFFFH 10. 在8086/8088中，在T1状态，cPU往总线发出 ( c )信号。 A）数据 B）状态 c）地址 D）其它三、简答题： (每题6分，共24分) 1. EU和BIU各负责什么工作？ EU：负责指令的执行。 BIU：负责与存储器、I/o端口传送数据（ … Webflag寄存器（标志寄存器）是一个十六位寄存器，flag寄存器的1、2、3、12、13、14、15位没有任何含义。其余各位分别代表不同的意义ZF标志指令执行后，其结果是否为0，若 …

Setting and clearing the zero flag in x86 - Stack Overflow

WebNov 18, 2024 · For each of the following instructions, give the new destination contents and the new settings of CF,SF,ZF,PF, and OF. Suppose that the flags are initially 0 in each part of this question. (Note: need not show AF) a. ADD AX,BX where AX contains 7FFFh and BX contains 0001h. b. Webflag寄存器（标志寄存器）是一个十六位寄存器，flag寄存器的1、2、3、12、13、14、15位没有任何含义。其余各位分别代表不同的意义ZF标志指令执行后，其结果是否为0，若结果为0，那么ZF=1；如果不为0，那么ZF=0。PF标志指令执行后，其结果的二进制表示中1的个数是否为偶数，若1的个数为偶数，PF=1 ... suzzane haik vantoura

The probability of selected EFLAGS bits - Stack Overflow

WebSolved Simulate the given instructions (below) and determine Chegg.com. Engineering. Computer Science. Computer Science questions and answers. Simulate the given … Webc.) ah=c4; sf=1; zf=0; af=0; pf =0; cf=0; of=0 d.) ah=c4; sf=1; zf=0; af=0; pf =0; cf=1; of=0 3.) It is a data transfer instruction that transfers a word data pointed to by SP to the … WebInitially CF=0; AF=1; ZF=0; SF=0; PF=1, DF=0; IF=1; OF=0, TF=0; NT=1, IOPL=00 1.MOV AL, 83 2.MOV CL, AL 3.MOV BL, BE 4.SUB CL, BL 5. STC 6. CLI 8. It is assumed that … suzzanne kristine krueger

Flag Register of 8086 Microprocessor - Status & Control Flags

WebInitially CF=0; AF=1; ZF=0; SF=0; PF=1, DF=0; IF=1; OF=0, TF=0; NT=1, IOPL=00 1.MOV AL, 83 2.MOV CL, AL 3.MOV BL, BE 4.SUB CL, BL 5. STC 6. CLI 8. It is assumed that there is overflow 9. It is assumed that there is error. HINT: sub destination, source destination-source = difference, destination = difference a. WebFeb 3, 2024 · Flag results: ZF=1 PF=1 SF=0 CF=0 OF=0 (AF=undefined). (Or use sub eax,eax to get well-defined AF=0. In practice modern CPUs pick AF=0 for xor-zeroing, … suzy\u0027s zoo imagesWebZF – Zero Flag- set if a result is zero; cleared otherwise add 0, 0 ZF = 1 SF – Sign Flag – set if a result is negative (i.e. MSB of the result is 1) sub 00000000b, 00000001b 11111111b … bar serna

"WebInitially CF=0; AF=0; ZF=0; SF=0; PF=0. MOV AL, D6 MOV BL, E5 ADD AL, BL Antisymmetric, transitive Determine the property or properties of the relation of the set of … " - Cf 1 zf 0 sf 0 of 0 pf 1

Cf 1 zf 0 sf 0 of 0 pf 1

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WebWhen there is no overflow this flag is set to 0 . Zero Flag (ZF) - set to 1 when result is zero . For none zero result this flag is set to 0 . Sign Flag (SF) - set to 1 when result is negative . When result is positive it is set to 0. Actually this flag … WebMar 26, 2016 · 1. input < 0 will never be true because input is unsigned and OF will be dependent on the operands, not only the result. For example, 8-bit operation 0x7f + 0x02 …

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Web(c) CF=1, ZF=0, SF=1 Write a single instruction using 16-bit operands that clears the high 8 bits of AX and does not change the low 8 bits. and ax,00FFh Write a single instruction using 16-bit operands that sets the high 8 bits of AX and does not change the low 8 … WebSUB AX, 0XA001 Value of Flags after the execution of Add instruction. AF=0, ZF=0, PF =1,CF=1, OF=1, SF=1 Question 3: [10] How many timesJNZ L1instruction will execute? Start: MOV BX, VAR MOV CX, [SIZE] MOV BX,0 L1: ADD AX, [BX] DEC CX ADD BX,1 JNZ L1 END: MOV AX,0X4C00 INT 21H VAR: DB 1,3,5,6,7 SIZE: DW 5 Note: Justify your …

WebCF, ZF and SF (Flag) - Assembly Language on Intel 8086

Web(c) CF=1, ZF=0, SF=1 Write a single instruction using 16-bit operands that clears the high 8 bits of AX and does not change the low 8 bits. and ax,00FFh Write a single instruction using 16-bit operands that sets the high 8 bits of AX and does not change the low 8 … WebMar 7, 2024 · 实验二算术逻辑运算及移位操作一．实验任务 1.实验程序段及结果表格如表：标志位 cf zf sf of pf af 程序段 1： 0 0 0 0 0 0 mov ax, 1018h 0 0 0 0 0 0 mov si, 230ah 0 0 0 0 0 0 add ax, si 0 0 0 0 1 1 add al, 30h 0 0 0 0 0 0 mov dx, 3ffh 0 0 0 0 0 0 add ax，bx 0 0 0 0 0 0 mov [20h], 1000h 0 0 0 0 0 0 add [20h], ax 0 0 0 0 0 0 push ax 0 0 0 0 0 0 pop bx 0 …

WebDec 28, 2024 · Zero Flag (ZF) : When the microprocessor performs an arithmetic or logical operation in ALU and all the 8 LSBs or 16 LSBs of the result are zero, then ZF = 1. If 8 or …

WebMar 26, 2016 · 1. input < 0 will never be true because input is unsigned and OF will be dependent on the operands, not only the result. For example, 8-bit operation 0x7f + 0x02 = 0x81 will result in OF = 1, but 0x82 + 0xff = 0x81 will result in OF = 0. This code is wrong, so some code that sets flags correctly is more neat than this way. bar serrania campanarWeb– ZF = 1 if AL = 0 – SF=1 if AL < 0 – SF = ZF = 0 if AL > 0 ... Jump if Parity PF = 0 odd JNP Jump if Parity PF = 1 even JP ... Jumps based on Unsigned Comparisons JNA Jump if not above CF = 1 or ZF = 1 Jump if below or CF = 1 or ZF = 1 equal JBE JNAE Jump if not above CF = 1 Jump if below CF = 1 (op1 < op2) JB suzzane zhangWebApr 22, 2013 · 1、cf（进位标志） =1 算术操作最高位产生了进位或借位， =0 最高位无进位或借位（ cf=1 则说明了有进位或借位，cf=0 则说明了无借位）； 2、PF（奇偶标志） … suzy vortrugWebItem 1.01. Entry into a Material Definitive Agreement. rYojbaba Inc. Consulting Agreement On April 4, 2024 (the “rYojbaba Effective Date”), HeartCore Enterprises, Inc. (the … suzzara blue k24Webret ; return the flags: SF:ZF:0:AF : 0:PF:1:CF (Try this in NetRun now!) There are various funky jump instructions, like "jc" (jump if CF is set), "jo" (jump if OF is set), and "js" (jump if SF is set) that check these bits. Note there's NO way to get at the flags, or to directly call the flag-using instructions in C! None! bar serra menu tulsaWebStatus Flags - Review The Zero flag is set when the result of an operation equals zero. The Carry flag is set when an instruction generates a result that is too large (or too small) for the destination operand. The Sign flag is set if the destination operand is negative, and it is clear if the destination operand is positive. The Overflow flag is set when an instruction … bar serraniaWebNov 3, 2024 · ZF标志指令执行后，其结果是否为0，若结果为0，那么ZF=1；如果不为0，那么ZF=0。 PF标志指令执行后，其结果的二进制表示中1的个数是否为偶数，若1的个数 … suzzanah