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jump if above
je instruction
x86 jmp opcode
conditional jump instructions in 8086
jump instruction in assembly language
cmp x86
x86 jmp
x86 unconditional jump
18 Nov 2015 X86-assembly/Instructions/jnb. From aldeid. Jump to: navigation, search. You are here: X86-assembly · Instructions. jnb. Contents. [hide]. 1 Description; 2 Syntax; 3 Examples; 4 Comments. Description. IF (CF==0) THEN JMP adr. Syntax. Examples. Comments. We were unable to load Disqus. If you are a
73 cb, JNB rel8, Jump short if not below (CF=0). 77 cb, JNBE rel8, Jump short if not below or equal (CF=0 and ZF="0"). 73 cb, JNC rel8, Jump short if not carry (CF=0). 75 cb, JNE rel8, Jump short if not equal (ZF=0). 7E cb, JNG rel8, Jump short if not greater (ZF=1 or SF<>OF). 7C cb, JNGE rel8, Jump short if not greater or
The jump instructions allow the programmer to (indirectly) set the value of the EIP register. The location passed as the argument is usually a label. The first instruction executed after the jump is the instruction immediately following the label. All of the jump instructions, with the exception of
label1: PRINT 'AL < 5.' exit: RET. CZSOPA unchanged. JNB label. Short Jump if first operand is Not Below second operand (as set by CMP instruction). Unsigned. Algorithm: if CF = 0 then jump. Example: include 'emu8086.inc'. ORG 100h. MOV AL, 7. CMP AL, 5. JNB label1. PRINT 'AL < 5.' Page 20 of 53. 8086 instructions
Looking more closely I found that many of the instructions were synonyms for each other, and in practice the whole gamut is not needed, and in the process found JNB JAE JNC, Jump if not below. Jump if above or equal. Jump if not carry, unsigned, CF = 0, 73, 0F 83. JBE JNA, Jump if below or equal. Jump if not above
coder32 edition of X86 Opcode and Instruction Reference. 0E, PUSH, CS, Push Word, Doubleword or Quadword Onto the Stack. 0F, 02+, Two-byte Instructions. 10, r, L, ADC, r/m8 .. 73, JNB, rel8 .c, Jump short if not below/above or equal/not carry (CF=0). JAE, rel8. JNC, rel8. 74, JZ, rel8 .z Jump short if zero/equal
The x86 instruction set refers to the set of instructions that x86-compatible microprocessors support. The instructions are usually part of an executable program, often stored as a computer file and executed on the processor. The x86 instruction set has been extended several times, introducing wider registers and datatypes
Opcode JNB. CPU: i8086+. Type Of Instruction: User Instruction: JNB address. Description: IF (CF==0) THEN JMP adr. Affected Flags: None Notes: Jump address is relative 8/16bit address. Same as JAE
jnb instruction jumps when the carry flag is zero. The cmp instruction updates the flags according to the result of the subtraction of src operand from the dst operand. The dst operand is the first operand in the Intel notation, thus, the flags will be updated according to the result of [ebp+var_8]-eax .
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