Difference between revisions of "Assembler:Commands:CMOVNL"
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| − | < | + | [[Category:Assembler]] |
| + | '''command''' cmovnl ''destination, source'' | ||
| + | |||
| + | cmovnl is CMOVcc instruction, The cmovnl ''conditional move if not less'' check the state of '''SF''' AND '''OF'''. | ||
| + | |||
| + | If '''SF=OF''' then condition is satisfied, otherwise it will be skipped. | ||
| + | |||
| + | CMOVcc instructions are mainly used after [[Assembler:Commands:CMP|CMP]] | ||
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| + | |||
| + | <div style="padding:2px;border:1px dashed #2f6fab;background-color:#f4f4f4;"> | ||
| + | The CMOVcc instructions check the state of one or more of the status flags in the EFLAGS register (CF, OF, PF, SF, and ZF) and perform a move operation if the flags are in a specified state (or condition). A condition code (cc) is associated with each instruction to indicate the condition being tested for. If the condition is not satisfied, a move is not performed and execution continues with the instruction following the CMOVcc instruction. | ||
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| + | These instructions can move a 16- or 32-bit value from memory to a general-purpose register or from one general-purpose register to another. Conditional moves of 8-bit register operands are not supported. | ||
| + | |||
| + | The terms "less" and "greater" are used for comparisons of signed integers and the terms "above" and "below" are used for unsigned integers. | ||
| + | </div> | ||
| + | |||
| + | |||
| + | === Command Parameters === | ||
| + | {|width="85%" cellpadding="10%" cellpadding="5%" cellspacing="0" border="0" | ||
| + | !align="left"|Parameter | ||
| + | !style="width: 80%;background-color:white;" align="left"|Description | ||
| + | |- | ||
| + | |destination | ||
| + | |r16 / r32 | ||
| + | |- | ||
| + | |source | ||
| + | |m16-r16 / m32-r32 | ||
| + | |} | ||
| + | |||
| + | |||
| + | == Examples == | ||
| + | |||
| + | cmovnl dx,ax | ||
| + | |||
| + | cmovnl cx,[bx] | ||
| + | |||
| + | cmovnl edx,[edx+110] | ||
| + | |||
| + | cmovnl eax,edx | ||
| + | |||
| + | cmovnl esi,[00123abc] | ||
| + | |||
| + | cmovnl edi,[UserDefinedSymbol] | ||
| + | |||
| + | |||
| + | {{AssemblerCommandSeeAlso}} | ||
| + | |||
| + | == External links == | ||
| + | * [https://c9x.me/x86/ c9x.me/x86/] | ||
| + | * [http://ref.x86asm.net/ ref.x86asm.net] | ||
| + | * [https://wikipedia.org/wiki/X86_instruction_listings wikipedia.org/wiki/X86_instruction_listings] | ||
Latest revision as of 19:07, 18 March 2019
command cmovnl destination, source
cmovnl is CMOVcc instruction, The cmovnl conditional move if not less check the state of SF AND OF.
If SF=OF then condition is satisfied, otherwise it will be skipped.
CMOVcc instructions are mainly used after CMP
The CMOVcc instructions check the state of one or more of the status flags in the EFLAGS register (CF, OF, PF, SF, and ZF) and perform a move operation if the flags are in a specified state (or condition). A condition code (cc) is associated with each instruction to indicate the condition being tested for. If the condition is not satisfied, a move is not performed and execution continues with the instruction following the CMOVcc instruction.
These instructions can move a 16- or 32-bit value from memory to a general-purpose register or from one general-purpose register to another. Conditional moves of 8-bit register operands are not supported.
The terms "less" and "greater" are used for comparisons of signed integers and the terms "above" and "below" are used for unsigned integers.
Command Parameters[edit]
| Parameter | Description |
|---|---|
| destination | r16 / r32 |
| source | m16-r16 / m32-r32 |
Examples[edit]
cmovnl dx,ax
cmovnl cx,[bx]
cmovnl edx,[edx+110]
cmovnl eax,edx
cmovnl esi,[00123abc]
cmovnl edi,[UserDefinedSymbol]
