Assembler:Commands:TEST - Revision history

Hanslhansl at 21:19, 25 March 2022

2022-03-25T21:19:49Z

TheyCallMeTim13 at 16:06, 3 January 2018

2018-01-03T16:06:43Z

TheyCallMeTim13 at 15:35, 3 January 2018

2018-01-03T15:35:45Z

TheyCallMeTim13 at 22:19, 19 March 2017

2017-03-19T22:19:43Z

TheyCallMeTim13 at 11:33, 19 March 2017

2017-03-19T11:33:15Z

TheyCallMeTim13 at 04:39, 15 March 2017

2017-03-15T04:39:21Z

TheyCallMeTim13 at 04:21, 15 March 2017

2017-03-15T04:21:47Z

TheyCallMeTim13: Created page with ''''command''' test ''destination'', ''source'' The TEST instruction works same as the AND operation, but unlike AND instruc…'

2017-03-14T08:34:51Z

Created page with ''''command''' test ''destination'', ''source'' The TEST instruction works same as the AND operation, but unlike AND instruc…'

New page

'''command''' test ''destination'', ''source''

The TEST instruction works same as the [[Assembler:Commands:AND|AND]] operation, but unlike [[Assembler:Commands:AND|AND]] instruction, it does not change the first operand.

The '''OF''' and '''CF''' flags are set to 0. The '''SF''', '''ZF''', and '''PF''' flags are set according to the result (see the "Operation" section above). The state of the '''AF''' flag is undefined.

<div style="padding:2px;border:1px dashed #2f6fab;background-color:#f4f4f4;">
Computes the bit-wise logical AND of first operand (source 1 operand) and the second operand (source 2 operand) and sets the SF, ZF, and PF status flags according to the result. The result is then discarded.

[http://x86.renejeschke.de/html/file_module_x86_id_315.html x86.renejeschke.de/html/file_module_x86_id_315.html]
</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
|The destination operand
|-
|source
|The source operand
|}

== Examples ==
test al,1

test ax,1

test ax,1

test eax,1

test rax,1

test al,al

test ax,ax

test ax,ax

test eax,eax

test rax,rax

test [eax],eax

test [rax],rax

test [00123ABC],eax

test [SomeSymbol],rax

== See also ==
* [[Assembler]]
* [[Cheat_Engine:Auto Assembler|Auto Assembler]]
* [[Assembler:Commands|Assembler Commands]]

== External links ==
* [https://wikipedia.org/wiki/X86_instruction_listings wikipedia.org/wiki/X86_instruction_listings]
* [https://wikibooks.org/wiki/X86_Assembly/Other_Instructions wikibooks.org/wiki/X86_Assembly/Other_Instructions]
* [http://www.asmpedia.org/index.php?title=Main_Page asmpedia.org]

← Older revision		Revision as of 21:19, 25 March 2022
Line 4:		Line 4:
	The TEST instruction works same as the [[Assembler:Commands:AND\|AND]] operation, but unlike [[Assembler:Commands:AND\|AND]] instruction, it does not change the first operand.		The TEST instruction works same as the [[Assembler:Commands:AND\|AND]] operation, but unlike [[Assembler:Commands:AND\|AND]] instruction, it does not change the first operand.

−	The '''OF''' ~~and~~ '''CF''' ~~flags are~~ set to 0. The '''SF''', '''ZF''', and '''PF''' flags are set ~~according~~ to ~~the result (see the "Operation" section above)~~. The ~~state~~ of ~~the~~ '''AF''' ~~flag~~ is undefined.	+	The '''SF''' flag is set to the most significant bit of the result of the AND. If the result is 0, the '''ZF''' flag is set to 1, otherwise set to 0. The '''PF''' flag is set to the bitwise XNOR of the least significant byte of the result, 1 if the number of ones in that byte is even, 0 otherwise. The '''OF''' and '''CF''' flags are set to 0. The value of '''AF''' is undefined.

@@ Line 9: / Line 9: @@
 <div style="padding:2px;border:1px dashed #2f6fab;background-color:#f4f4f4;">
 Computes the bit-wise logical AND of first operand (source 1 operand) and the second operand (source 2 operand) and sets the SF, ZF, and PF status flags according to the result. The result is then discarded.
 </div>
@@ Line 58: / Line 56: @@
 {{AssemblerCommandSeeAlso}}
-== External links ==
+{{Template:AssemblerCommandExternalLinks}}

← Older revision		Revision as of 11:33, 19 March 2017
Line 1:		Line 1:
		+	[[Category:Assembler]]
	'''command''' test ''destination'', ''source''		'''command''' test ''destination'', ''source''

← Older revision		Revision as of 04:39, 15 March 2017
Line 65:		Line 65:
	* [http://x86.renejeschke.de/ x86.renejeschke.de]		* [http://x86.renejeschke.de/ x86.renejeschke.de]
	* [http://www.asmpedia.org/index.php?title=Main_Page asmpedia.org]		* [http://www.asmpedia.org/index.php?title=Main_Page asmpedia.org]
		+	* [http://ref.x86asm.net/ ref.x86asm.net]

@@ Line 56: / Line 56: @@
   test [SomeSymbol],rax
-== See also ==
+{{AssemblerCommandSeeAlso}}
 == External links ==

@@ Line 63: / Line 63: @@
 * [https://wikipedia.org/wiki/X86_instruction_listings wikipedia.org/wiki/X86_instruction_listings]
 * [https://wikibooks.org/wiki/X86_Assembly/Other_Instructions wikibooks.org/wiki/X86_Assembly/Other_Instructions]
 * [http://www.asmpedia.org/index.php?title=Main_Page asmpedia.org]