Assembler:Commands:SUB - Revision history

TheyCallMeTim13 at 16:06, 3 January 2018

2018-01-03T16:06:02Z

TheyCallMeTim13 at 15:35, 3 January 2018

2018-01-03T15:35:18Z

TheyCallMeTim13 at 22:19, 19 March 2017

2017-03-19T22:19:31Z

TheyCallMeTim13 at 11:33, 19 March 2017

2017-03-19T11:33:03Z

TheyCallMeTim13 at 04:39, 15 March 2017

2017-03-15T04:39:01Z

TheyCallMeTim13 at 04:21, 15 March 2017

2017-03-15T04:21:27Z

TheyCallMeTim13 at 07:53, 14 March 2017

2017-03-14T07:53:37Z

TheyCallMeTim13: /* Examples */

2017-03-13T16:57:44Z

‎Examples

TheyCallMeTim13: Created page with ''''command''' sub ''destination'', ''source'' Subtracts the source from the destination. Subtracts the second operand (source operand) from the first operand (destination opera…'

2017-03-13T16:37:02Z

Created page with ''''command''' sub ''destination'', ''source'' Subtracts the source from the destination. Subtracts the second operand (source operand) from the first operand (destination opera…'

New page

'''command''' sub ''destination'', ''source''

Subtracts the source from the destination.

Subtracts the second operand (source operand) from the first operand (destination operand)
and stores the result in the destination operand.
The destination operand can be a register or a memory location;
the source operand can be an immediate, register, or memory location.
(However, two memory operands cannot be used in one instruction.)
When an immediate value is used as an operand, it is sign-extended to the
length of the destination operand format.

The SUB instruction performs integer subtraction.
It evaluates the result for both signed and unsigned integer operands and sets
the '''OF''' and '''CF''' flags to indicate an overflow in the signed or unsigned result, respectively.
The '''SF''' flag indicates the sign of the signed result.

The '''OF''', '''SF''', '''ZF''', '''AF''', '''PF''', and '''CF''' flags are set according to the result.

destination = destination - source

=== 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 ==
sub al,1

sub ax,1

sub eax,1

sub rax,-1

sub [eax],0x9

sub [rax],1

sub [rax],rsi

sub eax,[rax]

sub rax,[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]
* [http://x86.renejeschke.de/html/file_module_x86_id_308.html x86.renejeschke.de/html/file_module_x86_id_308.html]

← Older revision		Revision as of 16:06, 3 January 2018
Line 13:		Line 13:

	The SUB instruction performs integer subtraction. It evaluates the result for both signed and unsigned integer operands and sets the '''OF''' and '''CF''' flags to indicate an overflow in the signed or unsigned result, respectively. The '''SF''' flag indicates the sign of the signed result.		The SUB instruction performs integer subtraction. It evaluates the result for both signed and unsigned integer operands and sets the '''OF''' and '''CF''' flags to indicate an overflow in the signed or unsigned result, respectively. The '''SF''' flag indicates the sign of the signed result.
		+
		+	[http://c9x.me/x86/html/file_module_x86_id_308.html c9x.me/x86/html/file_module_x86_id_308.html]
	</div>		</div>

@@ Line 13: / Line 13: @@
 The SUB instruction performs integer subtraction. It evaluates the result for both signed and unsigned integer operands and sets the '''OF''' and '''CF''' flags to indicate an overflow in the signed or unsigned result, respectively. The '''SF''' flag indicates the sign of the signed result.
 </div>
@@ Line 56: / Line 54: @@
 {{AssemblerCommandSeeAlso}}
-== External links ==
+{{Template:AssemblerCommandExternalLinks}}

@@ Line 54: / Line 54: @@
   sub [SomeSymbol],eax
-== See also ==
+{{AssemblerCommandSeeAlso}}
 == External links ==

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

← Older revision		Revision as of 04:39, 15 March 2017
Line 63:		Line 63:
	* [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 61: / Line 61: @@
 * [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]

@@ Line 3: / Line 3: @@
 Subtracts the source from the destination.
-Subtracts the second operand (source operand) from the first operand (destination operand)
+The '''OF''', '''SF''', '''ZF''', '''AF''', '''PF''', and '''CF''' flags are set according to the result.
-and stores the result in the destination operand.
-The destination operand can be a register or a memory location;
+ destination = destination - source
-the source operand can be an immediate, register, or memory location.
-The SUB instruction performs integer subtraction.
+<div style="padding:2px;border:1px dashed #2f6fab;background-color:#f4f4f4;">
-It evaluates the result for both signed and unsigned integer operands and sets
+Subtracts the second operand (source operand) from the first operand (destination operand) and stores the result in the destination operand. The destination operand can be a register or a memory location; the source operand can be an immediate, register, or memory location. (However, two memory operands cannot be used in one instruction.) When an immediate value is used as an operand, it is sign-extended to the length of the destination operand format.
-The '''OF''', '''SF''', '''ZF''', '''AF''', '''PF''', and '''CF''' flags are set according to the result.
+The SUB instruction performs integer subtraction. It evaluates the result for both signed and unsigned integer operands and sets the '''OF''' and '''CF''' flags to indicate an overflow in the signed or unsigned result, respectively. The '''SF''' flag indicates the sign of the signed result.
- destination = destination - source
+[http://x86.renejeschke.de/html/file_module_x86_id_308.html x86.renejeschke.de/html/file_module_x86_id_308.html]
@@ Line 66: / Line 62: @@
 * [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 16:57, 13 March 2017
Line 53:		Line 53:
	sub rax,[rax]		sub rax,[rax]

		+	sub [SomeSymbol],1
		+
		+	sub [SomeSymbol],eax

	== See also ==		== See also ==