Memset - Revision history

Sandman at 12:48, 29 April 2008

2008-04-29T12:48:35Z

←Older revision		Revision as of 12:48, 29 April 2008
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	End		End
	</pre>		</pre>
-	Used in example: [[alloc]](), [[memsetw]](), [[say]](), [[free]](), [[pointer]]	+	Used in example: [[alloc]](), [[memset]](), [[memsetw]](), [[say]](), [[free]](), [[pointer]]

	Also usable in conjunction with [[map_buffer]]() with 8bit [[map]]s. (''Example needed.'')		Also usable in conjunction with [[map_buffer]]() with 8bit [[map]]s. (''Example needed.'')
		+
		+	{{Funcbox
		+	\| category = Memory
		+	}}

Sandman at 14:59, 28 April 2007

2007-04-28T14:59:13Z

←Older revision		Revision as of 14:59, 28 April 2007
Line 50:		Line 50:
	end		end

-	// Write numbers to words	+	// Write numbers to words
-	memsetw(pword,345,elements);	+	memsetw(pword,345,elements);

	// Show numbers		// Show numbers
Line 60:		Line 60:
	end		end

-	~~Loop~~	+	Repeat
	frame;		frame;
-	~~End~~	+	Until(key(_esc))
		+
		+	// Free the used memory
		+	free(pbyte);
		+	free(pword);
		+	free(pint);

	End		End
	</pre>		</pre>
-	Used in example: [[alloc]](), [[memsetw]](), [[say]](), [[pointer]]	+	Used in example: [[alloc]](), [[memsetw]](), [[say]](), [[free]](), [[pointer]]

	Also usable in conjunction with [[map_buffer]]() with 8bit [[map]]s. (''Example needed.'')		Also usable in conjunction with [[map_buffer]]() with 8bit [[map]]s. (''Example needed.'')

Sandman at 00:30, 28 April 2007

2007-04-28T00:30:51Z

←Older revision		Revision as of 00:30, 28 April 2007
Line 3:		Line 3:

	==Definition==		==Definition==
-	'''INT''' memset ( <'''~~BYTE~~ POINTER''' data> , <'''BYTE''' value> , <'''INT''' bytes> )	+	'''INT''' memset ( <'''VOID POINTER''' data> , <'''BYTE''' value> , <'''INT''' bytes> )

	Sets all bytes in a certain memory block to a certain value.		Sets all bytes in a certain memory block to a certain value.
Line 9:		Line 9:
	== Parameters ==		== Parameters ==
	{\|		{\|
-	\| '''~~BYTE~~ POINTER''' data \|\| - Pointer to the block of bytes in memory	+	\| '''VOID POINTER''' data \|\| - Pointer to the block of bytes in memory
	\|-		\|-
	\| '''BYTE''' value \|\| - Value to set all bytes to.		\| '''BYTE''' value \|\| - Value to set all bytes to.
Line 67:		Line 67:
	</pre>		</pre>
	Used in example: [[alloc]](), [[memsetw]](), [[say]](), [[pointer]]		Used in example: [[alloc]](), [[memsetw]](), [[say]](), [[pointer]]
-	Also usable in conjunction with [[map_buffer]]() with 8bit ~~maps~~. (''Example needed.'')	+
		+	Also usable in conjunction with [[map_buffer]]() with 8bit [[map]]s. (''Example needed.'')

Sandman at 22:41, 27 April 2007

2007-04-27T22:41:01Z

←Older revision		Revision as of 22:41, 27 April 2007
Line 67:		Line 67:
	</pre>		</pre>
	Used in example: [[alloc]](), [[memsetw]](), [[say]](), [[pointer]]		Used in example: [[alloc]](), [[memsetw]](), [[say]](), [[pointer]]
		+	Also usable in conjunction with [[map_buffer]]() with 8bit maps. (''Example needed.'')

Sandman at 22:32, 27 April 2007

2007-04-27T22:32:25Z

New page

[[Category:functions]]
[[Category:memory]]

==Definition==
'''INT''' memset ( <'''BYTE POINTER''' data> , <'''BYTE''' value> , <'''INT''' bytes> )

Sets all bytes in a certain memory block to a certain value.

== Parameters ==
{|
| '''BYTE POINTER''' data || - Pointer to the block of bytes in memory
|-
| '''BYTE''' value || - Value to set all bytes to.
|-
| '''INT''' bytes || - Number of bytes to change the value of.
|}

== Returns ==
'''INT''' : [[true]]

== Example ==
<pre>
Program example;
Private
byte pointer pbyte;
word pointer pword;
int pointer pint;
int elements = 10;
int i;
Begin

// Allocate memory
pbyte = alloc(elements);
pword = alloc(elements*sizeof(word));
pint = alloc(elements*sizeof(int));

// Reset memory to 0's
memset (pbyte,0,elements);
memsetw(pword,0,elements); // same as memset(pword,0,elements*sizeof(word));
// because value-parameter is 0.
memset (pint ,0,elements*sizeof(int)); // There isn't a "memseti()", so we need to
// set the individual bytes to 0. To change
// ints to nonzero values, memset() can't be
// used easily

// Write numbers to bytes and ints
for(i=0; i<elements; i++)
pbyte[i] = 133; // pbyte[i] is the same as *(pbyte+i)
*(pint+i) = 4555; // pint[i] is the same as *(pint+i)
end

// Write numbers to words
memsetw(pword,345,elements);

// Show numbers
for(i=0; i<elements; i++)
say("byte["+i+"] = " + *(pbyte+i));
say("word["+i+"] = " + pword[i]);
say("int ["+i+"] = " + pint[i]);
end

Loop
frame;
End

End
</pre>
Used in example: [[alloc]](), [[memsetw]](), [[say]](), [[pointer]]