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52 lines
1.7 KiB
Plaintext
52 lines
1.7 KiB
Plaintext
{{QBDLDATE:05-20-2022}}
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{{QBDLTIME:23:09:11}}
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{{DISPLAYTITLE:_MEMFILL}}
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The [[_MEMFILL]] statement converts a value to a specified type, then fills memory with that type including any non-whole remainder.
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{{PageSyntax}}
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: [[_MEMFILL]] {{Parameter|memoryBlock}}, {{Parameter|memoryBlock.OFFSET}}, {{Parameter|fillBytes}}, {{Parameter|value}} [AS {{Parameter|variableType}}]
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{{Parameters}}
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* The {{Parameter|memoryBlock}} [[_MEM]] memory block is the block referenced to be filled.
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* {{Parameter|memoryBlock.OFFSET}} is the starting offset of the above referenced memory block.
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* The {{Parameter|fillBytes}} is the number of bytes to fill the memory block.
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* The {{Parameter|value}} is the value to place in the memory block at the designated OFFSET position.
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* A literal or variable {{Parameter|value}} can be optionally set [[AS]] a variable [[type]] appropriate for the memory block.
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{{PageDescription}}
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* To clear previous data from a [[_MEMNEW]] memory block, use _MEMFILL with a {{Parameter|value}} of 0.
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{{PageExamples}}
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''Example:'' Filling array values quickly using FOR loops or a simple memory fill.
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{{CodeStart}}
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{{Cl|DIM}} a(100, 100) {{Cl|AS}} {{Cl|LONG}}
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{{Cl|DIM}} b(100, 100) {{Cl|AS}} {{Cl|LONG}}
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'filling array a with value 13
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{{Cl|FOR...NEXT|FOR}} i1 = 0 {{Cl|TO}} 100
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{{Cl|FOR...NEXT|FOR}} i2 = 0 {{Cl|TO}} 100
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a(i1, i2) = 13
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{{Cl|NEXT}}
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{{Cl|NEXT}}
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'filling array b with value 13
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{{Cl|DIM}} mema {{Cl|AS}} {{Cl|_MEM}}
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mema = {{Cl|_MEM (function)|_MEM}}(b())
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{{Cl|_MEMFILL}} mema, mema.OFFSET, mema.SIZE, 13 {{Cl|AS}} {{Cl|LONG}}
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{{Cl|_MEMFREE}} mema
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{{CodeEnd}}
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{{PageSeeAlso}}
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* [[_MEM]], [[_MEM (function)]]
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* [[_MEMIMAGE]], [[_MEMNEW]]
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* [[_MEMGET]], [[_MEMPUT]]
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{{PageNavigation}}
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