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BOUND Check Array Bounds (186/286/386) Flags: O D I T S Z A P C
BOUND destination, source
Logic: if (destination < source[0] | destination > source[1])
INT 5
This instruction checks the bounds on arrays. It verifies that a signed
index value is within the bounds of an array. The destination must be
a register holding the index to be checked. The source must be a
memory location holding the starting and ending indices of the array.
If the given index is out of bounds, an INT 5 is generated.
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Operands Clocks Transfers Bytes Example
BOUND reg16,mem32 13 (286) - 2 BOUND AX,DS:TOP
BOUND reg32,mem64 (386) 10 (386) - 2 BOUND EAX,MEMLOC5
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