iushr

iushr

int

Forms
iushr = 124 (0x7c)

Stack
..., value1, value2 ..., result

Description
Both value1 and value2 must be of type int. The values are popped from the operand stack. An int result is calculated by shifting value1 right by s bit positions, with zero extension, where s is the value of the low five bits of value2. The result is pushed onto the operand stack.

Notes
If value1 is positive and s is value2 & 0x1f, the result is the same as that of value1 >> s; if value1 is negative, the result is equal to the value of the expression (value1 >> s) + (2 << ~s). The addition of the (2 << ~s) term cancels out the propagated sign bit. The shift distance actually used is always in the range 0 to 31, inclusive.

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Java Virtual Machine Specification (HTML generated by dkramer on February 25, 1997)
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