ishr

ishr

Forms
ishr = 122 (0x7a)

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 sign extension, where s is the value of the low five bits of value2. The result is pushed onto the operand stack.

Notes
The resulting value is , where s is value2 & 0x1f. For nonnegative value1, this is equivalent to truncating int division by 2 to the power s. The shift distance actually used is always in the range 0 to 31, inclusive, as if value2 were subjected to a bitwise logical AND with the mask value 0x1f.

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Java Virtual Machine Specification (HTML generated by dkramer on February 25, 1997)
Copyright © 1996 Sun Microsystems, Inc. All rights reserved
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