31.

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istore_<n>

store integer in local variable <n>

Jasmin Syntax

     istore_0 or     istore_1 or     istore_2 or     istore_3 

Stack

Before	After
value	...
...

Description

Pops an int off the stack and stores it in local variable <n>, where <n> is 0, 1, 2 or 3. <n> must be a valid local variable number in the current frame.

'istore_<n>' is functionally equivalent to 'istore <n>', although it is typically more efficient and also takes fewer bytes in the bytecode.

Example

 istore_0        ;store integer in local variable 0 istore_1        ;store integer in local variable 1 istore_2        ;store integer in local variable 2 istore_3        ;store integer in local variable 3 

Bytecode

Type	Description
u1	istore_0 opcode = 0x3C (59)
u1	istore_1 opcode = 0x3D (60)
u1	istore_2 opcode = 0x3E (61)
u1	istore_3 opcode = 0x3F (62)

See Also

lstore, fstore, dstore, astore

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Java Virtual Machine, by Jon Meyer and Troy Downing, O'Reilly Associates