==== 7.5.28 iadd ====

Add int 

Format 

iadd 

Forms 

iadd = 66 (0x42) 

Stack 

..., value1.word1, value1.word2, value2.word1, value2.word2 -> ..., result.word1, result.word2 

Description 

Both value1 and value2 must be of type int. The values are popped from the operand stack. The int result is value1 + value2. The result is pushed onto the operand stack. 

If an iadd instruction overflows, then the result is the low-order bits of the true mathematical result in a sufficiently wide two's-complement format. If overflow occurs, then the sign of the result may not be the same as the sign of the mathematical sum of the two values. 

Notes 

If a virtual machine does not support the int data type, the iadd instruction will not be available.