drem : remainder of two doubles : index : visitInsn()

Description

Pops two double-precision numbers off the operand stack, divides by the top double, computes the remainder and pushes the double-precision result back onto the stack. This is like the C function fmod. The remainder is computed using the equation:

remainder = value2 - (intof( value2 / value1 ) * value1)

where intof () rounds towards the nearest integer, or towards the nearest even integer if the number is half way between two integers.

Notes

1. Divide by zero will result in NaN being pushed onto the stack as the result.

2. This operation is not the same as the IEEE-defined remainder operation, which uses slightly different rules for rounding. Use the Java library routine Math.IEEEremainder if you want the IEEE behavior.

See also

irem frem lrem

Stack

Before	After
value1-word1	result-word1
value1-word2	result-word2
value2-word1	...
value2-word2	...
...	...

Bytecode

Type	Description
u1	drem opcode = 0x73 (115)