Java Virtual Machine (Java Series)
drem
drem Stack
Before | After |
| value1-word1 | result-word1 |
| value1-word2 | result-word2 |
| value2-word1 | ... |
| value2-word2 | |
| ... |
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.
Bytecode
Type | Description |
| u1 | drem opcode = 0x73 (115) |
irem, frem, lrem
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.
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Java Virtual Machine, by Jon Meyer and Troy Downing, O'Reilly Associates
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