daload : retrieve double-precision float from array : index : visitInsn()

Description

Retrieves an entry from a double precision float array and places it on the stack. arrayref is a reference to an array of double-precision floating point numbers. index is an int. The arrayref and index are removed from the stack, and the two-word value at the given index in the array is pushed onto the stack.

Example

; This is like the Java code:
;     double x = arr[0];
; where x is local variable 2 and arr is a double array in local variable 1
aload_1       ; load local variable 1 onto the stack
iconst_0      ; push the integer 0 onto the stack
daload        ; retrieve the entry
dstore_2      ; store the entry in local variable 2

Exceptions

NullPointerException - arrayref is null

ArrayIndexOutOfBoundsException - index is < 0 or is >= arrayref.length

Notes

Array indices start at 0 (the first entry in the array is at index 0).

See also

iaload faload laload aaload baload caload saload iastore lastore fastore dastore aastore bastore castore sastore

Stack

Before	After
index	value-word1
arrayref	value-word2
...	...

Bytecode

Type	Description
u1	daload opcode = 0x31 (49)