fload : retrieve float from local variable : index : visitVarInsn()

Description

Pushes the float value held in a local variable onto the operand stack. The fload instruction takes a single parameter, <varnum>, an unsigned integer which indicates which local variable to retrieve. The single-word float held in that local variable is retrieved and placed on the stack. <varnum> must be a valid local variable number in the current frame.

Example

fconst_2        ; push 2.0 onto the stack
fstore 1        ; pop 2.0 off of the stack and store in local variable 1
fload 1         ; push the value from local variable 1 (the value 2.0)
                ; back onto the stack

See also

iload lload aload dload wide

Stack

Before	After
...	float-value
	...
	...

Bytecode

Type	Description
u1	fload opcode = 0x17 (23)
u1	<varnum>

There is also a wide format for this instruction, which supports access to all local variables from 0 to 65535:

Type	Description
u1	wide opcode = 0xC4 (196)
u1	fload opcode = 0x17 (23)
u2	<varnum>