const

Purpose

Move the given literal value (sign-extended to 32 bits, if necessary) into the specified register.

Op & Format	Mnemonic / Syntax	Arguments
12 11n	const/4 vA, #+B	`A:` destination register (4 bits) `B:` signed int (4 bits)
13 21s	const/16 vAA, #+BBBB	`A:` destination register (8 bits) `B:` signed int (16 bits)
14 31i	const vAA, #+BBBBBBBB	`A:` destination register (8 bits) `B:` arbitrary 32-bit constant
15 21h	const/high16 vAA, #+BBBB0000	`A:` destination register (8 bits) `B:` signed int (16 bits)

First, an adjusted value B' is determined as follows:
- If we are executing the /high16 variant, then B is left-shifted by 16 bits, that is, B'=B << 0x10
- Otherwise, if B is a 4 bit or 16 bit constant, it is sign-extended to 32 bits, that is, B'=sign-extended(B).
- Otherwise, B'=B.
Then, the adjusted value B' is moved into the register A, that is, vA'=B'
If v(A-1) is the lower half of a register pair, v(A-1)' becomes undefined.
If v(A+1) is the upper half of a register pair, v(A+1)' becomes undefined.

None.