ADR

Form PC-relative address

This instruction adds an immediate value to the PC value to form a PC-relative address, and writes the result to the destination register.

Encoding: Literal

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
0			1	0	0	0	0
op	immlo							immhi																			Rd

ADR <Xd>, <label>

Decoding algorithm

constant integer d = UInt(Rd);
constant bits(64) imm = SignExtend(immhi:immlo, 64);

Operation

X[d, 64] = PC64 + imm;

Explanations

<Xd>: Is the 64-bit name of the general-purpose destination register, encoded in the "Rd" field.
<label>: Is the program label whose address is to be calculated. Its offset from the address of this instruction, in the range +/-1MB, is encoded in "immhi:immlo".