2ADDU, 4ADDU, 8ADDU and 16ADDU

Name:

2ADDU $X,$Y,$Z	2ADDU $X,$Y,Z
4ADDU $X,$Y,$Z	4ADDU $X,$Y,Z
8ADDU $X,$Y,$Z	8ADDU $X,$Y,Z
16ADDU $X,$Y,$Z	16ADDU $X,$Y,Z

Specification:

u($X) ← u($Y) × s + u($Z) or
u($X) ← u($Y) × s + u(Z)

were s = 2, 4, 8 or 16, depending on the instruction.

Timing:

sADDU: 1υ

Description:

The instructions sADDU are handy for address calculations with arrays of elements of size 2, 4, 8 or 16 byte.

2ADDU: "times 2 and add unsigned". The sum (2$Y + $Z) mod 2⁶⁴ or (2$Y + Z) mod 2⁶⁴ is placed into register $X.

4ADDU: "times 4 and add unsigned". The sum (4$Y + $Z) mod 2⁶⁴ or (4$Y + Z) mod 2⁶⁴ is placed into register $X.

8ADDU: "times 8 and add unsigned". The sum (8$Y + $Z) mod 2⁶⁴ or (8$Y + Z) mod 2⁶⁴ is placed into register $X.

16ADDU: "times 16 and add unsigned". The sum (16$Y + $Z) mod 2⁶⁴ or (16$Y + Z) mod 2⁶⁴ is placed into register $X.

See also:

ADDU and LDA.

2ADDU:	"times 2 and add unsigned". The sum (2$Y + $Z) mod 2⁶⁴ or (2$Y + Z) mod 2⁶⁴ is placed into register $X.
4ADDU:	"times 4 and add unsigned". The sum (4$Y + $Z) mod 2⁶⁴ or (4$Y + Z) mod 2⁶⁴ is placed into register $X.
8ADDU:	"times 8 and add unsigned". The sum (8$Y + $Z) mod 2⁶⁴ or (8$Y + Z) mod 2⁶⁴ is placed into register $X.
16ADDU:	"times 16 and add unsigned". The sum (16$Y + $Z) mod 2⁶⁴ or (16$Y + Z) mod 2⁶⁴ is placed into register $X.