Texas Instruments TMS320C67X/C67X+ DSP manual Addu Add Two Unsigned Integers Without Saturation

ADDU Add Two Unsigned Integers Without Saturation

Example 1	ADDU .L1	A1,A2,A5:A4
Before instruction		1 cycle after instruction

A1	0000	325Ah
A2	FFFF FF12h
A5:A4	xxxx xxxxh

†Unsigned 32-bit integer

‡Unsigned 40-bit (long) integer

12890†A1

4294967058† A2

A5:A4

0000 325Ah

FFFF FF12h

0000 0001h 0000 316Ch

4294979948‡

Example 2			ADDU .L1	A1,A3:A2,A5:A4
	Before instruction					1 cycle after instruction
A1
	0000	325Ah	12890		A1	0000	325Ah
				1099511627538‡
A3:A2	0000	00FFh	FFFF FF12h		A3:A2	0000 00FFh		FFFF FF12h
A5:A4	0000	0000h	0000 0000h	0	A5:A4	0000	0000h	0000 316Ch

†Unsigned 32-bit integer

‡Unsigned 40-bit (long) integer

12652‡

3-64 Instruction Set SPRU733