Atmel AVR User Manual

16-bit Opcode:
(i) 1000 001r rrrr 1000
(ii) 1001 001r rrrr 1001
(iii) 1001 001r rrrr 1010
(iv) 10q0 qq1r rrrr 1qqq
119.2. Status Register (SREG) and Boolean Formula
I T H S V N Z C
– – – – – – – –
Example:
clr r29 ; Clear Y high byte
ldi r28,$60 ; Set Y low byte to $60
st Y+,r0 ; Store r0 in data space loc. $60(Y post inc)
st Y,r1 ; Store r1 in data space loc. $61
ldi r28,$63 ; Set Y low byte to $63
st Y,r2 ; Store r2 in data space loc. $63
st -Y,r3 ; Store r3 in data space loc. $62(Y pre dec)
std Y+2,r4 ; Store r4 in data space loc. $64
Words 1 (2 bytes)
Cycles 2
Cycles XMEGA (i) 1
(ii) 1
(iii) 2
(iv) 2
Cycles Reduced Core tinyAVR (i) 1
(ii) 1
(iii) 2
Atmel AVR Instruction Set Manual [OTHER]
Atmel-0856L-AVR-Instruction-Set-Manual_Other-11/2016
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Atmel AVR Specifications

General

Architecture	8-bit RISC
SRAM	Up to 16 KB
Clock Speed	Up to 20 MHz
Operating Voltage	1.8V to 5.5V
ADC	10-bit ADC
Communication Interfaces	SPI, I2C, USB
Packages	DIP, SOIC, QFN
Special Features	Watchdog Timer
Flash Memory	1KB to 256KB
EEPROM	64B to 4KB