Atmel microcontroller instruction set

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The Atmel AVR instruction set is the machine language for the Atmel AVR, a modified Harvard architecture 8-bit RISC single chip microcontroller which was developed by Atmel in 1996. The AVR was one of the first microcontroller families to use on-chip flash memory for program storage. AVR Instruction Set. 0856D–AVR–08/02. The Program and Data Addressing Modes. The AVR Enhanced RISC microcontroller supports powerful and efficient addressing modes for access to the Program memory (Flash) and Data memory (SRAM, Register file, I/O Memory, and Extended I/O Memory). This section describes. Is there an updated instruction set document lurking around the Atmel site that I just can't find? A document that contains the new xmega opcodes. Appendix A: Summary of Atmel AVR. Instruction Set. Mnemonics. Operands. Operation. Affected flags. #Clocks. #Clocks XMega. Arithmetic and Logic Instructions. ADD. Rd, Rr. Rd d Rd + Rr. Z,C,N,V,S,H. 1. ADC. Rd, Rr. Rd d Rd + Rr + C. Z,C,N,V,S,H. 1. ADIW(1). Rd, K. Rd+1:Rd d Rd+1:Rd + k. Z,C,N,V,S. 2. SUB. Rd, Rr. Atmel 8051 Microcontrollers Hardware. 1. 0509C–8051–07/06. Section 1. 8051 Microcontroller Instruction Set. For interrupt response time information, refer to the hardware description chapter. Note: 1. Operations on SFR byte address 208 or bit addresses 209-215 (that is, the PSW or bits in the PSW) also affect flag settings Microcontroller Instruction Set. For interrupt response time information, refer to the hardware description chapter. Note: 1. Operations on SFR byte address 208 or bit addresses 209-215 (that is, the PSW or bits in the PSW) also affect flag settings. Instructions that Affect Flag Settings. (1). Instruction. Flag. Instruction. Flag. C. The Atmel AVR instruction set is the machine language for the Atmel AVR, a modified Harvard architecture 8-bit RISC single chip microcontroller which was developed by Atmel in 1996. The AVR was one of the first microcontroller families to use on-chip flash memory for program storage. ATMELAVRMicroprocessors by. Gerhard Schmidt www.avrasmtutorial.net. May 2016. History: Corrected a calculation error in May 2016. Added page on assembler concept in February 2011. Added chapter on code structures in April 2009. Additional corrections and updates as of January 2008. Corrected version as Notes: 1. Not all instructions are available in all devices. Refer to the device specific instruction summary. 2. Cycle times for data memory accesses assume internal memory accesses, and are not valid for accesses via the external. RAM interface. For LD, ST, LDS, STS, PUSH, POP, add one cycle plus one cycle for each wait