Reti instruction in 8051

 

 

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The RETI instruction informs the processor that this interrupt routine is no longer in progress, then pops the top two bytes from the stack and reloads the Execution of the interrupted program continues from where it left off. It's that first line that's important here. Until that RETI instruction is executed THE 8051 INSTRUCTION SET All commands in alphabetic order: ACALL addr11 DIV AB LJMP addr16 RETI ADD A,<src DJNZ <byte,<rel8 MOV <dest,<src RL A 8051 Instruction Set Video Tutorials. This video mainly covers different types of instructions supported in 8051.These instructions are ASCII chart. 8051 Instruction Table. 8-segment editor. Other media. GIT repository. 8051 Instructions in numerical Order. Cpl jmp MOV reti xchd. Da JNB movc RL xrl. Table 4.11: Directives. Intcont: MOV C,acc.6 MOV acc.7,C setb acc.6 MOV P3,a POP acc POP psw. MOV IE,#88H ; enable all&T1 reti. In 8051, there is no instruction like MOVR5, R7. But we can get the same result by using this instruction MOV R5, 07H, or by using MOV 05H, R7. But this two instruction will work when the selected register bank is RB0. 8051 How to use Assembly. This section will lead you through the basics of programming in 8051 The 8051 can also do multiplication and division, both of which are the only two instructions to use the B register. 2. The program counter is changed to that address. RET. RETI - Return From Interrupt. CALL Instruction in 8051 Microcontroller. The call instruction is used to call a subroutine. Subroutines are often used to perform tasks that need to be performed RETI ;return from ISR ;-MAIN program for initialization. ORG 30H MAIN: SETB TCON.2 ;make INT1 edge-triggered int. MOV IE,#10000100B 4. INSTRUCTIONS of Subroutine in 8051 Microcontroller ACALL LCALL RET RETI. 5. ACALL INSTUCTION Function: Absolute Call Within 2K Block 13. RETI instruction Function: Return from Interrupt Syntax: RETI Description:The RETI instruction is used to end an interrupt service routine. Atmel 8051 Microcontrollers Hardware Manual. The 8051 Instruction Set. Note that Boolean operations can be performed on any byte in the internal Data Memory space without going through the Execution Time @ 12MHz (µs). JMP addr JMP @A + DPTR. CALL addr RET RETI NOP. The assembly level instructions include: data transfer instructions, arithmetic instructions, logical instructions, program control instructions, and some special instructions such as the rotate instructions. Data Transfer Many computer operations are concerned with moving data from one

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