Stack of 8051 Microcontroller Explained: PUSH and POP Instructions, Working, and Program

[@EngineeringFunda]

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[@veerabhadrayyakalacharanti4051]

i am following ur channel for this course and loved this video sir

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[@mathhfov2272]

Thank you so much professor

[@EngineeringFunda]

Your Appreciations, care and share matters a lot to me. #EnginneringLove. All the subjects playlist of Engineering Funda is available in comment section. Share it with your friends to support us. Your positive comments motivates me and person like me get boosted by my students feedback. Thanks and welcome 🙏

[@Nick-ui9dr]

7:34 So this is what they talking about in Intel manuals... that earlier processor updates SP before operation... LOL ... Usually now R1 i.e. 11H will be pushed at address 2F then SP will be decremented appropriately according to size of data (register) pushed. ....that's interesting anyway. 😃 And seems like SP behaving negatively here... I mean going up on push. Now a days it goes down on pushes and vice versa.

[@hussainsharif6023]

Defaultly(when power is given) on PUSH instruction 1st item of stack address will be 08H in RAM

[@uvaanstree854]

Can we use POP R1 instead of R3?

[@r.dineshkumar3984]

Yes

[@chinni949]

sir the data in stack will remain in it after pop instruction is executed ?

[@EngineeringFunda]

Yes

[@markus4334]

When i write PUSH R1, it show error, and code that work is PUSH 3 , without "R", same for POP.

[@EngineeringFunda]

It is Compiler query dear

[@markus4334]

ok@@EngineeringFunda

[@eren_n3]

❤

[@EngineeringFunda]

Your Appreciations, care and share matters a lot to me. #EnginneringLove. All the subjects playlist of Engineering Funda is available in comment section. Share it with your friends to support us. Your positive comments motivates me and person like me get boosted by my students feedback. Thanks and welcome 🙏

[@podclipcartel]

sir, please enable auto-generated captions

[@EngineeringFunda]

Already done dear

[@souravsen9760]

At 9:10 what happens if we do another POP R5?

[@RamanKumar-sp9bz]

the garbage value stored at 2FH location will be stored in R5 (i suppose)

[@BaidikSarcar]

​@@RamanKumar-sp9bz and after that, will SP decrement to 2EH address?

[@BaidikSarcar]

​@@RamanKumar-sp9bzand I have another doubt. In the program, shouldn't 2FH be without hashtag as it is the new RAM address location and not a data?

[@somilagrawal8172]

​@@BaidikSarcar No, Bcz we are telling SP the address directly (With Hashtag) not telling it to go to the address, retrive the value and store it in SP (Without Hashtag). i.e #2FH means value 2FH is stored, but only 2FH means that it should store the data from memory location 2FH.