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 Post subject: How would I get user input in Assembly?
PostPosted: Thu Jan 12, 2017 3:53 am 
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Hey guys. I want to get user input from Assembly so I can compare the string.

What function and interrupt would I use?

I know the CMP instruction but how would I compare the string for the function and interrupt I would use?

Can you tell me what instructions I may need? I want more than 5 characters as well if that's possible please. I am trying to make a shell.

Thanks
John


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 Post subject: Re: How would I get user input in Assembly?
PostPosted: Thu Jan 12, 2017 4:06 am 
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Duplicate post?


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 Post subject: Re: How would I get user input in Assembly?
PostPosted: Thu Jan 12, 2017 4:06 am 
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TheDev100 wrote:
What function and interrupt would I use?

If you want BIOS functions, check RBIL. You probably want INT 0x16 AH=0x00.

TheDev100 wrote:
I know the CMP instruction but how would I compare the string for the function and interrupt I would use?

There are no BIOS functions for string comparisons. You'll have to write that yourself.

TheDev100 wrote:
Can you tell me what instructions I may need?

Probably things like MOV, CMP, and maybe REP CMPSB.


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