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 Post subject: In which direction to dig about the entrances and exits?
PostPosted: Sun Mar 04, 2018 12:42 pm 
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Joined: Thu Mar 01, 2018 10:09 am
Posts: 16
Function Code: 0x4F00
Input: AX = 0x4F00
ES: DI
Output: AX = 0x004F

Please help with the implementation, or tell me which way to dig in order to program something higher.


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 Post subject: Re: In which direction to dig about the entrances and exits?
PostPosted: Sun Mar 04, 2018 8:05 pm 
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Joined: Sat Jan 15, 2005 12:00 am
Posts: 8561
Location: At his keyboard!
Hi,

grenders22 wrote:
Function Code: 0x4F00
Input: AX = 0x4F00
ES: DI
Output: AX = 0x004F

Please help with the implementation, or tell me which way to dig in order to program something higher.


May we make random assumptions; like maybe you're talking about this BIOS function (and not a Linux system call or anything else), and that the function call worked (output ah = 0x00 = "success"), and that you're implementing code the uses VBE (and not implementing your own video card ROM)?

If we can make these random assumptions; I still don't know what you need help with.


Cheers,

Brendan

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