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In which direction to dig about the entrances and exits?

Posted: Sun Mar 04, 2018 12:42 pm
by grenders22
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.

Re: In which direction to dig about the entrances and exits?

Posted: Sun Mar 04, 2018 8:05 pm
by Brendan
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