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> OS Construction > Asserting the #A20 Gate. |
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Hayden 14 Mar 2007, 05:15
A20GATE.ASM
 2 passes, 96 bytes
Attempts to enable the #A20 line for access to the HMA from realmode code Created by : Hayden McKay - build (j)54177 Note: * [BX] [CX] will be destroyed * [AL] is non-zero on success Thanks to Ralf Brown's port list reference ports.a and other various recorces on the internet! note: not many PC's support HMA acces for hardware. ie: hardware will probably fail if you use ffffh:10h - ffffh:ffffh for device buffers. I've read someware that you can test for hardware HMA suppot though.
_________________ New User.. Hayden McKay. Last edited by Hayden on 17 Mar 2007, 17:57; edited 1 time in total |
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14 Mar 2007, 05:15 |
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tantrikwizard 14 Mar 2007, 14:15
Come on Hayden, use a zip file already.
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14 Mar 2007, 14:15 |
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HyperVista 14 Mar 2007, 14:29
I've used zip exclusively for many, many years, but have to say that 7zip is absoultely outstanding. Greetz to Madis731 for turning me on to 7zip during the fasm meeting in Krakow. I strongly recommend giving it a try. It supports zip, rar, tar, cab, arj, lzh. chm, gzip, ... etc.
http://www.7-zip.org/ |
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14 Mar 2007, 14:29 |
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rugxulo 16 Mar 2007, 00:54
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16 Mar 2007, 00:54 |
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