64-bit long mode compatability with 32-bit instructions-GAS (Developers)
Alex knows this stuff in and out.
I guess you could consult the Intel developers in this field.
By the way Japheth made a real nice example how to switch all the way to long mode and back:
http://www.japheth.de/JWasm/Dos64.html
Complete thread:
- 64-bit long mode compatability with 32-bit instructions-GAS - RayeR, 22.01.2014, 23:44 (Developers)
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- 64-bit long mode compatability with 32-bit instructions-GAS - Rugxulo, 23.01.2014, 01:10
- 64-bit long mode compatability with 32-bit instructions-GAS - Oso2k, 23.01.2014, 01:34
- 64-bit long mode compatability with 32-bit instructions-GAS - RayeR, 23.01.2014, 03:03
- 64-bit long mode compatability with 32-bit instructions-GAS - alexfru, 23.01.2014, 08:34
- 64-bit long mode compatability with 32-bit instructions-GAS - georgpotthast, 23.01.2014, 20:16
- 64-bit long mode compatability with 32-bit instructions-GAS - alexfru, 23.01.2014, 08:34
- 64-bit long mode compatability with 32-bit instructions-GAS - marcov, 23.01.2014, 21:57
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