* far (48bit) pointer addressing
@ 2008-05-13 8:55 Hoffmann, Christian
2008-05-13 13:53 ` Ian Lance Taylor
0 siblings, 1 reply; 2+ messages in thread
From: Hoffmann, Christian @ 2008-05-13 8:55 UTC (permalink / raw)
To: gcc-help
Hi gcc team,
does gcc (for i386 targets) support "far pointer addressing" ?
or is it planned to be added ?
Currently i only found this in the openWatcom compiler.
What i'm thinking of is for example a keyword "far" which makes the declared
object be accessed using an IA32 48 bit far pointer consisting of 16 bit selector
and 32 bit offset. I know that one has to prepare an appropriate descriptor in the
GDT or LDT to make this addressing work.
thanks a lot for your answer.
Mit freundlichen Grüßen/ kind regards
Christian Hoffmann
Siemens Enterprise Communications GmbH & Co. KG
Small Medium Enterprice Software Development Platform
SEN ESY SME MP532
Brauckstr.14
D-58449 Witten
Phone: +49 2302 667 2821
Fax: +49 2302 667 2121
Siemens Enterprise Communications GmbH & Co. KG
Managing Directors: Andreas Bernhardt, Reinhard Benditte,
Gerhard Otterbach, Thomas Zimmermann
Registered offices: Munich
Commercial registry Munich, HRA 88546
WEEE-Reg.-No. DE 27980375
General Partner:
Siemens Enterprise Communications Management GmbH
Registered offices: Munich
Commercial registry: Munich, HRB 163415
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: far (48bit) pointer addressing
2008-05-13 8:55 far (48bit) pointer addressing Hoffmann, Christian
@ 2008-05-13 13:53 ` Ian Lance Taylor
0 siblings, 0 replies; 2+ messages in thread
From: Ian Lance Taylor @ 2008-05-13 13:53 UTC (permalink / raw)
To: Hoffmann, Christian; +Cc: gcc-help
"Hoffmann, Christian" <Christian-Hoffmann@siemens.com> writes:
> does gcc (for i386 targets) support "far pointer addressing" ?
No.
> or is it planned to be added ?
No.
Ian
^ permalink raw reply [flat|nested] 2+ messages in thread
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