[NTLK] Developers: Calling Arbitrary ROM Functions

From: Jake Bordens (newton_at_allaboutjake.com)
Date: Thu Aug 18 2005 - 16:31:33 PDT

• Next message: John Hay: "[NTLK] Compact Flash Transfers to 2100 from Mac Laptop"
• Previous message: Josh O'Brien: "[NTLK] compact flash advice"
• Next in thread: Paul Guyot: "Re: [NTLK] Developers: Calling Arbitrary ROM Functions"
• Reply: Paul Guyot: "Re: [NTLK] Developers: Calling Arbitrary ROM Functions"
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] [ attachment ]
• Mail actions: [ respond to this message ] [ mail a new topic ]

Does anyone know how to call an arbitrary function in ROM? For
example, there is a function at 0x12345 and I know its function
prototype. How might I go about calling it from C++ code.

The compiler is more restrictive than I'm used to. Normally I'd just
cast a constant long value to a function pointer. However, the
Newton C++ tools don't apparently allow this.

Alternatively, Is there a way to tell the Linker where to find a
function by its memory location?

Thanks for any insight.

Jake

-- 
This is the NewtonTalk list - http://www.newtontalk.net/ for all inquiries
Official Newton FAQ: http://www.chuma.org/newton/faq/
WikiWikiNewt for all kinds of articles: http://tools.unna.org/wikiwikinewt/

• Next message: John Hay: "[NTLK] Compact Flash Transfers to 2100 from Mac Laptop"
• Previous message: Josh O'Brien: "[NTLK] compact flash advice"
• Next in thread: Paul Guyot: "Re: [NTLK] Developers: Calling Arbitrary ROM Functions"
• Reply: Paul Guyot: "Re: [NTLK] Developers: Calling Arbitrary ROM Functions"
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] [ attachment ]
• Mail actions: [ respond to this message ] [ mail a new topic ]

This archive was generated by hypermail 2.1.5 : Thu Aug 18 2005 - 18:30:01 PDT