getting C function adresses in ASM
Posted: Sat Mar 15, 2003 11:19 pm
I'm trying to get the offset of a C function so I can fill out the IDTR all right, but I can't seem to get there. The Xsism code (using C) just used (dword)nameofhandler to get the offset so I thought something along the lines of:
And, of course (or I wouldn't be writing this) it didn't work. NASM doesn't like the mov statement (invalid combo of opcode and operand) but I'm not quite sure how to cast _testint as a dword or if I'm even on the right track. Can someone give me a nudge in the right direction?
Code: Select all
[extern _testint] ; function defined in C
offset dd 0
...
mov dword offset, _testint
