ARM Assembler on device
Hi,
does the device emulator supports ARM assembler written i a little asm file, compiled and linked to a normal app.exe written in C/C++?
I don't know i gettin' every time an access violation ( illegal instaruction ). It is fairly simple code:
in header just declaration:
extern
"C"void Test();
in asm file for ARM just:
AREA text, CODE
EXPORT Test
Test
mov r4, #28 ; mov immediate 28 to r4 register
END
Without and with code in the "Test"- function block i getting an exception "illegal instruction".
Thx in advance.
Yes, the emulator supports all of the ARM v4i instruction set. The fact that the code is compiled or assembled not going to be an issue. I will have to do some more investigation, but my bet is that the structure of the code is incorrect when called from C.
Yes you're right. If assemble without any meaningful code inside the asm-file i also get the error like:
AREA text, CODE
EXPORT Test
Test
; do nothing
END
The Problem is that the MSDN isn't really helpful there. The names of the registers are also not right in concerning the names of them like for the FPU-registers.
I had to read use the docs from
www.arm.com .
I think it's the extern "C" declaration.
Bye and in thx advance
Martin
