ARM Cross-Assembler

[Bahadir Balban]

Sorry, I think I could have explained it better. I will give an example, the 
code below is written with and can be read by ADS.
There are things like AREA, EXPORT or labels, aliases such as ULCON etc. 
that don't belong to the instruction set. Can GNU assembler read  these, or 
instructions only? If instructions only, the point I am out of knowledge is 
how EXPORT and IMPORT could be used. In other words, how do you link 
assembly and c files without these, if GAS can only read instructions but 
not EXPORT,AREA, or comments, labels?

I had an assembly file written in this manner, and using GNU as (arm-elf-as) 
I got errors like, "error: bad instruction ULCON EQU 0". Maybe I am not 
using GAS the right way?

Many thanks.
Bahadir

		AREA asmcode, CODE, READONLY
ULCON EQU 0
UCON EQU 4
USTAT EQU 8
UTXBUF EQU 12
EXPORT asm_put
asm_put				; asm_put starts here
start
	LDR r4, [r0,#USTAT]	; comment
	TST r4,#TXBRE		; comment
	BEQ start		; comment


----Original Message Follows----
From: Yves Rutschle <y.rutschle@indigovision.com>
To: Bahadir Balban <bahbalban@hotmail.com>

Most of all, your questions are not very precise. Yes, you
can do mixed code: have both assembly and C in different
files in a same project that you then link together. You can
also put inline assembly in C.

There is one thing you cannot do: using assembly written for
ADS with Gnu as, as they have different directive syntax. It
is the general opinion of everybody on this list that it
should be feasible (and not very hard) to translate from one
to the other, but I don't know that anyone actually did it.

HTH,
/Y

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