relocation and fix up question

[Dmitry <diwil at eis dot ru>]

Fellows,

I am trying to write binutils support for some cpu architecture.
This cpu has a variable instruction size and many addressing modes.

I just whant to know if I understand the things right.

The code
	move.w *symbol1, &symbol2 ; moves word located at symbol1 
				  ; to address pointed by symbol2
resides in memory as
	pc+4:	symbol2		<- addr of symbol2
	pc+2:	symbol1		<- addr of symbol1
	pc:	move.w		<- takes into account addressing mode
(CPU is little endian, base instr size - 2 words)

First of all I parse instruction, extract binary opcode, etc. and then 
put the bin code as follows:

	frag = frag_more(opcode->insn_size);
	where = frag - frag_now->fr_literal;
	bfd_putl16 ((bfd_vma) opcode->binopbase, frag);

Then I have to fixate symbol1 and symbol2:
	
	parse_exp (symbol1, &exp1);
	parse_exp (symbol2, &exp2);

	fix_new_exp (frag_now, where+2, 2, &exp1, false, BFD_RELOC_MYCPU_16);
	fix_new_exp (frag_now, where+4, 2, &exp2, false, BFD_RELOC_MYCPU_16);

Here I am worrying about arguments 2 - where and 3 - length. 
If binary representations of symbol1, symbol2 and move.w do not overlap 
are these values correct?

Thanks in advance
Dimmy.




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