[Icc-avr] Reading fuses on Mega168

[Ian]

Hi Johan,

I see your point so I changed the code thus:

;   dbg[0] = readfusesbyte(0x57,0x0001);
	ldi R18,1
	ldi R19,0
	ldi R16,87
	ldi R17,0
	xcall _readfusesbyte
	sts _dbg,R16
	.dbline 27
; 		
;   // Read high fuses bits
;   dbg[2] = readfusesbyte(SPMCSR,0x0003);
	ldi R18,3
	ldi R19,0
	in R16,0x37
	clr R17
	xcall _readfusesbyte
	sts _dbg+2,R16
	.dbline 30

Still the same problem, the first example uses ldi instructions to load  
R16/17 with 87
whereas the second example uses in instruction to load 0x37 into R16 and  
clrs R17.

The actual definition of SPMSCR is

#define SPMCSR	(*(volatile unsigned char *)0x57)

which for some strange reason the compiler translates to 0x37.

Regard,

Ian James

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