Trouble with inline void function using asm

[Jeff Hammond]

Hi,

I am trying to use the following inline function on my compiler.

inline void write_altmem(register short data, register int addr)
{
    asm("SALT   r%0,r%1,0  ; write_altmem" 
                            : "r"(data) : "r"(addr) );
}

I get the error message:
memaccess.c:11: output operand constraint lacks `='

I didn't think that I would need a '=' since there are no output
variables.  When I put an '=' in the first argument there are
no compiler errors but the compiler decides that this function
doesn't do anything and optimizes it out.

Any help with this will be appreciated.

Jeff




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