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Hello, I have the following problem: My 16 processor does not have a multiply. So I wrote an emulator-function which does repeated adds, named __mulqi3. QI because 16bit=1 storage unit. int is also 16 bit. (QI) The compiler is supposed to pass args in "r0", "r1" to "r4". The rest via stack. But when I do int a=12; int b=34; c=a*b; the compiler puts 12 in "r10", 34 in "r6" and expects the return value in "r3", instead of "r0". And, it calles __mulsi3. So it is expecting 4-word values, instead of 1word values (remember, word=16bit). How can I instruct the compiler to use __mulqi3 with exactly 1 word (=1 register) wide arguments? Ivo -- --------------------+--------------------------------+-+ +---+ | IVO JANSSEN | ivo@ricardis.tudelft.nl | | | | | Ricardishof 1/428 | janssen@cardit.et.tudelft.nl | | |-+ | | 2614 JE Delft | elektron.et.tudelft.nl/~ivo/ | +->-| (|) | the Netherlands | Dept of Electrical Engineering | |-+ | | +31-15-2855973 | Delft University of Technology | | | +-------------------+--------------------------------+ --- --- Do you want to win $1000 by using you computer's idle time AND prove that 56-bit encryption isn't _that_ safe? Try http://rc5.distributed.net/