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asm c variable to a assembler register

hi i start a new try.
i am looking for a solution that uVision4 accept to put Variables(Parameters) of c-Code in to Asssembler Registers.

A reference to the "C166 User's Guide - Reference ASM" helped my not because this(my) problem isnot treated!

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_inline int vf_control( int offset, int slew, int anglespeed)
{
        int retvalue;

#pragma asm     ( @w1=offset, @w2=slew, @w3=anglespeed, @4,@5 )


        mov     MCW,#0600H

        mov     @5,ZEROS

        CoMUL   @w2,@w3

        CoSHL   #8

        CoADD   @5, @w1

        CoSTORE @4,MAS

#pragma endasm (retvalue = @4 )
        return retvalue;
}

Parents

0 hans mueller over 14 years ago in reply to Gp F

A small problem ;-) i hope so...

CoSTORE [@w4],MAS

transform to

CoSTORE [rw4],MAS

don't work, Keil uVision4 don't know this syntax "rw4" for a word regiester.

_inline int inv_park_trans(int i_d,int i_q,int phi,int *o_b)
{
int retvalue;

# pragma asm(@w1 = i_d,@w2 = i_q,@w3 = phi, @w4 = o_b , @5, @7, @9, @8)

        mov     @7,MCW
        mov     MCW,#0600h
    shr     @w3,#6
    shl     @w3,#1
    EXTS    #SEG (_sincostab),#2
    mov     @9,[@w3 + #SOF(_sincostab+512)]
    mov     @8,[@w3 + #SOF(_sincostab)]
    CoMUL   @w1,@9
    CoMAC-  @w2,@8
        CoASHR  #2
    CoSTORE @5,MAS
    CoMUL   @w1,@8
    CoMAC   @w2,@9
        CoASHR  #2
    CoSTORE     [@w4],MAS
        mov     MCW,@7

#pragma endasm(retvalue = @5 )

return retvalue;

}

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