c16div7.asm

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;
; C16DIV7       : double precision complex divide
;

.8087

include struct.inc
include mdef.inc

        modstart        c16div7

        xref            CplxDivide


        xdefp   RT@C16DIV
defp    RT@C16DIV
        push    BP                      ; save registers
        sub     SP,20                   ; allocate save area for fp registers
        mov     BP,SP                   ; set up base register
        fxch    st(4)                   ; save floating-point registers
        fstp    tbyte ptr 10[BP]        ; ...
        fxch    st(4)                   ; ...
        fstp    tbyte ptr [BP]          ; ...
        call    CplxDivide              ; do divide
        fstp    qword ptr [SI]          ; return complex result
        fstp    qword ptr 4[SI]         ; ...
        fld     tbyte ptr [BP]          ; restore floating-point registers
        fld     tbyte ptr 10[BP]        ; ...
        add     SP,20                   ; clean up stack
        pop     BP                      ; restore registers
        ret
endproc RT@C16DIV

        endmod
        end