cotan387.asm

来自「开放源码的编译器open watcom 1.6.0版的源代码」· 汇编 代码 · 共 62 行

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ifdef __386__
 .387
else
 .8087
endif
include mdef.inc
include struct.inc
include math387.inc

        extern_chipbug
        xref            __8087  ; indicate that NDP instructions are present

        modstart        cotan387
;
;       cotan(x) = 1 / tan(x)
;

        public  IF@DCOTAN       ; double cotan( double x )
        public  IF@COTAN        ; double cotan( double x )
        defp    IF@DCOTAN
        defp    IF@COTAN
        do_fptan                ; calc. tan(x)
        do_fdivrp       1,0     ; calc. 1 / tan(x)
        ret                     ; return
        endproc IF@COTAN
        endproc IF@DCOTAN

        endmod
        end