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Annotation of quake1/sys_nexa.s, revision 1.1

1.1     ! root        1: //
        !             2: // mathnext.s
        !             3: // NextSTEP x86 assembly-language math routines.
        !             4: 
        !             5: #include "asm_i386.h"
        !             6: #include "quakeasm.h"
        !             7: 
        !             8: #if id386
        !             9: 
        !            10:        .data
        !            11: 
        !            12:        .align  4
        !            13: 
        !            14: .globl ceil_cw, single_cw, full_cw, cw
        !            15: ceil_cw:       .long   0
        !            16: single_cw:     .long   0
        !            17: full_cw:       .long   0
        !            18: cw:                    .long   0
        !            19: 
        !            20:        .text
        !            21: 
        !            22: .globl C(Sys_DoSetFPCW)
        !            23: C(Sys_DoSetFPCW):
        !            24:        fnstcw  cw
        !            25:        movl    cw,%eax
        !            26:        movl    %eax,full_cw
        !            27: 
        !            28:        andb    $0xF3,%ah
        !            29:        orb             $0x0C,%ah       // chop mode
        !            30:        movl    %eax,single_cw
        !            31: 
        !            32:        andb    $0xF3,%ah
        !            33:        orb             $0x08,%ah       // ceil mode
        !            34:        movl    %eax,ceil_cw
        !            35: 
        !            36:        ret
        !            37: 
        !            38: .globl C(Sys_LowFPPrecision)
        !            39: C(Sys_LowFPPrecision):
        !            40:        fldcw   single_cw
        !            41: 
        !            42:        ret
        !            43: 
        !            44: .globl C(Sys_HighFPPrecision)
        !            45: C(Sys_HighFPPrecision):
        !            46:        fldcw   full_cw
        !            47: 
        !            48:        ret
        !            49: 
        !            50: #endif // id386
        !            51: 

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