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Annotation of quake1/sys_nexa.s, revision 1.1.1.1

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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