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Rev 6079 Rev 7276
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;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
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;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa      ;;
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;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa      ;;
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;; Distributed under terms of the GNU General Public License    ;;
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;; Distributed under terms of the GNU General Public License    ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision: 6079 $
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$Revision: 7276 $
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        mov     fs, dx
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        mov     fs, dx
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; set gs selector unconditionally
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; set gs selector unconditionally
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        Mov     ax, graph_data
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        Mov     ax, graph_data
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        Mov     gs, ax
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        ; TS flag is not triggered by AVX* instructions, therefore
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        ; we have to xsave/xrstor SIMD registers each task change
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        bt      [cpu_caps+(CAPS_OSXSAVE/32)*4], CAPS_OSXSAVE mod 32
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        jnc     .no_xsave
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        mov     ecx, [esi+APPDATA.fpu_state]
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        mov     eax, [xsave_eax]
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        mov     edx, [xsave_edx]
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        xsave   [ecx]
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        mov     ecx, [CURRENT_TASK]
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        mov     [fpu_owner], ecx
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        mov     ecx, [current_slot]
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        mov     ecx, [ecx+APPDATA.fpu_state]
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        xrstor  [ecx]
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        Mov     gs, ax
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  .no_xsave:
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      ; set CR0.TS
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      ; set CR0.TS
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        cmp     bh, byte[fpu_owner] ;bh == incoming task (new)
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        cmp     bh, byte[fpu_owner] ;bh == incoming task (new)
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        clts                        ;clear a task switch flag
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        clts                        ;clear a task switch flag
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        je      @f
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        je      @f