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Rev 8869 Rev 9715
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;                                                              ;;
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;;                                                              ;;
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;; Copyright (C) KolibriOS team 2004-2017. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2004-2022. All rights reserved. ;;
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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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;;                                                              ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision: 8869 $
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$Revision: 9715 $
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        call    save_fpu_context
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        call    save_fpu_context
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        jmp     .exit
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        jmp     .exit
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.save:
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.save:
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        mov     [fpu_owner], esi
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        mov     [fpu_owner], esi
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        shl     ecx, 8
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        shl     ecx, BSF sizeof.APPDATA
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        mov     eax, [ecx+SLOT_BASE+APPDATA.fpu_state]
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        mov     eax, [SLOT_BASE + ecx + APPDATA.fpu_state]
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        call    save_context
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        call    save_context
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; first 512 bytes of XSAVE area have the same format as FXSAVE
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; first 512 bytes of XSAVE area have the same format as FXSAVE
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        shl     esi, 8
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        shl     esi, BSF sizeof.APPDATA
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        mov     esi, [esi+SLOT_BASE+APPDATA.fpu_state]
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        mov     esi, [SLOT_BASE + esi + APPDATA.fpu_state]
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        mov     ecx, 512/4
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        mov     ecx, 512/4
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        cld
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        cld
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        call    save_context
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        call    save_context
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        jmp     .exit
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        jmp     .exit
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.save:
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.save:
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        mov     [fpu_owner], esi
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        mov     [fpu_owner], esi
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        shl     ecx, 8
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        shl     ecx, BSF sizeof.APPDATA
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        mov     eax, [ecx+SLOT_BASE+APPDATA.fpu_state]
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        mov     eax, [SLOT_BASE + ecx + APPDATA.fpu_state]
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        call    save_context
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        call    save_context
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        shl     esi, 8
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        shl     esi, BSF sizeof.APPDATA
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        mov     esi, [esi+SLOT_BASE+APPDATA.fpu_state]
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        mov     esi, [SLOT_BASE + esi + APPDATA.fpu_state]
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        mov     ecx, [xsave_area_size]
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        mov     ecx, [xsave_area_size]
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        add     ecx, 3
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        add     ecx, 3
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        pop     ecx
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        pop     ecx
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        ret
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        ret
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align 4
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align 4
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save_context:
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save_context:
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        bt      [cpu_caps+(CAPS_OSXSAVE/32)*4], CAPS_OSXSAVE mod 32
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        bt      [cpu_caps + (CAPS_OSXSAVE/32)*4], CAPS_OSXSAVE mod 32
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        jnc     save_fpu_context
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        jnc     save_fpu_context
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        push    eax edx
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        push    eax edx
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        mov     ecx, eax
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        mov     ecx, eax
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        mov     eax, [xsave_eax]
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        mov     eax, [xsave_eax]
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        popfd
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        popfd
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        pop     esi
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        pop     esi
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        pop     ecx
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        pop     ecx
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        ret
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        ret
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.copy:
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.copy:
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        shl     eax, 8
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        shl     eax, BSF sizeof.APPDATA
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        mov     edi, [eax+SLOT_BASE+APPDATA.fpu_state]
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        mov     edi, [SLOT_BASE + eax + APPDATA.fpu_state]
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        mov     ecx, 512/4
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        mov     ecx, 512/4
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        cld
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        cld
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        rep movsd
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        rep movsd
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        popfd
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        popfd
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        pop     esi
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        pop     esi
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        mov     eax, [current_slot_idx]
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        mov     eax, [current_slot_idx]
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        cmp     ecx, eax
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        cmp     ecx, eax
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        jne     .copy
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        jne     .copy
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        clts
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        clts
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        bt      [cpu_caps+(CAPS_OSXSAVE/32)*4], CAPS_OSXSAVE mod 32
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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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        jnc     .no_xsave
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        push    edx
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        push    edx
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        mov     eax, [xsave_eax]
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        mov     eax, [xsave_eax]
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        mov     edx, [xsave_edx]
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        mov     edx, [xsave_edx]
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        popfd
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        popfd
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        pop     esi
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        pop     esi
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        pop     ecx
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        pop     ecx
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        ret
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        ret
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.copy:
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.copy:
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        shl     eax, 8
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        shl     eax, BSF sizeof.APPDATA
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        mov     edi, [eax+SLOT_BASE+APPDATA.fpu_state]
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        mov     edi, [SLOT_BASE + eax + APPDATA.fpu_state]
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        mov     ecx, [xsave_area_size]
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        mov     ecx, [xsave_area_size]
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        add     ecx, 3
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        add     ecx, 3
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        shr     ecx, 2
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        shr     ecx, 2
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        cld
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        cld
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        rep movsd
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        rep movsd
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        mov     ebx, [fpu_owner]
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        mov     ebx, [fpu_owner]
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        cmp     ebx, [current_slot_idx]
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        cmp     ebx, [current_slot_idx]
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        je      .exit
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        je      .exit
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        shl     ebx, 8
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        shl     ebx, BSF sizeof.APPDATA
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        mov     eax, [ebx+SLOT_BASE+APPDATA.fpu_state]
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        mov     eax, [SLOT_BASE + ebx + APPDATA.fpu_state]
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        bt      [cpu_caps+(CAPS_OSXSAVE/32)*4], CAPS_OSXSAVE mod 32
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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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        jnc     .no_xsave
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        mov     ecx, eax
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        mov     ecx, eax
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        mov     eax, [xsave_eax]
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        mov     eax, [xsave_eax]
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        mov     edx, [xsave_edx]
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        mov     edx, [xsave_edx]
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        xsave   [ecx]
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        xsave   [ecx]
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        mov     ebx, [current_slot_idx]
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        mov     ebx, [current_slot_idx]
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        mov     [fpu_owner], ebx
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        mov     [fpu_owner], ebx
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        shl     ebx, 8
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        shl     ebx, BSF sizeof.APPDATA
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        mov     ecx, [ebx+SLOT_BASE+APPDATA.fpu_state]
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        mov     ecx, [SLOT_BASE + ebx + APPDATA.fpu_state]
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        xrstor  [ecx]
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        xrstor  [ecx]
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.exit:
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.exit:
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        restore_ring3_context
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        restore_ring3_context
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        jnc     .no_SSE
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        jnc     .no_SSE
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        fxsave  [eax]
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        fxsave  [eax]
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        mov     ebx, [current_slot_idx]
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        mov     ebx, [current_slot_idx]
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        mov     [fpu_owner], ebx
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        mov     [fpu_owner], ebx
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        shl     ebx, 8
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        shl     ebx, BSF sizeof.APPDATA
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        mov     eax, [ebx+SLOT_BASE+APPDATA.fpu_state]
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        mov     eax, [SLOT_BASE + ebx + APPDATA.fpu_state]
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        fxrstor [eax]
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        fxrstor [eax]
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        restore_ring3_context
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        restore_ring3_context
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        iret
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        iret
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.no_SSE:
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.no_SSE:
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        fnsave  [eax]
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        fnsave  [eax]
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        mov     ebx, [current_slot_idx]
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        mov     ebx, [current_slot_idx]
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        mov     [fpu_owner], ebx
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        mov     [fpu_owner], ebx
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        shl     ebx, 8
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        shl     ebx, BSF sizeof.APPDATA
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        mov     eax, [ebx+SLOT_BASE+APPDATA.fpu_state]
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        mov     eax, [SLOT_BASE + ebx + APPDATA.fpu_state]
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        frstor  [eax]
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        frstor  [eax]
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        restore_ring3_context
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        restore_ring3_context