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Rev 378 Rev 380
Line 55... Line 55...
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           cmp ecx, eax
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           cmp ecx, eax
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           jne .save
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           jne .save
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.copy:
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.copy:
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           shl eax, 8
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           shl eax, 8
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           mov esi, [eax+PROC_BASE+APPDATA.fpu_state]
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           mov esi, [eax+SLOT_BASE+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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           fninit
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           fninit
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.save:
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.save:
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           mov [fpu_owner], eax
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           mov [fpu_owner], eax
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           shl ecx, 8
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           shl ecx, 8
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           mov ecx, [ecx+PROC_BASE+APPDATA.fpu_state]
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           mov ecx, [ecx+SLOT_BASE+APPDATA.fpu_state]
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           bt [cpu_caps], CAPS_SSE
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           bt [cpu_caps], CAPS_SSE
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           jnc .no_SSE
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           jnc .no_SSE
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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, 8
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           mov edi, [eax+PROC_BASE+APPDATA.fpu_state]
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           mov edi, [eax+SLOT_BASE+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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           pop ecx
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           pop ecx
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        cmp ebx, [CURRENT_TASK]
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        cmp ebx, [CURRENT_TASK]
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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, 8
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        mov eax, [ebx+PROC_BASE+APPDATA.fpu_state]
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        mov eax, [ebx+SLOT_BASE+APPDATA.fpu_state]
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        bt [cpu_caps], CAPS_SSE
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        bt [cpu_caps], CAPS_SSE
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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_TASK]
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        mov ebx, [CURRENT_TASK]
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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, 8
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        mov eax, [ebx+PROC_BASE+APPDATA.fpu_state]
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        mov eax, [ebx+SLOT_BASE+APPDATA.fpu_state]
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        fxrstor [eax]
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        fxrstor [eax]
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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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        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_TASK]
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        mov ebx, [CURRENT_TASK]
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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, 8
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        mov eax, [ebx+PROC_BASE+APPDATA.fpu_state]
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        mov eax, [ebx+SLOT_BASE+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
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           mov ebx, [ss:CURRENT_TASK]
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           mov ebx, [ss:CURRENT_TASK]
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           shl ebx, 8
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           shl ebx, 8
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           mov eax, [ss:ebx+PROC_BASE+APPDATA.fpu_handler]
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           mov eax, [ss:ebx+SLOT_BASE+APPDATA.fpu_handler]
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           test eax, eax
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           test eax, eax
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           jz .default
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           jz .default
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           mov ebx, [ss:CURRENT_TASK]
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           mov ebx, [ss:CURRENT_TASK]
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           shl ebx, 8
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           shl ebx, 8
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           mov eax, [ss:ebx+PROC_BASE+APPDATA.sse_handler]
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           mov eax, [ss:ebx+SLOT_BASE+APPDATA.sse_handler]
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           test eax, eax
 233 
           test eax, eax
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           jz .default
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           jz .default
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