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Rev 221 Rev 357
Line 4... Line 4...
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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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 - 
 
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           stdcall kernel_alloc, 512*256
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           mov [fpu_data], eax
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           mov ebx, cr4
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           mov ebx, cr4
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           mov ecx, cr0
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           mov ecx, cr0
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           or ebx, CR4_OSFXSR+CR4_OSXMMEXPT
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           or ebx, CR4_OSFXSR+CR4_OSXMMEXPT
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           xorps xmm4, xmm4
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           xorps xmm4, xmm4
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           xorps xmm5, xmm5
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           xorps xmm5, xmm5
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           xorps xmm6, xmm6
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           xorps xmm6, xmm6
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           xorps xmm7, xmm7
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           xorps xmm7, xmm7
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           fxsave [eax]
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           fxsave [fpu_data]  ;[eax]
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           ret
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           ret
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.no_SSE:
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.no_SSE:
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           stdcall kernel_alloc, 112*256
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           mov ecx, cr0
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           mov [fpu_data], eax
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           mov ecx, cr0
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           and ecx, not CR0_EM
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           and ecx, not CR0_EM
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           or ecx, CR0_MP+CR0_NE
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           or ecx, CR0_MP+CR0_NE
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           mov cr0, ecx
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           mov cr0, ecx
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           fnsave [eax]
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           fnsave [fpu_data]
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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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proc fpu_save
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proc fpu_save
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           clts
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           clts
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iglobal
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iglobal
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  fpu_owner dd 1
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  fpu_owner dd 1
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 endg
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 endg
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reg_eip       equ ebp+4
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reg_eip       equ ebp+4
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reg_cs        equ ebp+8
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reg_cs        equ ebp+8
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reg_eflags    equ ebp+12
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reg_eflags    equ ebp+12
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reg_esp       equ ebp+16
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reg_esp       equ ebp+16