forked from KolibriOS/kolibrios
118 lines
2.2 KiB
PHP
118 lines
2.2 KiB
PHP
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reg_eip equ ebp+4
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reg_cs equ ebp+8
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reg_eflags equ ebp+12
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reg_esp equ ebp+16
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reg_ss equ ebp+20
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;fpu_ctrl equ ebp-28
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align 4
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except_16:
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push ebp
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mov ebp, esp
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; sub esp, 28
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push eax
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push ebx
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push ecx
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push edx
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mov ebx, [ss:CURRENT_TASK]
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shl ebx, 8
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mov eax, [ss:ebx+PROC_BASE+APPDATA.fpu_handler]
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test eax, eax
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jz .default
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mov ecx, [reg_eip]
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mov edx, [reg_esp]
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sub edx, 4
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mov [ss:edx+new_app_base], ecx
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mov [reg_esp], edx
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mov dword [reg_eip], eax
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pop edx
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pop ecx
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pop ebx
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pop eax
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leave
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iretd
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.default:
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pop edx
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pop ecx
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pop ebx
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pop eax
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leave
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save_ring3_context ;debugger support
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mov bl, 16
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jmp exc_c
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; fnstenv [fpu_ctrl]
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; fnclex
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; or word [fpu_ctrl], 0111111b
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; fldenv [fpu_ctrl]
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; pop edx
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; pop ecx
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; pop ebx
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; pop eax
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; leave
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; iretd
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align 16
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except_19:
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push ebp
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mov ebp, esp
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push eax
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push ebx
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push ecx
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push edx
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mov ebx, [ss:CURRENT_TASK]
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shl ebx, 8
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mov eax, [ss:ebx+PROC_BASE+APPDATA.sse_handler]
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test eax, eax
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jz .default
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mov ecx, [reg_eip]
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mov edx, [reg_esp]
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sub edx, 4
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mov [ss:edx+new_app_base], ecx
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mov [reg_esp], edx
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mov dword [reg_eip], eax
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pop edx
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pop ecx
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pop ebx
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pop eax
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leave
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iretd
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.default:
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pop edx
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pop ecx
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pop ebx
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pop eax
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leave
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save_ring3_context ;debugger support
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mov bl, 19
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jmp exc_c
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restore reg_eip
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restore reg_cs
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restore reg_eflags
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restore reg_esp
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restore reg_ss
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;restore fpu_ctrl
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