WebSVN – Kolibri OS – Blame – /kernel/trunk/core/except.inc

Rev	Author	Line No.	Line
164	serge	1
		2
		3	reg_eflags equ ebp+12
		4	reg_esp equ ebp+16
		5	reg_ss equ ebp+20
		6	;fpu_ctrl equ ebp-28
		7
168	serge	8	align 4
164	serge	9
		10	push ebp
		11	mov ebp, esp
		12	; sub esp, 28
		13
168	serge	14	push eax
164	serge	15
		16	push ecx
		17	push edx
		18
		19	mov ebx, [ss:CURRENT_TASK]
		20
		21
		22	mov eax, [ss:ebx+PROC_BASE+APPDATA.fpu_handler]
		23
		24	jz .default
		25
		26	mov ecx, [reg_eip]
		27
		28	sub edx, 4
		29	mov [ss:edx+new_app_base], ecx
		30	mov [reg_esp], edx
		31	mov dword [reg_eip], eax
		32
		33	pop edx
		34
		35	pop ebx
		36	pop eax
		37
		38	leave
		39
		40
		41	.default:
		42
		43	pop ecx
168	serge	44	pop ebx
		45	pop eax
		46	leave
		47
		48	save_ring3_context ;debugger support
164	serge	49
168	serge	50	mov bl, 16
164	serge	51
168	serge	52
		53	; fnstenv [fpu_ctrl]
		54
		55	; or word [fpu_ctrl], 0111111b
		56	; fldenv [fpu_ctrl]
		57
		58	; pop edx
		59
		60	; pop ebx
		61	; pop eax
		62
		63	; leave
		64
		65
		66	align 16
		67
		68	push ebp
		69	mov ebp, esp
		70
		71	push eax
		72
		73	push ecx
		74	push edx
		75
		76	mov ebx, [ss:CURRENT_TASK]
		77
		78
		79	mov eax, [ss:ebx+PROC_BASE+APPDATA.sse_handler]
		80
		81	jz .default
		82
		83	mov ecx, [reg_eip]
		84
		85	sub edx, 4
		86	mov [ss:edx+new_app_base], ecx
		87	mov [reg_esp], edx
		88	mov dword [reg_eip], eax
		89
		90	pop edx
		91
164	serge	92	pop ebx
		93	pop eax
		94
		95	leave
		96
		97
		98	.default:
		99
168	serge	100	pop ecx
		101	pop ebx
		102	pop eax
		103	leave
		104
		105	save_ring3_context ;debugger support
164	serge	106
168	serge	107	mov bl, 19
		108
		109
		110	restore reg_eip
		111
164	serge	112	restore reg_eflags
		113	restore reg_esp
		114	restore reg_ss
		115	;restore fpu_ctrl
		116

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