Subversion Repositories Kolibri OS

Rev

Rev 419 | Go to most recent revision | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 419 Rev 420
Line 133... Line 133...
133 
	shr	ecx, 2
 133 
	shr	ecx, 2
134 
	rep	movsd
 134 
	rep	movsd
135 
	jmp	.ret
 135 
	jmp	.ret
136 
.ring0:
 136 
.ring0:
137 
; note that following code assumes that all interrupt/exception handlers
 137 
; note that following code assumes that all interrupt/exception handlers
138 
; saves ring-3 context by push ds es, pushad in this order
 138 
; saves ring-3 context by pushad in this order
139 
        mov     esi, [eax+TSS._esp0]
 139 
        mov     esi, [eax+TSS._esp0]
140 
; top of ring0 stack: ring3 stack ptr (ss+esp), iret data (cs+eip+eflags), ds, es, pushad
 140 
; top of ring0 stack: ring3 stack ptr (ss+esp), iret data (cs+eip+eflags), pushad
141 
	sub	esi, 8+12+8+20h
 141 
        sub     esi, 8+12+20h
142 
	lodsd
 142 
        lodsd                     ;edi
143 
	mov	[edi+24h], eax
 143 
	mov	[edi+24h], eax
144 
	lodsd
 144 
        lodsd                     ;esi
145 
	mov	[edi+20h], eax
 145 
	mov	[edi+20h], eax
146 
	lodsd
 146 
        lodsd                     ; ebp
147 
	mov	[edi+1Ch], eax
 147 
	mov	[edi+1Ch], eax
148 
	lodsd
 148 
        lodsd                     ;esp
149 
	lodsd
 149 
        lodsd                     ;ebx
150 
	mov	[edi+14h], eax
 150 
	mov	[edi+14h], eax
151 
	lodsd
 151 
        lodsd                     ;edx
152 
	mov	[edi+10h], eax
 152 
	mov	[edi+10h], eax
153 
	lodsd
 153 
        lodsd                     ;ecx
154 
	mov	[edi+0Ch], eax
 154 
	mov	[edi+0Ch], eax
155 
	lodsd
 155 
        lodsd                     ;eax
156 
	mov	[edi+8], eax
 156 
	mov	[edi+8], eax
157 
	add	esi, 8
 157 
;;;        add     esi, 8         ;ds es
158 
	lodsd
 158 
        lodsd                     ;eip
159 
	mov	[edi], eax
 159 
	mov	[edi], eax
160 
	lodsd
 160 
        lodsd                     ;cs
161 
	lodsd
 161 
        lodsd                     ;eflags
162 
	mov	[edi+4], eax
 162 
	mov	[edi+4], eax
163 
	lodsd
 163 
        lodsd                     ;esp
164 
	mov	[edi+18h], eax
 164 
	mov	[edi+18h], eax
165 
.ret:
 165 
.ret:
166 
	sti
 166 
	sti
167 
	ret
 167 
	ret
Line 192... Line 192...
192 
	shr	ecx, 2
 192 
	shr	ecx, 2
193 
	rep	movsd
 193 
	rep	movsd
194 
	jmp	.stiret
 194 
	jmp	.stiret
195 
.ring0:
 195 
.ring0:
196 
        mov     edi, [eax+TSS._esp0]
 196 
        mov     edi, [eax+TSS._esp0]
197 
	sub	edi, 8+12+8+20h
 197 
        sub     edi, 8+12+20h
198 
	mov	eax, [esi+24h]
 198 
        mov     eax, [esi+24h]    ;edi
199 
	stosd
 199 
	stosd
200 
	mov	eax, [esi+20h]
 200 
        mov     eax, [esi+20h]    ;esi
201 
	stosd
 201 
	stosd
202 
	mov	eax, [esi+1Ch]
 202 
        mov     eax, [esi+1Ch]    ;ebp
203 
	stosd
 203 
	stosd
204 
	scasd
 204 
        scasd
205 
	mov	eax, [esi+14h]
 205 
        mov     eax, [esi+14h]    ;ebx
206 
	stosd
 206 
	stosd
207 
	mov	eax, [esi+10h]
 207 
        mov     eax, [esi+10h]    ;edx
208 
	stosd
 208 
	stosd
209 
	mov	eax, [esi+0Ch]
 209 
        mov     eax, [esi+0Ch]    ;ecx
210 
	stosd
 210 
	stosd
211 
	mov	eax, [esi+8]
 211 
        mov     eax, [esi+8]      ;eax
212 
	stosd
 212 
	stosd
213 
	add	edi, 8
 213 
;;;        add     edi, 8         ;ds es
214 
	mov	eax, [esi]
 214 
        mov     eax, [esi]        ;eip
215 
	stosd
 215 
	stosd
216 
	scasd
 216 
	scasd
217 
	mov	eax, [esi+4]
 217 
        mov     eax, [esi+4]      ;eflags
218 
	stosd
 218 
	stosd
219 
	mov	eax, [esi+18h]
 219 
        mov     eax, [esi+18h]    ;esp
220 
	stosd
 220 
	stosd
221 
.stiret:
 221 
.stiret:
222 
	sti
 222 
	sti
223 
.ret:
 223 
.ret:
224 
	ret
 224 
	ret
Line 420... Line 420...
420 
 
 420 
 
421 
debug_exc:
 421 
debug_exc:
422 
; int 1 = #DB
 422 
; int 1 = #DB
423 
	save_ring3_context
 423 
	save_ring3_context
424 
	cld
 424 
	cld
425 
	mov	ax, os_data
 425 
        mov     ax, app_data ;os_data
426 
	mov	ds, ax
 426 
	mov	ds, ax
427 
	mov	es, ax
 427 
	mov	es, ax
428 
	mov	eax, dr6
 428 
	mov	eax, dr6
429 
	test	ax, ax
 429 
	test	ax, ax
Line 458... Line 458...
458 
        mov     eax, [SLOT_BASE+eax+APPDATA.debugger_slot]
 458 
        mov     eax, [SLOT_BASE+eax+APPDATA.debugger_slot]
459 
	test	eax, eax
 459 
	test	eax, eax
460 
	jnz	.debug
 460 
	jnz	.debug
461 
	sti
 461 
	sti
462 
; not debuggee => say error and terminate
 462 
; not debuggee => say error and terminate
463 
	add	esp, 28h+4
 463 
        add     esp, 0x20+4
464 
	mov	[error_interrupt], 1
 464 
	mov	[error_interrupt], 1
465 
	call	show_error_parameters
 465 
	call	show_error_parameters
466 
        mov     edx, [TASK_BASE]
 466 
        mov     edx, [TASK_BASE]
467 
	mov	byte [edx+TASKDATA.state], 4
 467 
	mov	byte [edx+TASKDATA.state], 4
468 
	jmp	change_task
 468 
	jmp	change_task