WebSVN – HelenOS – Diff – /SPARTAN/trunk/arch/ia32/src/asm.s



	movl %esp,%ebp
	pusha
 
	push %ds
	push %es
 
	# we must fill the data segment registers
	movw $16,%ax
	movw %ax,%ds
	movw %ax,%es
 
	movl $(\i),%edi
	pushl %ebp
	addl $4,(%esp)
	pushl %edi
	call trap_dispatcher

	pop %es
	pop %ds
 
	popa
	pop %ebp
 
	iret
 
	.if (\n-\i)-1
	handler "(\i+1)",\n
	.endif
.endm
 

#
outb:
	push %ebp
	movl %esp,%ebp
	pusha
 
	movl 8(%ebp),%edx
	movl 12(%ebp),%eax
	outb %al,%dx
 
	popa
	pop %ebp
	ret
 
 

#
outw:
	push %ebp
	movl %esp,%ebp
	pusha
 
	movl 8(%ebp),%edx
	movl 12(%ebp),%eax
	outw %ax,%dx
 
	popa
	pop %ebp
	ret
 
 

#
outl:
	push %ebp
	movl %esp,%ebp
	pusha
 
	movl 8(%ebp),%edx
	movl 12(%ebp),%eax
	outl %eax,%dx
 
	popa
	pop %ebp
	ret
 
 

CNT=16
memcopy:
	push %ebp
	movl %esp,%ebp
	pusha
 
	cld
	movl CNT(%ebp),%ecx
	movl DST(%ebp),%edi
	movl SRC(%ebp),%esi
 
	rep movsb %ds:(%esi),%es:(%edi)
 
	popa
	pop %ebp
	ret
 
 

X=16
memsetb:
	push %ebp
	movl %esp,%ebp
	pusha
 
	cld
	movl CNT(%ebp),%ecx
	movl DST(%ebp),%edi
	movl X(%ebp),%eax
 
	rep stosb %al,%es:(%edi)
 
	popa
	pop %ebp
	ret
 
 
## Fill memory with words

X=16
memsetw:
	push %ebp
	movl %esp,%ebp
	pusha
 
	cld
	movl CNT(%ebp),%ecx
	movl DST(%ebp),%edi
	movl X(%ebp),%eax
 
	rep stosw %ax,%es:(%edi)
 
	popa
	pop %ebp
	ret
 
 
## Compare memory regions for equality

	push %ebp
	subl $4,%esp	
	movl %esp,%ebp
 
	pusha
 
	cld
	movl CNT(%ebp),%ecx
	movl DST(%ebp),%edi
	movl SRC(%ebp),%esi
 
	repe cmpsb %es:(%edi),%ds:(%esi)
	movl %ecx,(%ebp)
 
	popa
	

Rev 115	Rev 125
Line 93...	Line 93...
93	movl %esp,%ebp	93	movl %esp,%ebp
94	pusha	94	pusha
95		95
96	push %ds	96	push %ds
97	push %es	97	push %es
98		98
99	# we must fill the data segment registers	99	# we must fill the data segment registers
100	movw $16,%ax	100	movw $16,%ax
101	movw %ax,%ds	101	movw %ax,%ds
102	movw %ax,%es	102	movw %ax,%es
103		103
104	movl $(\i),%edi	104	movl $(\i),%edi
105	pushl %ebp	105	pushl %ebp
106	addl $4,(%esp)	106	addl $4,(%esp)
107	pushl %edi	107	pushl %edi
108	call trap_dispatcher	108	call trap_dispatcher
Line 111...	Line 111...
111	pop %es	111	pop %es
112	pop %ds	112	pop %ds
113		113
114	popa	114	popa
115	pop %ebp	115	pop %ebp
116		116
117	iret	117	iret
118		118
119	.if (\n-\i)-1	119	.if (\n-\i)-1
120	handler "(\i+1)",\n	120	handler "(\i+1)",\n
121	.endif	121	.endif
122	.endm	122	.endm
123		123
Line 177...	Line 177...
177	#	177	#
178	outb:	178	outb:
179	push %ebp	179	push %ebp
180	movl %esp,%ebp	180	movl %esp,%ebp
181	pusha	181	pusha
182		182
183	movl 8(%ebp),%edx	183	movl 8(%ebp),%edx
184	movl 12(%ebp),%eax	184	movl 12(%ebp),%eax
185	outb %al,%dx	185	outb %al,%dx
186		186
187	popa	187	popa
188	pop %ebp	188	pop %ebp
189	ret	189	ret
190		190
191		191
Line 195...	Line 195...
195	#	195	#
196	outw:	196	outw:
197	push %ebp	197	push %ebp
198	movl %esp,%ebp	198	movl %esp,%ebp
199	pusha	199	pusha
200		200
201	movl 8(%ebp),%edx	201	movl 8(%ebp),%edx
202	movl 12(%ebp),%eax	202	movl 12(%ebp),%eax
203	outw %ax,%dx	203	outw %ax,%dx
204		204
205	popa	205	popa
206	pop %ebp	206	pop %ebp
207	ret	207	ret
208		208
209		209
Line 213...	Line 213...
213	#	213	#
214	outl:	214	outl:
215	push %ebp	215	push %ebp
216	movl %esp,%ebp	216	movl %esp,%ebp
217	pusha	217	pusha
218		218
219	movl 8(%ebp),%edx	219	movl 8(%ebp),%edx
220	movl 12(%ebp),%eax	220	movl 12(%ebp),%eax
221	outl %eax,%dx	221	outl %eax,%dx
222		222
223	popa	223	popa
224	pop %ebp	224	pop %ebp
225	ret	225	ret
226		226
227		227
Line 237...	Line 237...
237	CNT=16	237	CNT=16
238	memcopy:	238	memcopy:
239	push %ebp	239	push %ebp
240	movl %esp,%ebp	240	movl %esp,%ebp
241	pusha	241	pusha
242		242
243	cld	243	cld
244	movl CNT(%ebp),%ecx	244	movl CNT(%ebp),%ecx
245	movl DST(%ebp),%edi	245	movl DST(%ebp),%edi
246	movl SRC(%ebp),%esi	246	movl SRC(%ebp),%esi
247		247
248	rep movsb %ds:(%esi),%es:(%edi)	248	rep movsb %ds:(%esi),%es:(%edi)
249		249
250	popa	250	popa
251	pop %ebp	251	pop %ebp
252	ret	252	ret
253		253
254		254
Line 263...	Line 263...
263	X=16	263	X=16
264	memsetb:	264	memsetb:
265	push %ebp	265	push %ebp
266	movl %esp,%ebp	266	movl %esp,%ebp
267	pusha	267	pusha
268		268
269	cld	269	cld
270	movl CNT(%ebp),%ecx	270	movl CNT(%ebp),%ecx
271	movl DST(%ebp),%edi	271	movl DST(%ebp),%edi
272	movl X(%ebp),%eax	272	movl X(%ebp),%eax
273		273
274	rep stosb %al,%es:(%edi)	274	rep stosb %al,%es:(%edi)
275		275
276	popa	276	popa
277	pop %ebp	277	pop %ebp
278	ret	278	ret
279		279
280		280
281	## Fill memory with words	281	## Fill memory with words
Line 289...	Line 289...
289	X=16	289	X=16
290	memsetw:	290	memsetw:
291	push %ebp	291	push %ebp
292	movl %esp,%ebp	292	movl %esp,%ebp
293	pusha	293	pusha
294		294
295	cld	295	cld
296	movl CNT(%ebp),%ecx	296	movl CNT(%ebp),%ecx
297	movl DST(%ebp),%edi	297	movl DST(%ebp),%edi
298	movl X(%ebp),%eax	298	movl X(%ebp),%eax
299		299
300	rep stosw %ax,%es:(%edi)	300	rep stosw %ax,%es:(%edi)
301		301
302	popa	302	popa
303	pop %ebp	303	pop %ebp
304	ret	304	ret
305		305
306		306
307	## Compare memory regions for equality	307	## Compare memory regions for equality
Line 318...	Line 318...
318	push %ebp	318	push %ebp
319	subl $4,%esp	319	subl $4,%esp
320	movl %esp,%ebp	320	movl %esp,%ebp
321		321
322	pusha	322	pusha
323		323
324	cld	324	cld
325	movl CNT(%ebp),%ecx	325	movl CNT(%ebp),%ecx
326	movl DST(%ebp),%edi	326	movl DST(%ebp),%edi
327	movl SRC(%ebp),%esi	327	movl SRC(%ebp),%esi
328		328
329	repe cmpsb %es:(%edi),%ds:(%esi)	329	repe cmpsb %es:(%edi),%ds:(%esi)
330	movl %ecx,(%ebp)	330	movl %ecx,(%ebp)
331		331
332	popa	332	popa
333		333

Subversion Repositories HelenOS

(root)/SPARTAN/trunk/arch/ia32/src/asm.s – Rev 115 → 125