mips/mips/support.S

120 	bne	a1, 1, 2f
125 	bne	a1, 2, 4f
153 	sb		v0, 0(a1)		# each byte until NIL
156 	PTR_ADDU	a1, a1, 1
175 	sh		a0, 0(a1)
177 	PTR_ADDU	a1, a1, 2
202  *			a1 = memory address
207 	PTR_ADDU	a2, a1
210 	PTR_ADDU	a1, 1
211 	bne		a1, a2, 1b
212 	sb		v0, -1(a1)
221 	PTR_ADDU	a2, a1
224 	PTR_ADDU	a1, 2
225 	bne		a1, a2, 1b
226 	sh		v0, -2(a1)
235 	PTR_ADDU	a2, a1
238 	PTR_ADDU	a1, 4
239 	bne		a1, a2, 1b
240 	sw		v0, -4(a1)
248 	PTR_ADDU	a2, a1
250 	lbu		v0, 0(a1)
251 	PTR_ADDU	a1, 1
252 	bne		a1, a2, 1b
263 	and	v0, a1
265 	addu	a2, a1
267 	lhu	v0, 0(a1)
268 	addiu	a1, 2
269 	bne	a1, a2, 1b
275 	LWHI	v0, 0(a1)
276 	LWLO	v0, 3(a1)
277 	addiu	a1, 2
278 	bne	a1, a2, 3b
289 	and	v0, a1
291 	addu	a2, a1
293 	lw	v0, 0(a1)
294 	addiu	a1, 4
295 	bne	a1, a2, 1b
301 	LWHI	v0, 0(a1)
302 	LWLO	v0, 3(a1)
303 	addiu	a1, 4
304 	bne	a1, a2, 3b
353 	blt	a1, zero, _C_LABEL(copyerr)  # make sure address is in user space
404 	blt	a1, zero, _C_LABEL(copyerr) # make sure address is in user space
500 	sw	a1, 0(a0)		# store word
515 	sd	a1, 0(a0)		# store word
524  * <v0>u_long casuword(<a0>u_long *p, <a1>u_long oldval, <a2>u_long newval)
528  * <v0>uint32_t casuword(<a0>uint32_t *p, <a1>uint32_t oldval,
544 	bne	a1, v0, 2f
571 	bne	a1, v0, 2f
599 	sw	a1, 0(a0)		# store word
602 	li	a1, 4			# size of word
617 	sh	a1, 0(a0)		# store short
631 	sb	a1, 0(a0)		# store byte
666 	sh	a1, 0(a0)		# store short
684 	move	a0, a1
685 	move	a1, v0
690 	sltu	t1, a1, t0
691 	sltu	t2, a0, a1
697 	PTR_ADDU	t1, a1, a2		# t1 = end of to region
709 	xor	v1, a0, a1		# compare low two bits of addresses
711 	PTR_SUBU	a3, zero, a1		# compute # bytes to word align address
720 	SWHI	v1, 0(a1)		# store 1, 2, or 3 bytes to align a1
721 	PTR_ADDU	a1, a1, a3
728 	LWHI	v1, 0(a0)		# copy words a0 unaligned, a1 aligned
731 	sw	v1, 0(a1)
732 	PTR_ADDU	a1, a1, 4
742 	SWHI	v1, 0(a1)
743 	PTR_ADDU	a1, a1, a3
752 	sw	v1, 0(a1)
754 	PTR_ADDU	a1, a1, 4
761 	sb	v1, 0(a1)
763 	PTR_ADDU	a1, a1, 1	   # MMU BUG ? can not do -1(a1) at 0x80000000!!
778 	sll	t1, a1, 8		# compute  c << 8 in t1
779 	or	t1, t1, a1		# compute c << 8 | c in 11
817 	sb	a1, -1(a0)
830 	blt	a1, 12, smallclr	# small amount to clear?
834 	PTR_SUBU	a1, a1, a3		# subtract from remaining count
838 	and	v0, a1, 3		# compute number of words left
839 	PTR_SUBU	a3, a1, v0
840 	move	a1, v0
847 	ble	a1, zero, 2f
848 	PTR_ADDU	a3, a1, a0		# compute ending address
865 	xor	v0, a0, a1		# compare low two bits of addresses
867 	PTR_SUBU	a3, zero, a1		# compute # bytes to word align address
875 	LWHI	v1, 0(a1)
876 	PTR_ADDU	a1, a1, a3
885 	lw	v1, 0(a1)
888 	PTR_ADDU	a1, a1, 4
898 	lbu	v0, 0(a0)		# compare bytes until a1 word aligned
899 	lbu	v1, 0(a1)
902 	PTR_ADDU	a1, a1, 1
910 	LWHI	v0, 0(a0)		# compare words a0 unaligned, a1 aligned
912 	lw	v1, 0(a1)
915 	PTR_ADDU	a1, a1, 4
923 	lbu	v1, 0(a1)
926 	PTR_ADDU	a1, a1, 1
986 	bne	t0, a1, 2f
1029 	or	t0, t0, a1
1050 	addu	t0, t0, a1
1069 	nor	a1, zero, a1
1072 	and	t0, t0, a1	# t1 has the new lower 16 bits
1093 	subu	t0, t0, a1
1114 	andi	a1, a1, 0xffff
1117 	or	t0, t0, a1
1136 	nor	a1, zero, a1
1141 	and	t1, t1, a1	# t1 has the new lower 16 bits
1168 	subu	t1, t1, a1
1195 	addu	t1, t1, a1
1222 	addu	t1, t1, a1
1250 	subu	t1, t1, a1
1283 	ld	t0, (a1)
1309 	sd	t0, (a1)
1356 	sw	a1, (a0)
1361 	SWHI	a1, 0(a0)
1362 	SWLO	a1, 3(a0)
1442 	beq	v0, a1, 2f		/* compare */
1476 	or      t1, a1, zero
1477 /*	dmfc0   a1, 9, 7*/
1479 	sd	a1, 0(a0)
1480 	or      a1, t1, zero
1481 /*	dmtc0   a1, 9, 7*/
1494 /*	dmfc0   a1, 9, 7 */
1496 	sd	a1, 0(a0)
1552 	# NOTE: a1 is padding!
1563 	or	a1, a2, a3
1564 	sd	a1, 0(a0)
1570 	sd	a1, 0(a0)