powerpc/lib/copy_32.S

16 	lwz	r7,4(r4);	\
20 	stw	r7,4(r6);	\
27 	lwz	r7,4(r4);	\
34 8 ## n ## 4:			\
35 	stw	r7,4(r6);	\
46 	b	104f;				\
49 	b	105f;				\
54 	EX_TABLE(8 ## n ## 4b,9 ## n ## 1b);	\
68 	addi	r6, r3, -4
69 	beq-	2f
72 1:	stwu	r4, 4(r6)
76 	sth	r4, 4(r6)
91 	cmplwi	0,r5,4
92 	blt	7f
107 5:	b	2f
114 	ble	2f
117 	beq	3f
119 4:	stwu	r4,4(r6)
120 	bdnz	4b
122 	li	r7,4
127 	addi	r5,r5,4
131 	bdz	6f
132 1:	stwu	r4,4(r6)
176 	crand	0,0,4			/* cr0.lt &= cr1.lt */
179 	addi	r4,r4,-4
180 	addi	r6,r3,-4
183 	beq	58f
186 	blt	63f			/* if not much to do */
190 	beq+	61f
191 70:	lbz	r9,4(r4)		/* do some bytes */
198 	beq	58f
199 72:	lwzu	r9,4(r4)		/* do some words */
200 	stwu	r9,4(r6)
205 	li	r11,4
207 	beq	63f
228 	beq	64f
229 30:	lwzu	r0,4(r4)
230 	stwu	r0,4(r6)
235 	beq+	65f
249 	addi	r6,r3,-4
250 	addi	r4,r4,-4
251 	beq	2f			/* if less than 8 bytes to do */
254 	bne	5f
255 1:	lwz	r7,4(r4)
257 	stw	r7,4(r6)
261 2:	cmplwi	0,r5,4
262 	blt	3f
263 	lwzu	r0,4(r4)
264 	addi	r5,r5,-4
265 	stwu	r0,4(r6)
271 4:	lbzu	r0,1(r4)
273 	bdnz	4b
275 5:	subfic	r0,r0,4
277 6:	lbz	r7,4(r4)
279 	stb	r7,4(r6)
292 	beq	2f
295 	bne	5f
296 1:	lwz	r7,-4(r4)
298 	stw	r7,-4(r6)
302 2:	cmplwi	0,r5,4
303 	blt	3f
304 	lwzu	r0,-4(r4)
305 	subi	r5,r5,4
306 	stwu	r0,-4(r6)
310 4:	lbzu	r0,-1(r4)
312 	bdnz	4b
325 	addi	r4,r4,-4
326 	addi	r6,r3,-4
329 	beq	58f
332 	blt	63f			/* if not much to do */
335 	beq+	61f
336 70:	lbz	r9,4(r4)		/* do some bytes */
337 71:	stb	r9,4(r6)
344 	beq	58f
345 72:	lwzu	r9,4(r4)		/* do some words */
346 73:	stwu	r9,4(r6)
349 	EX_TABLE(70b,100f)
350 	EX_TABLE(71b,101f)
351 	EX_TABLE(72b,102f)
352 	EX_TABLE(73b,103f)
356 	li	r11,4
357 	beq	63f
360 	li	r3,4
363 	ble	114f
370 	ble	112f
387 	EX_TABLE(54b,105f)
396 	COPY_16_BYTES_WITHEX(4)
405 	li	r3,4
411 	beq	64f
412 30:	lwzu	r0,4(r4)
413 31:	stwu	r0,4(r6)
418 	beq+	65f
419 40:	lbz	r0,4(r4)
420 41:	stb	r0,4(r6)
429 	b	90f
434 	b	99f
437 	b	91f
441 	b	99f
445  * 104f (if in read part) or 105f (if in write part), after updating r5
454 	COPY_16_BYTES_EXCODE(4)
464 	b	92f
471 	b	106f
474 	b	93f
479 	b	99f
482 	b	94f
494 	beq	120f			/* shouldn't happen */
496 	bne	120f
499 130:	lbz	r0,4(r4)
500 131:	stb	r0,4(r6)
504 /* then clear out the destination: r3 bytes starting at 4(r6) */