arm/lib/memmove.S

1 /* SPDX-License-Identifier: GPL-2.0-only */
46 	PLD(	pld	[r1, #-4]		)
63 	PLD(	pld	[r1, #-4]		)
65 	PLD(	pld	[r1, #-32]		)
67 	PLD(	pld	[r1, #-64]		)
68 	PLD(	pld	[r1, #-96]		)
70 3:	PLD(	pld	[r1, #-128]		)
83 		W(ldr)	r3, [r1, #-4]!
84 		W(ldr)	r4, [r1, #-4]!
85 		W(ldr)	r5, [r1, #-4]!
86 		W(ldr)	r6, [r1, #-4]!
87 		W(ldr)	r8, [r1, #-4]!
88 		W(ldr)	r9, [r1, #-4]!
89 		W(ldr)	lr, [r1, #-4]!
94 		W(str)	r3, [r0, #-4]!
95 		W(str)	r4, [r0, #-4]!
96 		W(str)	r5, [r0, #-4]!
97 		W(str)	r6, [r0, #-4]!
98 		W(str)	r8, [r0, #-4]!
99 		W(str)	r9, [r0, #-4]!
100 		W(str)	lr, [r0, #-4]!
107 		ldrbne	r3, [r1, #-1]!
108 		ldrbcs	r4, [r1, #-1]!
109 		ldrbcs	ip, [r1, #-1]
110 		strbne	r3, [r0, #-1]!
111 		strbcs	r4, [r0, #-1]!
112 		strbcs	ip, [r0, #-1]
116 		ldrbgt	r3, [r1, #-1]!
117 		ldrbge	r4, [r1, #-1]!
118 		ldrb	lr, [r1, #-1]!
119 		strbgt	r3, [r0, #-1]!
120 		strbge	r4, [r0, #-1]!
122 		strb	lr, [r0, #-1]!
134 		.macro	backward_copy_shift push pull  argument
144 11:		stmfd	sp!, {r5, r6, r8 - r10}
146 	PLD(	pld	[r1, #-4]		)
148 	PLD(	pld	[r1, #-32]		)
150 	PLD(	pld	[r1, #-64]		)
151 	PLD(	pld	[r1, #-96]		)
153 12:	PLD(	pld	[r1, #-128]		)
155 		mov     lr, r3, lspush #\push
158 		orr     lr, lr, ip, lspull #\pull
159 		mov     ip, ip, lspush #\push
160 		orr     ip, ip, r10, lspull #\pull
161 		mov     r10, r10, lspush #\push
162 		orr     r10, r10, r9, lspull #\pull
163 		mov     r9, r9, lspush #\push
164 		orr     r9, r9, r8, lspull #\pull
165 		mov     r8, r8, lspush #\push
166 		orr     r8, r8, r6, lspull #\pull
167 		mov     r6, r6, lspush #\push
168 		orr     r6, r6, r5, lspull #\pull
169 		mov     r5, r5, lspush #\push
170 		orr     r5, r5, r4, lspull #\pull
171 		mov     r4, r4, lspush #\push
172 		orr     r4, r4, r3, lspull #\pull
173 		stmdb   r0!, {r4 - r6, r8 - r10, ip, lr}
178 		ldmfd	sp!, {r5, r6, r8 - r10}
183 15:		mov     lr, r3, lspush #\push
184 		ldr	r3, [r1, #-4]!
186 		orr	lr, lr, r3, lspull #\pull
187 		str	lr, [r0, #-4]!
192 16:		add	r1, r1, #(\pull / 8)
198 		backward_copy_shift	push=8	pull=24
200 17:		backward_copy_shift	push=16	pull=16
202 18:		backward_copy_shift	push=24	pull=8