Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) #include <linux/linkage.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) #include "sysdep.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) ENTRY(strcpy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 	mov	a3, a0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) 	/* Check if the src addr is aligned.  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)         andi    t0, a1, 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)         bnez	t0, 11f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 	/* Check if all the bytes in the word are not zero.  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 	ldw	a2, (a1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 	tstnbz	a2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 	bf	9f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 	stw	a2, (a3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 	ldw	a2, (a1, 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 	tstnbz	a2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 	bf	2f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	stw	a2, (a3, 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	ldw	a2, (a1, 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 	tstnbz	a2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	bf	3f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 	stw	a2, (a3, 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	ldw	a2, (a1, 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	tstnbz	a2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	bf	4f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	stw	a2, (a3, 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	ldw	a2, (a1, 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	tstnbz	a2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	bf	5f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	stw	a2, (a3, 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	ldw	a2, (a1, 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	tstnbz	a2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	bf	6f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	stw	a2, (a3, 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	ldw	a2, (a1, 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	tstnbz	a2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	bf	7f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	stw	a2, (a3, 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	ldw	a2, (a1, 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	tstnbz	a2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	bf	8f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	stw	a2, (a3, 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	addi	a3, 32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	addi	a1, 32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	br	1b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	addi	a3, 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	br	9f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	addi	a3, 8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	br	9f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 4:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	addi	a3, 12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	br	9f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 5:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	addi	a3, 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	br	9f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 6:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	addi	a3, 20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	br	9f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 7:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	addi	a3, 24
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	br	9f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 8:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	addi	a3, 28
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 9:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) # ifdef __CSKYBE__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	xtrb0	t0, a2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	st.b	t0, (a3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	bez	t0, 10f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	xtrb1	t0, a2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	st.b	t0, (a3, 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	bez	t0, 10f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	xtrb2	t0, a2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	st.b	t0, (a3, 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	bez	t0, 10f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	stw	a2, (a3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) # else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	xtrb3	t0, a2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	st.b	t0, (a3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	bez	t0, 10f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	xtrb2	t0, a2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	st.b	t0, (a3, 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	bez	t0, 10f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	xtrb1	t0, a2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	st.b	t0, (a3, 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	bez	t0, 10f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	stw	a2, (a3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) # endif	/* !__CSKYBE__ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 10:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	jmp	lr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 11:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	subi    t0, 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 12:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)         ld.b    a2, (a1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)         st.b	a2, (a3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)         bez	a2, 10b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	addi    t0, 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)         addi    a1, a1, 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)         addi    a3, a3, 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	bnez	t0, 12b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	jbr	1b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) ENDPROC(strcpy)