-
Notifications
You must be signed in to change notification settings - Fork 2
/
uart_dumpregs.S
77 lines (67 loc) · 1.08 KB
/
uart_dumpregs.S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
.include "mmio.inc"
.include "uart.inc"
;;; Register dump should be called like this:
;;;
;;; stm r0-pc, (--sp)
;;; bl uart_dumpregs
;;; add sp, 32*4
;;;
.global uart_dumpregs
uart_dumpregs:
stm r6-r8, lr, (--sp)
mov r6, 32
add r7, sp, 4*36
lea r8, .L_regnames
.L_loop:
;; register name and colon
ld r0, (r8++)
bl uart_putchars
mov r0, ':' | ' ' << 8
bl uart_putchars
;; register value
ld r0, (--r7)
bl uart_puthexword
;; space or newline
bmask r1, r6, 2
mov r0, '\r' << 8 | '\n'
beq r1, 1, 1f
mov r0, ' '
1:
bl uart_putchars
addcmpbne r6, -1, 0, .L_loop
ldm r6-r8, pc, (sp++)
.data
.align 4
.L_regnames:
.asciz " r0"
.asciz " r1"
.asciz " r2"
.asciz " r3"
.asciz " r4"
.asciz " r5"
.asciz " r6"
.asciz " r7"
.asciz " r8"
.asciz " r9"
.asciz "r10"
.asciz "r11"
.asciz "r12"
.asciz "r13"
.asciz "r14"
.asciz "r15"
.asciz "r16"
.asciz "r17"
.asciz "r18"
.asciz "r19"
.asciz "r20"
.asciz "r21"
.asciz "r22"
.asciz "r23"
.asciz " gp"
.asciz " sp"
.asciz " lr"
.asciz "r27"
.asciz "r28"
.asciz "r29"
.asciz " sr"
.asciz " pc"