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Copy pathdebugging_macro.S
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743 lines (521 loc) · 12.3 KB
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#include "uart_regs.h"
#define GPIO_REG 0x00101880
#define CPSR_REG 0x00101890
#define CSD_MEM 0x001018A0
.macro debugging_macro
ldr r12, =GPIO_REG
mov r1, #16
ldr r2, =CSD_MEM
sub r12, r12, #48
reg_read:
ldr r0, [r12], #4
ldr r3, =0x72 // insert 'r'
strb r3, [r2], #1
cmp r1, #16 // if r0 insert '0'
ldreq r3, =0x30
streqb r3, [r2], #1
cmp r1, #15 // if r1 insert '1'
ldreq r3, =0x31
streqb r3, [r2], #1
cmp r1, #14 // if r2 insert '2'
ldreq r3, =0x32
streqb r3, [r2], #1
cmp r1, #13 // if r3 insert '3'
ldreq r3, =0x33
streqb r3, [r2], #1
cmp r1, #12 // if r4 insert '4'
ldreq r3, =0x34
streqb r3, [r2], #1
cmp r1, #11 // if r5 insert '5'
ldreq r3, =0x35
streqb r3, [r2], #1
cmp r1, #10 // if r6 insert '6'
ldreq r3, =0x36
streqb r3, [r2], #1
cmp r1, #9 // if r7 insert '7'
ldreq r3, =0x37
streqb r3, [r2], #1
cmp r1, #8 // if r8 insert '8'
ldreq r3, =0x38
streqb r3, [r2], #1
cmp r1, #7 // if r9 insert '9'
ldreq r3, =0x39
streqb r3, [r2], #1
cmp r1, #6 // if r10 insert '10'
ldreq r3, =0x31
streqb r3, [r2], #1
ldreq r3, =0x30
streqb r3, [r2], #1
cmp r1, #5 // if r11 insert '11'
ldreq r3, =0x31
streqb r3, [r2], #1
ldreq r3, =0x31
streqb r3, [r2], #1
cmp r1, #4 // if r12 insert '12'
ldreq r3, =0x31
streqb r3, [r2], #1
ldreq r3, =0x32
streqb r3, [r2], #1
cmp r1, #3 // if r13 insert '13'
ldreq r3, =0x31
streqb r3, [r2], #1
ldreq r3, =0x33
streqb r3, [r2], #1
cmp r1, #2 // if r14 insert '14'
ldreq r3, =0x31
streqb r3, [r2], #1
ldreq r3, =0x34
streqb r3, [r2], #1
cmp r1, #1 // if r15 insert '15'
ldreq r3, =0x31
streqb r3, [r2], #1
ldreq r3, =0x35
streqb r3, [r2], #1
// " = 0x"
ldr r3, =0x20 // insert space
strb r3, [r2], #1
ldr r3, =0x3D // insert '='
strb r3, [r2], #1
ldr r3, =0x20
strb r3, [r2], #1 // insert space
ldr r3, =0x30 // insert '0'
strb r3, [r2], #1
ldr r3, =0x78 // insert 'x'
strb r3, [r2], #1
// 한자리씩 추출
ldr r3, =0x0FFFFFFF // insert first hex value
bic r3, r0, r3 // bic : and not
mov r3, r3, LSR #28
bl print_gpio_num
ldr r3, =0xF0FFFFFF // insert second hex value
bic r3, r0, r3
mov r3, r3, LSR #24
bl print_gpio_num
ldr r3, =0xFF0FFFFF // insert third hex value
bic r3, r0, r3
mov r3, r3, LSR #20
bl print_gpio_num
ldr r3, =0xFFF0FFFF // insert forth hex value
bic r3, r0, r3
mov r3, r3, LSR #16
bl print_gpio_num
ldr r3, =0x5F // insert '_'
strb r3, [r2], #1
ldr r3, =0xFFFF0FFF // insert fifth hex value
bic r3, r0, r3
mov r3, r3, LSR #12
bl print_gpio_num
ldr r3, =0xFFFFF0FF // insert sixth hex value
bic r3, r0, r3
mov r3, r3, LSR #8
bl print_gpio_num
ldr r3, =0xFFFFFF0F // insert seventh hex value
bic r3, r0, r3
mov r3, r3, LSR #4
bl print_gpio_num
ldr r3, =0xFFFFFFF0 // insert last hex value
bic r3, r0, r3
bl print_gpio_num // 출력 완료
// ", "
ldr r3, =0x2C // insert ','
strb r3, [r2], #1
ldr r3, =0x20 // insert space
strb r3, [r2], #1
// new line 파악 후 줄 띄우기
cmp r1, #13 // if r3 is inserted, insert line feed, carrige return
ldreq r3, =0x0A
streqb r3, [r2], #1
ldreq r3, =0x0D
streqb r3, [r2], #1
cmp r1, #9 // if r7 is inserted, insert line feed, carrige return
ldreq r3, =0x0A
streqb r3, [r2], #1
ldreq r3, =0x0D
streqb r3, [r2], #1
cmp r1, #5 // if r11 is inserted, insert line feed, carrige return
ldreq r3, =0x0A
streqb r3, [r2], #1
ldreq r3, =0x0D
streqb r3, [r2], #1
cmp r1, #1 // if r15 is inserted, insert line feed, carrige return
ldreq r3, =0x0A
streqb r3, [r2], #1
ldreq r3, =0x0D // carriage return
streqb r3, [r2], #1
subs r1, r1, #1
bne reg_read // 다음 레지스터 읽으러 ㄱㄱ
// GPIO 레지스터를 모두 출력했다면 CPSR을 출력해보자
// "cpsr = " 출력
ldr r3, =0x63 // 'c'
strb r3, [r2], #1
ldr r3, =0x70 // 'p'
strb r3, [r2], #1
ldr r3, =0x73 // 's'
strb r3, [r2], #1
ldr r3, =0x72 // 'r'
strb r3, [r2], #1
ldr r3, =0x20 // space
strb r3, [r2], #1
ldr r3, =0x3D // '='
strb r3, [r2], #1
ldr r3, =0x20 // space
strb r3, [r2], #1
// NZCV값 출력하기
ldr r11, =CPSR_REG
ldr r0, [r11]
ldr r3, =0x0FFFFFFF
bic r3, r0, r3
mov r3, r3, LSR #28 // 맨 앞 비트의 정체를 파악하기
mov r4, r3, LSR #3 // get N bit
cmp r4, #1 // N bit가 1이라면
ldreq r5, =0x4E // 출력
streqb r5, [r2], #1 // 출력
cmp r4, #0
ldreq r5, =0x6E // if N bit is 0, print 'n'
streqb r5, [r2], #1
mov r4, r3, LSR #2 // get Z bit
and r4, r4, #1
cmp r4, #1
ldreq r5, =0x5A // if Z bit is 1, print 'Z'
streqb r5, [r2], #1
cmp r4, #0
ldreq r5, =0x7A // if Z bit is 0, print 'z'
streqb r5, [r2], #1
mov r4, r3, LSR #1 // get C bit
and r4, r4, #1
cmp r4, #1
ldreq r5, =0x43 // if C bit is 1, print 'C'
streqb r5, [r2], #1
cmp r4, #0
ldreq r5, =0x63 // if C bit is 0, print 'c'
streqb r5, [r2], #1
mov r4, r3
and r4, r4, #1 // get V bit
cmp r4, #1
ldreq r5, =0x56 // if V bit is 1, print 'V'
streqb r5, [r2], #1
cmp r4, #0
ldreq r5, =0x76 // if V bit is 0, print 'v'
streqb r5, [r2], #1
// ", " 출력
ldr r5, =0x2C // ','
str r5, [r2], #1
ldr r5, =0x20 // space
str r5, [r2], #1
// IF값 출력
mov r3, r0, LSR #6
ldr r4, =0xFFFFFFFC
bic r3, r3, r4 // get IF bits
cmp r3, #0 // if IF is 00 print 'if'
ldreq r5, =0x69
streqb r5, [r2], #1
ldreq r5, =0x66
streqb r5, [r2], #1
cmp r3, #1 // if IF is 01 print 'iF'
ldreq r5, =0x69
streqb r5, [r2], #1
ldreq r5, =0x46
streqb r5, [r2], #1
cmp r3, #2 // if IF is 10 print 'If'
ldreq r5, =0x49
streqb r5, [r2], #1
ldreq r5, =0x66
streqb r5, [r2], #1
cmp r3, #3 // if IF is 11 print 'IF'
ldreq r5, =0x49
streqb r5, [r2], #1
ldreq r5, =0x46
streqb r5, [r2], #1
// ", " 출력
ldr r5, =0x2C // ','
strb r5, [r2], #1
ldr r5, =0x20 // space
strb r5, [r2], #1
// JT값 출력
ldr r3, =0xFEFFFFDF // get J,T bits
bic r3, r0, r3
cmp r3, #0 // if JF is 0..0 print 'ARM'
ldreq r5, =0x41
streq r5, [r2], #1
ldreq r5, =0x52
streq r5, [r2], #1
ldreq r5, =0x4D
streq r5, [r2], #1
ldr r4, =0x00000020 // if JF is 0..1 print 'Thumb'
cmp r3, r4
ldreq r5, =0x54
streqb r5, [r2], #1
ldreq r5, =0x68
streqb r5, [r2], #1
ldreq r5, =0x75
streqb r5, [r2], #1
ldreq r5, =0x6D
streqb r5, [r2], #1
ldreq r5, =0x62
streqb r5, [r2], #1
ldr r4, =0x01000000 // if JF is 1..0 print 'Jazelle'
cmp r3, r4
ldreq r5, =0x4A
streqb r5, [r2], #1
ldreq r5, =0x61
streqb r5, [r2], #1
ldreq r5, =0x7A
streqb r5, [r2], #1
ldreq r5, =0x65
streqb r5, [r2], #1
ldreq r5, =0x6C
streqb r5, [r2], #1
ldreq r5, =0x6C
streqb r5, [r2], #1
ldreq r5, =0x65
streqb r5, [r2], #1
ldr r4, =0x01000020 // if JF is 1..1 print 'ThumbEE'
cmp r3, r4
ldreq r5, =0x54
streqb r5, [r2], #1
ldreq r5, =0x68
streqb r5, [r2], #1
ldreq r5, =0x75
streqb r5, [r2], #1
ldreq r5, =0x6D
streqb r5, [r2], #1
ldreq r5, =0x62
streqb r5, [r2], #1
ldreq r5, =0x45
streqb r5, [r2], #1
ldreq r5, =0x45
streqb r5, [r2], #1
// "mode, current mode = " 출력
ldr r5, =0x20 // space
strb r5, [r2], #1
ldr r5, =0x6D // 'm'
strb r5, [r2], #1
ldr r5, =0x6F // 'o'
strb r5, [r2], #1
ldr r5, =0x64 // 'd'
strb r5, [r2], #1
ldr r5, =0x65 // 'e'
strb r5, [r2], #1
ldr r5, =0x2C // ','
strb r5, [r2], #1
ldr r5, =0x20 // space
strb r5, [r2], #1
ldr r5, =0x63 // 'c'
strb r5, [r2], #1
ldr r5, =0x75 // 'u'
strb r5, [r2], #1
ldr r5, =0x72 // 'r'
strb r5, [r2], #1
ldr r5, =0x72 // 'r'
strb r5, [r2], #1
ldr r5, =0x65 // 'e'
strb r5, [r2], #1
ldr r5, =0x6E // 'n'
strb r5, [r2], #1
ldr r5, =0x74 // 't'
strb r5, [r2], #1
ldr r5, =0x20
strb r5, [r2], #1 // space
ldr r5, =0x6D // 'm'
strb r5, [r2], #1
ldr r5, =0x6F // 'o'
strb r5, [r2], #1
ldr r5, =0x64 // 'd'
strb r5, [r2], #1
ldr r5, =0x65 // 'e'
strb r5, [r2], #1
ldr r5, =0x20 // space
strb r5, [r2], #1
ldr r5, =0x3D // '='
strb r5, [r2], #1
ldr r5, =0x20 // space
strb r5, [r2], #1
// MODE값 받아와서 출력
ldr r3, =0xFFFFFFE0 // get mode[4:0] bits
bic r3, r0, r3
cmp r3, #16 // if mode bits are 10000, print 'USR'
ldreq r5, =0x55
streqb r5, [r2], #1
ldreq r5, =0x53
streqb r5, [r2], #1
ldreq r5, =0x52
streqb r5, [r2], #1
cmp r3, #17 // if mode bits are 10001, print 'FIQ'
ldreq r5, =0x46
streqb r5, [r2], #1
ldreq r5, =0x49
streqb r5, [r2], #1
ldreq r5, =0x51
streqb r5, [r2], #1
cmp r3, #18 // if mode bits are 10010, print 'IRQ'
ldreq r5, =0x49
streqb r5, [r2], #1
ldreq r5, =0x52
streqb r5, [r2], #1
ldreq r5, =0x51
streqb r5, [r2], #1
cmp r3, #19 // if mode bits are 10011, print 'SVC'
ldreq r5, =0x53
streqb r5, [r2], #1
ldreq r5, =0x56
streqb r5, [r2], #1
ldreq r5, =0x43
streqb r5, [r2], #1
cmp r3, #22 // if mode bits are 10110, print 'MON'
ldreq r5, =0x4D
streqb r5, [r2], #1
ldreq r5, =0x4F
streqb r5, [r2], #1
ldreq r5, =0x4E
streqb r5, [r2], #1
cmp r3, #23 // if mode bits are 10111, print 'ABT'
ldreq r5, =0x41
streqb r5, [r2], #1
ldreq r5, =0x42
streqb r5, [r2], #1
ldreq r5, =0x54
streqb r5, [r2], #1
cmp r3, #26 // if mode bits are 11010, print 'HYP'
ldreq r5, =0x48
streqb r5, [r2], #1
ldreq r5, =0x59
streqb r5, [r2], #1
ldreq r5, =0x50
streqb r5, [r2], #1
cmp r3, #27 // if mode bits are 11011, print 'UND'
ldreq r5, =0x55
streqb r5, [r2], #1
ldreq r5, =0x4E
streqb r5, [r2], #1
ldreq r5, =0x44
streqb r5, [r2], #1
cmp r3, #31 // if mode bits are 11111, print 'SYS'
ldreq r5, =0x53
streqb r5, [r2], #1
ldreq r5, =0x59
streqb r5, [r2], #1
ldreq r5, =0x53
streqb r5, [r2], #1
//
ldr r5, =0x20 // space
strb r5, [r2], #1
ldr r5, =0x28 // '('
strb r5, [r2], #1
ldr r5, =0x3D // '='
strb r5, [r2], #1
ldr r3, =0x30 // insert '0'
strb r3, [r2], #1
ldr r3, =0x78 // insert 'x'
strb r3, [r2], #1
ldr r3, =0x0FFFFFFF // insert first hex value
bic r3, r0, r3
mov r3, r3, LSR #28
bl print_gpio_num
ldr r3, =0xF0FFFFFF // insert second hex value
bic r3, r0, r3
mov r3, r3, LSR #24
bl print_gpio_num
ldr r3, =0xFF0FFFFF // insert third hex value
bic r3, r0, r3
mov r3, r3, LSR #20
bl print_gpio_num
ldr r3, =0xFFF0FFFF // insert forth hex value
bic r3, r0, r3
mov r3, r3, LSR #16
bl print_gpio_num
ldr r3, =0x5F // insert '_'
strb r3, [r2], #1
ldr r3, =0xFFFF0FFF // insert fifth hex value
bic r3, r0, r3
mov r3, r3, LSR #12
bl print_gpio_num
ldr r3, =0xFFFFF0FF // insert sixth hex value
bic r3, r0, r3
mov r3, r3, LSR #8
bl print_gpio_num
ldr r3, =0xFFFFFF0F // insert seventh hex value
bic r3, r0, r3
mov r3, r3, LSR #4
bl print_gpio_num
ldr r3, =0xFFFFFFF0 // insert last hex value
bic r3, r0, r3
bl print_gpio_num
ldr r5, =0x29 // ')'
strb r5, [r2], #1
ldr r5, =0x0A // line feed
strb r5, [r2], #1
ldr r3, =0x0A
strb r3, [r2], #1
ldr r5, =0x0D // carrige return
strb r5, [r2], #1
ldr r0, =0x00 // end of string
strb r0, [r2]
b end_debug
// GPIO 레지스터 "번호" 출력
print_gpio_num:
cmp r3, #0
moveq r3, #0x30
streqb r3, [r2], #1
moveq pc, lr // 다음 자리 숫자 출력하러 이동
cmp r3, #1
moveq r3, #0x31
streqb r3, [r2], #1
moveq pc, lr
cmp r3, #2
moveq r3, #0x32
streqb r3, [r2], #1
moveq pc, lr
cmp r3, #3
moveq r3, #0x33
streqb r3, [r2], #1
moveq pc, lr
cmp r3, #4
moveq r3, #0x34
streqb r3, [r2], #1
moveq pc, lr
cmp r3, #5
moveq r3, #0x35
streqb r3, [r2], #1
moveq pc, lr
cmp r3, #6
moveq r3, #0x36
streqb r3, [r2], #1
moveq pc, lr
cmp r3, #7
moveq r3, #0x37
streqb r3, [r2], #1
moveq pc, lr
cmp r3, #8
moveq r3, #0x38
streqb r3, [r2], #1
moveq pc, lr
cmp r3, #9
moveq r3, #0x39
streqb r3, [r2], #1
moveq pc, lr
cmp r3, #10
moveq r3, #0x41
streqb r3, [r2], #1
moveq pc, lr
cmp r3, #11
moveq r3, #0x42
streqb r3, [r2], #1
moveq pc, lr
cmp r3, #12
moveq r3, #0x43
streqb r3, [r2], #1
moveq pc, lr
cmp r3, #13
moveq r3, #0x44
streqb r3, [r2], #1
moveq pc, lr
cmp r3, #14
moveq r3, #0x45
streqb r3, [r2], #1
moveq pc, lr
cmp r3, #15
moveq r3, #0x46
streqb r3, [r2], #1
moveq pc, lr
end_debug:
.endm