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cloudbase.mooo.com Git - z180-stamp.git/blob - avr/debug.c
2 * (C) Copyright 2014 Leo C. <erbl259-lmu@yahoo.de>
4 * SPDX-License-Identifier: GPL-2.0+
11 #include <avr/eeprom.h>
14 #include "print-utils.h"
27 extern unsigned int __brkval
;
29 dump_ram(__malloc_heap_start
,
30 __brkval
- (unsigned int) __malloc_heap_start
,
40 command_ret_t
do_dump_mem(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
42 void (*readhow
)(uint8_t *buf
, uint32_t addr
, uint8_t count
);
44 (void) cmdtp
; (void) flag
;
50 uint32_t length
= 128;
52 if (strchr(argv
[0],'r') != NULL
)
53 readhow
= ram_read_buf
;
54 else if (strchr(argv
[0],'e') != NULL
)
55 readhow
= eeprom_read_buf
;
59 /* Address is specified since argc > 1 */
60 addr
= strtoul(argv
[1], NULL
, 16);
62 /* If another parameter, it is the length to display. */
64 length
= (uint16_t) strtoul(argv
[2], NULL
, 16);
66 /* Print the lines. */
67 dump_mem(addr
, addr
, length
, readhow
, NULL
);
69 return CMD_RET_SUCCESS
;
72 command_ret_t
do_eep_cp(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
74 uint16_t src
, dest
, count
;
83 src
= (size_t) strtoul(argv
[1], NULL
, 16);
84 dest
= (size_t) strtoul(argv
[2], NULL
, 16);
85 count
= (size_t) strtoul(argv
[3], NULL
, 16);
88 debug("src > EEPROM size: 0x%04x\n", src
);
89 return CMD_RET_FAILURE
;
92 debug("dest > EEPROM size: 0x%04x\n", dest
);
93 return CMD_RET_FAILURE
;
95 if (count
> E2END
+1) {
96 debug("count > EEPROM size: 0x%04x\n", count
);
97 return CMD_RET_FAILURE
;
100 debug("Zero length?\n");
101 return CMD_RET_FAILURE
;
111 while (count
-- > 0) {
113 data
= eeprom_read_byte((uint8_t *) src
);
114 eeprom_write_byte((uint8_t *) dest
, data
);
119 return CMD_RET_SUCCESS
;
123 /*------------------------------------------------------------------------------*/
129 struct __freelist
*nx
;
132 extern char *__brkval
; /* first location not yet allocated */
133 extern struct __freelist
*__flp
; /* freelist pointer (head of freelist) */
135 #define STACK_POINTER() ((char *)AVR_STACK_POINTER_REG)
138 printfreelist(const char * title
)
140 struct __freelist
*fp1
;
142 unsigned int freesum
= 0;
147 printf("%s no free list\n", title
? title
: "");
149 printf("Free list: %s\n", title
? title
: "");
150 for (i
= 0, fp1
= __flp
; fp1
; i
++, fp1
= fp1
->nx
) {
151 printf(" entry %d @ %04x: size %4u, next ",
152 i
, (size_t)fp1
, fp1
->sz
);
154 printf("%04x\n", (size_t)fp1
->nx
);
161 freesum
+= (size_t) STACK_POINTER() - __malloc_margin
- (size_t) __brkval
;
163 printf("SP: %04x, __brkval: %04x, Total free: %04u\n",
164 (size_t) STACK_POINTER(), (size_t) __brkval
, freesum
);