#include "s51.h"
+static uint16_t start_address;
+
static enum command_result
parse_int(char *value, int *result)
{
return command_success;
}
+static enum command_result
+parse_uint8(char *value, uint8_t *uint8)
+{
+ int v;
+ enum command_result result;
+
+ result = parse_int(value, &v);
+ if (result != command_success)
+ return command_error;
+ if (v < 0 || v > 0xff)
+ return command_error;
+ *uint8 = v;
+ return command_success;
+}
+
enum command_result
command_quit (int argc, char **argv)
{
+ ccdbg_reset(s51_dbg);
exit(0);
return command_error;
}
static void
-dump_bytes(uint8_t *memory, int length, uint16_t start)
+dump_bytes(uint8_t *memory, int length, uint16_t start, char *format)
{
int group, i;
-
+
for (group = 0; group < length; group += 8) {
- s51_printf("0x%04x ", start + group);
+ s51_printf(format, start + group);
for (i = group; i < length && i < group + 8; i++)
s51_printf("%02x ", memory[i]);
for (; i < group + 8; i++)
uint8_t memory[65536];
uint8_t status;
int length;
-
+
if (argc != 3)
return command_error;
if (parse_uint16(argv[1], &start) != command_success)
return command_error;
length = (int) end - (int) start + 1;
status = ccdbg_read_memory(s51_dbg, start + 0xff00, memory, length);
- dump_bytes(memory, length, start);
+ dump_bytes(memory, length, start, "0x%02x ");
return command_success;
}
enum command_result
command_ds (int argc, char **argv)
{
- uint16_t start, end;
- uint8_t memory[65536];
+ uint8_t start, end;
+ uint8_t memory[0x100];
uint8_t status;
int length;
-
+
if (argc != 3)
return command_error;
- if (parse_uint16(argv[1], &start) != command_success)
+ if (parse_uint8(argv[1], &start) != command_success)
return command_error;
- if (parse_uint16(argv[2], &end) != command_success)
+ if (parse_uint8(argv[2], &end) != command_success)
return command_error;
length = (int) end - (int) start + 1;
- status = ccdbg_read_memory(s51_dbg, start + 0xdf00, memory, length);
- dump_bytes(memory, length, start);
+ status = ccdbg_read_sfr(s51_dbg, start, memory, length);
+ dump_bytes(memory, length, start, "0x%02x ");
return command_success;
}
uint8_t memory[65536];
uint8_t status;
int length;
-
+
if (argc != 3)
return command_error;
if (parse_uint16(argv[1], &start) != command_success)
return command_error;
length = (int) end - (int) start + 1;
status = ccdbg_read_memory(s51_dbg, start, memory, length);
- dump_bytes(memory, length, start);
+ dump_bytes(memory, length, start, "0x%04x ");
return command_success;
}
enum command_result
command_set (int argc, char **argv)
{
- return command_error;
+ uint16_t address;
+ uint8_t *data;
+ int len = argc - 3;
+ int i;
+ enum command_result ret = command_success;
+
+ if (len < 0)
+ return command_error;
+ if (parse_uint16(argv[2], &address) != command_success)
+ return command_error;
+ if (len == 0)
+ return command_success;
+ data = malloc(len);
+ if (!data)
+ return command_error;
+ for (i = 0; i < len; i++)
+ if (parse_uint8(argv[i+3], &data[i]) != command_success)
+ return command_error;
+
+ if (strcmp(argv[1], "xram") == 0) {
+ ccdbg_write_memory(s51_dbg, address, data, len);
+ } else if (strcmp(argv[1], "iram") == 0) {
+ ccdbg_write_memory(s51_dbg, address + 0xff00, data, len);
+ } else if (strcmp(argv[1], "sfr") == 0) {
+ ccdbg_write_sfr(s51_dbg, (uint8_t) address, data, len);
+ } else
+ ret = command_error;
+ free(data);
+ return ret;
}
enum command_result
command_dump (int argc, char **argv)
{
+ if (argv[1]) {
+ if (strcmp(argv[1], "rom") == 0 ||
+ strcmp(argv[1], "xram") == 0)
+ return command_dx(argc-1, argv+1);
+ if (strcmp(argv[1], "iram") == 0)
+ return command_di(argc-1, argv+1);
+ if (strcmp(argv[1], "sfr") == 0)
+ return command_ds(argc-1, argv+1);
+ }
return command_error;
}
enum command_result
command_file (int argc, char **argv)
{
+ struct hex_file *hex;
+ struct hex_image *image;
+ FILE *file;
+
if (argc != 2)
return command_error;
- s51_printf("some words read from %s\n", argv[1]);
+ file = fopen (argv[1], "r");
+ if (!file)
+ return command_error;
+ hex = ccdbg_hex_file_read(file, argv[1]);
+ fclose(file);
+ if (!hex)
+ return command_error;
+ if (hex->nrecord == 0) {
+ ccdbg_hex_file_free(hex);
+ return command_error;
+ }
+ image = ccdbg_hex_image_create(hex);
+ ccdbg_hex_file_free(hex);
+ start_address = image->address;
+ ccdbg_set_rom(s51_dbg, image);
return command_success;
}
disable_breakpoint(int b)
{
uint8_t status;
-
+
status = ccdbg_set_hw_brkpnt(s51_dbg, b, 0, breakpoints[b].address);
if (status != 0x00 && status != 0xff)
s51_printf("disable_breakpoint status 0x%02x\n", status);
enable_breakpoint(int b)
{
uint8_t status;
-
+
status = ccdbg_set_hw_brkpnt(s51_dbg, b, 1, breakpoints[b].address);
if (status != 0xff)
s51_printf("enable_breakpoint status 0x%02x\n", status);
}
+static void
+enable_breakpoints(void)
+{
+ int b;
+ for (b = 0; b < CC_NUM_BREAKPOINTS; b++)
+ if (breakpoints[b].enabled)
+ enable_breakpoint(b);
+}
+
enum command_result
set_breakpoint(uint16_t address, int temporary)
{
break;
if (b == CC_NUM_BREAKPOINTS)
return -1;
- if (breakpoints[b].temporary)
- clear_breakpoint(address, 1);
+ return b;
}
enum command_result
pc = pc - 1;
code = 104;
reason = "Breakpoint";
+ b = find_breakpoint(pc);
+ if (b != -1 && breakpoints[b].temporary)
+ clear_breakpoint(pc, 1);
ccdbg_set_pc(s51_dbg, pc);
} else {
code = 105;
uint16_t pc;
uint8_t status;
int b;
-
+
if (argv[1]) {
result = parse_uint16(argv[1], &start);
if (result != command_success)
if (result != command_success)
return result;
}
+ if (start_address && start == 0) {
+ start = start_address;
+ s51_printf("Starting at 0x%04x\n", start);
+ }
ccdbg_set_pc(s51_dbg, start);
}
else
enum command_result
command_load (int argc, char **argv)
{
- return command_error;
+ char *filename = argv[1];
+ FILE *file;
+ struct hex_file *hex;
+ struct hex_image *image;
+
+ if (!filename)
+ return command_error;
+ file = fopen(filename, "r");
+ if (!file) {
+ perror(filename);
+ return command_error;
+ }
+ hex = ccdbg_hex_file_read(file, filename);
+ fclose(file);
+ if (!hex) {
+ return command_error;
+ }
+ image = ccdbg_hex_image_create(hex);
+ ccdbg_hex_file_free(hex);
+ if (!image) {
+ fprintf(stderr, "image create failed\n");
+ return command_error;
+ }
+ if (image->address >= 0xf000) {
+ printf("Loading %d bytes to RAM at 0x%04x\n",
+ image->length, image->address);
+ ccdbg_write_hex_image(s51_dbg, image, 0);
+ } else {
+ fprintf(stderr, "Can only load to RAM\n");
+ }
+ ccdbg_hex_image_free(image);
+ return command_success;
}
enum command_result
return command_success;
}
+enum command_result
+command_stop (int argc, char **argv)
+{
+ return command_success;
+}
+
enum command_result
command_reset (int argc, char **argv)
{
ccdbg_debug_mode(s51_dbg);
+ ccdbg_halt(s51_dbg);
+ enable_breakpoints();
return command_success;
}
return command_success;
}
+static enum command_result
+info_breakpoints(int argc, char **argv)
+{
+ int b;
+ uint16_t address;
+ enum command_result result;
+
+ if (argc == 1) {
+ s51_printf("Num Type Disp Hit Cnt Address What\n");
+ for (b = 0; b < CC_NUM_BREAKPOINTS; b++)
+ if (breakpoints[b].enabled) {
+ s51_printf("%-3d fetch %s 1 1 0x%04x uc::disass() unimplemented\n",
+ b,
+ breakpoints[b].temporary ? "del " : "keep",
+ breakpoints[b].address);
+ }
+ return command_success;
+ }
+
+}
+
+static enum command_result
+info_help(int argc, char **argv);
+
+static struct command_function infos[] = {
+ { "breakpoints", "b", info_breakpoints, "[b]reakpoints",
+ "List current breakpoints\n" },
+ { "help", "?", info_help, "help",
+ "Print this list\n" },
+
+ { NULL, NULL, NULL, NULL, NULL },
+};
+
+static enum command_result
+info_help(int argc, char **argv)
+{
+ return command_function_help(infos, argc, argv);
+}
+
+enum command_result
+command_info(int argc, char **argv)
+{
+ struct command_function *func;
+
+ if (argc < 2)
+ return command_error;
+ func = command_string_to_function(infos, argv[1]);
+ if (!func)
+ return command_syntax;
+ return (*func->func)(argc-1, argv+1);
+}
+
enum command_result
cc_wait(void)
{
return command_success;
}
if (s51_interrupted || s51_check_input()) {
-
+
ccdbg_halt(s51_dbg);
status = ccdbg_read_status(s51_dbg);
cc_stopped(status);
}
}
}
-
projects / fw / altos / blobdiff