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debugger: add dump command for dumping memory.

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This commit is contained in:
Maxim Poliakovski 2020-02-23 17:52:30 +01:00
parent 461d859e73
commit b6768d7168
1 changed files with 101 additions and 1 deletions
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102
debugger/debugger.cpp
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@ -9,6 +9,7 @@
#include <string>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <fstream>
#include <map>
#include "ppcemu.h"
@ -39,7 +40,9 @@ static void show_help()
cout << " until X -- execute until address X is reached" << endl;
cout << " regs -- dump content of the GRPs" << endl;
cout << " set R=X -- assign value X to register R" << endl;
cout << " memdump -- dump content of the system memory to memdump.bin" << endl;
cout << " dump NT,X -- dump N memory cells of size T at address X" << endl;
cout << " T can be b(byte), w(word), d(double)," << endl;
cout << " q(quad) or c(character)." << endl;
#ifdef PROFILER
cout << " profiler -- show stats related to the processor" << endl;
#endif
@ -64,6 +67,98 @@ static void disasm(uint32_t inst_num = 1UL, uint32_t address = ppc_state.ppc_pc)
}
}
static void dump_mem(string& params)
{
int cell_size, chars_per_line;
bool is_char;
uint32_t count, addr;
uint64_t val;
string num_type_str, addr_str;
num_type_str = params.substr(0, params.find(","));
addr_str = params.substr(params.find(",") + 1);
is_char = false;
switch(num_type_str.back()) {
case 'b':
case 'B':
cell_size = 1;
break;
case 'w':
case 'W':
cell_size = 2;
break;
case 'd':
case 'D':
cell_size = 4;
break;
case 'q':
case 'Q':
cell_size = 8;
break;
case 'c':
case 'C':
cell_size = 1;
is_char = true;
break;
default:
cout << "Invalid data type " << num_type_str << endl;
return;
}
try {
num_type_str = num_type_str.substr(0, num_type_str.length() - 1);
count = str2addr(num_type_str);
}
catch (invalid_argument& exc) {
cout << exc.what() << endl;
return;
}
try {
addr = str2addr(addr_str);
}
catch (invalid_argument& exc) {
try {
/* number conversion failed, trying reg name */
addr = get_reg(addr_str);
}
catch (invalid_argument& exc) {
cout << exc.what() << endl;
return;
}
}
cout << "Dumping memory at address " << hex << addr << ":" << endl;
chars_per_line = 0;
try {
for (int i = 0; i < count; addr += cell_size, i++) {
if (chars_per_line + cell_size * 2 > 80) {
cout << endl;
chars_per_line = 0;
}
val = mem_read_dbg(addr, cell_size);
if (is_char) {
cout << (char)val;
chars_per_line += cell_size;
} else {
cout << setw(cell_size * 2) << setfill('0') << uppercase <<
hex << val << " ";
chars_per_line += cell_size * 2 + 2;
}
}
}
catch (invalid_argument& exc) {
cout << exc.what() << endl;
return;
}
cout << endl << endl;
}
void enter_debugger()
{
string inp, cmd, addr_str, expr_str, reg_expr, last_cmd, reg_value_str, inst_string, inst_num_str;
@ -166,6 +261,11 @@ void enter_debugger()
disasm();
}
}
else if (cmd == "dump") {
expr_str = "";
ss >> expr_str;
dump_mem(expr_str);
}
else {
cout << "Unknown command: " << cmd << endl;
continue;