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debugger enhancements

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This commit is contained in:
folkert van heusden 2022-11-10 13:26:45 +01:00
parent 13d3825d73
commit f3e234d9d3
2 changed files with 50 additions and 14 deletions
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2
cpu.cpp
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@ -1336,7 +1336,7 @@ bool cpu::single_operand_instructions(const uint16_t instr)
set_flags = a != ADDR_PSW; set_flags = a != ADDR_PSW;
b -> write(a, false, v, true); // put in '13/12' address space b->write(a, false, v, true); // put in '13/12' address space
} }
if (set_flags) { if (set_flags) {

62
debugger.cpp
View file

@ -120,6 +120,7 @@ void debugger(console *const cnsl, bus *const b, std::atomic_uint32_t *const sto
{ {
int32_t trace_start_addr = -1; int32_t trace_start_addr = -1;
bool tracing = tracing_in; bool tracing = tracing_in;
int n_single_step = 1;
cpu *const c = b->getCpu(); cpu *const c = b->getCpu();
@ -137,8 +138,14 @@ void debugger(console *const cnsl, bus *const b, std::atomic_uint32_t *const sto
if (cmd == "go") if (cmd == "go")
single_step = false; single_step = false;
else if (cmd == "single" || cmd == "s") else if (parts[0] == "single" || parts[0] == "s") {
single_step = true; single_step = true;
if (parts.size() == 2)
n_single_step = atoi(parts[1].c_str());
else
n_single_step = 1;
}
else if ((parts[0] == "sbp" || parts[0] == "cbp") && parts.size() == 2){ else if ((parts[0] == "sbp" || parts[0] == "cbp") && parts.size() == 2){
uint16_t pc = std::stoi(parts[1].c_str(), nullptr, 8); uint16_t pc = std::stoi(parts[1].c_str(), nullptr, 8);
@ -211,21 +218,50 @@ void debugger(console *const cnsl, bus *const b, std::atomic_uint32_t *const sto
continue; continue;
} }
else if (parts[0] == "examine" || parts[0] == "e") { else if (parts[0] == "examine" || parts[0] == "e") {
if (parts.size() != 3) if (parts.size() < 3)
cnsl->put_string_lf("parameter missing"); cnsl->put_string_lf("parameter missing");
else { else {
int addr = std::stoi(parts[2], nullptr, 8); int addr = std::stoi(parts[2], nullptr, 8);
int val = -1; int val = -1;
if (parts[1] == "B" || parts[1] == "b") int n = parts.size() == 4 ? atoi(parts[3].c_str()) : 1;
val = b->read(addr, true, false, true); bool word = parts[1] == "w";
else if (parts[1] == "W" || parts[1] == "w")
val = b->read(addr, false, false, true); if (parts[1] != "w" && parts[1] != "b") {
else
cnsl->put_string_lf("expected b or w"); cnsl->put_string_lf("expected b or w");
if (val != -1) continue;
cnsl->put_string_lf(format("value at %06o, octal: %o, hex: %x, dec: %d\n", addr, val, val, val)); }
std::string out;
for(int i=0; i<n; i++) {
if (!word)
val = b->read(addr + i, true, false, true);
else if (word)
val = b->read(addr + i, false, false, true);
if (val == -1) {
cnsl->put_string_lf(format("Can't read from %06o\n", addr + i));
break;
}
if (n == 1)
cnsl->put_string_lf(format("value at %06o, octal: %o, hex: %x, dec: %d\n", addr + i, val, val, val));
if (n > 1) {
if (i > 0)
out += " ";
if (word)
out += format("%06o", val);
else
out += format("%03o", val);
}
}
if (n > 1)
cnsl->put_string_lf(out);
} }
continue; continue;
@ -252,7 +288,7 @@ void debugger(console *const cnsl, bus *const b, std::atomic_uint32_t *const sto
#if !defined(ESP32) #if !defined(ESP32)
cnsl->put_string_lf("quit/q - stop emulator"); cnsl->put_string_lf("quit/q - stop emulator");
#endif #endif
cnsl->put_string_lf("examine/e - show memory address (<b|w> <octal address>)"); cnsl->put_string_lf("examine/e - show memory address (<b|w> <octal address> [<n>])");
cnsl->put_string_lf("reset/r - reset cpu/bus/etc"); cnsl->put_string_lf("reset/r - reset cpu/bus/etc");
cnsl->put_string_lf("single/s - run 1 instruction (implicit 'disassemble' command)"); cnsl->put_string_lf("single/s - run 1 instruction (implicit 'disassemble' command)");
cnsl->put_string_lf("sbp/cbp/lbp - set/clear/list breakpoint(s)"); cnsl->put_string_lf("sbp/cbp/lbp - set/clear/list breakpoint(s)");
@ -287,7 +323,7 @@ void debugger(console *const cnsl, bus *const b, std::atomic_uint32_t *const sto
c->step_b(); c->step_b();
if (single_step) if (single_step && --n_single_step == 0)
break; break;
} }