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examine/e command

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folkert van heusden 2022-06-02 21:26:33 +02:00
parent c8e77ff092
commit 2268d7c9f7
1 changed files with 21 additions and 0 deletions
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21
debugger.cpp
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@ -126,6 +126,8 @@ void debugger(console *const cnsl, bus *const b, std::atomic_bool *const interru
int pc = kv.find("pc") != kv.end() ? std::stoi(kv.find("pc")->second, nullptr, 8) : c->getPC();
int n = kv.find("n") != kv.end() ? std::stoi(kv.find("n") ->second, nullptr, 10) : 1;
cnsl->put_string_lf(format("Disassemble %d instructions starting at %o", n, pc));
bool show_registers = kv.find("pc") == kv.end();
for(int i=0; i<n; i++) {
@ -136,6 +138,24 @@ void debugger(console *const cnsl, bus *const b, std::atomic_bool *const interru
continue;
}
else if (parts[0] == "examine" || parts[0] == "e") {
if (parts.size() != 3)
cnsl->put_string_lf("parameter missing");
else {
int addr = std::stoi(parts[2], nullptr, 8);
int val = -1;
if (parts[1] == "B" || parts[1] == "b")
val = b->read(addr, true, false, true);
else if (parts[1] == "W" || parts[1] == "w")
val = b->read(addr, false, false, true);
else
cnsl->put_string_lf("expected b or w");
if (val != -1)
cnsl->put_string_lf(format("value at %06o, octal: %o, hex: %x, dec: %d\n", addr, val, val, val));
}
}
else if (cmd == "reset" || cmd == "r") {
#if defined(ESP32)
ESP.restart();
@ -160,6 +180,7 @@ void debugger(console *const cnsl, bus *const b, std::atomic_bool *const interru
#if !defined(ESP32)
cnsl->put_string_lf("quit/q - stop emulator");
#endif
cnsl->put_string_lf("examine/e - show memory address (<b|w> <octal address>)");
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("sbp/cbp/lbp - set/clear/list breakpoint(s)");