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breakpoints

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This commit is contained in:
folkert van heusden 2022-04-11 21:00:42 +02:00
parent 9d367e02ae
commit 9c7632fb1c
3 changed files with 26 additions and 0 deletions
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15
cpu.cpp
View file

@ -30,6 +30,21 @@ void cpu::emulation_start()
running_since = get_ms(); running_since = get_ms();
} }
bool cpu::check_breakpoint()
{
return breakpoints.find(getPC()) != breakpoints.end();
}
void cpu::set_breakpoint(const uint16_t addr)
{
breakpoints.insert(addr);
}
void cpu::remove_breakpoint(const uint16_t addr)
{
breakpoints.erase(addr);
}
uint64_t cpu::get_instructions_executed_count() uint64_t cpu::get_instructions_executed_count()
{ {
// this may wreck havoc as it is not protected by a mutex // this may wreck havoc as it is not protected by a mutex

6
cpu.h
View file

@ -28,6 +28,8 @@ private:
// level, vector // level, vector
std::map<uint8_t, std::set<uint8_t> > queued_interrupts; std::map<uint8_t, std::set<uint8_t> > queued_interrupts;
std::set<uint16_t> breakpoints;
bus *const b { nullptr }; bus *const b { nullptr };
uint32_t *const event { nullptr }; uint32_t *const event { nullptr };
@ -62,6 +64,10 @@ public:
explicit cpu(bus *const b, uint32_t *const event); explicit cpu(bus *const b, uint32_t *const event);
~cpu(); ~cpu();
bool check_breakpoint();
void set_breakpoint(const uint16_t addr);
void remove_breakpoint(const uint16_t addr);
void disassemble(void) const; void disassemble(void) const;
std::map<std::string, std::vector<std::string> > disassemble(const uint16_t addr) const; std::map<std::string, std::vector<std::string> > disassemble(const uint16_t addr) const;

5
main.cpp
View file

@ -273,8 +273,13 @@ int main(int argc, char *argv[])
if (tracing) if (tracing)
c->disassemble(); c->disassemble();
if (c->check_breakpoint())
break;
c->step(); c->step();
} }
// TODO: some menu
} }
else { else {
while(!event && !terminate) while(!event && !terminate)