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Bringing back joypad read count for lag frame detection

This commit is contained in:
SergioMartin86 2024-02-26 18:45:31 +00:00
parent 3e62e3fd30
commit c790c0df18
1 changed files with 10 additions and 0 deletions
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10
source/quickerNES/core/core.hpp
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@ -484,6 +484,10 @@ void disableStateBlock(const std::string& block)
nes_time_t emulate_frame(uint32_t joypad1, uint32_t joypad2) nes_time_t emulate_frame(uint32_t joypad1, uint32_t joypad2)
{ {
#ifdef _QUICKERNES_DETECT_JOYPAD_READS
joypad_read_count = 0;
#endif
current_joypad[0] = joypad1; current_joypad[0] = joypad1;
current_joypad[1] = joypad2; current_joypad[1] = joypad2;
@ -559,6 +563,7 @@ void disableStateBlock(const std::string& block)
Mapper *mapper; Mapper *mapper;
nes_state_t nes; nes_state_t nes;
Ppu ppu; Ppu ppu;
int joypad_read_count = 0;
private: private:
// noncopyable // noncopyable
@ -609,6 +614,11 @@ void disableStateBlock(const std::string& block)
{ {
if ((addr & 0xFFFE) == 0x4016) if ((addr & 0xFFFE) == 0x4016)
{ {
// For performance's sake, this counter is only kept on demand
#ifdef _QUICKERNES_DETECT_JOYPAD_READS
joypad_read_count++;
#endif
// to do: to aid with recording, doesn't emulate transparent latch, // to do: to aid with recording, doesn't emulate transparent latch,
// so a game that held strobe at 1 and read $4016 or $4017 would not get // so a game that held strobe at 1 and read $4016 or $4017 would not get
// the current A status as occurs on a NES // the current A status as occurs on a NES