#include #include #include #include #include "ps2drv.h" #include "memory.h" #include "spiram.h" #include "cpu.h" #include "hardware.h" Memory memory; PS2Driver ps2; spiram sram(SPIRAM_SIZE); UTFT utft(TFT_MODEL, TFT_RS, TFT_WR, TFT_CS, TFT_RST); static CPU *_cpu; bool hardware_reset() { extern SPIClass SPIRAM_DEV; SPIRAM_DEV.begin(); SPIRAM_DEV.setModule(SPIRAM_SPI); SPIRAM_DEV.setClockDivider(SPI_CLOCK_DIV8); SPIRAM_DEV.setDataMode(SPI_MODE0); bool sd = SD.begin(SD_CS, 2, SD_SPI); pinMode(SPI_CS, OUTPUT); // without this, the SPI-RAM isn't seen #if defined(TFT_BACKLIGHT) digitalWrite(TFT_BACKLIGHT, HIGH); #endif utft.InitLCD(); _cpu->reset(); return sd; } void hardware_init(CPU &cpu) { _cpu = &cpu; memory.begin(); ps2.begin(KBD_DATA, KBD_IRQ); #if defined(TFT_BACKLIGHT) pinMode(TFT_BACKLIGHT, OUTPUT); #endif pinMode(SD_CS, OUTPUT); digitalWrite(SD_CS, HIGH); pinMode(SPIRAM_CS, OUTPUT); digitalWrite(SPIRAM_CS, HIGH); } void hardware_checkpoint(Stream &s) { unsigned ds = 0; for (unsigned i = 0; i < 0x10000; i += ds) { Memory::Device *dev = memory.get(i); dev->checkpoint(s); ds = dev->pages() * Memory::page_size; } _cpu->checkpoint(s); } void hardware_restore(Stream &s) { unsigned ds = 0; for (unsigned i = 0; i < 0x10000; i += ds) { Memory::Device *dev = memory.get(i); dev->restore(s); ds = dev->pages() * Memory::page_size; } _cpu->restore(s); }