public NuSystem(Gpu gpu)
{
Memory = new MemoryManager
{
SRAM = new MemoryRAM(MemoryMap.SRAM_START, MemoryMap.SRAM_SIZE), // 1MB SRAM
DRAM = new MemoryRAM(MemoryMap.DRAM_START, MemoryMap.DRAM_SIZE), // 8MB DRAM
IOBuffer = new IODevice(MemoryMap.IO_START, MemoryMap.IO_SIZE) // 64K IO space in bank $7F
};
this.CPU = new CPU(Memory);
this.CPU.SimulatorCommand += CPU_SimulatorCommand;
this.gpu = gpu;
gpu.VRAM = Memory.DRAM;
gpu.CodeRAM = Memory.SRAM;
gpu.LoadCharacterData(Memory.DRAM, Memory.SRAM);
KeyboardBuffer = new MemoryBuffer(
Memory.SRAM,
MemoryMap.KEY_BUFFER,
MemoryMap.KEY_BUFFER_SIZE,
MemoryMap.KEY_BUFFER_RPOS,
MemoryMap.KEY_BUFFER_WPOS);
for (int i = MemoryMap.SCREEN_PAGE0; i < MemoryMap.SCREEN_PAGE1; i++)
{
this.Memory[i] = 64;
}
this.Basic = new Basic.Immediate(this);
this.Monitor = new Monitor.Monitor(this);
}
