private void Cpu_BeforeInstructionFetch(object sender, BeforeInstructionFetchEventArgs e)
{
if (cpu.Registers.PC == EXTBIO)
{
HandleExtbioCall();
}
if (cpu.Registers.PC == EntryPointAddress && slots.GetCurrentSlot(1) == slotNumber)
{
HandleEntryPointCall();
}
}
private void CpuOnBeforeInstructionFetch(object sender, BeforeInstructionFetchEventArgs e)
{
if (!hookedMethods.ContainsKey(regs.PC))
{
return;
}
if (segmentNumber == null &&
(mappedRam = slotsSystem.GetSlotContents(slotsSystem.GetCurrentSlot(1)) as IMappedRam) != null &&
ExtractString(0x4000, 14) == "FileSysDriver")
{
segmentNumber = mappedRam.GetBlockInBank(1);
}
if (segmentNumber != null &&
mappedRam?.GetBlockInBank(1) == segmentNumber.Value &&
slotsSystem.GetSlotContents(slotsSystem.GetCurrentSlot(1)) == mappedRam)
{
hookedMethods[regs.PC]();
cpu.ExecuteRet();
}
}
private void BeforeZ80InstructionFetch(ushort instructionAddress)
{
if (memory.GetCurrentSlot(1) != slotNumber)
{
return;
}
if (kernelRoutines.ContainsKey(z80.Registers.PC))
{
var routine = kernelRoutines[z80.Registers.PC];
routine();
z80.ExecuteRet();
}
}