public MachineCPU(int cpu_type, int cpu_clock,
MemoryReadAddress[] memory_read, MemoryWriteAddress[] memory_write,
IOReadPort[] port_read, IOWritePort[] port_write,
vblank_interrupt_callback vblank_interrupt, int vblank_interrupts_per_frame,
vblank_interrupt_callback interrupt = null, int ips = 0)
{
this.cpu_type = cpu_type; this.cpu_clock = cpu_clock;
this.memory_read = memory_read; this.memory_write = memory_write;
this.port_read = port_read; this.port_write = port_write;
this.vblank_interrupt = vblank_interrupt; this.vblank_interrupts_per_frame = vblank_interrupts_per_frame;
this.timed_interrupt = interrupt;
this.timed_interrupts_per_second = ips;
}
IOReadPort[] install_port_read_handler_common(int cpu, int start, int end, mem_read_handler handler, int install_at_beginning)
{
int i, oldsize;
oldsize = readport_size[cpu];
readport_size[cpu]++;
if (readport[cpu] == null)
{
readport[cpu] = new IOReadPort[readport_size[cpu]];
}
else
{
Array.Resize<IOReadPort>(ref readport[cpu], readport_size[cpu]);
}
if (readport[cpu] == null) return null;
if (install_at_beginning != 0)
{
/* can't do a single memcpy because it doesn't handle overlapping regions correctly??? */
for (i = oldsize; i >= 1; i--)
{
Array.Copy(readport[cpu], i - 1, readport[cpu], i, 1);
//memcpy(&readport[cpu][i], &readport[cpu][i - 1], sizeof(struct IOReadPort));
}
i = 0;
}
else
{
i = oldsize;
}
readport[cpu][i] = new IOReadPort();
readport[cpu][i].start = start;
readport[cpu][i].end = end;
readport[cpu][i].handler = handler;
return readport[cpu];
}