void darkedge_fd1149_vblank(void)
{
program_write_word(0x20f072, 0);
program_write_word(0x20f082, 0);
if( program_read_byte(0x20a12c) != 0 )
{
program_write_byte(0x20a12c, program_read_byte(0x20a12c)-1 );
if( program_read_byte(0x20a12c) == 0 )
program_write_byte(0x20a12e, 1);
}
}
static WRITE16_HANDLER( protection_w )
{
COMBINE_DATA(prot+offset);
if (offset == 1)
{
UINT32 cmd = (prot[0] << 16) | prot[1];
switch (cmd >> 24)
{
case 0x64:
{
UINT32 param1 = (program_read_word(cmd & 0xffffff) << 16)
| program_read_word((cmd & 0xffffff) + 2);
UINT32 param2 = (program_read_word((cmd & 0xffffff) + 4) << 16)
| program_read_word((cmd & 0xffffff) + 6);
switch (param1 >> 24)
{
case 0x22:
{
int size = param2 >> 24;
param1 &= 0xffffff;
param2 &= 0xffffff;
while(size >= 0)
{
program_write_word(param2, program_read_word(param1));
param1 += 2;
param2 += 2;
size--;
}
break;
}
}
break;
}
}
}
