UINT32 igs028_device::olds_read_reg(UINT16 addr)
{
UINT32 protaddr = (olds_prot_addr(addr) - 0x400000) / 2;
return m_sharedprotram[protaddr] << 16 | m_sharedprotram[protaddr + 1];
}
uint32_t igs028_device::olds_read_reg(uint16_t addr)
{
uint32_t protaddr = (olds_prot_addr(addr) - 0x400000) / 2;
return m_sharedprotram[protaddr] << 16 | m_sharedprotram[protaddr + 1];
}
case 0x7: return 0x403000;
case 0x9: return 0x40306e;
}
return 0;
}
UINT32 igs028_device::olds_read_reg(UINT16 addr)
{
UINT32 protaddr = (olds_prot_addr(addr) - 0x400000) / 2;
return m_sharedprotram[protaddr] << 16 | m_sharedprotram[protaddr + 1];
}
void igs028_device::olds_write_reg( UINT16 addr, UINT32 val )
{
m_sharedprotram[((olds_prot_addr(addr) - 0x400000) / 2) + 0] = val >> 16;
m_sharedprotram[((olds_prot_addr(addr) - 0x400000) / 2) + 1] = val & 0xffff;
}
void igs028_device::IGS028_do_dma(UINT16 src, UINT16 dst, UINT16 size, UINT16 mode)
{
UINT16 param = mode >> 8;
UINT16 *PROTROM = (UINT16*)memregion(":user1")->base();
// logerror ("mode: %2.2x, src: %4.4x, dst: %4.4x, size: %4.4x, data: %4.4x\n", (mode &0xf), src, dst, size, mode);
mode &= 0x0f;
switch (mode & 0x7)
{
// igs022 has an 'IGS ' encryption mode, a plain copy, and a NOP, these aren't covered at the moment..
UINT32 pgm_028_025_state::olds_read_reg(UINT16 addr)
{
UINT32 protaddr = (olds_prot_addr(addr) - 0x400000) / 2;
return m_sharedprotram[protaddr] << 16 | m_sharedprotram[protaddr + 1];
}