diff options
author | 2024-11-17 14:49:13 +0100 | |
---|---|---|
committer | 2024-11-17 19:02:04 +0100 | |
commit | 2950b39bc712ea2afe43cc456fd34abe95113daf (patch) | |
tree | 6fdca574d776d26e55e57968d5fb7d20d8202628 /src/devices/bus | |
parent | 40d8c5c343efc497524832d59a6d0e2b8e59376b (diff) |
video/pc_vga_tseng: stub ACL/MMU infrastracture
Diffstat (limited to 'src/devices/bus')
-rw-r--r-- | src/devices/bus/isa/svga_tseng.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/devices/bus/isa/svga_tseng.cpp b/src/devices/bus/isa/svga_tseng.cpp index 5aafc957f17..7dee75b727a 100644 --- a/src/devices/bus/isa/svga_tseng.cpp +++ b/src/devices/bus/isa/svga_tseng.cpp @@ -201,16 +201,20 @@ void isa16_svga_et4k_w32i_device::remap(int space_id, offs_t start, offs_t end) if (space_id == AS_PROGRAM) { m_isa->install_memory(0xa0000, 0xbffff, read8sm_delegate(*m_vga, FUNC(tseng_vga_device::mem_r)), write8sm_delegate(*m_vga, FUNC(tseng_vga_device::mem_w))); + // TODO: can be disabled or narrowed thru TS Auxiliary Mode m_isa->install_rom(this, 0xc0000, 0xc7fff, "vga_rom"); } else if (space_id == AS_IO) { - m_isa->install_device(0x03b0, 0x03df, *this, &isa16_svga_et4k_w32i_device::io_isa_map); + m_isa->install_device(0x0000, 0xffff, *this, &isa16_svga_et4k_w32i_device::io_isa_map); } } void isa16_svga_et4k_w32i_device::io_isa_map(address_map &map) { - map(0x00, 0x2f).m(m_vga, FUNC(tseng_vga_device::io_map)); + map(0x03b0, 0x03df).m(m_vga, FUNC(et4kw32i_vga_device::io_map)); + // IOD controls mirroring + map(0x210a, 0x210a).mirror(0x70).rw(m_vga, FUNC(et4kw32i_vga_device::acl_index_r), FUNC(et4kw32i_vga_device::acl_index_w)); + map(0x210b, 0x210b).mirror(0x70).rw(m_vga, FUNC(et4kw32i_vga_device::acl_data_r), FUNC(et4kw32i_vga_device::acl_data_w)); } |