Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-22 16:31:49 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

machine/sis85c496.cpp: revert IDE to standard mapping for now (works slightly better for CD-ROM)

Browse Source
This commit is contained in:
angelosa 2023-07-01 04:15:41 +02:00
parent 9be8bb6ad2
commit 4f0ae97505
1 changed files with 8 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
src/devices/machine/sis85c496.cpp
View File

@ -362,18 +362,17 @@ void sis85c496_host_device::map_extra(uint64_t memory_window_start, uint64_t mem
if (BIT(m_ide_vesa_ctrl, 8))
{
const bool main_ch_select = bool(BIT(m_ide_vesa_ctrl, 9));
io_space->install_readwrite_handler(0x1f0, 0x1f7, read32s_delegate(*m_ide[main_ch_select], FUNC(ide_controller_32_device::cs0_r)), write32s_delegate(*m_ide[main_ch_select], FUNC(ide_controller_32_device::cs0_w)), 0xffffffff);
// TODO: doesn't seem to work right for anything after IDE[0] primary
// bit 9: swaps IDE channels
io_space->install_readwrite_handler(0x170, 0x177, read32s_delegate(*m_ide[1], FUNC(ide_controller_32_device::cs0_r)), write32s_delegate(*m_ide[1], FUNC(ide_controller_32_device::cs0_w)));
if (!BIT(m_ide_vesa_ctrl, 7))
io_space->install_readwrite_handler(0x3f0, 0x3f7, read32s_delegate(*m_ide[main_ch_select], FUNC(ide_controller_32_device::cs1_r)), write32s_delegate(*m_ide[main_ch_select], FUNC(ide_controller_32_device::cs1_w)));
io_space->install_readwrite_handler(0x1f0, 0x1f7, read32s_delegate(*m_ide[0], FUNC(ide_controller_32_device::cs0_r)), write32s_delegate(*m_ide[0], FUNC(ide_controller_32_device::cs0_w)));
const bool sub_ch_select = main_ch_select ^ 1;
//if (!BIT(m_ide_vesa_ctrl, 6))
io_space->install_readwrite_handler(0x370, 0x377, read32s_delegate(*m_ide[1], FUNC(ide_controller_32_device::cs1_r)), write32s_delegate(*m_ide[1], FUNC(ide_controller_32_device::cs1_w)));
io_space->install_readwrite_handler(0x170, 0x177, read32s_delegate(*m_ide[sub_ch_select], FUNC(ide_controller_32_device::cs0_r)), write32s_delegate(*m_ide[sub_ch_select], FUNC(ide_controller_32_device::cs0_w)), 0xffffffff);
if (!BIT(m_ide_vesa_ctrl, 6))
io_space->install_readwrite_handler(0x370, 0x377, read32s_delegate(*m_ide[sub_ch_select], FUNC(ide_controller_32_device::cs1_r)), write32s_delegate(*m_ide[sub_ch_select], FUNC(ide_controller_32_device::cs1_w)));
//if (!BIT(m_ide_vesa_ctrl, 7))
io_space->install_readwrite_handler(0x3f0, 0x3f7, read32s_delegate(*m_ide[0], FUNC(ide_controller_32_device::cs1_r)), write32s_delegate(*m_ide[0], FUNC(ide_controller_32_device::cs1_w)));
}
// 32 megs of RAM (todo: don't hardcode)