mirror of
https://github.com/holub/mame
synced 2025-04-16 13:34:55 +03:00
stv.cpp: moved the few remaining protection functions in stvprot.cpp to the driver file and eliminated strvprot.*
This commit is contained in:
Ivan Vangelista
parent
c5e60d1554
commit
682090918b
@ -3631,8 +3631,6 @@ files {
|
||||
MAME_DIR .. "src/mame/machine/saturn_cdb.cpp",
|
||||
MAME_DIR .. "src/mame/machine/saturn_cdb.h",
|
||||
MAME_DIR .. "src/mame/includes/stv.h",
|
||||
MAME_DIR .. "src/mame/machine/stvprot.cpp",
|
||||
MAME_DIR .. "src/mame/machine/stvprot.h",
|
||||
MAME_DIR .. "src/mame/machine/315-5838_317-0229_comp.cpp",
|
||||
MAME_DIR .. "src/mame/machine/315-5838_317-0229_comp.h",
|
||||
MAME_DIR .. "src/mame/drivers/suprloco.cpp",
|
||||
|
||||
@ -9,7 +9,7 @@
|
||||
|
||||
TODO:
|
||||
- clean this up!
|
||||
- Properly emulate the protection chips, used by several games (check stvprot.cpp for more info)
|
||||
- Properly emulate the protection chips, used by several games
|
||||
|
||||
(per-game issues)
|
||||
- stress: accesses the Sound Memory Expansion Area (0x05a80000-0x05afffff), unknown purpose;
|
||||
@ -43,7 +43,6 @@
|
||||
#include "cpu/sh/sh2.h"
|
||||
#include "machine/smpc.h"
|
||||
#include "machine/stvcd.h"
|
||||
#include "machine/stvprot.h"
|
||||
#include "sound/scsp.h"
|
||||
|
||||
#include "softlist.h"
|
||||
@ -264,6 +263,93 @@ void stv_state::hop_ioga_w(offs_t offset, uint8_t data)
|
||||
stv_ioga_w(offset, data);
|
||||
}
|
||||
|
||||
|
||||
// ST-V hookup for 315-5881 encryption/compression chip
|
||||
|
||||
/*
|
||||
Known ST-V Games using this kind of protection
|
||||
|
||||
Astra Superstars (text layer gfx transfer)
|
||||
Elandoree (gfx transfer of textures)
|
||||
Final Fight Revenge (boot vectors etc.)
|
||||
Radiant Silvergun (game start protection)
|
||||
Steep Slope Sliders (gfx transfer of character portraits)
|
||||
Tecmo World Cup '98 (Tecmo logo, player movement)
|
||||
|
||||
*/
|
||||
|
||||
/*************************************
|
||||
*
|
||||
* Common Handlers
|
||||
*
|
||||
*************************************/
|
||||
|
||||
uint32_t stv_state::common_prot_r(offs_t offset)
|
||||
{
|
||||
uint32_t *ROM = (uint32_t *)memregion("abus")->base();
|
||||
|
||||
if(m_abus_protenable & 0x00010000)//protection calculation is activated
|
||||
{
|
||||
if(offset == 3)
|
||||
{
|
||||
uint8_t* base;
|
||||
uint16_t res = m_cryptdevice->do_decrypt(base);
|
||||
uint16_t res2 = m_cryptdevice->do_decrypt(base);
|
||||
res = ((res & 0xff00) >> 8) | ((res & 0x00ff) << 8);
|
||||
res2 = ((res2 & 0xff00) >> 8) | ((res2 & 0x00ff) << 8);
|
||||
|
||||
return res2 | (res << 16);
|
||||
}
|
||||
return m_a_bus[offset];
|
||||
}
|
||||
else
|
||||
{
|
||||
if(m_a_bus[offset] != 0) return m_a_bus[offset];
|
||||
else return ROM[(0x02fffff0/4)+offset];
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
uint16_t stv_state::crypt_read_callback(uint32_t addr)
|
||||
{
|
||||
uint16_t dat= m_maincpu->space().read_word((0x02000000+2*addr));
|
||||
return ((dat&0xff00)>>8)|((dat&0x00ff)<<8);
|
||||
}
|
||||
|
||||
void stv_state::common_prot_w(offs_t offset, uint32_t data, uint32_t mem_mask)
|
||||
{
|
||||
COMBINE_DATA(&m_a_bus[offset]);
|
||||
|
||||
if (offset == 0)
|
||||
{
|
||||
COMBINE_DATA(&m_abus_protenable);
|
||||
}
|
||||
else if(offset == 2)
|
||||
{
|
||||
if (ACCESSING_BITS_16_31) m_cryptdevice->set_addr_low(data >> 16);
|
||||
if (ACCESSING_BITS_0_15) m_cryptdevice->set_addr_high(data&0xffff);
|
||||
|
||||
}
|
||||
else if(offset == 3)
|
||||
{
|
||||
COMBINE_DATA(&m_abus_protkey);
|
||||
|
||||
m_cryptdevice->set_subkey(m_abus_protkey>>16);
|
||||
}
|
||||
}
|
||||
|
||||
void stv_state::install_common_protection()
|
||||
{
|
||||
m_maincpu->space(AS_PROGRAM).install_read_handler(0x4fffff0, 0x4ffffff, read32sm_delegate(*this, FUNC(stv_state::common_prot_r)));
|
||||
m_maincpu->space(AS_PROGRAM).install_write_handler(0x4fffff0, 0x4ffffff, write32s_delegate(*this, FUNC(stv_state::common_prot_w)));
|
||||
}
|
||||
|
||||
void stv_state::stv_register_protection_savestates()
|
||||
{
|
||||
save_item(NAME(m_a_bus));
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
|
||||
06013AE8: MOV.L @($D4,PC),R5
|
||||
@ -1265,7 +1351,7 @@ MACHINE_START_MEMBER(stv_state, stv)
|
||||
save_item(NAME(m_scsp_last_line));
|
||||
save_item(NAME(m_vdp2.odd));
|
||||
|
||||
stv_register_protection_savestates(); // machine/stvprot.c
|
||||
stv_register_protection_savestates();
|
||||
|
||||
m_audiocpu->set_reset_callback(*this, FUNC(stv_state::m68k_reset_callback));
|
||||
}
|
||||
|
||||
@ -125,7 +125,7 @@ private:
|
||||
uint8_t m_ioga_portg;
|
||||
uint16_t m_serial_tx;
|
||||
|
||||
// protection specific variables and functions (see machine/stvprot.cpp)
|
||||
// protection specific variables and functions
|
||||
uint32_t m_abus_protenable;
|
||||
uint32_t m_abus_protkey;
|
||||
|
||||
|
||||
@ -1,94 +0,0 @@
|
||||
// license:LGPL-2.1+
|
||||
// copyright-holders:David Haywood, Angelo Salese, Olivier Galibert, Mariusz Wojcieszek, R. Belmont
|
||||
/* ST-V hookup for 315-5881 encryption/compression chip */
|
||||
|
||||
/*
|
||||
|
||||
Known ST-V Games using this kind of protection
|
||||
|
||||
Astra Superstars (text layer gfx transfer)
|
||||
Elandoree (gfx transfer of textures)
|
||||
Final Fight Revenge (boot vectors etc.)
|
||||
Radiant Silvergun (game start protection)
|
||||
Steep Slope Sliders (gfx transfer of character portraits)
|
||||
Tecmo World Cup '98 (tecmo logo, player movement)
|
||||
|
||||
*/
|
||||
|
||||
#include "emu.h"
|
||||
#include "includes/stv.h"
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
/*************************************
|
||||
*
|
||||
* Common Handlers
|
||||
*
|
||||
*************************************/
|
||||
|
||||
uint32_t stv_state::common_prot_r(offs_t offset)
|
||||
{
|
||||
uint32_t *ROM = (uint32_t *)machine().root_device().memregion("abus")->base();
|
||||
|
||||
if(m_abus_protenable & 0x00010000)//protection calculation is activated
|
||||
{
|
||||
if(offset == 3)
|
||||
{
|
||||
uint8_t* base;
|
||||
uint16_t res = m_cryptdevice->do_decrypt(base);
|
||||
uint16_t res2 = m_cryptdevice->do_decrypt(base);
|
||||
res = ((res & 0xff00) >> 8) | ((res & 0x00ff) << 8);
|
||||
res2 = ((res2 & 0xff00) >> 8) | ((res2 & 0x00ff) << 8);
|
||||
|
||||
return res2 | (res << 16);
|
||||
}
|
||||
return m_a_bus[offset];
|
||||
}
|
||||
else
|
||||
{
|
||||
if(m_a_bus[offset] != 0) return m_a_bus[offset];
|
||||
else return ROM[(0x02fffff0/4)+offset];
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
uint16_t stv_state::crypt_read_callback(uint32_t addr)
|
||||
{
|
||||
uint16_t dat= m_maincpu->space().read_word((0x02000000+2*addr));
|
||||
return ((dat&0xff00)>>8)|((dat&0x00ff)<<8);
|
||||
}
|
||||
|
||||
void stv_state::common_prot_w(offs_t offset, uint32_t data, uint32_t mem_mask)
|
||||
{
|
||||
COMBINE_DATA(&m_a_bus[offset]);
|
||||
|
||||
if (offset == 0)
|
||||
{
|
||||
COMBINE_DATA(&m_abus_protenable);
|
||||
}
|
||||
else if(offset == 2)
|
||||
{
|
||||
if (ACCESSING_BITS_16_31) m_cryptdevice->set_addr_low(data >> 16);
|
||||
if (ACCESSING_BITS_0_15) m_cryptdevice->set_addr_high(data&0xffff);
|
||||
|
||||
}
|
||||
else if(offset == 3)
|
||||
{
|
||||
COMBINE_DATA(&m_abus_protkey);
|
||||
|
||||
m_cryptdevice->set_subkey(m_abus_protkey>>16);
|
||||
}
|
||||
}
|
||||
|
||||
void stv_state::install_common_protection()
|
||||
{
|
||||
m_maincpu->space(AS_PROGRAM).install_read_handler(0x4fffff0, 0x4ffffff, read32sm_delegate(*this, FUNC(stv_state::common_prot_r)));
|
||||
m_maincpu->space(AS_PROGRAM).install_write_handler(0x4fffff0, 0x4ffffff, write32s_delegate(*this, FUNC(stv_state::common_prot_w)));
|
||||
}
|
||||
|
||||
void stv_state::stv_register_protection_savestates()
|
||||
{
|
||||
save_item(NAME(m_a_bus));
|
||||
}
|
||||
@ -1,2 +0,0 @@
|
||||
// license:LGPL-2.1+
|
||||
// copyright-holders:David Haywood, Angelo Salese, Olivier Galibert, Mariusz Wojcieszek, R. Belmont
|
||||
Loading…
Reference in New Issue
Block a user