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just test code (nw)

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This commit is contained in:
mamehaze 2014-11-04 00:51:52 +00:00
parent 4961e56d93
commit 09fa96295c
5 changed files with 20 additions and 9 deletions
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2
src/mame/drivers/stv.c
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@ -1023,7 +1023,7 @@ static MACHINE_CONFIG_START( stv, stv_state )
MCFG_SOUND_ROUTE(1, "rspeaker", 1.0)
MCFG_DEVICE_ADD("315_5881", SEGA315_5881_CRYPT, 0)
//MCFG_SET_READ_CALLBACK(stv_state, read_callback)
MCFG_SET_READ_CALLBACK(stv_state, crypt_read_callback)
MACHINE_CONFIG_END
/*

10
src/mame/includes/stv.h
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@ -35,8 +35,7 @@ public:
m_cart3(*this, "stv_slot3"),
m_cart4(*this, "stv_slot4"),
m_gfxdecode(*this, "gfxdecode"),
m_palette(*this, "palette"),
m_cryptdevice(*this, "315_5881")
m_palette(*this, "palette")
{
}
@ -170,7 +169,6 @@ public:
required_device<gfxdecode_device> m_gfxdecode;
required_device<palette_device> m_palette;
optional_device<sega_315_5881_crypt_device> m_cryptdevice;
bitmap_rgb32 m_tmpbitmap;
@ -700,7 +698,8 @@ public:
stv_state(const machine_config &mconfig, device_type type, const char *tag)
: saturn_state(mconfig, type, tag),
m_adsp(*this, "adsp"),
m_adsp_pram(*this, "adsp_pram")
m_adsp_pram(*this, "adsp_pram"),
m_cryptdevice(*this, "315_5881")
{
}
@ -835,6 +834,9 @@ public:
DECLARE_WRITE32_MEMBER( decathlt_prot2_w );
void write_prot_data(UINT32 data, UINT32 mem_mask, int offset, int which);
void install_decathlt_protection();
optional_device<sega_315_5881_crypt_device> m_cryptdevice;
UINT16 crypt_read_callback(UINT32 addr);
};

4
src/mame/machine/315-5881_crypt.c
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@ -65,7 +65,7 @@ void sega_315_5881_crypt_device::device_reset()
buffer_bit = 0;
}
void sega_315_5881_crypt_device::do_decrypt(UINT8 *&base)
UINT16 sega_315_5881_crypt_device::do_decrypt(UINT8 *&base)
{
if(!enc_ready)
enc_start();
@ -80,6 +80,8 @@ void sega_315_5881_crypt_device::do_decrypt(UINT8 *&base)
base = buffer + buffer_pos;
buffer_pos += 2;
}
return (base[0] << 8) | base[1];
}
void sega_315_5881_crypt_device::set_addr_low(UINT16 data)

2
src/mame/machine/315-5881_crypt.h
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@ -19,7 +19,7 @@ public:
sega_315_5881_crypt_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
void do_decrypt(UINT8 *&base);
UINT16 do_decrypt(UINT8 *&base);
void set_addr_low(UINT16 data);
void set_addr_high(UINT16 data);
void set_subkey(UINT16 data);

11
src/mame/machine/stvprot.c
View File

@ -590,6 +590,8 @@ READ32_MEMBER( stv_state::common_prot_r )
logerror("A-Bus control protection read at %06x with data = %08x Returning = %08x Would otherwise return = %08x\n",space.device().safe_pc(),m_abus_protkey, retdata, realret);
//UINT16 res = m_cryptdevice->do_decrypt(base);
m_ctrl_index += 4;
return retdata;
@ -604,7 +606,11 @@ READ32_MEMBER( stv_state::common_prot_r )
}
UINT16 stv_state::crypt_read_callback(UINT32 addr)
{
const UINT8 *base = m_cart_reg[0]->base() + 2*addr;
return base[1] | (base[0] << 8);
}
WRITE32_MEMBER ( stv_state::common_prot_w )
{
@ -627,7 +633,7 @@ WRITE32_MEMBER ( stv_state::common_prot_w )
{
COMBINE_DATA(&m_abus_protkey);
m_cryptdevice->set_subkey(m_abus_protkey);
m_cryptdevice->set_subkey(m_abus_protkey>>16);
int a_bus_vector;
@ -665,6 +671,7 @@ void stv_state::install_astrass_protection()
{
install_common_protection();
m_prot_readback = astrass_prot_read_callback;
// m_cryptdevice->set_key(0x00000000);
}
void stv_state::install_ffreveng_protection()