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(MESS) saturn: modernized nvram. nw.

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This commit is contained in:
Fabio Priuli 2014-04-03 10:05:07 +00:00
parent 7f02068f39
commit d161eddcbf
1 changed files with 28 additions and 51 deletions
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79
src/mess/drivers/saturn.c
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@ -43,6 +43,7 @@ test1f diagnostic hacks:
#include "sound/scsp.h"
#include "sound/cdda.h"
#include "machine/smpc.h"
#include "machine/nvram.h"
#include "includes/stv.h"
#include "imagedev/chd_cd.h"
#include "coreutil.h"
@ -52,8 +53,6 @@ test1f diagnostic hacks:
#include "bus/saturn/dram.h"
#include "bus/saturn/bram.h"
#include "mcfglgcy.h"
class sat_console_state : public saturn_state
{
@ -61,6 +60,8 @@ public:
sat_console_state(const machine_config &mconfig, device_type type, const char *tag)
: saturn_state(mconfig, type, tag)
, m_exp(*this, "exp")
, m_nvram(*this, "nvram")
, m_smpc_nv(*this, "smpc_nv")
{ }
DECLARE_INPUT_CHANGED_MEMBER(key_stroke);
@ -82,56 +83,14 @@ public:
DECLARE_DRIVER_INIT(saturneu);
DECLARE_DRIVER_INIT(saturnjp);
void nvram_init(nvram_device &nvram, void *data, size_t size);
required_device<sat_cart_slot_device> m_exp;
required_device<nvram_device> m_nvram;
required_device<nvram_device> m_smpc_nv; // TODO: move this in the base class saturn_state and add it to stv in MAME
};
/* TODO: if you change the driver configuration then NVRAM contents gets screwed, needs mods in MAME framework */
static NVRAM_HANDLER(saturn)
{
sat_console_state *state = machine.driver_data<sat_console_state>();
static const UINT32 BUP_SIZE = 32*1024;
UINT8 backup_file[(BUP_SIZE)+4];
static const UINT8 init[16] =
{
'B', 'a', 'c', 'k', 'U', 'p', 'R', 'a', 'm', ' ', 'F', 'o', 'r', 'm', 'a', 't'
};
UINT32 i;
if (read_or_write)
{
for(i=0;i<BUP_SIZE;i++)
backup_file[i] = state->m_backupram[i];
for(i=0;i<4;i++)
backup_file[i+(BUP_SIZE)] = state->m_smpc.SMEM[i];
file->write(backup_file, (BUP_SIZE)+4);
}
else
{
if (file)
{
file->read(backup_file, (BUP_SIZE)+4);
for(i=0;i<BUP_SIZE;i++)
state->m_backupram[i] = backup_file[i];
for(i=0;i<4;i++)
state->m_smpc.SMEM[i] = backup_file[i+BUP_SIZE];
}
else
{
UINT8 j;
memset(state->m_backupram, 0, BUP_SIZE);
for (i = 0; i < 4; i++)
{
for(j=0;j<16;j++)
state->m_backupram[i*16+j] = init[j];
}
memset(state->m_smpc.SMEM, 0, 4); // TODO: default for each region
}
}
}
READ8_MEMBER(sat_console_state::saturn_cart_type_r)
{
if (m_exp)
@ -585,11 +544,26 @@ static INPUT_PORTS_START( saturn )
PORT_CONFSETTING(0x01,"One Shot (Hack)")
INPUT_PORTS_END
/* TODO: if you change the driver configuration then NVRAM contents gets screwed, needs mods in MAME framework */
void sat_console_state::nvram_init(nvram_device &nvram, void *data, size_t size)
{
static const UINT8 init[64] = {
'B', 'a', 'c', 'k', 'U', 'p', 'R', 'a', 'm', ' ', 'F', 'o', 'r', 'm', 'a', 't',
'B', 'a', 'c', 'k', 'U', 'p', 'R', 'a', 'm', ' ', 'F', 'o', 'r', 'm', 'a', 't',
'B', 'a', 'c', 'k', 'U', 'p', 'R', 'a', 'm', ' ', 'F', 'o', 'r', 'm', 'a', 't',
'B', 'a', 'c', 'k', 'U', 'p', 'R', 'a', 'm', ' ', 'F', 'o', 'r', 'm', 'a', 't', };
memset(data, 0x00, size);
memcpy(data, init, sizeof(init));
}
static const sh2_cpu_core sh2_conf_master = { 0, NULL };
static const sh2_cpu_core sh2_conf_slave = { 1, NULL };
MACHINE_START_MEMBER(sat_console_state,saturn)
MACHINE_START_MEMBER(sat_console_state, saturn)
{
system_time systime;
machine().base_datetime(systime);
@ -602,6 +576,9 @@ MACHINE_START_MEMBER(sat_console_state,saturn)
m_maincpu->space(AS_PROGRAM).nop_readwrite(0x04000000, 0x047fffff);
m_slave->space(AS_PROGRAM).nop_readwrite(0x04000000, 0x047fffff);
m_nvram->set_base(m_backupram, 0x8000);
m_smpc_nv->set_base(&m_smpc.SMEM, 4);
if (m_exp)
{
switch (m_exp->get_cart_type())
@ -708,7 +685,6 @@ MACHINE_RESET_MEMBER(sat_console_state,saturn)
m_NMI_reset = 0;
m_smpc.slave_on = 0;
//memset(stv_m_workram_l, 0, 0x100000);
//memset(stv_m_workram_h, 0, 0x100000);
@ -765,7 +741,8 @@ static MACHINE_CONFIG_START( saturn, sat_console_state )
MCFG_MACHINE_START_OVERRIDE(sat_console_state,saturn)
MCFG_MACHINE_RESET_OVERRIDE(sat_console_state,saturn)
MCFG_NVRAM_HANDLER(saturn)
MCFG_NVRAM_ADD_CUSTOM_DRIVER("nvram", sat_console_state, nvram_init)
MCFG_NVRAM_ADD_0FILL("smpc_nv") // TODO: default for each region (+ move it inside SMPC when converted to device)
MCFG_TIMER_DRIVER_ADD("sector_timer", sat_console_state, stv_sector_cb)
MCFG_TIMER_DRIVER_ADD("sh1_cmd", sat_console_state, stv_sh1_sim)