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pgm2: actual ICRW simulation (nw)

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This commit is contained in:
MetalliC 2017-12-10 17:23:38 +02:00
parent ac049998b5
commit 5c7660ee14
2 changed files with 53 additions and 14 deletions
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65
src/mame/drivers/pgm2.cpp
View File

@ -144,18 +144,34 @@ TIMER_DEVICE_CALLBACK_MEMBER(pgm2_state::igs_interrupt2)
m_arm_aic->set_irq(0x46);
}
static const uint8_t orleg2_china_card[32] = {
0xA2, 0x13, 0x10, 0x91, 0x05, 0x0C, 0x81, 0x15, 0x10, 0x00, 0x00, 0x03, 0x00, 0x49, 0x47, 0x53,
0x00, 0x00, 0x00, 0x00, 0x00, 0xD2, 0x76, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
static const uint8_t kov2nl_china_card[32] = {
0xA2, 0x13, 0x10, 0x91, 0x05, 0x0C, 0x81, 0x15, 0x06, 0x00, 0x00, 0x04, 0x00, 0x49, 0x47, 0x53,
0x00, 0x00, 0x00, 0x00, 0x00, 0xD2, 0x76, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
// "MPU" MCU HLE starts here
// TODO: make data cards using image_interface
// command delays is far not correct, might not work in other games
// command results probably either incorrect (except for explicit checked bytes)
void pgm2_state::mcu_command(bool is_command)
{
uint8_t cmd = m_mcu_regs[0] & 0xff;
if (is_command && cmd != 0xf6)
logerror("MCU command %08x %08x\n", m_mcu_regs[0], m_mcu_regs[1]);
// if (is_command && cmd != 0xf6)
// logerror("MCU command %08x %08x\n", m_mcu_regs[0], m_mcu_regs[1]);
if (is_command)
{
m_mcu_last_cmd = cmd;
uint8_t status = 0xf7; // "command accepted" status
int delay = 1;
uint8_t arg1 = m_mcu_regs[0] >> 8;
uint8_t arg2 = m_mcu_regs[0] >> 16;
uint8_t arg3 = m_mcu_regs[0] >> 24;
switch (cmd)
{
case 0xf6: // get result
@ -183,20 +199,36 @@ void pgm2_state::mcu_command(bool is_command)
}
break;
// unknown / unimplemented, all C0-C9 commands is IC Card RW related
// (m_mcu_regs[0] >> 8) & 0xff - target RW unit (player) #
// (m_mcu_regs[0] >> 8) & 0xff - target RW unit (player)
case 0xc0: // insert card or/and check card presence. result: F7 - ok, F4 - no card
status = 0xf4;
case 0xc1:
case 0xc2:
case 0xc3:
case 0xc4:
case 0xc5:
case 0xc6:
case 0xc7:
case 0xc8:
case 0xc9:
if (!m_have_card[arg1])
status = 0xf4;
m_mcu_result0 = cmd;
break;
case 0xc1: // check ready/busy ?
m_mcu_result0 = cmd;
break;
case 0xc2: // read data to shared ram, args - offset, len
memcpy(&m_shareram[(~m_share_bank & 1) * 128], &m_card_data[arg1][arg2], arg3);
m_mcu_result0 = cmd;
break;
case 0xc3: // save data from shared ram, args - offset, len
memcpy(&m_card_data[arg1][arg2], &m_shareram[(~m_share_bank & 1) * 128], arg3);
m_mcu_result0 = cmd;
break;
case 0xc7: // get card ID?, no args, result1 expected to be fixed value for new card
m_mcu_result1 = 0xf81f0000;
m_mcu_result0 = cmd;
break;
case 0xc8: // write byte, args - offset, data byte
m_card_data[arg1][arg2] = arg3;
m_mcu_result0 = cmd;
break;
case 0xc4: // not used
case 0xc5: // set new password?, args - offset, data byte (offs 0 - always 7, 1-3 password)
case 0xc6: // not used
case 0xc9: // card authentication, args - 3 byte password, ('I','G','S' for new cards)
m_mcu_result0 = cmd;
m_mcu_result1 = 0;
break;
default:
logerror("MCU unknown command %08x %08x\n", m_mcu_regs[0], m_mcu_regs[1]);
@ -402,6 +434,11 @@ void pgm2_state::machine_reset()
m_realspritekey = 0;
m_mcu_last_cmd = 0;
m_share_bank = 0;
m_have_card[0] = true;
m_have_card[1] = m_have_card[2] = m_have_card[3] = false;
memcpy(m_card_data[0], orleg2_china_card, sizeof(orleg2_china_card));
// memcpy(m_card_data[0], kov2nl_china_card, sizeof(kov2nl_china_card));
}
static const gfx_layout tiles8x8_layout =

2
src/mame/includes/pgm2.h
View File

@ -117,6 +117,8 @@ private:
uint32_t m_mcu_result1;
uint8_t m_mcu_last_cmd;
void mcu_command(bool is_command);
uint8_t m_card_data[4][0x100];
bool m_have_card[4];
// devices
required_device<cpu_device> m_maincpu;