// license:BSD-3-Clause
// copyright-holders:Melissa Goad
/***************************************************************************
iphone2g.cpp
Driver file to handle emulation of the original iPhone
***************************************************************************/
#include "emu.h"
#include "cpu/arm7/arm7.h"
#include "screen.h"
class iphone2g_state : public driver_device
{
public:
iphone2g_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_ram(*this, "ram"),
m_bios(*this, "bios"),
m_screen(*this, "screen")
{ }
void iphone2g(machine_config &config);
protected:
virtual void machine_start() override;
virtual void machine_reset() override;
DECLARE_READ32_MEMBER(clock1_r);
private:
required_device<cpu_device> m_maincpu;
required_shared_ptr<uint32_t> m_ram;
required_region_ptr<uint32_t> m_bios;
required_device<screen_device> m_screen;
uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
void mem_map(address_map &map);
};
uint32_t iphone2g_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
return 0;
}
READ32_MEMBER(iphone2g_state::clock1_r)
{
uint32_t ret = 0;
switch(offset)
{
case 0x40/4: ret = 1; break; //boot rom needs this to not infinite loop at startup.
}
logerror("%s: Clock1 read: offset %08x data %08x\n", machine().describe_context(), offset << 2, ret);
return ret;
}
void iphone2g_state::mem_map(address_map &map)
{
map(0x00000000, 0x07FFFFFF).mirror(0x18000000).ram().share("ram"); /* DRAM */
map(0x20000000, 0x2000FFFF).rom().region("bios", 0); /* BIOS */
map(0x22000000, 0x224FFFFF).ram(); /* SRAM */
map(0x3C500000, 0x3C500FFF).r(FUNC(iphone2g_state::clock1_r)).nopw();
}
void iphone2g_state::machine_start()
{
std::copy_n(m_bios.target(), m_bios.length(), m_ram.target());
}
void iphone2g_state::machine_reset()
{
}
MACHINE_CONFIG_START(iphone2g_state::iphone2g)
/* Basic machine hardware */
MCFG_DEVICE_ADD(m_maincpu, ARM1176JZF_S, XTAL(12'000'000) * 103 / 3) //412 MHz, downclocked from 600 MHz
MCFG_DEVICE_PROGRAM_MAP(mem_map)
MCFG_SCREEN_ADD(m_screen, RASTER)
MCFG_SCREEN_RAW_PARAMS(XTAL(12'000'000), 320, 0, 320, 480, 0, 480) //Complete guess
MCFG_SCREEN_UPDATE_DRIVER(iphone2g_state, screen_update)
MACHINE_CONFIG_END
ROM_START(iphone2g)
ROM_REGION32_LE(0x10000, "bios", 0)
ROM_LOAD("s5l8900-bootrom.bin", 0x00000, 0x10000, CRC(beb15cd1) SHA1(079a3acab577eb52cc349ea811af3cbd5d01b8f5))
ROM_END
/* YEAR NAME PARENT COMPAT MACHINE INPUT STATE INIT COMPANY FULLNAME FLAGS */
// console section
CONS( 2007, iphone2g, 0, 0, iphone2g, 0, iphone2g_state, empty_init, "Apple", "iPhone (A1203)", MACHINE_IS_SKELETON )