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ps2sony: Fixed some R3000 bugs, started fleshing out IOP devices, nw

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This commit is contained in:
mooglyguy 2018-07-01 02:11:59 +02:00
parent 65a876f818
commit 9d60df7b06
8 changed files with 908 additions and 29 deletions
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4
scripts/target/mame/mess.lua
View File

@ -3063,6 +3063,10 @@ files {
MAME_DIR .. "src/mame/drivers/ps2sony.cpp", MAME_DIR .. "src/mame/drivers/ps2sony.cpp",
MAME_DIR .. "src/mame/machine/ps2timer.cpp", MAME_DIR .. "src/mame/machine/ps2timer.cpp",
MAME_DIR .. "src/mame/machine/ps2timer.h", MAME_DIR .. "src/mame/machine/ps2timer.h",
MAME_DIR .. "src/mame/machine/ioptimer.cpp",
MAME_DIR .. "src/mame/machine/ioptimer.h",
MAME_DIR .. "src/mame/machine/iopdma.cpp",
MAME_DIR .. "src/mame/machine/iopdma.h",
} }
createMESSProjects(_target, _subtarget, "sord") createMESSProjects(_target, _subtarget, "sord")

29
src/devices/cpu/mips/r3000.cpp
View File

@ -211,7 +211,10 @@ r3081_device::r3081_device(const machine_config &mconfig, const char *tag, devic
//------------------------------------------------- //-------------------------------------------------
iop_device::iop_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) iop_device::iop_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: r3000_device(mconfig, SONYPS2_IOP, tag, owner, clock, CHIP_TYPE_IOP) { } : r3000_device(mconfig, SONYPS2_IOP, tag, owner, clock, CHIP_TYPE_IOP)
{
m_endianness = ENDIANNESS_LITTLE;
}
//------------------------------------------------- //-------------------------------------------------
@ -384,7 +387,6 @@ void r3000_device::device_start()
save_item(NAME(m_dcache)); save_item(NAME(m_dcache));
} }
//------------------------------------------------- //-------------------------------------------------
// device_post_load - // device_post_load -
//------------------------------------------------- //-------------------------------------------------
@ -416,7 +418,7 @@ void r3000_device::device_reset()
void iop_device::device_reset() void iop_device::device_reset()
{ {
r3000_device::device_reset(); r3000_device::device_reset();
m_cpr[0][COP0_PRId] = 0x2; m_cpr[0][COP0_PRId] = 0x1f;
} }
@ -506,31 +508,43 @@ inline uint32_t r3000_device::readop(offs_t pc)
uint8_t r3000_device::readmem(offs_t offset) uint8_t r3000_device::readmem(offs_t offset)
{ {
if (SR & SR_IsC)
return 0;
return m_program->read_byte(offset); return m_program->read_byte(offset);
} }
uint16_t r3000_device::readmem_word(offs_t offset) uint16_t r3000_device::readmem_word(offs_t offset)
{ {
if (SR & SR_IsC)
return 0;
return m_program->read_word(offset); return m_program->read_word(offset);
} }
uint32_t r3000_device::readmem_dword(offs_t offset) uint32_t r3000_device::readmem_dword(offs_t offset)
{ {
if (SR & SR_IsC)
return 0;
return m_program->read_dword(offset); return m_program->read_dword(offset);
} }
void r3000_device::writemem(offs_t offset, uint8_t data) void r3000_device::writemem(offs_t offset, uint8_t data)
{ {
if (SR & SR_IsC)
return;
m_program->write_byte(offset, data); m_program->write_byte(offset, data);
} }
void r3000_device::writemem_word(offs_t offset, uint16_t data) void r3000_device::writemem_word(offs_t offset, uint16_t data)
{ {
if (SR & SR_IsC)
return;
m_program->write_word(offset, data); m_program->write_word(offset, data);
} }
void r3000_device::writemem_dword(offs_t offset, uint32_t data) void r3000_device::writemem_dword(offs_t offset, uint32_t data)
{ {
if (SR & SR_IsC)
return;
m_program->write_dword(offset, data); m_program->write_dword(offset, data);
} }
@ -624,7 +638,7 @@ void r3000_device::writecache_le_dword(offs_t offset, uint32_t data)
inline void r3000_device::generate_exception(int exception) inline void r3000_device::generate_exception(int exception)
{ {
// set the exception PC // set the exception PC
m_cpr[0][COP0_EPC] = m_pc; m_cpr[0][COP0_EPC] = (exception == EXCEPTION_SYSCALL ? m_ppc : m_pc);
// put the cause in the low 8 bits and clear the branch delay flag // put the cause in the low 8 bits and clear the branch delay flag
CAUSE = (CAUSE & ~0x800000ff) | (exception << 2); CAUSE = (CAUSE & ~0x800000ff) | (exception << 2);
@ -641,10 +655,11 @@ inline void r3000_device::generate_exception(int exception)
SR = (SR & 0xffffffc0) | ((SR << 2) & 0x3c); SR = (SR & 0xffffffc0) | ((SR << 2) & 0x3c);
// based on the BEV bit, we either go to ROM or RAM // based on the BEV bit, we either go to ROM or RAM
m_pc = (SR & SR_BEV) ? 0xbfc00000 : 0x80000000; bool bev = (SR & SR_BEV) ? true : false;
m_pc = bev ? 0xbfc00000 : 0x80000000;
// most exceptions go to offset 0x180, except for TLB stuff // most exceptions go to offset 0x180, except for TLB stuff and syscall (if BEV is unset)
if (exception >= EXCEPTION_TLBMOD && exception <= EXCEPTION_TLBSTORE) if ((exception >= EXCEPTION_TLBMOD && exception <= EXCEPTION_TLBSTORE) || !bev)
m_pc += 0x80; m_pc += 0x80;
else else
m_pc += 0x180; m_pc += 0x180;

345
src/mame/drivers/ps2sony.cpp
View File

@ -159,6 +159,8 @@ iLinkSGUID=0x--------
#include "cpu/mips/mips3.h" #include "cpu/mips/mips3.h"
#include "cpu/mips/r3000.h" #include "cpu/mips/r3000.h"
#include "machine/ps2timer.h" #include "machine/ps2timer.h"
#include "machine/ioptimer.h"
#include "machine/iopdma.h"
#include "emupal.h" #include "emupal.h"
#include "screen.h" #include "screen.h"
@ -168,7 +170,10 @@ public:
ps2sony_state(const machine_config &mconfig, device_type type, const char *tag) ps2sony_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) : driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu") , m_maincpu(*this, "maincpu")
, m_iop(*this, "iop")
, m_timer(*this, "timer%u", 0U) , m_timer(*this, "timer%u", 0U)
, m_iop_timer(*this, "iop_timer")
, m_iop_dma(*this, "iop_dma")
, m_screen(*this, "screen") , m_screen(*this, "screen")
, m_iop_ram(*this, "iop_ram") , m_iop_ram(*this, "iop_ram")
, m_sp_ram(*this, "sp_ram") , m_sp_ram(*this, "sp_ram")
@ -210,25 +215,46 @@ protected:
DECLARE_WRITE32_MEMBER(dmac_w); DECLARE_WRITE32_MEMBER(dmac_w);
DECLARE_READ32_MEMBER(intc_r); DECLARE_READ32_MEMBER(intc_r);
DECLARE_WRITE32_MEMBER(intc_w); DECLARE_WRITE32_MEMBER(intc_w);
DECLARE_READ32_MEMBER(sif_smflg_r); DECLARE_READ32_MEMBER(sif_r);
DECLARE_WRITE32_MEMBER(sif_smflg_w); DECLARE_WRITE32_MEMBER(sif_w);
DECLARE_WRITE8_MEMBER(debug_w); DECLARE_WRITE8_MEMBER(debug_w);
DECLARE_READ32_MEMBER(unk_f430_r); DECLARE_READ32_MEMBER(unk_f430_r);
DECLARE_WRITE32_MEMBER(unk_f430_w); DECLARE_WRITE32_MEMBER(unk_f430_w);
DECLARE_READ32_MEMBER(unk_f440_r); DECLARE_READ32_MEMBER(unk_f440_r);
DECLARE_WRITE32_MEMBER(unk_f440_w); DECLARE_WRITE32_MEMBER(unk_f440_w);
DECLARE_READ32_MEMBER(unk_f520_r); DECLARE_READ32_MEMBER(unk_f520_r);
DECLARE_READ64_MEMBER(board_id_r);
DECLARE_WRITE64_MEMBER(ee_iop_ram_w);
DECLARE_READ64_MEMBER(ee_iop_ram_r);
DECLARE_READ32_MEMBER(iop_intc_r);
DECLARE_WRITE32_MEMBER(iop_intc_w);
DECLARE_READ32_MEMBER(iop_sif_r);
DECLARE_WRITE32_MEMBER(iop_sif_w);
DECLARE_READ32_MEMBER(iop_dma_ctrl0_r);
DECLARE_WRITE32_MEMBER(iop_dma_ctrl0_w);
DECLARE_READ32_MEMBER(iop_dma_ctrl1_r);
DECLARE_WRITE32_MEMBER(iop_dma_ctrl1_w);
DECLARE_WRITE32_MEMBER(iop_debug_w);
DECLARE_WRITE_LINE_MEMBER(iop_timer_irq);
void check_irq0(); void check_irq0();
void raise_interrupt(int line); void raise_interrupt(int line);
void check_iop_irq();
void raise_iop_interrupt(int line);
void mem_map(address_map &map); void mem_map(address_map &map);
void iop_map(address_map &map); void iop_map(address_map &map);
required_device<cpu_device> m_maincpu; required_device<cpu_device> m_maincpu;
required_device<iop_device> m_iop;
required_device_array<ps2_timer_device, 4> m_timer; required_device_array<ps2_timer_device, 4> m_timer;
required_device<iop_timer_device> m_iop_timer;
required_device<iop_dma_device> m_iop_dma;
required_device<screen_device> m_screen; required_device<screen_device> m_screen;
required_shared_ptr<uint64_t> m_iop_ram; required_shared_ptr<uint32_t> m_iop_ram;
required_shared_ptr<uint64_t> m_sp_ram; required_shared_ptr<uint64_t> m_sp_ram;
required_shared_ptr<uint64_t> m_vu0_imem; required_shared_ptr<uint64_t> m_vu0_imem;
required_shared_ptr<uint64_t> m_vu0_dmem; required_shared_ptr<uint64_t> m_vu0_dmem;
@ -252,6 +278,14 @@ protected:
uint64_t m_ipu_out_fifo[0x1000]; uint64_t m_ipu_out_fifo[0x1000];
uint64_t m_ipu_out_fifo_index; uint64_t m_ipu_out_fifo_index;
uint32_t m_sif_ms_mailbox;
uint32_t m_sif_sm_mailbox;
uint32_t m_sif_ms_flag;
uint32_t m_sif_sm_flag;
uint32_t m_sif_ctrl;
uint32_t m_dmac_d5_chcr;
enum enum
{ {
INT_GS = 0, INT_GS = 0,
@ -274,6 +308,10 @@ protected:
uint32_t m_istat; uint32_t m_istat;
uint32_t m_imask; uint32_t m_imask;
uint32_t m_iop_istat;
uint32_t m_iop_imask;
uint32_t m_iop_ienable;
emu_timer *m_vblank_timer; emu_timer *m_vblank_timer;
}; };
@ -428,6 +466,7 @@ READ32_MEMBER(ps2sony_state::dmac_channel_r)
logerror("%s: dmac_channel_r: D4_TADR (%08x)\n", machine().describe_context(), ret); logerror("%s: dmac_channel_r: D4_TADR (%08x)\n", machine().describe_context(), ret);
break; break;
case 0xc000/8: /* D5_CHCR */ case 0xc000/8: /* D5_CHCR */
ret = m_dmac_d5_chcr;
logerror("%s: dmac_channel_r: D5_CHCR (%08x)\n", machine().describe_context(), ret); logerror("%s: dmac_channel_r: D5_CHCR (%08x)\n", machine().describe_context(), ret);
break; break;
case 0xc010/8: /* D5_MADR */ case 0xc010/8: /* D5_MADR */
@ -493,6 +532,8 @@ READ32_MEMBER(ps2sony_state::dmac_channel_r)
WRITE32_MEMBER(ps2sony_state::dmac_channel_w) WRITE32_MEMBER(ps2sony_state::dmac_channel_w)
{ {
static const char* mode_strings[4] = { "Normal", "Chain", "Interleave", "Undefined" };
switch (offset + 0x8000/8) switch (offset + 0x8000/8)
{ {
case 0x8000/8: /* D0_CHCR */ case 0x8000/8: /* D0_CHCR */
@ -571,7 +612,9 @@ WRITE32_MEMBER(ps2sony_state::dmac_channel_w)
logerror("%s: dmac_channel_w: D4_TADR = %08x\n", machine().describe_context(), data); logerror("%s: dmac_channel_w: D4_TADR = %08x\n", machine().describe_context(), data);
break; break;
case 0xc000/8: /* D5_CHCR */ case 0xc000/8: /* D5_CHCR */
logerror("%s: dmac_channel_w: D5_CHCR = %08x\n", machine().describe_context(), data); logerror("%s: dmac_channel_w: D5_CHCR = %08x (DIR=%s Memory, MOD=%s, ASP=%d, TTE=%s DMAtag, \n", machine().describe_context(), data, BIT(data, 0) ? "From" : "To", mode_strings[(data >> 1) & 3], (data >> 3) & 3, BIT(data, 6) ? "Transfers" : "Does not transfer");
logerror("%s: TIE=%d, START=%d, TAG=%04x\n", machine().describe_context(), BIT(data, 7), BIT(data, 8), data >> 16);
COMBINE_DATA(&m_dmac_d5_chcr);
break; break;
case 0xc010/8: /* D5_MADR */ case 0xc010/8: /* D5_MADR */
logerror("%s: dmac_channel_w: D5_MADR = %08x\n", machine().describe_context(), data); logerror("%s: dmac_channel_w: D5_MADR = %08x\n", machine().describe_context(), data);
@ -875,19 +918,95 @@ void ps2sony_state::check_irq0()
m_maincpu->set_input_line(MIPS3_IRQ0, (m_istat & m_imask) ? ASSERT_LINE : CLEAR_LINE); m_maincpu->set_input_line(MIPS3_IRQ0, (m_istat & m_imask) ? ASSERT_LINE : CLEAR_LINE);
} }
void ps2sony_state::check_iop_irq()
{
bool active = (m_iop_ienable && (m_iop_istat & m_iop_imask));
logerror("%s: check_iop_irq: %d\n", machine().describe_context(), active ? 1 : 0);
m_iop->set_input_line(R3000_IRQ0, active ? ASSERT_LINE : CLEAR_LINE);
}
void ps2sony_state::raise_interrupt(int line) void ps2sony_state::raise_interrupt(int line)
{ {
printf("raise_interrupt: %d\n", (1 << line));
m_istat |= (1 << line); m_istat |= (1 << line);
check_irq0(); check_irq0();
} }
void ps2sony_state::raise_iop_interrupt(int line)
{
logerror("%s: raise_iop_interrupt: %d\n", machine().describe_context(), line);
m_iop_istat |= (1 << line);
check_iop_irq();
}
WRITE_LINE_MEMBER(ps2sony_state::iop_timer_irq)
{
logerror("%s: iop_timer_irq: %d\n", machine().describe_context(), state);
if (state)
raise_iop_interrupt(16);
}
WRITE32_MEMBER(ps2sony_state::iop_debug_w)
{
//printf("%08x ", data);
}
READ32_MEMBER(ps2sony_state::iop_intc_r)
{
uint32_t ret = 0;
switch (offset)
{
case 0: // I_STAT
ret = m_iop_istat;
logerror("%s: iop_intc_r: I_STAT %08x\n", machine().describe_context(), ret);
break;
case 1: // I_MASK
ret = m_iop_imask;
logerror("%s: iop_intc_r: I_MASK %08x\n", machine().describe_context(), ret);
break;
case 2: // I_ENABLE
ret = m_iop_ienable;
m_iop_ienable = 0;
check_iop_irq();
logerror("%s: iop_intc_r: I_ENABLE %08x\n", machine().describe_context(), ret);
break;
default:
logerror("%s: iop_intc_r: Unknown offset %08x\n", machine().describe_context(), 0x1f801070 + (offset << 2));
break;
}
return ret;
}
WRITE32_MEMBER(ps2sony_state::iop_intc_w)
{
switch (offset)
{
case 0: // I_STAT
logerror("%s: iop_intc_w: I_STAT = %08x\n", machine().describe_context(), data);
m_iop_istat &= data;
check_iop_irq();
break;
case 1: // I_MASK
logerror("%s: iop_intc_w: I_MASK = %08x\n", machine().describe_context(), data);
m_iop_imask = data;
check_iop_irq();
break;
case 2: // I_ENABLE
logerror("%s: iop_intc_w: I_ENABLE = %08x\n", machine().describe_context(), data);
m_iop_ienable = BIT(data, 0);
check_iop_irq();
break;
default:
logerror("%s: iop_intc_w: Unknown offset %08x = %08x\n", machine().describe_context(), 0x1f801070 + (offset << 2), data);
break;
}
}
READ32_MEMBER(ps2sony_state::intc_r) READ32_MEMBER(ps2sony_state::intc_r)
{ {
switch (offset) switch (offset)
{ {
case 0: // I_STAT case 0: // I_STAT
logerror("%s: intc_r: I_STAT %08x\n", machine().describe_context(), m_istat); //logerror("%s: intc_r: I_STAT %08x\n", machine().describe_context(), m_istat);
return m_istat; return m_istat;
case 2: // I_MASK case 2: // I_MASK
logerror("%s: intc_r: I_MASK %08x\n", machine().describe_context(), m_imask); logerror("%s: intc_r: I_MASK %08x\n", machine().describe_context(), m_imask);
@ -909,7 +1028,7 @@ WRITE32_MEMBER(ps2sony_state::intc_w)
break; break;
case 2: // I_MASK case 2: // I_MASK
logerror("%s: intc_w: I_MASK = %08x\n", machine().describe_context(), data); logerror("%s: intc_w: I_MASK = %08x\n", machine().describe_context(), data);
COMBINE_DATA(&m_imask); m_imask ^= data & 0x7fff;
check_irq0(); check_irq0();
break; break;
default: default:
@ -918,26 +1037,162 @@ WRITE32_MEMBER(ps2sony_state::intc_w)
} }
} }
READ32_MEMBER(ps2sony_state::sif_smflg_r) READ32_MEMBER(ps2sony_state::iop_sif_r)
{ {
uint32_t ret = 0x00010000; uint32_t ret = 0;
logerror("%s: sif_smflg_r (%08x)\n", machine().describe_context(), ret); switch (offset)
{
case 0:
ret = m_sif_ms_mailbox;
logerror("%s: iop_sif_r: SIF master->slave mailbox (%08x)\n", machine().describe_context(), ret);
break;
case 4:
ret = m_sif_sm_mailbox;
logerror("%s: iop_sif_r: SIF slave->master mailbox (%08x)\n", machine().describe_context(), ret);
break;
case 8:
ret = m_sif_ms_flag;
logerror("%s: iop_sif_r: SIF master->slave flag (%08x)\n", machine().describe_context(), ret);
break;
case 12:
ret = m_sif_sm_flag;
logerror("%s: iop_sif_r: SIF slave->master flag (%08x)\n", machine().describe_context(), ret);
break;
case 16:
ret = m_sif_ctrl | 0xf0000002;
logerror("%s: iop_sif_r: SIF control register (%08x)\n", machine().describe_context(), ret);
break;
default:
logerror("%s: iop_sif_r: Unknown read (%08x)\n", machine().describe_context(), 0x1d000000 + (offset << 2));
break;
}
return ret; return ret;
} }
WRITE32_MEMBER(ps2sony_state::sif_smflg_w) WRITE32_MEMBER(ps2sony_state::iop_sif_w)
{ {
logerror("%s: sif_smflg_w = %08x\n", machine().describe_context(), data); switch (offset)
{
case 4:
logerror("%s: iop_sif_w: SIF set slave->master mailbox (%08x)\n", machine().describe_context(), data);
m_sif_sm_mailbox = data;
break;
case 12:
if (m_sif_sm_flag == 0 && data != 0)
{
//raise_interrupt(INT_SBUS);
}
logerror("%s: iop_sif_w: SIF set slave->master flag (%08x)\n", machine().describe_context(), data);
m_sif_sm_flag |= data;
break;
default:
logerror("%s: iop_sif_w: Unknown write %08x = %08x\n", machine().describe_context(), 0x1d000000 + (offset << 2), data);
break;
}
}
READ32_MEMBER(ps2sony_state::sif_r)
{
uint32_t ret = 0;
switch (offset)
{
case 0:
ret = m_sif_ms_mailbox;
logerror("%s: sif_r: SIF master->slave mailbox (%08x)\n", machine().describe_context(), ret);
break;
case 2:
ret = m_sif_sm_mailbox;
logerror("%s: sif_r: SIF slave->master mailbox (%08x)\n", machine().describe_context(), ret);
break;
case 4:
ret = m_sif_ms_flag;
logerror("%s: sif_r: SIF master->slave flag (%08x)\n", machine().describe_context(), ret);
break;
case 6:
ret = m_sif_sm_flag;
logerror("%s: sif_r: SIF slave->master flag (%08x)\n", machine().describe_context(), ret);
break;
case 8:
ret = m_sif_ctrl;
logerror("%s: sif_r: SIF control (%08x)\n", machine().describe_context(), ret);
break;
default:
logerror("%s: sif_r: Unknown (%08x)\n", machine().describe_context(), 0x1000f200 + (offset << 3));
break;
}
return ret;
}
WRITE32_MEMBER(ps2sony_state::sif_w)
{
switch (offset)
{
case 0:
logerror("%s: sif_w: SIF set master->slave mailbox (%08x)\n", machine().describe_context(), data);
m_sif_ms_mailbox |= data;
break;
case 4:
logerror("%s: sif_w: SIF set master->slave flag (%08x)\n", machine().describe_context(), data);
m_sif_ms_flag |= data;
break;
case 6:
logerror("%s: sif_w: SIF clear slave->master flag (%08x)\n", machine().describe_context(), data);
m_sif_sm_flag &= ~data;
break;
case 8:
logerror("%s: sif_w: SIF control = %08x\n", machine().describe_context(), data);
m_sif_ctrl = data; // ??
break;
default:
logerror("%s: sif_w: Unknown %08x = %08x\n", machine().describe_context(), 0x1000f200 + (offset << 3), data);
break;
}
} }
void ps2sony_state::machine_start() void ps2sony_state::machine_start()
{ {
save_item(NAME(m_gs_base_regs));
save_item(NAME(m_gs_csr));
save_item(NAME(m_gs_imr));
save_item(NAME(m_gs_busdir));
save_item(NAME(m_gs_sig_label_id));
save_item(NAME(m_unk_f430_reg));
save_item(NAME(m_unk_f440_counter));
save_item(NAME(m_unk_f440_reg));
save_item(NAME(m_unk_f440_ret));
save_item(NAME(m_ipu_ctrl));
save_item(NAME(m_ipu_in_fifo));
save_item(NAME(m_ipu_in_fifo_index));
save_item(NAME(m_ipu_out_fifo));
save_item(NAME(m_ipu_out_fifo_index));
save_item(NAME(m_sif_ms_flag));
save_item(NAME(m_sif_sm_flag));
save_item(NAME(m_sif_ctrl));
save_item(NAME(m_dmac_d5_chcr));
save_item(NAME(m_istat));
save_item(NAME(m_imask));
save_item(NAME(m_iop_istat));
save_item(NAME(m_iop_imask));
save_item(NAME(m_iop_ienable));
if (!m_vblank_timer) if (!m_vblank_timer)
m_vblank_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(ps2sony_state::vblank), this)); m_vblank_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(ps2sony_state::vblank), this));
} }
void ps2sony_state::machine_reset() void ps2sony_state::machine_reset()
{ {
m_istat = 0;
m_imask = 0;
m_iop_istat = 0;
m_iop_imask = 0;
m_unk_f430_reg = 0; m_unk_f430_reg = 0;
m_unk_f440_reg = 0; m_unk_f440_reg = 0;
m_unk_f440_ret = 0; m_unk_f440_ret = 0;
@ -956,6 +1211,14 @@ void ps2sony_state::machine_reset()
m_gs_sig_label_id = 0ULL; m_gs_sig_label_id = 0ULL;
m_vblank_timer->adjust(m_screen->time_until_pos(480), 1); m_vblank_timer->adjust(m_screen->time_until_pos(480), 1);
m_sif_ms_mailbox = 0;
m_sif_sm_mailbox = 0;
m_sif_ms_flag = 0;
m_sif_sm_flag = 0;
m_sif_ctrl = 0;
m_dmac_d5_chcr = 0;
} }
TIMER_CALLBACK_MEMBER(ps2sony_state::vblank) TIMER_CALLBACK_MEMBER(ps2sony_state::vblank)
@ -963,15 +1226,15 @@ TIMER_CALLBACK_MEMBER(ps2sony_state::vblank)
if (param) if (param)
{ {
// VBlank enter // VBlank enter
printf("1 ");
raise_interrupt(INT_VB_ON); raise_interrupt(INT_VB_ON);
raise_iop_interrupt(0);
m_vblank_timer->adjust(m_screen->time_until_pos(0), 0); m_vblank_timer->adjust(m_screen->time_until_pos(0), 0);
} }
else else
{ {
printf("0 ");
// VBlank exit // VBlank exit
raise_interrupt(INT_VB_OFF); raise_interrupt(INT_VB_OFF);
raise_iop_interrupt(11);
m_vblank_timer->adjust(m_screen->time_until_pos(480), 1); m_vblank_timer->adjust(m_screen->time_until_pos(480), 1);
} }
} }
@ -981,6 +1244,28 @@ WRITE8_MEMBER(ps2sony_state::debug_w)
printf("%c", (char)data); printf("%c", (char)data);
} }
WRITE64_MEMBER(ps2sony_state::ee_iop_ram_w)
{
const uint32_t offset_hi = (offset << 1);
const uint32_t offset_lo = (offset << 1) + 1;
const uint32_t mask_hi = (uint32_t)(mem_mask >> 32);
const uint32_t mask_lo = (uint32_t)mem_mask;
m_iop_ram[offset_hi] &= ~mask_hi;
m_iop_ram[offset_hi] |= (uint32_t)(data >> 32) & mask_hi;
m_iop_ram[offset_lo] &= ~mask_lo;
m_iop_ram[offset_lo] |= (uint32_t)data & mask_lo;
}
READ64_MEMBER(ps2sony_state::ee_iop_ram_r)
{
return ((uint64_t)m_iop_ram[offset << 1] << 32) | m_iop_ram[(offset << 1) + 1];
}
READ64_MEMBER(ps2sony_state::board_id_r)
{
return 0x1234;
}
READ32_MEMBER(ps2sony_state::unk_f520_r) READ32_MEMBER(ps2sony_state::unk_f520_r)
{ {
// Unknown purpose - BIOS seems to expect this value initially // Unknown purpose - BIOS seems to expect this value initially
@ -1182,7 +1467,7 @@ void ps2sony_state::mem_map(address_map &map)
map(0x1000f000, 0x1000f017).rw(FUNC(ps2sony_state::intc_r), FUNC(ps2sony_state::intc_w)).umask64(0x00000000ffffffff); map(0x1000f000, 0x1000f017).rw(FUNC(ps2sony_state::intc_r), FUNC(ps2sony_state::intc_w)).umask64(0x00000000ffffffff);
map(0x1000f130, 0x1000f137).nopr(); map(0x1000f130, 0x1000f137).nopr();
map(0x1000f180, 0x1000f187).w(FUNC(ps2sony_state::debug_w)).umask64(0x00000000000000ff); map(0x1000f180, 0x1000f187).w(FUNC(ps2sony_state::debug_w)).umask64(0x00000000000000ff);
map(0x1000f230, 0x1000f237).rw(FUNC(ps2sony_state::sif_smflg_r), FUNC(ps2sony_state::sif_smflg_w)).umask64(0x00000000ffffffff); map(0x1000f200, 0x1000f24f).rw(FUNC(ps2sony_state::sif_r), FUNC(ps2sony_state::sif_w)).umask64(0x00000000ffffffff);
map(0x1000f430, 0x1000f437).rw(FUNC(ps2sony_state::unk_f430_r), FUNC(ps2sony_state::unk_f430_w)).umask64(0x00000000ffffffff); // Unknown map(0x1000f430, 0x1000f437).rw(FUNC(ps2sony_state::unk_f430_r), FUNC(ps2sony_state::unk_f430_w)).umask64(0x00000000ffffffff); // Unknown
map(0x1000f440, 0x1000f447).rw(FUNC(ps2sony_state::unk_f440_r), FUNC(ps2sony_state::unk_f440_w)).umask64(0x00000000ffffffff); // Unknown map(0x1000f440, 0x1000f447).rw(FUNC(ps2sony_state::unk_f440_r), FUNC(ps2sony_state::unk_f440_w)).umask64(0x00000000ffffffff); // Unknown
map(0x1000f520, 0x1000f527).r(FUNC(ps2sony_state::unk_f520_r)).umask64(0x00000000ffffffff); // Unknown map(0x1000f520, 0x1000f527).r(FUNC(ps2sony_state::unk_f520_r)).umask64(0x00000000ffffffff); // Unknown
@ -1192,7 +1477,8 @@ void ps2sony_state::mem_map(address_map &map)
map(0x1100c000, 0x1100ffff).ram().share(m_vu1_dmem); map(0x1100c000, 0x1100ffff).ram().share(m_vu1_dmem);
map(0x12000000, 0x120003ff).mirror(0xc00).rw(FUNC(ps2sony_state::gs_regs0_r), FUNC(ps2sony_state::gs_regs0_w)); map(0x12000000, 0x120003ff).mirror(0xc00).rw(FUNC(ps2sony_state::gs_regs0_r), FUNC(ps2sony_state::gs_regs0_w));
map(0x12001000, 0x120013ff).mirror(0xc00).rw(FUNC(ps2sony_state::gs_regs1_r), FUNC(ps2sony_state::gs_regs1_w)); map(0x12001000, 0x120013ff).mirror(0xc00).rw(FUNC(ps2sony_state::gs_regs1_r), FUNC(ps2sony_state::gs_regs1_w));
map(0x1c000000, 0x1c1fffff).ram().share(m_iop_ram); // IOP has 2MB EDO RAM per Wikipedia, and writes go up to this point map(0x1c000000, 0x1c1fffff).rw(FUNC(ps2sony_state::ee_iop_ram_r), FUNC(ps2sony_state::ee_iop_ram_w)); // IOP has 2MB EDO RAM per Wikipedia, and writes go up to this point
map(0x1f803800, 0x1f803807).r(FUNC(ps2sony_state::board_id_r));
map(0x1fc00000, 0x1fffffff).rom().region("bios", 0); map(0x1fc00000, 0x1fffffff).rom().region("bios", 0);
map(0x70000000, 0x70003fff).ram().share(m_sp_ram); // 16KB Scratchpad RAM map(0x70000000, 0x70003fff).ram().share(m_sp_ram); // 16KB Scratchpad RAM
@ -1201,30 +1487,45 @@ void ps2sony_state::mem_map(address_map &map)
void ps2sony_state::iop_map(address_map &map) void ps2sony_state::iop_map(address_map &map)
{ {
map(0x00000000, 0x001fffff).ram().share(m_iop_ram); map(0x00000000, 0x001fffff).ram().share(m_iop_ram);
map(0x1f802070, 0x1f802073).noprw(); map(0x1d000000, 0x1d00004f).rw(FUNC(ps2sony_state::iop_sif_r), FUNC(ps2sony_state::iop_sif_w));
map(0x1fc00000, 0x1fdfffff).rom().region("bios", 0); map(0x1f402004, 0x1f402007).nopr();
map(0x1f801070, 0x1f80107b).rw(FUNC(ps2sony_state::iop_intc_r), FUNC(ps2sony_state::iop_intc_w));
map(0x1f8010f0, 0x1f8010f7).rw(m_iop_dma, FUNC(iop_dma_device::ctrl0_r), FUNC(iop_dma_device::ctrl0_w));
map(0x1f801450, 0x1f801453).noprw();
map(0x1f8014a0, 0x1f8014af).rw(m_iop_timer, FUNC(iop_timer_device::read), FUNC(iop_timer_device::write));
map(0x1f801570, 0x1f801577).rw(m_iop_dma, FUNC(iop_dma_device::ctrl1_r), FUNC(iop_dma_device::ctrl1_w));
map(0x1f801578, 0x1f80157b).noprw();
map(0x1f802070, 0x1f802073).w(FUNC(ps2sony_state::iop_debug_w)).nopr();
map(0x1fc00000, 0x1fffffff).rom().region("bios", 0);
map(0x1ffe0130, 0x1ffe0133).nopw();
} }
static INPUT_PORTS_START( ps2sony ) static INPUT_PORTS_START( ps2sony )
INPUT_PORTS_END INPUT_PORTS_END
MACHINE_CONFIG_START(ps2sony_state::ps2sony) MACHINE_CONFIG_START(ps2sony_state::ps2sony)
MCFG_DEVICE_ADD("maincpu", R5900LE, 294'912'000) MCFG_DEVICE_ADD(m_maincpu, R5900LE, 294'912'000)
MCFG_CPU_FORCE_NO_DRC() MCFG_CPU_FORCE_NO_DRC()
MCFG_MIPS3_ICACHE_SIZE(16384) MCFG_MIPS3_ICACHE_SIZE(16384)
MCFG_MIPS3_DCACHE_SIZE(16384) MCFG_MIPS3_DCACHE_SIZE(16384)
MCFG_DEVICE_PROGRAM_MAP(mem_map) MCFG_DEVICE_PROGRAM_MAP(mem_map)
MCFG_DEVICE_ADD("iop", SONYPS2_IOP, XTAL(67'737'600)/2) MCFG_DEVICE_ADD(m_iop, SONYPS2_IOP, XTAL(67'737'600)/2)
MCFG_DEVICE_PROGRAM_MAP(iop_map) MCFG_DEVICE_PROGRAM_MAP(iop_map)
MCFG_QUANTUM_TIME(attotime::from_hz(1000000)) MCFG_QUANTUM_PERFECT_CPU("maincpu")
MCFG_QUANTUM_PERFECT_CPU("iop")
MCFG_DEVICE_ADD(m_timer[0], SONYPS2_TIMER, 294912000/2, true) MCFG_DEVICE_ADD(m_timer[0], SONYPS2_TIMER, 294912000/2, true)
MCFG_DEVICE_ADD(m_timer[1], SONYPS2_TIMER, 294912000/2, true) MCFG_DEVICE_ADD(m_timer[1], SONYPS2_TIMER, 294912000/2, true)
MCFG_DEVICE_ADD(m_timer[2], SONYPS2_TIMER, 294912000/2, false) MCFG_DEVICE_ADD(m_timer[2], SONYPS2_TIMER, 294912000/2, false)
MCFG_DEVICE_ADD(m_timer[3], SONYPS2_TIMER, 294912000/2, false) MCFG_DEVICE_ADD(m_timer[3], SONYPS2_TIMER, 294912000/2, false)
MCFG_DEVICE_ADD(m_iop_timer, SONYIOP_TIMER, XTAL(67'737'600)/2)
MCFG_IOP_TIMER_IRQ_CALLBACK(WRITELINE(*this, ps2sony_state, iop_timer_irq))
MCFG_DEVICE_ADD(m_iop_dma, SONYIOP_DMA, XTAL(67'737'600)/2)
/* video hardware */ /* video hardware */
MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_REFRESH_RATE(60)

138
src/mame/machine/iopdma.cpp Normal file
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@ -0,0 +1,138 @@
// license:BSD-3-Clause
// copyright-holders:Ryan Holtz
/******************************************************************************
*
* Sony Playstation 2 IOP DMA device skeleton
*
* To Do:
* Everything
*
*/
#include "iopdma.h"
DEFINE_DEVICE_TYPE(SONYIOP_DMA, iop_dma_device, "iopdma", "Sony IOP DMA")
iop_dma_device::iop_dma_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, SONYIOP_DMA, tag, owner, clock)
{
}
void iop_dma_device::device_start()
{
}
void iop_dma_device::device_reset()
{
m_dpcr[0] = 0;
m_dpcr[1] = 0;
m_dicr[0] = 0;
m_dicr[1] = 0;
}
READ32_MEMBER(iop_dma_device::ctrl0_r)
{
uint32_t ret = 0;
switch (offset)
{
case 0: // 0x1f8010f0, DPCR
ret = m_dpcr[0];
logerror("%s: ctrl0_r: DPCR (%08x)\n", machine().describe_context(), ret);
break;
case 1: // 0x1f8010f4, DICR
ret = m_dicr[0];
logerror("%s: ctrl0_r: DICR (%08x)\n", machine().describe_context(), ret);
break;
default:
// Can't happen
break;
}
return ret;
}
WRITE32_MEMBER(iop_dma_device::ctrl0_w)
{
switch (offset)
{
case 0: // 0x1f8010f0, DPCR
logerror("%s: ctrl0_w: DPCR = %08x\n", machine().describe_context(), data);
set_dpcr(data, 0);
break;
case 1: // 0x1f8010f4, DICR
logerror("%s: ctrl0_w: DICR = %08x\n", machine().describe_context(), data);
set_dicr(data, 0);
break;
default:
// Can't happen
break;
}
}
READ32_MEMBER(iop_dma_device::ctrl1_r)
{
uint32_t ret = 0;
switch (offset)
{
case 0: // 0x1f801570, DPCR2
ret = m_dpcr[1];
logerror("%s: ctrl1_r: DPCR2 (%08x)\n", machine().describe_context(), ret);
break;
case 1: // 0x1f801574, DICR2
ret = m_dicr[1];
logerror("%s: ctrl1_r: DICR2 (%08x)\n", machine().describe_context(), ret);
break;
default:
// Can't happen
break;
}
return ret;
}
WRITE32_MEMBER(iop_dma_device::ctrl1_w)
{
switch (offset)
{
case 0: // 0x1f8010f0, DPCR
logerror("%s: ctrl1_w: DPCR2 = %08x\n", machine().describe_context(), data);
set_dpcr(data, 1);
break;
case 1: // 0x1f8010f4, DICR
logerror("%s: ctrl1_w: DICR2 = %08x\n", machine().describe_context(), data);
set_dicr(data, 1);
break;
default:
// Can't happen
break;
}
}
void iop_dma_device::update_interrupts()
{
// TODO
}
void iop_dma_device::set_dpcr(uint32_t data, uint32_t index)
{
m_dpcr[index] = data;
for (uint32_t channel = index*8, bit = 0; channel < index*8 + 8; channel++, bit += 4)
{
const uint8_t field = (data >> bit) & 0xf;
const bool was_enabled = m_channels[channel].m_enabled;
const bool is_enabled = BIT(field, 3);
m_channels[channel].m_enabled = is_enabled;
m_channels[channel].m_priority = field & 7;
if (!was_enabled && is_enabled)
{
// Check for running status?
}
}
}
void iop_dma_device::set_dicr(uint32_t data, uint32_t index)
{
m_dicr[index] = data;
m_int_ctrl[index].m_mask = (data >> 16) & 0x7f;
m_int_ctrl[index].m_status &= ~((data >> 24) & 0x7f);
m_int_ctrl[index].m_enabled = BIT(data, 23);
update_interrupts();
}

58
src/mame/machine/iopdma.h Normal file
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@ -0,0 +1,58 @@
// license:BSD-3-Clause
// copyright-holders:Ryan Holtz
/******************************************************************************
*
* Sony Playstation 2 IOP DMA device skeleton
*
* To Do:
* Everything
*
*/
#ifndef MAME_MACHINE_IOPDMA_H
#define MAME_MACHINE_IOPDMA_H
#pragma once
#include "emu.h"
class iop_dma_device : public device_t
{
public:
iop_dma_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
DECLARE_READ32_MEMBER(ctrl0_r);
DECLARE_WRITE32_MEMBER(ctrl0_w);
DECLARE_READ32_MEMBER(ctrl1_r);
DECLARE_WRITE32_MEMBER(ctrl1_w);
protected:
struct intctrl_t
{
uint8_t m_mask;
uint8_t m_status;
bool m_enabled;
};
struct channel_t
{
uint8_t m_priority;
bool m_enabled;
};
virtual void device_start() override;
virtual void device_reset() override;
void set_dpcr(uint32_t data, uint32_t index);
void set_dicr(uint32_t data, uint32_t index);
void update_interrupts();
uint32_t m_dpcr[2];
uint32_t m_dicr[2];
channel_t m_channels[16];
intctrl_t m_int_ctrl[2];
};
DECLARE_DEVICE_TYPE(SONYIOP_DMA, iop_dma_device)
#endif // MAME_MACHINE_IOPDMA_H

262
src/mame/machine/ioptimer.cpp Normal file
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@ -0,0 +1,262 @@
// license:BSD-3-Clause
// copyright-holders:Ryan Holtz
/******************************************************************************
*
* Sony Playstation 2 IOP Timer device skeleton
*
* To Do:
* Everything
*
*/
#include "ioptimer.h"
DEFINE_DEVICE_TYPE(SONYIOP_TIMER, iop_timer_device, "ioptimer", "Sony IOP Timer")
iop_timer_device::iop_timer_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, SONYIOP_TIMER, tag, owner, clock)
, m_compare_timer(nullptr)
, m_overflow_timer(nullptr)
, m_last_update_time(attotime::zero)
, m_elapsed_time(attotime::zero)
, m_zero_return(false)
, m_count(0)
, m_compare(0)
, m_gate_enable(false)
, m_gate_mode(GATM_LOW)
, m_cmp_int_enabled(false)
, m_cmp_int(false)
, m_ovf_int_enabled(false)
, m_ovf_int(false)
, m_ienable(false)
, m_int_cb(*this)
{
}
void iop_timer_device::device_start()
{
m_int_cb.resolve_safe();
if (!m_compare_timer)
m_compare_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(iop_timer_device::compare), this));
if (!m_overflow_timer)
m_overflow_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(iop_timer_device::overflow), this));
}
void iop_timer_device::device_reset()
{
m_ctrl = 0;
m_last_update_time = attotime::zero;
m_elapsed_time = attotime::zero;
m_zero_return = false;
m_count = 0;
m_compare = 0;
m_gate_enable = false;
m_gate_mode = GATM_LOW;
m_cmp_int_enabled = false;
m_cmp_int = false;
m_ovf_int_enabled = false;
m_ovf_int = false;
m_ienable = false;
m_compare_timer->adjust(attotime::never);
m_overflow_timer->adjust(attotime::never);
}
void iop_timer_device::update_gate()
{
// TODO
}
void iop_timer_device::update_interrupts()
{
if (!m_int_cb.isnull())
{
bool interrupt = m_ienable && ((m_ovf_int && m_ovf_int_enabled) || (m_cmp_int && m_cmp_int_enabled));
m_int_cb(interrupt);
}
}
void iop_timer_device::update_compare_timer()
{
// TODO: Compare timer functionality is a total guess
if (!m_ienable || !m_cmp_int_enabled)
m_compare_timer->adjust(attotime::never);
m_compare_timer->adjust(attotime::from_ticks(m_compare - m_count, clock()));
}
void iop_timer_device::update_overflow_timer()
{
// TODO: Overflow timer functionality is not used yet, total guess
/*
uint32_t ticks = 0;
if (m_zero_return)
{
if (m_compare > m_count)
ticks = m_compare - m_count;
else
ticks = (uint32_t)(0x100000000ULL - (m_count - m_compare));
}
else
{
ticks = (uint32_t)(0x100000000ULL - m_count);
}
*/
m_overflow_timer->adjust(attotime::never);
}
void iop_timer_device::update_count()
{
attotime curr_time = machine().scheduler().time();
attotime time_delta = curr_time - m_last_update_time;
m_last_update_time = curr_time;
m_elapsed_time += time_delta;
uint32_t ticks = (uint32_t)m_elapsed_time.as_ticks(clock());
if (ticks > 0)
{
m_elapsed_time -= attotime::from_ticks(ticks, clock());
m_count += ticks;
}
}
void iop_timer_device::set_ctrl(uint32_t data)
{
static const char *gatm_names[4] = { "low?", "reset+rising?", "reset+falling?", "reset+both?" };
logerror("%s: set_ctrl: GATE=%d, GATM=%s, ZRET=%d\n", machine().describe_context(), data & CTRL_GATE, gatm_names[(data & CTRL_GATM) >> 1], (data & CTRL_ZRET) >> 3);
logerror("%s: CMPE=%d, OVFE=%d, REP_INT=%d, TOG_INT=%d\n", machine().describe_context(), (data & CTRL_CMPE) >> 4, (data & CTRL_OVFE) >> 5, (data & CTRL_REPI) >> 6, (data & CTRL_TOGI) >> 7);
const uint32_t old = m_ctrl;
m_ctrl = data | CTRL_INTE;
const uint32_t changed = old ^ data;
if (!changed) return;
m_gate_enable = data & CTRL_GATE;
m_gate_mode = (timer_gate_mode)((data & CTRL_GATM) >> 1);
m_zero_return = (data & CTRL_ZRET) >> 3;
m_cmp_int_enabled = (data & CTRL_CMPE) >> 4;
m_ovf_int_enabled = (data & CTRL_OVFE) >> 5;
m_repeat_int = (data & CTRL_REPI) >> 6;
m_toggle_int = (data & CTRL_TOGI) >> 7;
m_ienable = 1;
m_count = 0;
if (changed & CTRL_CMPE)
{
if (data & CTRL_CMPE)
update_compare_timer();
else
m_compare_timer->adjust(attotime::never);
}
if (changed & CTRL_OVFE)
{
if (data & CTRL_OVFE)
update_overflow_timer();
else
m_overflow_timer->adjust(attotime::never);
}
if (changed & CTRL_INTE)
{
update_interrupts();
}
}
TIMER_CALLBACK_MEMBER(iop_timer_device::compare)
{
if (m_zero_return)
{
m_count = 0; // Guess
update_compare_timer();
}
else
{
m_compare_timer->adjust(attotime::never);
}
if (m_cmp_int_enabled)
m_cmp_int = 1;
update_interrupts();
}
TIMER_CALLBACK_MEMBER(iop_timer_device::overflow)
{
if (m_ovf_int_enabled)
m_ovf_int = 1;
update_interrupts();
}
READ32_MEMBER(iop_timer_device::read)
{
uint32_t ret = 0;
switch (offset)
{
case 0x00:
{
const uint32_t old = m_count;
update_count();
ret = m_count;
if (old != m_count)
logerror("%s: IOP timer read: COUNT (%08x)\n", machine().describe_context(), ret);
break;
}
case 0x01:
ret = m_ctrl | (m_ovf_int ? CTRL_OVFF : 0) | (m_cmp_int ? CTRL_CMPF : 0);
logerror("%s: IOP timer read: MODE (%08x)\n", machine().describe_context(), ret);
break;
case 0x02:
ret = m_compare;
logerror("%s: IOP timer read: COMPARE (%08x)\n", machine().describe_context(), ret);
break;
default:
break;
}
return ret;
}
WRITE32_MEMBER(iop_timer_device::write)
{
switch (offset)
{
case 0x00:
m_count = data;
logerror("%s: IOP timer write: COUNT = %08x\n", machine().describe_context(), data);
update_compare_timer();
update_overflow_timer();
break;
case 0x01:
set_ctrl(data);
break;
case 0x02:
{
logerror("%s: IOP timer write: COMPARE = %08x\n", machine().describe_context(), data);
if (m_compare == data)
break;
m_compare = data;
if (!m_toggle_int)
m_ienable = true;
update_compare_timer();
break;
}
default:
break;
}
}

100
src/mame/machine/ioptimer.h Normal file
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@ -0,0 +1,100 @@
// license:BSD-3-Clause
// copyright-holders:Ryan Holtz
/******************************************************************************
*
* Sony Playstation 2 IOP Timer device skeleton
*
* To Do:
* Everything
*
*/
#ifndef MAME_MACHINE_IOPTIMER_H
#define MAME_MACHINE_IOPTIMER_H
#pragma once
#include "emu.h"
#define MCFG_IOP_TIMER_IRQ_CALLBACK(_write) \
devcb = &downcast<iop_timer_device &>(*device).set_int_cb(DEVCB_##_write);
class iop_timer_device : public device_t
{
public:
iop_timer_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
template <class Object> devcb_base &set_int_cb(Object &&cb) { return m_int_cb.set_callback(std::forward<Object>(cb)); }
DECLARE_READ32_MEMBER(read);
DECLARE_WRITE32_MEMBER(write);
protected:
enum timer_ctrl_mask : uint32_t
{
CTRL_GATE = (1 << 0),
CTRL_GATM = (3 << 1),
CTRL_ZRET = (1 << 3),
CTRL_CMPE = (1 << 4),
CTRL_OVFE = (1 << 5),
CTRL_REPI = (1 << 6),
CTRL_TOGI = (1 << 7),
CTRL_INTE = (1 << 10),
CTRL_CMPF = (1 << 11),
CTRL_OVFF = (1 << 12),
};
enum timer_gate_mode : uint32_t
{
GATM_LOW = 0,
GATM_RISING,
GATM_FALLING,
GATM_BOTH
};
virtual void device_start() override;
virtual void device_reset() override;
TIMER_CALLBACK_MEMBER(compare);
TIMER_CALLBACK_MEMBER(overflow);
void set_ctrl(uint32_t data);
void update_gate();
void update_interrupts();
void update_compare_timer();
void update_overflow_timer();
void update_count();
emu_timer *m_compare_timer;
emu_timer *m_overflow_timer;
uint32_t m_ctrl;
attotime m_last_update_time;
attotime m_elapsed_time;
bool m_zero_return;
uint32_t m_count;
uint32_t m_compare;
bool m_gate_enable;
timer_gate_mode m_gate_mode;
bool m_cmp_int_enabled;
bool m_cmp_int;
bool m_ovf_int_enabled;
bool m_ovf_int;
bool m_repeat_int;
bool m_toggle_int;
bool m_ienable;
devcb_write_line m_int_cb;
};
DECLARE_DEVICE_TYPE(SONYIOP_TIMER, iop_timer_device)
#endif // MAME_MACHINE_IOPTIMER_H

1
src/mame/machine/ps2timer.cpp
View File

@ -130,6 +130,7 @@ void ps2_timer_device::update_count()
{ {
m_elapsed_time -= attotime::from_ticks(ticks, frequency); m_elapsed_time -= attotime::from_ticks(ticks, frequency);
m_count += ticks; m_count += ticks;
m_count &= 0xffff;
} }
} }