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tms32051: add idle instruction (nw)

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This commit is contained in:
Ville Linde 2015-12-12 02:48:39 +02:00
parent 799c299ade
commit c0814124b5
3 changed files with 70 additions and 37 deletions
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6
src/devices/cpu/tms32051/32051ops.inc
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@ -1150,10 +1150,10 @@ void tms32051_device::op_rete()
UINT16 pc = POP_STACK();
CHANGE_PC(pc);
m_st0.intm = 0;
restore_interrupt_context();
m_st0.intm = 0;
CYCLES(4);
}
@ -1675,7 +1675,7 @@ void tms32051_device::op_clrc_xf()
void tms32051_device::op_idle()
{
fatalerror("32051: unimplemented op idle at %08X\n", m_pc-1);
m_idle = true;
}
void tms32051_device::op_idle2()

99
src/devices/cpu/tms32051/tms32051.cpp
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@ -35,7 +35,15 @@ enum
TMS32051_AR4,
TMS32051_AR5,
TMS32051_AR6,
TMS32051_AR7
TMS32051_AR7,
TMS32051_IFR,
TMS32051_IMR,
TMS32051_ST0_ARP,
TMS32051_ST0_INTM,
TMS32051_ST0_DP,
TMS32051_ST1_ARB,
TMS32051_TIM,
TMS32051_PSC
};
@ -93,7 +101,7 @@ static ADDRESS_MAP_START( tms32053_internal_data, AS_DATA, 16, tms32053_device )
AM_RANGE(0x0060, 0x007f) AM_RAM // DARAM B2
AM_RANGE(0x0100, 0x02ff) AM_RAM AM_SHARE("daram_b0") // DARAM B0 TODO: is unconnected if CNF = 1
AM_RANGE(0x0300, 0x04ff) AM_RAM // DARAM B1
AM_RANGE(0x0800, 0x0bff) AM_RAM AM_SHARE("saram") // SARAM TODO: is off-chip if OVLY = 0
AM_RANGE(0x0800, 0x13ff) AM_RAM AM_SHARE("saram") // SARAM TODO: is off-chip if OVLY = 0
ADDRESS_MAP_END
@ -225,6 +233,15 @@ void tms32051_device::device_start()
state_add( TMS32051_AR6, "AR6", m_ar[6]).formatstr("%04X");
state_add( TMS32051_AR7, "AR7", m_ar[7]).formatstr("%04X");
state_add( TMS32051_IFR, "IFR", m_ifr).formatstr("%04X");
state_add( TMS32051_IMR, "IMR", m_imr).formatstr("%04X");
state_add( TMS32051_ST0_ARP, "ST0 ARP", m_st0.arp).formatstr("%1d");
state_add( TMS32051_ST0_INTM, "ST0 INTM", m_st0.intm).formatstr("%1d");
state_add( TMS32051_ST0_DP, "ST0 DP", m_st0.dp).formatstr("%04X");
state_add( TMS32051_ST1_ARB, "ST1 ARB", m_st1.arb).formatstr("%04X");
state_add( TMS32051_TIM, "TIM", m_timer.tim).formatstr("%04X");
state_add( TMS32051_PSC, "PSC", m_timer.psc).formatstr("%04X");
state_add(STATE_GENPC, "GENPC", m_pc).formatstr("%04X").noshow();
m_icountptr = &m_icount;
@ -253,6 +270,8 @@ void tms32051_device::device_reset()
m_cbcr = 0;
m_rptc = -1;
m_idle = false;
// simulate internal rom boot loader (can be removed when the dsp rom(s) is dumped)
m_st0.intm = 1;
m_st1.cnf = 1;
@ -290,6 +309,8 @@ void tms32051_device::check_interrupts()
m_pc = (m_pmst.iptr << 11) | ((i+1) << 1);
m_ifr &= ~(1 << i);
m_idle = false;
save_interrupt_context();
break;
}
@ -347,42 +368,50 @@ void tms32051_device::execute_run()
{
UINT16 ppc;
// handle block repeat
if (m_pmst.braf)
if (m_idle)
{
if (m_pc == m_paer)
{
if (m_brcr > 0)
{
CHANGE_PC(m_pasr);
}
m_brcr--;
if (m_brcr <= 0)
{
m_pmst.braf = 0;
}
}
}
ppc = m_pc;
debugger_instruction_hook(this, m_pc);
m_op = ROPCODE();
(this->*s_opcode_table[m_op >> 8])();
// handle single repeat
if (m_rptc > 0)
{
if (ppc == m_rpt_end)
{
CHANGE_PC(m_rpt_start);
m_rptc--;
}
debugger_instruction_hook(this, m_pc);
CYCLES(1);
}
else
{
m_rptc = 0;
// handle block repeat
if (m_pmst.braf)
{
if (m_pc == m_paer)
{
if (m_brcr > 0)
{
CHANGE_PC(m_pasr);
}
m_brcr--;
if (m_brcr <= 0)
{
m_pmst.braf = 0;
}
}
}
ppc = m_pc;
debugger_instruction_hook(this, m_pc);
m_op = ROPCODE();
(this->*s_opcode_table[m_op >> 8])();
// handle single repeat
if (m_rptc > 0)
{
if (ppc == m_rpt_end)
{
CHANGE_PC(m_rpt_start);
m_rptc--;
}
}
else
{
m_rptc = 0;
}
}
m_timer.psc--;
@ -598,6 +627,8 @@ void tms32053_device::device_reset()
m_cbcr = 0;
m_rptc = -1;
m_idle = false;
CHANGE_PC(0);
}

2
src/devices/cpu/tms32051/tms32051.h
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@ -164,6 +164,8 @@ protected:
address_space *m_data;
int m_icount;
bool m_idle;
inline void CHANGE_PC(UINT16 new_pc);
inline UINT16 PM_READ16(UINT16 address);
inline void PM_WRITE16(UINT16 address, UINT16 data);