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Merged
merged 2 commits into from
Sep 28, 2025
+1,449 −86
Merged

Roland PG-1000: Added internal layout and complete driver implementation #14127

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7fc3536
Roland PG-1000: Complete driver implementation + internal layout
felipesanches Aug 29, 2025
6566e90
There's a pull-up resistor on the RXD pin.
felipesanches Sep 27, 2025
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6 changes: 6 additions & 0 deletions src/devices/cpu/upd7810/upd7810.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -813,6 +813,12 @@ void upd7801_device::write_pc(uint8_t data)
m_pc_out_cb(data);
}

void upd7810_device::write_smh(uint8_t data)
{
if (!BIT(SMH, 2) && BIT(data, 2)) IRR |= INTFST;
SMH = data;
}

void upd7810_device::upd7810_take_irq()
{
uint16_t vector = 0;
Expand Down
1 change: 1 addition & 0 deletions src/devices/cpu/upd7810/upd7810.h
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Expand Up @@ -202,6 +202,7 @@ class upd7810_device : public cpu_device
virtual void configure_ops();
virtual uint8_t read_pc();
virtual void write_pc(uint8_t data);
void write_smh(uint8_t data);

static const struct opcode_s s_op48[256];
static const struct opcode_s s_op4C[256];
Expand Down
29 changes: 16 additions & 13 deletions src/devices/cpu/upd7810/upd7810_opcodes.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1013,7 +1013,7 @@ void upd7810_device::MOV_ANM_A()
/* 4d c9: 0100 1101 1100 1001 */
void upd7810_device::MOV_SMH_A()
{
SMH = A;
write_smh(A);
}

/* 4d ca: 0100 1101 1100 1010 */
Expand Down Expand Up @@ -4093,7 +4093,10 @@ void upd7810_device::MVI_ANM_xx()
/* 64 81: 0110 0100 1000 0001 xxxx xxxx */
void upd7810_device::MVI_SMH_xx()
{
RDOPARG( SMH );
uint8_t imm;

RDOPARG( imm );
write_smh(imm);
}

/* 64 83: 0110 0100 1000 0011 xxxx xxxx */
Expand Down Expand Up @@ -4125,7 +4128,7 @@ void upd7810_device::ANI_SMH_xx()
uint8_t imm;

RDOPARG( imm );
SMH &= imm;
write_smh(SMH & imm);
SET_Z(SMH);
}

Expand Down Expand Up @@ -4169,7 +4172,7 @@ void upd7810_device::XRI_SMH_xx()
uint8_t imm;

RDOPARG( imm );
SMH ^= imm;
write_smh(SMH ^ imm);
SET_Z(SMH);
}

Expand Down Expand Up @@ -4213,7 +4216,7 @@ void upd7810_device::ORI_SMH_xx()
uint8_t imm;

RDOPARG( imm );
SMH |= imm;
write_smh(SMH | imm);
SET_Z(SMH);
}

Expand Down Expand Up @@ -4263,7 +4266,7 @@ void upd7810_device::ADINC_SMH_xx()
tmp = SMH + imm;

ZHC_ADD( tmp, SMH, 0 );
SMH = tmp;
write_smh(tmp);
SKIP_NC;
}

Expand Down Expand Up @@ -4371,7 +4374,7 @@ void upd7810_device::SUINB_SMH_xx()
RDOPARG( imm );
tmp = SMH - imm;
ZHC_SUB( tmp, SMH, 0 );
SMH = tmp;
write_smh(tmp);
SKIP_NC;
}

Expand Down Expand Up @@ -4469,7 +4472,7 @@ void upd7810_device::ADI_SMH_xx()
tmp = SMH + imm;

ZHC_ADD( tmp, SMH, 0 );
SMH = tmp;
write_smh(tmp);
}

/* 64 c3: 0110 0100 1100 0011 xxxx xxxx */
Expand Down Expand Up @@ -4562,7 +4565,7 @@ void upd7810_device::ACI_SMH_xx()
tmp = SMH + imm + (PSW & CY);

ZHC_ADD( tmp, SMH, (PSW & CY) );
SMH = tmp;
write_smh(tmp);
}

/* 64 d3: 0110 0100 1101 0011 xxxx xxxx */
Expand Down Expand Up @@ -4653,7 +4656,7 @@ void upd7810_device::SUI_SMH_xx()
RDOPARG( imm );
tmp = SMH - imm;
ZHC_SUB( tmp, SMH, 0 );
SMH = tmp;
write_smh(tmp);
}

/* 64 e3: 0110 0100 1110 0011 xxxx xxxx */
Expand Down Expand Up @@ -4746,7 +4749,7 @@ void upd7810_device::SBI_SMH_xx()
RDOPARG( imm );
tmp = SMH - imm - (PSW & CY);
ZHC_SUB( tmp, SMH, (PSW & CY) );
SMH = tmp;
write_smh(tmp);
}

/* 64 f3: 0110 0100 1111 0011 xxxx xxxx */
Expand Down Expand Up @@ -8746,7 +8749,7 @@ void upd7810_device::SETB()
MKL |= (1 << bit);
break;
case 0x19: /* SMH */
SMH |= (1 << bit);
write_smh(SMH | (1 << bit));
break;
case 0x1b: /* EOM */
EOM |= (1 << bit);
Expand Down Expand Up @@ -8796,7 +8799,7 @@ void upd7810_device::CLR()
MKL &= ~(1 << bit);
break;
case 0x19: /* SMH */
SMH &= ~(1 << bit);
write_smh(SMH & ~(1 << bit));
break;
case 0x1b: /* EOM */
EOM &= ~(1 << bit);
Expand Down
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