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added tms1980 device

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hap 2015-09-26 22:06:55 +02:00
parent 55a7498af4
commit ff42b62b5c
2 changed files with 60 additions and 21 deletions
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62
src/devices/cpu/tms0980/tms0980.c
View File

@ -169,6 +169,13 @@ const device_type TMS1670 = &device_creator<tms1670_cpu_device>; // high voltage
// - 16-term output PLA and segment PLA above the RAM (rotate opla 90 degrees)
const device_type TMS0980 = &device_creator<tms0980_cpu_device>; // 28-pin DIP, 9 R pins
// TMS1980 is a TMS0980 with a TMS1x00 style opla
// - RAM, ROM, and main instructions PLA is exactly the same as TMS0980
// - one of the microinstructions redirects to a RSTR instruction, like on TMS0270
// - 32-term output PLA above the RAM, 7 bits!
const device_type TMS1980 = &device_creator<tms1980_cpu_device>; // 28-pin DIP, 7 O pins, 9 R pins, high voltage
// TMS0260 is same?
// TMS0970 is a stripped-down version of the TMS0980, itself acting more like a TMS1000
// - RAM and ROM is exactly the same as TMS1000
// - main instructions PLA at the top half, to the right of the midline
@ -184,7 +191,6 @@ const device_type TMS1990 = &device_creator<tms1990_cpu_device>; // 28-pin DIP,
// - 48-term output PLA above the RAM (rotate opla 90 degrees)
const device_type TMS0270 = &device_creator<tms0270_cpu_device>; // 40-pin DIP, 16 O pins, 8+ R pins (some R pins are internally hooked up to support more I/O)
// newer TMS0270 chips (eg. Speak & Math) have 42 pins
// TMS0260 is similar? except opla is 32 instead of 48 terms
// internal memory maps
@ -309,6 +315,10 @@ tms0980_cpu_device::tms0980_cpu_device(const machine_config &mconfig, device_typ
: tms0970_cpu_device(mconfig, type, name, tag, owner, clock, o_pins, r_pins, pc_bits, byte_bits, x_bits, prgwidth, program, datawidth, data, shortname, source)
{ }
tms1980_cpu_device::tms1980_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
: tms0980_cpu_device(mconfig, TMS1980, "TMS1980", tag, owner, clock, 7, 9, 7, 9, 4, 12, ADDRESS_MAP_NAME(program_11bit_9), 6, ADDRESS_MAP_NAME(data_64x9_as4), "tms1980", __FILE__)
{ }
tms0270_cpu_device::tms0270_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
: tms0980_cpu_device(mconfig, TMS0270, "TMS0270", tag, owner, clock, 16, 16, 7, 9, 4, 12, ADDRESS_MAP_NAME(program_11bit_9), 8, ADDRESS_MAP_NAME(data_64x9_as4), "tms0270", __FILE__)
@ -387,6 +397,23 @@ machine_config_constructor tms0980_cpu_device::device_mconfig_additions() const
}
static MACHINE_CONFIG_FRAGMENT(tms1980)
// main opcodes PLA, microinstructions PLA, output PLA
MCFG_PLA_ADD("ipla", 9, 22, 24)
MCFG_PLA_FILEFORMAT(PLA_FMT_BERKELEY)
MCFG_PLA_ADD("mpla", 6, 21, 64)
MCFG_PLA_FILEFORMAT(PLA_FMT_BERKELEY)
MCFG_PLA_ADD("opla", 5, 7, 32)
MCFG_PLA_FILEFORMAT(PLA_FMT_BERKELEY)
MACHINE_CONFIG_END
machine_config_constructor tms1980_cpu_device::device_mconfig_additions() const
{
return MACHINE_CONFIG_NAME(tms1980);
}
static MACHINE_CONFIG_FRAGMENT(tms0270)
// main opcodes PLA, microinstructions PLA, output PLA
@ -441,8 +468,8 @@ void tms1xxx_cpu_device::state_string_export(const device_state_entry &entry, st
enum
{
TMS0980_PC=1, TMS0980_SR, TMS0980_PA, TMS0980_PB,
TMS0980_A, TMS0980_X, TMS0980_Y, TMS0980_STATUS
TMS1XXX_PC=1, TMS1XXX_SR, TMS1XXX_PA, TMS1XXX_PB,
TMS1XXX_A, TMS1XXX_X, TMS1XXX_Y, TMS1XXX_STATUS
};
void tms1xxx_cpu_device::device_start()
@ -538,14 +565,14 @@ void tms1xxx_cpu_device::device_start()
save_item(NAME(m_subcycle));
// register state for debugger
state_add(TMS0980_PC, "PC", m_pc ).formatstr("%02X");
state_add(TMS0980_SR, "SR", m_sr ).formatstr("%01X");
state_add(TMS0980_PA, "PA", m_pa ).formatstr("%01X");
state_add(TMS0980_PB, "PB", m_pb ).formatstr("%01X");
state_add(TMS0980_A, "A", m_a ).formatstr("%01X");
state_add(TMS0980_X, "X", m_x ).formatstr("%01X");
state_add(TMS0980_Y, "Y", m_y ).formatstr("%01X");
state_add(TMS0980_STATUS, "STATUS", m_status).formatstr("%01X");
state_add(TMS1XXX_PC, "PC", m_pc ).formatstr("%02X");
state_add(TMS1XXX_SR, "SR", m_sr ).formatstr("%01X");
state_add(TMS1XXX_PA, "PA", m_pa ).formatstr("%01X");
state_add(TMS1XXX_PB, "PB", m_pb ).formatstr("%01X");
state_add(TMS1XXX_A, "A", m_a ).formatstr("%01X");
state_add(TMS1XXX_X, "X", m_x ).formatstr("%01X");
state_add(TMS1XXX_Y, "Y", m_y ).formatstr("%01X");
state_add(TMS1XXX_STATUS, "STATUS", m_status).formatstr("%01X");
state_add(STATE_GENPC, "curpc", m_rom_address).formatstr("%03X").noshow();
state_add(STATE_GENFLAGS, "GENFLAGS", m_sr).formatstr("%8s").noshow();
@ -735,7 +762,7 @@ UINT32 tms0980_cpu_device::decode_micro(UINT8 sel)
UINT32 mask = m_mpla->read(sel);
mask ^= 0x43fc3; // invert active-negative
// M_RSTR is specific to TMS02x0, it redirects to F_RSTR
// M_RSTR is specific to TMS02x0/TMS1980, it redirects to F_RSTR
// M_UNK1 is specific to TMS0270, unknown yet
// _______ ______ _____ _____ _____ _____ ______ _____ ______ _____ _____
const UINT32 md[22] = { M_NDMTP, M_DMTP, M_AUTY, M_AUTA, M_CKM, M_SSE, M_CKP, M_YTP, M_MTP, M_ATN, M_NATN, M_MTN, M_15TN, M_CKN, M_NE, M_C8, M_SSS, M_CME, M_CIN, M_STO, M_RSTR, M_UNK1 };
@ -844,16 +871,11 @@ void tms0980_cpu_device::read_opcode()
else
m_micro = m_micro_decode[m_opcode];
next_pc();
}
void tms0270_cpu_device::read_opcode()
{
tms0980_cpu_device::read_opcode();
// RSTR is on the mpla
// TMS02x0/TMS1980: RSTR is on the mpla
if (m_micro & M_RSTR)
m_fixed |= F_RSTR;
next_pc();
}

19
src/devices/cpu/tms0980/tms0980.h
View File

@ -405,6 +405,23 @@ protected:
UINT32 decode_micro(UINT8 sel);
};
class tms1980_cpu_device : public tms0980_cpu_device
{
public:
tms1980_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
protected:
// overrides
virtual machine_config_constructor device_mconfig_additions() const;
virtual void write_o_output(UINT8 index) { tms1xxx_cpu_device::write_o_output(index); }
virtual UINT8 read_k_input() { return tms1xxx_cpu_device::read_k_input(); }
virtual void op_setr() { tms1xxx_cpu_device::op_setr(); }
virtual void op_rstr() { tms1xxx_cpu_device::op_rstr(); }
virtual void op_tdo() { tms1xxx_cpu_device::op_tdo(); }
};
class tms0270_cpu_device : public tms0980_cpu_device
{
@ -426,7 +443,6 @@ protected:
virtual void write_o_output(UINT8 index) { tms1xxx_cpu_device::write_o_output(index); }
virtual UINT8 read_k_input();
virtual void dynamic_output();
virtual void read_opcode();
virtual void op_setr();
virtual void op_rstr();
@ -466,6 +482,7 @@ extern const device_type TMS1670;
extern const device_type TMS0970;
extern const device_type TMS1990;
extern const device_type TMS0980;
extern const device_type TMS1980;
extern const device_type TMS0270;