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-rw-r--r--src/devices/cpu/tms1000/tms0970.cpp2
-rw-r--r--src/devices/cpu/tms1000/tms0980.cpp4
-rw-r--r--src/devices/cpu/tms1000/tms1000.cpp20
-rw-r--r--src/devices/cpu/tms1000/tms1000.h2
-rw-r--r--src/devices/cpu/tms1000/tms1100.cpp5
-rw-r--r--src/devices/cpu/tms1000/tms1k_base.cpp43
-rw-r--r--src/devices/cpu/tms1000/tms1k_base.h93
-rw-r--r--src/devices/cpu/tms1000/tp0320.cpp2
8 files changed, 110 insertions, 61 deletions
diff --git a/src/devices/cpu/tms1000/tms0970.cpp b/src/devices/cpu/tms1000/tms0970.cpp
index 503f95def3e..2ba98ae38a2 100644
--- a/src/devices/cpu/tms1000/tms0970.cpp
+++ b/src/devices/cpu/tms1000/tms0970.cpp
@@ -110,7 +110,7 @@ void tms0970_cpu_device::device_reset()
if (imask & 0x40 && (imask & 0x20) == 0)
msel = (op & 0xf) | (op >> 1 & 0x10);
- msel = BITSWAP8(msel,7,6,5,0,1,2,3,4); // lines are reversed
+ msel = bitswap<8>(msel,7,6,5,0,1,2,3,4); // lines are reversed
u32 mmask = m_mpla->read(msel);
mmask ^= 0x09fe; // invert active-negative
diff --git a/src/devices/cpu/tms1000/tms0980.cpp b/src/devices/cpu/tms1000/tms0980.cpp
index 622d8ca5be4..4ca31ad4330 100644
--- a/src/devices/cpu/tms1000/tms0980.cpp
+++ b/src/devices/cpu/tms1000/tms0980.cpp
@@ -110,7 +110,7 @@ u32 tms0980_cpu_device::decode_fixed(u16 op)
u32 tms0980_cpu_device::decode_micro(u8 sel)
{
u32 decode = 0;
- sel = BITSWAP8(sel,7,6,0,1,2,3,4,5); // lines are reversed
+ sel = bitswap<8>(sel,7,6,0,1,2,3,4,5); // lines are reversed
u32 mask = m_mpla->read(sel);
mask ^= 0x43fc3; // invert active-negative
@@ -175,7 +175,7 @@ void tms0980_cpu_device::read_opcode()
{
debugger_instruction_hook(this, m_rom_address);
m_opcode = m_program->read_word(m_rom_address) & 0x1ff;
- m_c4 = BITSWAP8(m_opcode,7,6,5,4,0,1,2,3) & 0xf; // opcode operand is bitswapped for most opcodes
+ m_c4 = bitswap<8>(m_opcode,7,6,5,4,0,1,2,3) & 0xf; // opcode operand is bitswapped for most opcodes
m_fixed = m_fixed_decode[m_opcode];
m_micro = read_micro();
diff --git a/src/devices/cpu/tms1000/tms1000.cpp b/src/devices/cpu/tms1000/tms1000.cpp
index 813f1da99f8..ce21213a1d2 100644
--- a/src/devices/cpu/tms1000/tms1000.cpp
+++ b/src/devices/cpu/tms1000/tms1000.cpp
@@ -8,7 +8,7 @@
TODO:
- add TMS1270 (10 O pins, how does that work?)
- add TMS1200C (has L input pins like TMS1600)
- - add HALT input pin for TMS1000C
+ - add TMS1000C-specific mpla
*/
@@ -34,6 +34,13 @@ DEFINE_DEVICE_TYPE(TMS1700, tms1700_cpu_device, "tms1700", "TMS1700") // 28-p
DEFINE_DEVICE_TYPE(TMS1730, tms1730_cpu_device, "tms1730", "TMS1730") // 20-pin DIP, same die as TMS1700, package has less pins: 6 R pins, 5 O pins (output PLA is still 8-bit, O1,O3,O5 unused)
// CMOS versions (3-level stack, HALT pin)
+// - RAM at top-left, ROM at top-right(rotate CCW)
+// - ROM ordering is different:
+// * row select is linear (0-63)
+// * bit select is 7-0 instead of 0-7
+// * page select doesn't flip in the middle
+// - 32-term mpla at bottom-right, different order
+// - 32-term opla at bottom-left, ordered O7-O0(0 or 1), and A8,4,2,1,S
DEFINE_DEVICE_TYPE(TMS1000C, tms1000c_cpu_device, "tms1000c", "TMS1000C") // 28-pin SDIP, 10 R pins
// 2nd source Motorola chips
@@ -122,6 +129,17 @@ MACHINE_CONFIG_MEMBER(tms1000_cpu_device::device_add_mconfig)
MCFG_PLA_FILEFORMAT(BERKELEY)
MACHINE_CONFIG_END
+MACHINE_CONFIG_MEMBER(tms1000c_cpu_device::device_add_mconfig)
+
+ // microinstructions PLA, output PLA
+ //MCFG_PLA_ADD("mpla", 8, 16, 32)
+ MCFG_PLA_ADD("mpla", 8, 16, 30)
+ MCFG_PLA_FILEFORMAT(BERKELEY)
+ MCFG_PLA_ADD("opla", 5, 8, 32)
+ MCFG_PLA_FILEFORMAT(BERKELEY)
+MACHINE_CONFIG_END
+
+
// disasm
util::disasm_interface *tms1000_cpu_device::create_disassembler()
{
diff --git a/src/devices/cpu/tms1000/tms1000.h b/src/devices/cpu/tms1000/tms1000.h
index 9e969dfc356..d5f53c890b6 100644
--- a/src/devices/cpu/tms1000/tms1000.h
+++ b/src/devices/cpu/tms1000/tms1000.h
@@ -69,6 +69,8 @@ public:
protected:
// overrides
+ virtual void device_add_mconfig(machine_config &config) override;
+
virtual void op_br() override { op_br3(); } // 3-level stack
virtual void op_call() override { op_call3(); } // "
virtual void op_retn() override { op_retn3(); } // "
diff --git a/src/devices/cpu/tms1000/tms1100.cpp b/src/devices/cpu/tms1000/tms1100.cpp
index 70c38bc72c1..9f654009bbe 100644
--- a/src/devices/cpu/tms1000/tms1100.cpp
+++ b/src/devices/cpu/tms1000/tms1100.cpp
@@ -4,6 +4,9 @@
TMS1000 family - TMS1100, TMS1170, TMS1300, TMS1370
+ TODO:
+ - add TMS1100C when needed
+
*/
#include "emu.h"
@@ -15,7 +18,7 @@
DEFINE_DEVICE_TYPE(TMS1100, tms1100_cpu_device, "tms1100", "TMS1100") // 28-pin DIP, 11 R pins
DEFINE_DEVICE_TYPE(TMS1170, tms1170_cpu_device, "tms1170", "TMS1170") // high voltage version
DEFINE_DEVICE_TYPE(TMS1300, tms1300_cpu_device, "tms1300", "TMS1300") // 40-pin DIP, 16 R pins
-DEFINE_DEVICE_TYPE(TMS1370, tms1370_cpu_device, "tms1370", "TMS1370") // high voltage version
+DEFINE_DEVICE_TYPE(TMS1370, tms1370_cpu_device, "tms1370", "TMS1370") // high voltage version, also seen in 28-pin package(some O/R pins unavailable)
// internal memory maps
diff --git a/src/devices/cpu/tms1000/tms1k_base.cpp b/src/devices/cpu/tms1000/tms1k_base.cpp
index eb389fc6bc9..eaac999b2ce 100644
--- a/src/devices/cpu/tms1000/tms1k_base.cpp
+++ b/src/devices/cpu/tms1000/tms1k_base.cpp
@@ -5,7 +5,7 @@
TMS1000 family - base/shared
TODO:
- - INIT pin
+ - accurate INIT pin (currently, just use INPUT_LINE_RESET)
The TMS0980 and TMS1000-family MCU cores are very similar. The TMS0980 has a
@@ -144,6 +144,7 @@ void tms1k_base_device::device_start()
m_r = 0;
m_o = 0;
m_o_index = 0;
+ m_halt = false;
m_cki_bus = 0;
m_c4 = 0;
m_p = 0;
@@ -183,6 +184,7 @@ void tms1k_base_device::device_start()
save_item(NAME(m_r));
save_item(NAME(m_o));
save_item(NAME(m_o_index));
+ save_item(NAME(m_halt));
save_item(NAME(m_cki_bus));
save_item(NAME(m_c4));
save_item(NAME(m_p));
@@ -224,6 +226,14 @@ void tms1k_base_device::device_start()
m_icountptr = &m_icount;
}
+device_memory_interface::space_config_vector tms1k_base_device::memory_space_config() const
+{
+ return space_config_vector {
+ std::make_pair(AS_PROGRAM, &m_program_config),
+ std::make_pair(AS_DATA, &m_data_config)
+ };
+}
+
//-------------------------------------------------
@@ -259,13 +269,6 @@ void tms1k_base_device::device_reset()
m_power_off(0);
}
-device_memory_interface::space_config_vector tms1k_base_device::memory_space_config() const
-{
- return space_config_vector {
- std::make_pair(AS_PROGRAM, &m_program_config),
- std::make_pair(AS_DATA, &m_data_config)
- };
-}
//-------------------------------------------------
@@ -291,7 +294,7 @@ void tms1k_base_device::read_opcode()
{
debugger_instruction_hook(this, m_rom_address);
m_opcode = m_program->read_byte(m_rom_address);
- m_c4 = BITSWAP8(m_opcode,7,6,5,4,0,1,2,3) & 0xf; // opcode operand is bitswapped for most opcodes
+ m_c4 = bitswap<8>(m_opcode,7,6,5,4,0,1,2,3) & 0xf; // opcode operand is bitswapped for most opcodes
m_fixed = m_fixed_decode[m_opcode];
m_micro = m_micro_decode[m_opcode];
@@ -305,6 +308,15 @@ void tms1k_base_device::read_opcode()
// i/o handling
//-------------------------------------------------
+void tms1k_base_device::execute_set_input(int line, int state)
+{
+ if (line != TMS1XXX_INPUT_LINE_HALT)
+ return;
+
+ // HALT pin (CMOS only)
+ m_halt = bool(state);
+}
+
void tms1k_base_device::write_o_output(u8 index)
{
// a hardcoded table is supported if the output pla is unknown
@@ -597,9 +609,17 @@ void tms1k_base_device::op_sbl()
void tms1k_base_device::execute_run()
{
- do
+ while (m_icount > 0)
{
m_icount--;
+
+ if (m_halt)
+ {
+ // not running (output pins remain unchanged)
+ m_icount = 0;
+ return;
+ }
+
switch (m_subcycle)
{
case 0:
@@ -722,6 +742,7 @@ void tms1k_base_device::execute_run()
// execute: br/call 1/2
break;
}
+
m_subcycle = (m_subcycle + 1) % 6;
- } while (m_icount > 0);
+ }
}
diff --git a/src/devices/cpu/tms1000/tms1k_base.h b/src/devices/cpu/tms1000/tms1k_base.h
index 7ddff2bb68f..b5e75ec77d2 100644
--- a/src/devices/cpu/tms1000/tms1k_base.h
+++ b/src/devices/cpu/tms1000/tms1k_base.h
@@ -38,6 +38,9 @@
#define MCFG_TMS1XXX_POWER_OFF_CB(_devcb) \
devcb = &tms1k_base_device::set_power_off_callback(*device, DEVCB_##_devcb);
+// HALT input pin on CMOS chips (use set_input_line)
+#define TMS1XXX_INPUT_LINE_HALT 0
+
// pinout reference
@@ -105,6 +108,7 @@ protected:
virtual u32 execute_min_cycles() const override { return 1; }
virtual u32 execute_max_cycles() const override { return 6; }
virtual u32 execute_input_lines() const override { return 1; }
+ virtual void execute_set_input(int line, int state) override;
virtual void execute_run() override;
// device_memory_interface overrides
@@ -214,50 +218,51 @@ protected:
optional_device<pla_device> m_opla;
optional_device<pla_device> m_spla;
- u8 m_pc; // 6 or 7-bit program counter
- u32 m_sr; // 6 or 7-bit subroutine return register(s)
- u8 m_pa; // 4-bit page address register
- u8 m_pb; // 4-bit page buffer register
- u16 m_ps; // 4-bit page subroutine register(s)
- u8 m_a; // 4-bit accumulator
- u8 m_x; // 2,3,or 4-bit RAM X register
- u8 m_y; // 4-bit RAM Y register
- u8 m_ca; // chapter address register
- u8 m_cb; // chapter buffer register
- u16 m_cs; // chapter subroutine register(s)
- u16 m_r;
- u16 m_o;
- u8 m_cki_bus;
- u8 m_c4;
- u8 m_p; // 4-bit adder p(lus)-input
- u8 m_n; // 4-bit adder n(egative)-input
- u8 m_adder_out; // adder result
- u8 m_carry_in; // adder carry-in bit
- u8 m_carry_out; // adder carry-out bit
- u8 m_status;
- u8 m_status_latch;
- u8 m_eac; // end around carry bit
- u8 m_clatch; // call latch bit(s)
- u8 m_add; // add latch bit
- u8 m_bl; // branch latch bit
-
- u8 m_ram_in;
- u8 m_dam_in;
- int m_ram_out; // signed!
- u8 m_ram_address;
- u16 m_rom_address;
- u16 m_opcode;
- u32 m_fixed;
- u32 m_micro;
- int m_subcycle;
- int m_icount;
- u8 m_o_index;
-
- u8 m_o_pins; // how many O pins
- u8 m_r_pins; // how many R pins
- u8 m_pc_bits; // how many program counter bits
- u8 m_byte_bits; // how many bits per 'byte'
- u8 m_x_bits; // how many X register bits
+ u8 m_pc; // 6 or 7-bit program counter
+ u32 m_sr; // 6 or 7-bit subroutine return register(s)
+ u8 m_pa; // 4-bit page address register
+ u8 m_pb; // 4-bit page buffer register
+ u16 m_ps; // 4-bit page subroutine register(s)
+ u8 m_a; // 4-bit accumulator
+ u8 m_x; // 2,3,or 4-bit RAM X register
+ u8 m_y; // 4-bit RAM Y register
+ u8 m_ca; // chapter address register
+ u8 m_cb; // chapter buffer register
+ u16 m_cs; // chapter subroutine register(s)
+ u16 m_r;
+ u16 m_o;
+ u8 m_cki_bus;
+ u8 m_c4;
+ u8 m_p; // 4-bit adder p(lus)-input
+ u8 m_n; // 4-bit adder n(egative)-input
+ u8 m_adder_out; // adder result
+ u8 m_carry_in; // adder carry-in bit
+ u8 m_carry_out; // adder carry-out bit
+ u8 m_status;
+ u8 m_status_latch;
+ u8 m_eac; // end around carry bit
+ u8 m_clatch; // call latch bit(s)
+ u8 m_add; // add latch bit
+ u8 m_bl; // branch latch bit
+
+ u8 m_ram_in;
+ u8 m_dam_in;
+ int m_ram_out; // signed!
+ u8 m_ram_address;
+ u16 m_rom_address;
+ u16 m_opcode;
+ u32 m_fixed;
+ u32 m_micro;
+ int m_subcycle;
+ int m_icount;
+ u8 m_o_index;
+ bool m_halt; // halt pin state
+
+ u8 m_o_pins; // how many O pins
+ u8 m_r_pins; // how many R pins
+ u8 m_pc_bits; // how many program counter bits
+ u8 m_byte_bits; // how many bits per 'byte'
+ u8 m_x_bits; // how many X register bits
address_space *m_program;
address_space *m_data;
diff --git a/src/devices/cpu/tms1000/tp0320.cpp b/src/devices/cpu/tms1000/tp0320.cpp
index 64ebdb3365a..8f10c9f2b62 100644
--- a/src/devices/cpu/tms1000/tp0320.cpp
+++ b/src/devices/cpu/tms1000/tp0320.cpp
@@ -67,7 +67,7 @@ u32 tp0320_cpu_device::decode_micro(u8 sel)
{
u32 decode = 0;
- sel = BITSWAP8(sel,7,6,0,1,2,3,4,5); // lines are reversed
+ sel = bitswap<8>(sel,7,6,0,1,2,3,4,5); // lines are reversed
u32 mask = m_mpla->read(sel);
mask ^= 0x0bff0; // invert active-negative