diff options
Diffstat (limited to 'src/devices/cpu/tms1000/tms1000.cpp')
-rw-r--r-- | src/devices/cpu/tms1000/tms1000.cpp | 40 |
1 files changed, 34 insertions, 6 deletions
diff --git a/src/devices/cpu/tms1000/tms1000.cpp b/src/devices/cpu/tms1000/tms1000.cpp index 55ac2a01d8c..ce21213a1d2 100644 --- a/src/devices/cpu/tms1000/tms1000.cpp +++ b/src/devices/cpu/tms1000/tms1000.cpp @@ -2,17 +2,19 @@ // copyright-holders:hap /* - TMS1000 family - TMS1000, TMS1070, TMS1040, TMS1200, TMS1700, TMS1730, + TMS1000 family - TMS1000, TMS1000C, TMS1070, TMS1040, TMS1200, TMS1700, TMS1730, and second source Motorola MC141000, MC141200. TODO: - add TMS1270 (10 O pins, how does that work?) - - add TMS1000C, TMS1200C (CMOS, and 3-level stack) + - add TMS1200C (has L input pins like TMS1600) + - add TMS1000C-specific mpla */ #include "emu.h" #include "tms1000.h" +#include "tms1k_dasm.h" #include "debugger.h" // TMS1000 @@ -31,6 +33,17 @@ DEFINE_DEVICE_TYPE(TMS1200, tms1200_cpu_device, "tms1200", "TMS1200") // 40-p DEFINE_DEVICE_TYPE(TMS1700, tms1700_cpu_device, "tms1700", "TMS1700") // 28-pin DIP, RAM/ROM size halved, 9 R pins 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 DEFINE_DEVICE_TYPE(MC141000, mc141000_cpu_device, "mc141000", "MC141000") // CMOS, pin-compatible with TMS1000(reverse polarity) DEFINE_DEVICE_TYPE(MC141200, mc141200_cpu_device, "mc141200", "MC141200") // CMOS, 40-pin DIP, 16 R pins @@ -90,6 +103,11 @@ tms1730_cpu_device::tms1730_cpu_device(const machine_config &mconfig, const char { } +tms1000c_cpu_device::tms1000c_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) + : tms1000_cpu_device(mconfig, TMS1000C, tag, owner, clock, 8, 10, 6, 8, 2, 10, ADDRESS_MAP_NAME(program_10bit_8), 6, ADDRESS_MAP_NAME(data_64x4)) +{ +} + mc141000_cpu_device::mc141000_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) : tms1000_cpu_device(mconfig, MC141000, tag, owner, clock, 8, 11, 6, 8, 2, 10, ADDRESS_MAP_NAME(program_10bit_8), 6, ADDRESS_MAP_NAME(data_64x4)) { @@ -102,7 +120,7 @@ mc141200_cpu_device::mc141200_cpu_device(const machine_config &mconfig, const ch // machine configs - MACHINE_CONFIG_MEMBER(tms1000_cpu_device::device_add_mconfig) +MACHINE_CONFIG_MEMBER(tms1000_cpu_device::device_add_mconfig) // microinstructions PLA, output PLA MCFG_PLA_ADD("mpla", 8, 16, 30) @@ -111,11 +129,21 @@ mc141200_cpu_device::mc141200_cpu_device(const machine_config &mconfig, const ch 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 -offs_t tms1000_cpu_device::disasm_disassemble(std::ostream &stream, offs_t pc, const u8 *oprom, const u8 *opram, u32 options) +util::disasm_interface *tms1000_cpu_device::create_disassembler() { - extern CPU_DISASSEMBLE(tms1000); - return CPU_DISASSEMBLE_NAME(tms1000)(this, stream, pc, oprom, opram, options); + return new tms1000_disassembler; } |