diff options
Diffstat (limited to 'src/devices/cpu/mcs51/axc51-core.cpp')
-rw-r--r-- | src/devices/cpu/mcs51/axc51-core.cpp | 45 |
1 files changed, 39 insertions, 6 deletions
diff --git a/src/devices/cpu/mcs51/axc51-core.cpp b/src/devices/cpu/mcs51/axc51-core.cpp index ddf22f27880..7dc8272d29e 100644 --- a/src/devices/cpu/mcs51/axc51-core.cpp +++ b/src/devices/cpu/mcs51/axc51-core.cpp @@ -8,13 +8,16 @@ AX208 SoC - - Notes: + AXC51CORE: + somes sources indicate that the extended opcode encoding may change + on some CPU models despite all being 'AXC51CORE' however we lack solid + information on this at present. + AX208: - The CPU has a bootloader that sets a few things up + copies data to RAM - from the Flash meomry. This will need to be simulated. + The CPU has 0x2000 bytes of internal ROM mapped at 0x8000-0x9fff providing + bootcode, operating kernel and many standard library functions *****************************************************************************/ @@ -23,14 +26,44 @@ #include "axc51-core.h" #include "axc51-core_dasm.h" +DEFINE_DEVICE_TYPE(AXC51CORE, axc51core_cpu_device, "axc51core", "AppoTech AXC51-CORE") DEFINE_DEVICE_TYPE(AX208, ax208_cpu_device, "ax208", "AppoTech AX208 (AXC51-CORE)") +// AXC51CORE (base device) + +axc51core_cpu_device::axc51core_cpu_device(const machine_config& mconfig, device_type type, const char* tag, device_t* owner, uint32_t clock, int program_width, int data_width, uint8_t features) + : mcs51_cpu_device(mconfig, type, tag, owner, clock, program_width, data_width, features) +{ +} + +axc51core_cpu_device::axc51core_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) + : axc51core_cpu_device(mconfig, AXC51CORE, tag, owner, clock, 0, 7) +{ +} + +std::unique_ptr<util::disasm_interface> axc51core_cpu_device::create_disassembler() +{ + return std::make_unique<axc51core_disassembler>(); +} + +// AX208 (specific CPU) + ax208_cpu_device::ax208_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) - : mcs51_cpu_device(mconfig, AX208, tag, owner, clock, 0, 7) + : axc51core_cpu_device(mconfig, AX208, tag, owner, clock, 0, 7) { } std::unique_ptr<util::disasm_interface> ax208_cpu_device::create_disassembler() { - return std::make_unique<axc51core_disassembler>(); + return std::make_unique<ax208_disassembler>(); +} + +ROM_START( ax208 ) + ROM_REGION( 0x2000, "rom", 0 ) + ROM_LOAD("ax208.rom", 0x0000, 0x2000, NO_DUMP ) +ROM_END + +const tiny_rom_entry *ax208_cpu_device::device_rom_region() const +{ + return ROM_NAME( ax208 ); } |