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author Sterophonick <34801996+Sterophonick@users.noreply.github.com>2020-01-21 11:33:33 -0700
committer R. Belmont <rb6502@users.noreply.github.com>2020-01-21 13:33:33 -0500
commit0ff7e2ea0dec88084deefb081e62e13f8e1981b7 (patch)
tree76a006e4dc0843b0d6b31ce6f487f25d2ef548ae
parent317cdaf224a1f3fbaaf80636fd03254df97a72c0 (diff)
new NOT_WORKING machine (#5811)
* minor spelling fix * new NOT_WORKING machine Gigatron TTL Microcomputer [Sterophonick] also add a skeleton cpu core * Revert Minor Spelling Fix * Make some fixes thanks cuavas * Fix resolution * gigatron: update cpu device name * update copyright * fix part of gigatron disassembler * Set screen refresh rate * found a set of all the ROM files, update main ROM name * Fix cpu.lua * Whoops * Update gigatron.cpp * gigatron: clear execute_set_input * Update gigatron.h * Update gigatrondasm.cpp * Update gigatrondasm.h * clean up but doesnt compile ffs
-rw-r--r--scripts/src/cpu.lua17
-rw-r--r--src/devices/cpu/gigatron/gigatron.cpp129
-rw-r--r--src/devices/cpu/gigatron/gigatron.h62
-rw-r--r--src/devices/cpu/gigatron/gigatrondasm.cpp17
-rw-r--r--src/devices/cpu/gigatron/gigatrondasm.h24
-rw-r--r--src/mame/drivers/gigatron.cpp50
-rw-r--r--src/mame/mame.lst3
-rw-r--r--src/mame/mess.flt1
8 files changed, 303 insertions, 0 deletions
diff --git a/scripts/src/cpu.lua b/scripts/src/cpu.lua
index b030e4958bd..d67ce4c706c 100644
--- a/scripts/src/cpu.lua
+++ b/scripts/src/cpu.lua
@@ -2982,6 +2982,22 @@ if (CPUS["CR16B"]~=null or _OPTIONS["with-tools"]) then
end
--------------------------------------------------
+-- Gigatron
+--@src/devices/cpu/gigatron.h,CPUS["GTRON"] = true
+--------------------------------------------------
+
+if (CPUS["GTRON"]~=null) then
+ files {
+ MAME_DIR .. "src/devices/cpu/gigatron/gigatron.cpp",
+ MAME_DIR .. "src/devices/cpu/gigatron/gigatron.h",
+ }
+end
+
+if (CPUS["GTRON"]~=null or _OPTIONS["with-tools"]) then
+ table.insert(disasm_files , MAME_DIR .. "src/devices/cpu/gigatron/gigatrondasm.cpp")
+ table.insert(disasm_files , MAME_DIR .. "src/devices/cpu/gigatron/gigatrondasm.h")
+end
+
-- Motorola DSP56000
--@src/devices/cpu/dsp56000/dsp56000.h,CPUS["DSP56000"] = true
--------------------------------------------------
@@ -3081,4 +3097,5 @@ end
if (CPUS["RX01"]~=null or _OPTIONS["with-tools"]) then
table.insert(disasm_files , MAME_DIR .. "src/devices/cpu/rx01/rx01dasm.cpp")
table.insert(disasm_files , MAME_DIR .. "src/devices/cpu/rx01/rx01dasm.h")
+
end
diff --git a/src/devices/cpu/gigatron/gigatron.cpp b/src/devices/cpu/gigatron/gigatron.cpp
new file mode 100644
index 00000000000..4eb9e3c9858
--- /dev/null
+++ b/src/devices/cpu/gigatron/gigatron.cpp
@@ -0,0 +1,129 @@
+// license:BSD-3-Clause
+// copyright-holders:Sterophonick
+/*****************************************************************************
+ *
+ * Skeleton device for Gigatron CPU Core
+ *
+ *****************************************************************************/
+
+#include "emu.h"
+#include "gigatron.h"
+#include "debugger.h"
+
+
+DEFINE_DEVICE_TYPE(GTRON, gigatron_cpu_device, "gigatron", "GTRON")
+
+
+/* FLAGS */
+#if 0
+#define S 0x80
+#define Z 0x40
+#define OV 0x20
+#define C 0x10
+#endif
+
+
+#define gigatron_readop(A) m_program->read_dword(A)
+#define gigatron_readmem16(A) m_data->read_dword(A)
+#define gigatron_writemem16(A,B) m_data->write_dword((A),B)
+
+
+/***********************************
+ * illegal opcodes
+ ***********************************/
+void gigatron_cpu_device::gigatron_illegal()
+{
+ logerror("gigatron illegal opcode at 0x%04x\n", m_pc);
+ m_icount -= 1;
+}
+
+/* Execute cycles */
+void gigatron_cpu_device::execute_run()
+{
+ uint16_t opcode;
+
+ do
+ {
+ debugger_instruction_hook(this, m_pc);
+
+ opcode = gigatron_readop(m_pc);
+ m_pc++;
+
+ switch( opcode )
+ {
+ default:
+ gigatron_illegal();
+ break;
+ }
+
+ } while( m_icount > 0 );
+}
+
+
+void gigatron_cpu_device::device_start()
+{
+ m_program = &space(AS_PROGRAM);
+ m_data = &space(AS_DATA);
+
+ save_item(NAME(m_pc));
+ save_item(NAME(m_flags));
+
+ // Register state for debugger
+ state_add( GTRON_R0, "PC", m_pc ).formatstr("%02X");
+ state_add( STATE_GENPC, "GENPC", m_r[7] ).noshow();
+ state_add( STATE_GENPCBASE, "CURPC", m_r[7] ).noshow();
+ state_add( STATE_GENFLAGS, "GENFLAGS", m_flags ).noshow();
+
+ m_icountptr = &m_icount;
+}
+
+#if 0
+void gigatron_cpu_device::execute_set_input(int irqline, int state)
+{
+ switch(irqline)
+ {
+ case GTRON_INT_INTRM: // level-sensitive
+ m_intrm_pending = ((ASSERT_LINE == state) || (HOLD_LINE == state));
+ m_intrm_state = (ASSERT_LINE == state);
+ break;
+ case GTRON_RESET: // edge-sensitive
+ if (CLEAR_LINE != state)
+ m_reset_pending = 1;
+ m_reset_state = (ASSERT_LINE == state);
+ break;
+ case GTRON_INT_INTR: // edge-sensitive
+ if (CLEAR_LINE != state)
+ m_intr_pending = 1;
+ m_intr_state = (ASSERT_LINE == state);
+ break;
+ }
+}
+#endif
+
+gigatron_cpu_device::gigatron_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+ : cpu_device(mconfig, GTRON, tag, owner, clock)
+ , m_program_config("program", ENDIANNESS_BIG, 8, 32, -1)
+ , m_data_config("data", ENDIANNESS_BIG, 8, 32, 0)
+{
+}
+
+
+void gigatron_cpu_device::state_string_export(const device_state_entry &entry, std::string &str) const
+{
+ switch (entry.index())
+ {
+ case STATE_GENFLAGS:
+ str = util::string_format("%c%c%c%c",
+ m_flags & 0x80 ? 'S':'.',
+ m_flags & 0x40 ? 'Z':'.',
+ m_flags & 0x20 ? 'V':'.',
+ m_flags & 0x10 ? 'C':'.');
+ break;
+ }
+}
+
+
+offs_t gigatron_cpu_device::disassemble(char *buffer, offs_t pc, const uint32_t *oprom, const uint32_t *opram, uint32_t options)
+{
+ return CPU_DISASSEMBLE_NAME(gigatron)(this, buffer, pc, opcodes, params, options);
+}
diff --git a/src/devices/cpu/gigatron/gigatron.h b/src/devices/cpu/gigatron/gigatron.h
new file mode 100644
index 00000000000..4f4b73da26c
--- /dev/null
+++ b/src/devices/cpu/gigatron/gigatron.h
@@ -0,0 +1,62 @@
+// license:BSD-3-Clause
+// copyright-holders:Sterophonick
+/*****************************************************************************
+ *
+ * Skeleton Device for Gigatron CPU Core
+ *
+ *****************************************************************************/
+
+#ifndef MAME_CPU_GTRON_H
+#define MAME_CPU_GTRON_H
+
+#pragma once
+
+enum
+{
+ GTRON_R0=1, GTRON_R1, GTRON_R2, GTRON_R3,
+ GTRON_R4, GTRON_R5, GTRON_R6, GTRON_R7
+};
+
+
+class gigatron_cpu_device : public cpu_device
+{
+public:
+ // construction/destruction
+ gigatron_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+protected:
+ // device-level overrides
+ virtual void device_start() override;
+ virtual void device_reset() override;
+
+ // device_execute_interface overrides
+ virtual uint32_t execute_min_cycles() const noexcept override { return 1; }
+ virtual uint32_t execute_max_cycles() const noexcept override { return 7; }
+ virtual uint32_t execute_input_lines() const noexcept override { return 0; }
+ virtual void execute_run() override;
+ virtual void execute_set_input(int inputnum, int state) override;
+
+ // device_state_interface overrides
+ virtual void state_string_export(const device_state_entry &entry, std::string &str) const override;
+
+
+private:
+ address_space_config m_program_config;
+
+ uint8_t m_pc; /* registers */
+ uint8_t m_flags; /* flags */
+ address_space *m_program;
+ address_space *m_data;
+ int m_icount;
+
+ void gigatron_illegal();
+
+};
+
+
+DECLARE_DEVICE_TYPE(GTRON, gigatron_cpu_device)
+
+
+
+#endif // MAME_CPU_GTRON_H
+
diff --git a/src/devices/cpu/gigatron/gigatrondasm.cpp b/src/devices/cpu/gigatron/gigatrondasm.cpp
new file mode 100644
index 00000000000..100f8d7e984
--- /dev/null
+++ b/src/devices/cpu/gigatron/gigatrondasm.cpp
@@ -0,0 +1,17 @@
+// license:BSD-3-Clause
+// copyright-holders:Sterophonick
+
+// Gigatron Disassembler
+
+#include "emu.h"
+#include "gigatrondasm.h"
+
+u32 gigatron_disassembler::opcode_alignment() const
+{
+ return 0;
+}
+
+offs_t gigatron_disassembler::disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer &params)
+{
+ return 0;
+}
diff --git a/src/devices/cpu/gigatron/gigatrondasm.h b/src/devices/cpu/gigatron/gigatrondasm.h
new file mode 100644
index 00000000000..a1e590c0be8
--- /dev/null
+++ b/src/devices/cpu/gigatron/gigatrondasm.h
@@ -0,0 +1,24 @@
+// license:BSD-3-Clause
+// copyright-holders:Sterophonick
+
+// Gigatron disassembler
+
+#ifndef MAME_CPU_GIGATRON_GIGATRONDASM_H
+#define MAME_CPU_GIGATRON_GIGATRONDASM_H
+
+#pragma once
+
+class gigatron_disassembler : public util::disasm_interface
+{
+public:
+ gigatron_disassembler() = default;
+ virtual ~gigatron_disassembler() = default;
+
+ virtual u32 opcode_alignment() const override;
+ virtual offs_t disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer &params) override;
+
+private:
+};
+
+#endif
+
diff --git a/src/mame/drivers/gigatron.cpp b/src/mame/drivers/gigatron.cpp
new file mode 100644
index 00000000000..c14df7cbafd
--- /dev/null
+++ b/src/mame/drivers/gigatron.cpp
@@ -0,0 +1,50 @@
+// license:BSD-3-Clause
+// copyright-holders:Sterophonick
+/***************************************************************************
+
+ Skeleton driver for Gigatron TTL Microcomputer
+ Driver by Sterophonick
+
+***************************************************************************/
+
+#include "emu.h"
+#include "cpu/m6502/m6502.h"
+//#include "cpu/gigatron/gigatron.h"
+#include "machine/nvram.h"
+#include "speaker.h"
+
+#define MAIN_CLOCK 6250000
+
+class gigatron_state : public driver_device
+{
+public:
+ gigatron_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag)
+ , m_maincpu(*this, "maincpu")
+ {
+ }
+
+ void gigatron(machine_config &config);
+
+private:
+
+ required_device<cpu_device> m_maincpu;
+};
+
+static INPUT_PORTS_START(gigatron)
+INPUT_PORTS_END
+
+void gigatron_state::gigatron(machine_config &config)
+{
+ M6502(config, m_maincpu, MAIN_CLOCK); // actually its own custom cpu but i cant get it to work
+ //GTRON(config, m_maincpu, MAIN_CLOCK);
+ SPEAKER(config, "mono").front_center();
+
+}
+
+ROM_START( gigatron )
+ ROM_REGION( 0x00000, "maincpu", 0 )
+ ROM_LOAD( "gigatron.rom", 0x0000, 0x20000, CRC(78995109) SHA1(2395fc48e64099836111f5aeca39ddbf4650ea4e) )
+ROM_END
+
+GAME(199?, gigatron, 0, gigatron, gigatron, gigatron_state, empty_init, ROT0, "Marcel van Kervinck", "Gigatron TTL Microcomputer", MACHINE_IS_SKELETON_MECHANICAL) \ No newline at end of file
diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index 9544e385a91..4ebeb7f1368 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -14620,6 +14620,9 @@ touryuu // (c) 200? Yuki Enterprise
giclasex
giclassvr
+@source:gigatron.cpp
+gigatron // (c) 2018 Marcel van Kervinck
+
@source:gijoe.cpp
gijoe // GX069 (c) 1991 (World)
gijoea // GX069 (c) 1991 (Asia)
diff --git a/src/mame/mess.flt b/src/mame/mess.flt
index 6e93f240a99..7d393b43b05 100644
--- a/src/mame/mess.flt
+++ b/src/mame/mess.flt
@@ -315,6 +315,7 @@ geneve.cpp
geniusiq.cpp
geniusjr.cpp
genpc.cpp
+gigatron.cpp
gimix.cpp
gkidabc.cpp
gizmondo.cpp