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cop400: Removed non-working, incomplete COP440 code. (nw)
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Curt Coder
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commit
af0805d848
@ -425,7 +425,7 @@ end
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if (CPUS["COP400"]~=null or _OPTIONS["with-tools"]) then
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table.insert(disasm_files , MAME_DIR .. "src/devices/cpu/cop400/cop410ds.cpp")
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table.insert(disasm_files , MAME_DIR .. "src/devices/cpu/cop400/cop420ds.cpp")
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table.insert(disasm_files , MAME_DIR .. "src/devices/cpu/cop400/cop440ds.cpp")
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table.insert(disasm_files , MAME_DIR .. "src/devices/cpu/cop400/cop444ds.cpp")
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end
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--------------------------------------------------
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@ -48,12 +48,11 @@
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TODO:
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- opcode support for 2048x8 and 128x4/160x4 memory sizes
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- COP444/445 opcode support for 2048x8 and 128x4 memory size
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- CKO sync input
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- save internal RAM when CKO is RAM power supply pin
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- COP413/COP414/COP415/COP405
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- COP404 opcode map switching, dual timer, microbus enable
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- COP440/COP441/COP442 (new registers: 2-bit N, 4-bit H, 8-bit R; some new opcodes, 2Kx8 ROM, 160x4 RAM)
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*/
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@ -153,12 +152,6 @@ static ADDRESS_MAP_START( data_128b, AS_DATA, 8, cop400_cpu_device )
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AM_RANGE(0x00, 0x7f) AM_RAM
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ADDRESS_MAP_END
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#ifdef UNUSED_CODE
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static ADDRESS_MAP_START( data_160b, AS_DATA, 8, cop400_cpu_device )
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AM_RANGE(0x00, 0x9f) AM_RAM
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ADDRESS_MAP_END
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#endif
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cop400_cpu_device::cop400_cpu_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, uint32_t clock, const char *shortname, const char *source, uint8_t program_addr_bits, uint8_t data_addr_bits, uint8_t featuremask, uint8_t g_mask, uint8_t d_mask, uint8_t in_mask, bool has_counter, bool has_inil, address_map_constructor internal_map_program, address_map_constructor internal_map_data)
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: cpu_device(mconfig, type, name, tag, owner, clock, shortname, source)
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@ -823,25 +816,7 @@ void cop400_cpu_device::serial_tick()
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void cop400_cpu_device::counter_tick()
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{
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if (m_featuremask & (COP444_FEATURE | COP440_FEATURE))
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{
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T++;
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if (T == 0)
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{
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m_skt_latch = 1;
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if (m_idle)
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{
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m_idle = 0;
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m_halt = 0;
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}
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}
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}
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else
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{
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m_skt_latch = 1;
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}
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m_skt_latch = 1;
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}
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void cop400_cpu_device::inil_tick()
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@ -918,15 +893,7 @@ void cop400_cpu_device::device_start()
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if (m_has_counter)
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{
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m_counter_timer = timer_alloc(TIMER_COUNTER);
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if (m_featuremask & (COP444_FEATURE | COP440_FEATURE))
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{
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m_counter_timer->adjust(attotime::zero, 0, attotime::from_ticks(m_cki * 4, clock()));
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}
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else
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{
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m_counter_timer->adjust(attotime::zero, 0, attotime::from_ticks(m_cki * 1024, clock()));
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}
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m_counter_timer->adjust(attotime::zero, 0, attotime::from_ticks(m_cki * 1024, clock()));
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}
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/* allocate IN latch timer */
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@ -942,7 +909,6 @@ void cop400_cpu_device::device_start()
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save_item(NAME(m_pc));
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save_item(NAME(m_prevpc));
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save_item(NAME(m_n));
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save_item(NAME(m_sa));
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save_item(NAME(m_sb));
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save_item(NAME(m_sc));
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@ -950,9 +916,7 @@ void cop400_cpu_device::device_start()
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save_item(NAME(m_b));
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save_item(NAME(m_c));
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save_item(NAME(m_g));
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save_item(NAME(m_h));
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save_item(NAME(m_q));
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save_item(NAME(m_r));
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save_item(NAME(m_en));
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save_item(NAME(m_sio));
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save_item(NAME(m_skl));
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@ -968,7 +932,6 @@ void cop400_cpu_device::device_start()
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state_add(STATE_GENPC, "GENPC", m_pc).mask(0xfff).noshow();
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state_add(STATE_GENPCBASE, "CURPC", m_prevpc).mask(0xfff).noshow();
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state_add(STATE_GENSP, "GENSP", m_n).mask(0x3).noshow();
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state_add(STATE_GENFLAGS, "GENFLAGS", m_flags).mask(0x3).callimport().callexport().noshow().formatstr("%3s");
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state_add(COP400_PC, "PC", m_pc).mask(0xfff);
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@ -982,10 +945,6 @@ void cop400_cpu_device::device_start()
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state_add(COP400_SC, "SC", m_sc).mask(0xfff);
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}
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}
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if (m_featuremask & COP440_FEATURE)
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{
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state_add(COP400_N, "N", m_n).mask(0x3);
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}
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state_add(COP400_A, "A", m_a).mask(0xf);
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state_add(COP400_B, "B", m_b);
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@ -993,34 +952,18 @@ void cop400_cpu_device::device_start()
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state_add(COP400_EN, "EN", m_en).mask(0xf);
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state_add(COP400_G, "G", m_g).mask(0xf);
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if (m_featuremask & COP440_FEATURE)
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{
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state_add(COP400_H, "H", m_h).mask(0xf);
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}
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state_add(COP400_Q, "Q", m_q);
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if (m_featuremask & COP440_FEATURE)
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{
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state_add(COP400_R, "R", m_r);
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}
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state_add(COP400_SIO, "SIO", m_sio).mask(0xf);
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state_add(COP400_SKL, "SKL", m_skl).mask(0x1);
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if (m_featuremask & (COP444_FEATURE | COP440_FEATURE))
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{
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state_add(COP400_T, "T", m_t);
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}
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m_icountptr = &m_icount;
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m_n = 0;
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m_q = 0;
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m_sa = 0;
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m_sb = 0;
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m_sc = 0;
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m_sio = 0;
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m_h = 0;
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m_r = 0;
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m_flags = 0;
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m_il = 0;
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m_in[0] = m_in[1] = m_in[2] = m_in[3] = 0;
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@ -64,18 +64,14 @@ enum
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COP400_SA,
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COP400_SB,
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COP400_SC,
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COP400_N,
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COP400_A,
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COP400_B,
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COP400_C,
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COP400_G,
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COP400_H,
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COP400_Q,
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COP400_R,
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COP400_EN,
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COP400_SIO,
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COP400_SKL,
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COP400_T
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COP400_SKL
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};
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/* input lines */
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@ -194,8 +190,7 @@ protected:
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enum {
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COP410_FEATURE = 0x01,
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COP420_FEATURE = 0x02,
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COP444_FEATURE = 0x04,
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COP440_FEATURE = 0x08
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COP444_FEATURE = 0x04
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};
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enum {
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@ -223,15 +218,12 @@ protected:
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uint8_t m_a; /* 4-bit accumulator */
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uint8_t m_b; /* 5/6/7-bit RAM address register */
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int m_c; /* 1-bit carry register */
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uint8_t m_n; /* 2-bit stack pointer (COP440 only) */
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uint8_t m_en; /* 4-bit enable register */
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uint8_t m_g; /* 4-bit general purpose I/O port */
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uint8_t m_q; /* 8-bit latch for L port */
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uint16_t m_sa, m_sb, m_sc; /* subroutine save registers (not present in COP440) */
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uint16_t m_sa, m_sb, m_sc; /* subroutine save registers */
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uint8_t m_sio; /* 4-bit shift register and counter */
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int m_skl; /* 1-bit latch for SK output */
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uint8_t m_h; /* 4-bit general purpose I/O port (COP440 only) */
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uint8_t m_r; /* 8-bit general purpose I/O port (COP440 only) */
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uint8_t m_flags; // used for I/O only
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/* counter */
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@ -2,9 +2,9 @@
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// copyright-holders:Curt Coder
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/***************************************************************************
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cop440ds.c
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cop444ds.c
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National Semiconductor COP440 Emulator.
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National Semiconductor COP444 Emulator.
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***************************************************************************/
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