mirror of
https://github.com/holub/mame
synced 2025-10-05 08:41:31 +03:00
added lcd bs pin
This commit is contained in:
hap
parent
cac42537c5
commit
cf435ac3c8
@ -13,6 +13,7 @@
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TODO:
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- proper support for LFSR program counter in debugger
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- callback for lcd screen as MAME bitmap (when needed)
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- LCD bs pin blink mode via Y register
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*/
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@ -46,6 +47,7 @@ void sm510_base_device::device_start()
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m_write_sega.resolve_safe();
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m_write_segb.resolve_safe();
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m_write_segbs.resolve_safe();
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m_write_segc.resolve_safe();
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// zerofill
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@ -64,6 +66,8 @@ void sm510_base_device::device_start()
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m_div = 0;
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m_1s = false;
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m_k_active = false;
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m_l = 0;
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m_y = 0;
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m_bp = false;
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m_bc = false;
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m_halt = false;
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@ -84,6 +88,8 @@ void sm510_base_device::device_start()
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save_item(NAME(m_div));
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save_item(NAME(m_1s));
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save_item(NAME(m_k_active));
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save_item(NAME(m_l));
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save_item(NAME(m_y));
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save_item(NAME(m_bp));
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save_item(NAME(m_bc));
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save_item(NAME(m_halt));
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@ -119,12 +125,12 @@ void sm510_base_device::device_reset()
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do_branch(3, 7, 0);
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m_prev_pc = m_pc;
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// lcd is on (Bp on, BC off)
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// lcd is on (Bp on, BC off, bs(y) off)
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m_bp = true;
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m_bc = false;
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m_y = 0;
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m_write_r(0, 0, 0xff);
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// y=0(bs), r=0
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}
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@ -148,12 +154,17 @@ inline UINT16 sm510_base_device::get_lcd_row(int column, UINT8* ram)
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TIMER_CALLBACK_MEMBER(sm510_base_device::lcd_timer_cb)
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{
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// 4 columns, 16 segments per row
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// 4 columns
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for (int h = 0; h < 4; h++)
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{
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// 16 segments per row from upper part of RAM
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m_write_sega(h | SM510_PORT_SEGA, get_lcd_row(h, m_lcd_ram_a), 0xffff);
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m_write_segb(h | SM510_PORT_SEGB, get_lcd_row(h, m_lcd_ram_b), 0xffff);
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m_write_segc(h | SM510_PORT_SEGC, get_lcd_row(h, m_lcd_ram_c), 0xffff);
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// bs output from L and Y regs
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UINT8 bs = m_l >> h & 1;
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m_write_segbs(h | SM510_PORT_SEGBS, (m_bc || !m_bp) ? 0 : bs, 0xffff);
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}
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// schedule next timeout
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@ -172,19 +183,21 @@ void sm510_base_device::init_lcd_driver()
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// interrupt/timer
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//-------------------------------------------------
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void sm510_base_device::wake_me_up()
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bool sm510_base_device::wake_me_up()
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{
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// in halt mode, wake up after 1S signal or K input
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if (m_halt)
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if (m_k_active || m_1s)
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{
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// note: official doc warns that Bl/Bm and the stack are undefined
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// after waking up, but we leave it unchanged
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m_halt = false;
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do_branch(1, 0, 0);
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standard_irq_callback(0);
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// note: official doc warns that Bl/Bm and the stack are undefined
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// after waking up, but we leave it unchanged
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return true;
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}
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else
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return false;
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}
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void sm510_base_device::execute_set_input(int line, int state)
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@ -204,10 +217,7 @@ TIMER_CALLBACK_MEMBER(sm510_base_device::div_timer_cb)
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// 1S signal on overflow(falling edge of f1)
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if (m_div == 0)
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{
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m_1s = true;
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wake_me_up();
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}
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// schedule next timeout
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m_div_timer->adjust(attotime::from_ticks(0x800, unscaled_clock()));
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@ -243,17 +253,13 @@ void sm510_base_device::execute_run()
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{
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while (m_icount > 0)
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{
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if (m_halt)
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m_icount--;
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if (m_halt && !wake_me_up())
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{
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// wake up from K input (note: 1S signal is handled above)
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if (m_k_active)
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wake_me_up();
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else
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{
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// got nothing to do
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m_icount = 0;
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return;
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}
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// got nothing to do
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m_icount = 0;
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return;
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}
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// remember previous state
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@ -262,7 +268,6 @@ void sm510_base_device::execute_run()
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// fetch next opcode
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debugger_instruction_hook(this, m_pc);
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m_icount--;
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m_op = m_program->read_byte(m_pc);
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increment_pc();
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get_opcode_param();
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@ -45,11 +45,16 @@
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#define MCFG_SM510_WRITE_SEGC_CB(_devcb) \
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sm510_base_device::set_write_segc_callback(*device, DEVCB_##_devcb);
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// LCD bs output: same as above, but only data d0 used
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#define MCFG_SM510_WRITE_SEGBS_CB(_devcb) \
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sm510_base_device::set_write_segbs_callback(*device, DEVCB_##_devcb);
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enum
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{
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SM510_PORT_SEGA = 0,
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SM510_PORT_SEGB = 4,
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SM510_PORT_SEGC = 8
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SM510_PORT_SEGA = 0x00,
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SM510_PORT_SEGB = 0x04,
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SM510_PORT_SEGBS = 0x08,
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SM510_PORT_SEGC = 0x0c
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};
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@ -71,7 +76,7 @@ public:
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, m_datawidth(datawidth)
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, m_stack_levels(stack_levels)
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, m_lcd_ram_a(*this, "lcd_ram_a"), m_lcd_ram_b(*this, "lcd_ram_b"), m_lcd_ram_c(*this, "lcd_ram_c")
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, m_write_sega(*this), m_write_segb(*this), m_write_segc(*this)
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, m_write_sega(*this), m_write_segb(*this), m_write_segc(*this), m_write_segbs(*this)
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, m_read_k(*this)
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, m_read_ba(*this), m_read_b(*this)
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, m_write_s(*this)
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@ -88,6 +93,7 @@ public:
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template<class _Object> static devcb_base &set_write_sega_callback(device_t &device, _Object object) { return downcast<sm510_base_device &>(device).m_write_sega.set_callback(object); }
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template<class _Object> static devcb_base &set_write_segb_callback(device_t &device, _Object object) { return downcast<sm510_base_device &>(device).m_write_segb.set_callback(object); }
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template<class _Object> static devcb_base &set_write_segc_callback(device_t &device, _Object object) { return downcast<sm510_base_device &>(device).m_write_segc.set_callback(object); }
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template<class _Object> static devcb_base &set_write_segbs_callback(device_t &device, _Object object) { return downcast<sm510_base_device &>(device).m_write_segbs.set_callback(object); }
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protected:
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// device-level overrides
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@ -139,8 +145,10 @@ protected:
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// lcd driver
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optional_shared_ptr<UINT8> m_lcd_ram_a, m_lcd_ram_b, m_lcd_ram_c;
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devcb_write16 m_write_sega, m_write_segb, m_write_segc;
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devcb_write16 m_write_sega, m_write_segb, m_write_segc, m_write_segbs;
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emu_timer *m_lcd_timer;
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UINT8 m_l;
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UINT8 m_y;
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bool m_bp;
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bool m_bc;
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@ -154,7 +162,7 @@ protected:
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bool m_1s;
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TIMER_CALLBACK_MEMBER(div_timer_cb);
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void wake_me_up();
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bool wake_me_up();
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virtual void reset_divider();
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void init_divider();
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@ -224,13 +224,13 @@ void sm510_base_device::op_atbp()
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void sm510_base_device::op_atl()
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{
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// ATL: output ACC to L
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op_illegal();
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m_l = m_acc;
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}
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void sm510_base_device::op_atfc()
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{
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// ATFC: output ACC to Y
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op_illegal();
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m_y = m_acc;
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}
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void sm510_base_device::op_atr()
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@ -35,7 +35,7 @@ public:
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// misc common
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UINT16 m_inp_mux; // multiplexed inputs mask
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int m_inp_lines; // number of input mux columns
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UINT8 m_lcd_output_cache[3*4*0x10];
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UINT8 m_lcd_output_cache[0x100];
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UINT8 read_inputs(int columns);
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@ -89,7 +89,7 @@ WRITE16_MEMBER(hh_sm510_state::lcd_segment_w)
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if (state != m_lcd_output_cache[index])
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{
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// output to x.y, where x = row a/b/c*4 + H1-4, y = seg1-16
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// output to x.y, where x = row a/b/bs/c*4 + H1-4, y = seg1-16
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char buf[0x10];
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sprintf(buf, "%d.%d", offset, seg);
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output_set_value(buf, state);
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@ -198,6 +198,7 @@ static MACHINE_CONFIG_START( ktopgun, ktopgun_state )
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MCFG_CPU_ADD("maincpu", SM510, XTAL_32_768kHz)
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MCFG_SM510_WRITE_SEGA_CB(WRITE16(hh_sm510_state, lcd_segment_w))
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MCFG_SM510_WRITE_SEGB_CB(WRITE16(hh_sm510_state, lcd_segment_w))
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MCFG_SM510_WRITE_SEGBS_CB(WRITE16(hh_sm510_state, lcd_segment_w))
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MCFG_SM510_READ_K_CB(READ8(hh_sm510_state, input_r))
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MCFG_SM510_WRITE_S_CB(WRITE8(hh_sm510_state, input_w))
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MCFG_SM510_WRITE_R_CB(WRITE8(ktopgun_state, speaker_w))
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@ -266,6 +267,7 @@ static MACHINE_CONFIG_START( gnwmndon, gnwmndon_state )
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MCFG_CPU_ADD("maincpu", SM510, XTAL_32_768kHz)
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MCFG_SM510_WRITE_SEGA_CB(WRITE16(hh_sm510_state, lcd_segment_w))
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MCFG_SM510_WRITE_SEGB_CB(WRITE16(hh_sm510_state, lcd_segment_w))
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MCFG_SM510_WRITE_SEGBS_CB(WRITE16(hh_sm510_state, lcd_segment_w))
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MCFG_SM510_READ_K_CB(READ8(hh_sm510_state, input_r))
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MCFG_SM510_WRITE_S_CB(WRITE8(hh_sm510_state, input_w))
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MCFG_SM510_WRITE_R_CB(WRITE8(gnwmndon_state, speaker_w))
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@ -22,7 +22,7 @@
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<bounds left="0" right="64" top="0" bottom="64" />
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</bezel>
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<!-- max 12*16 matrix -->
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<!-- max 16*16 matrix -->
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<bezel name="0.0" element="led"><bounds x="0" y="0" width="1" height="1" /></bezel>
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@ -228,6 +228,74 @@
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</view>
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</mamelayout>
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