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https://github.com/holub/mame
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seicross: add cocktail mode (flip screen),
ay8910: pass outputs high-impedance state with mem_mask
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hap
parent
052d4facce
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91f5246705
@ -956,20 +956,18 @@ void ay8910_device::ay8910_write_reg(int r, int v)
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m_envelope[0].set_period(m_regs[AY_EAFINE], m_regs[AY_EACOARSE]);
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break;
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case AY_ENABLE:
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if ((m_last_enable == -1) ||
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((m_last_enable & 0x40) != (m_regs[AY_ENABLE] & 0x40)))
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if (u8 enable = m_regs[AY_ENABLE] & 0x40; enable != (m_last_enable & 0x40))
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{
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// write out 0xff if port set to input
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// output is high-impedance if port is set to input
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if (!m_port_a_write_cb.isunset())
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m_port_a_write_cb((offs_t)0, (m_regs[AY_ENABLE] & 0x40) ? m_regs[AY_PORTA] : 0xff);
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m_port_a_write_cb(0, enable ? m_regs[AY_PORTA] : 0xff, enable ? 0xff : 0);
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}
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if ((m_last_enable == -1) ||
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((m_last_enable & 0x80) != (m_regs[AY_ENABLE] & 0x80)))
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if (u8 enable = m_regs[AY_ENABLE] & 0x80; enable != (m_last_enable & 0x80))
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{
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// write out 0xff if port set to input
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// output is high-impedance if port is set to input
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if (!m_port_b_write_cb.isunset())
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m_port_b_write_cb((offs_t)0, (m_regs[AY_ENABLE] & 0x80) ? m_regs[AY_PORTB] : 0xff);
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m_port_b_write_cb(0, enable ? m_regs[AY_PORTB] : 0xff, enable ? 0xff : 0);
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}
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m_last_enable = m_regs[AY_ENABLE];
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break;
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@ -998,7 +996,7 @@ void ay8910_device::ay8910_write_reg(int r, int v)
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if (m_regs[AY_ENABLE] & 0x40)
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{
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if (!m_port_a_write_cb.isunset())
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m_port_a_write_cb((offs_t)0, m_regs[AY_PORTA]);
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m_port_a_write_cb(m_regs[AY_PORTA]);
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else
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LOGMASKED(LOG_WARNINGS, "%s: warning: unmapped write %02x to %s Port A\n", machine().describe_context(), v, name());
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}
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@ -1011,7 +1009,7 @@ void ay8910_device::ay8910_write_reg(int r, int v)
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if (m_regs[AY_ENABLE] & 0x80)
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{
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if (!m_port_b_write_cb.isunset())
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m_port_b_write_cb((offs_t)0, m_regs[AY_PORTB]);
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m_port_b_write_cb(m_regs[AY_PORTB]);
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else
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LOGMASKED(LOG_WARNINGS, "%s: warning: unmapped write %02x to %s Port B\n", machine().describe_context(), v, name());
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}
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@ -1328,7 +1326,7 @@ void ay8910_device::ay8910_reset_ym()
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m_noise_value = 0;
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m_count_noise = 0;
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m_prescale_noise = 0;
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m_last_enable = -1; // force a write
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m_last_enable = 0xc0; // force a write
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for (int i = 0; i < AY_PORTA; i++)
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ay8910_write_reg(i,0);
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m_ready = 1;
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@ -1419,7 +1417,7 @@ u8 ay8910_device::ay8910_read_ym()
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switch (r)
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{
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case AY_PORTA:
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if ((m_regs[AY_ENABLE] & 0x40) != 0)
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if (m_regs[AY_ENABLE] & 0x40)
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LOGMASKED(LOG_WARNINGS, "%s: warning - read from %s Port A set as output\n", machine().describe_context(), name());
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/*
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even if the port is set as output, we still need to return the external
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@ -1432,15 +1430,15 @@ u8 ay8910_device::ay8910_read_ym()
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case were it makes a difference in comparison to a standard TTL output.
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*/
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if (!m_port_a_read_cb.isunset())
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m_regs[AY_PORTA] = m_port_a_read_cb(0);
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m_regs[AY_PORTA] = m_port_a_read_cb();
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else
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LOGMASKED(LOG_WARNINGS, "%s: warning - read 8910 Port A\n", machine().describe_context());
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break;
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case AY_PORTB:
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if ((m_regs[AY_ENABLE] & 0x80) != 0)
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if (m_regs[AY_ENABLE] & 0x80)
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LOGMASKED(LOG_WARNINGS, "%s: warning - read from 8910 Port B set as output\n", machine().describe_context());
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if (!m_port_b_read_cb.isunset())
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m_regs[AY_PORTB] = m_port_b_read_cb(0);
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m_regs[AY_PORTB] = m_port_b_read_cb();
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else
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LOGMASKED(LOG_WARNINGS, "%s: warning - read 8910 Port B\n", machine().describe_context());
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break;
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@ -308,7 +308,7 @@ private:
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bool m_active;
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u8 m_register_latch;
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u8 m_regs[16 * 2];
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s16 m_last_enable;
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u8 m_last_enable;
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tone_t m_tone[NUM_CHANNELS];
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envelope_t m_envelope[NUM_CHANNELS];
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u8 m_prescale_noise;
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@ -63,16 +63,6 @@ TODO:
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#include "tilemap.h"
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// configurable logging
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#define LOG_AYPORTB (1U << 1)
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//#define VERBOSE (LOG_GENERAL | LOG_AYPORTB)
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#include "logmacro.h"
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#define LOGAYPORTB(...) LOGMASKED(LOG_AYPORTB, __VA_ARGS__)
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namespace {
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class seicross_state : public driver_device
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@ -127,7 +117,7 @@ private:
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void videoram_w(offs_t offset, uint8_t data);
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void colorram_w(offs_t offset, uint8_t data);
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uint8_t portb_r();
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void portb_w(uint8_t data);
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void portb_w(offs_t offset, uint8_t data, uint8_t mem_mask);
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TILE_GET_INFO_MEMBER(get_bg_tile_info);
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@ -166,8 +156,8 @@ void seicross_state::machine_start()
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// install MCU waitstates
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address_space &space = m_mcu->space(AS_PROGRAM);
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// MR is asserted when it does an access with A15 is high
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// this makes DAC sound pitch the same as PCB recordings
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// MR is asserted when it does an access with A15 is high,
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// this makes DAC sound pitch the same as PCB recordings.
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space.install_read_tap(
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0x8000, 0xffff,
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"mcu_mr_r",
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@ -285,10 +275,18 @@ void seicross_state::draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprec
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uint8_t const *data = &m_spriteram[bank][offs];
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int const code = (data[0] & 0x3f) | ((data[1] & 0x10) << 2) | (bank ? 0 : 0x80);
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int const color = data[1] & 0x0f;
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int const flipx = BIT(data[0], 6);
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int const flipy = BIT(data[0], 7);
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int const x = data[3];
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int const y = 240 - data[2];
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int flipx = BIT(data[0], 6);
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int flipy = BIT(data[0], 7);
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int x = data[3];
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int y = 240 - data[2];
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if (flip_screen())
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{
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x = 240 - x;
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y = 240 - y;
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flipx = !flipx;
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flipy = !flipy;
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}
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m_gfxdecode->gfx(1)->transpen(bitmap, cliprect, code, color, flipx, flipy, x, y, 0);
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@ -314,27 +312,29 @@ uint32_t seicross_state::screen_update(screen_device &screen, bitmap_ind16 &bitm
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uint8_t seicross_state::portb_r()
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{
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return (m_portb & 0x9f) | (m_debug_port.read_safe(0) & 0x60);
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return (m_portb & 0x0f) | (m_debug_port.read_safe(0) & 0xf0);
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}
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void seicross_state::portb_w(uint8_t data)
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void seicross_state::portb_w(offs_t offset, uint8_t data, uint8_t mem_mask)
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{
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LOGAYPORTB("PC %04x: 8910 port B = %02x\n", m_maincpu->pc(), data);
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// ignore if high-impedance (seicross relies on it)
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if (mem_mask == 0)
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return;
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// bit 0 is IRQ enable
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m_irq_mask = data & 1;
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// bit 1 flips screen
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flip_screen_set(data & 2);
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// bit 2 resets the microcontroller
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if (((m_portb & 4) == 0) && (data & 4))
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{
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// reset and start the protection MCU
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m_mcu->pulse_input_line(INPUT_LINE_RESET, attotime::zero);
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m_mcu->set_input_line(INPUT_LINE_HALT, CLEAR_LINE);
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}
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// other bits unknown
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// other bits unused
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m_portb = data;
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}
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@ -568,14 +568,14 @@ static INPUT_PORTS_START( seicross )
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PORT_BIT( 0xf0, IP_ACTIVE_HIGH, IPT_UNUSED )
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PORT_START("DEBUG")
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PORT_BIT( 0x1f, IP_ACTIVE_HIGH, IPT_UNKNOWN )
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PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
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PORT_DIPNAME( 0x20, 0x20, "Debug Mode" )
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PORT_DIPSETTING( 0x20, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x00, DEF_STR( On ) )
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PORT_DIPNAME( 0x40, 0x40, "Invulnerability" )
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PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x00, DEF_STR( On ) )
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PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNKNOWN )
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PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
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INPUT_PORTS_END
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@ -933,15 +933,15 @@ ROM_END
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} // anonymous namespace
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GAME( 1981, friskyt, 0, nvram, friskyt, seicross_state, empty_init, ROT0, "Nichibutsu", "Frisky Tom (set 1)", MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )
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GAME( 1981, friskyta, friskyt, nvram, friskyt, seicross_state, empty_init, ROT0, "Nichibutsu", "Frisky Tom (set 2)", MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )
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GAME( 1981, friskytb, friskyt, friskytb, friskyt, seicross_state, empty_init, ROT0, "Nichibutsu", "Frisky Tom (set 3)", MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )
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GAME( 1981, friskyt, 0, nvram, friskyt, seicross_state, empty_init, ROT0, "Nichibutsu", "Frisky Tom (set 1)", MACHINE_SUPPORTS_SAVE )
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GAME( 1981, friskyta, friskyt, nvram, friskyt, seicross_state, empty_init, ROT0, "Nichibutsu", "Frisky Tom (set 2)", MACHINE_SUPPORTS_SAVE )
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GAME( 1981, friskytb, friskyt, friskytb, friskyt, seicross_state, empty_init, ROT0, "Nichibutsu", "Frisky Tom (set 3)", MACHINE_SUPPORTS_SAVE )
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GAME( 1982, radrad, 0, no_nvram, radrad, seicross_state, empty_init, ROT0, "Logitec Corp. (Nichibutsu USA license)", "Radical Radial (US)", MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )
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GAME( 1983, radradj, radrad, no_nvram, radrad, seicross_state, empty_init, ROT0, "Logitec Corp.", "Radical Radial (Japan)", MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )
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GAME( 1982, radrad, 0, no_nvram, radrad, seicross_state, empty_init, ROT0, "Logitec Corp. (Nichibutsu USA license)", "Radical Radial (US)", MACHINE_SUPPORTS_SAVE )
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GAME( 1983, radradj, radrad, no_nvram, radrad, seicross_state, empty_init, ROT0, "Logitec Corp.", "Radical Radial (Japan)", MACHINE_SUPPORTS_SAVE )
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GAME( 1984, seicross, 0, no_nvram, seicross, seicross_state, empty_init, ROT90, "Nichibutsu / Alice", "Seicross (set 1)", MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )
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GAME( 1984, seicrossa, seicross, no_nvram, seicross, seicross_state, empty_init, ROT90, "Nichibutsu / Alice", "Seicross (set 2)", MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )
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GAME( 1984, sectrzon, seicross, no_nvram, seicross, seicross_state, empty_init, ROT90, "Nichibutsu / Alice", "Sector Zone (set 1)", MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )
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GAME( 1984, sectrzona, seicross, no_nvram, seicross, seicross_state, empty_init, ROT90, "Nichibutsu / Alice", "Sector Zone (set 2)", MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )
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GAME( 1984, sectrzont, seicross, sectznt, seicross, seicross_state, empty_init, ROT90, "bootleg (Tecfri)", "Sector Zone (bootleg)", MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )
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GAME( 1984, seicross, 0, no_nvram, seicross, seicross_state, empty_init, ROT90, "Nichibutsu / Alice", "Seicross (set 1)", MACHINE_SUPPORTS_SAVE )
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GAME( 1984, seicrossa, seicross, no_nvram, seicross, seicross_state, empty_init, ROT90, "Nichibutsu / Alice", "Seicross (set 2)", MACHINE_SUPPORTS_SAVE )
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GAME( 1984, sectrzon, seicross, no_nvram, seicross, seicross_state, empty_init, ROT90, "Nichibutsu / Alice", "Sector Zone (set 1)", MACHINE_SUPPORTS_SAVE )
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GAME( 1984, sectrzona, seicross, no_nvram, seicross, seicross_state, empty_init, ROT90, "Nichibutsu / Alice", "Sector Zone (set 2)", MACHINE_SUPPORTS_SAVE )
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GAME( 1984, sectrzont, seicross, sectznt, seicross, seicross_state, empty_init, ROT90, "bootleg (Tecfri)", "Sector Zone (bootleg)", MACHINE_SUPPORTS_SAVE )
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