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Diffstat (limited to 'src/mame/audio/scramble.cpp')
-rw-r--r-- | src/mame/audio/scramble.cpp | 302 |
1 files changed, 0 insertions, 302 deletions
diff --git a/src/mame/audio/scramble.cpp b/src/mame/audio/scramble.cpp deleted file mode 100644 index 710568d899b..00000000000 --- a/src/mame/audio/scramble.cpp +++ /dev/null @@ -1,302 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Nicola Salmoria -/*************************************************************************** - - This file contains functions to emulate the sound hardware found on - Scramble type boards. - - There are two types, one has 2 AY8910's and the other one has one of the - AY8910's removed. Interestingly, it appears that the one AY8910 version - came after the 2 AY8910 one. This is supported by the fact that in the - one 8190 version, the filter system uses bits 6-11, while bits 0-5 are - left unused. - -***************************************************************************/ - -#include "emu.h" -#include "includes/scramble.h" - -#include "cpu/z80/z80.h" -#include "machine/7474.h" -#include "sound/ay8910.h" -#include "speaker.h" - -#define AD2083_TMS5110_CLOCK XTAL(640'000) - -/* The timer clock in Scramble which feeds the upper 4 bits of */ -/* AY-3-8910 port A is based on the same clock */ -/* feeding the sound CPU Z80. It is a divide by */ -/* 5120, formed by a standard divide by 512, */ -/* followed by a divide by 10 using a 4 bit */ -/* bi-quinary count sequence. (See LS90 data sheet */ -/* for an example). */ -/* */ -/* Bit 4 comes from the output of the divide by 1024 */ -/* 0, 1, 0, 1, 0, 1, 0, 1, 0, 1 */ -/* Bit 5 comes from the QC output of the LS90 producing a sequence of */ -/* 0, 0, 1, 1, 0, 0, 1, 1, 1, 0 */ -/* Bit 6 comes from the QD output of the LS90 producing a sequence of */ -/* 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 */ -/* Bit 7 comes from the QA output of the LS90 producing a sequence of */ -/* 0, 0, 0, 0, 0, 1, 1, 1, 1, 1 */ - -static const int scramble_timer[10] = -{ - 0x00, 0x10, 0x20, 0x30, 0x40, 0x90, 0xa0, 0xb0, 0xa0, 0xd0 -}; - -READ8_MEMBER( scramble_state::scramble_portB_r ) -{ - return scramble_timer[(m_audiocpu->total_cycles()/512) % 10]; -} - - - -/* The timer clock in Frogger which feeds the upper 4 bits of */ -/* AY-3-8910 port A is based on the same clock */ -/* feeding the sound CPU Z80. It is a divide by */ -/* 5120, formed by a standard divide by 512, */ -/* followed by a divide by 10 using a 4 bit */ -/* bi-quinary count sequence. (See LS90 data sheet */ -/* for an example). */ -/* */ -/* Bit 4 comes from the output of the divide by 1024 */ -/* 0, 1, 0, 1, 0, 1, 0, 1, 0, 1 */ -/* Bit 3 comes from the QC output of the LS90 producing a sequence of */ -/* 0, 0, 1, 1, 0, 0, 1, 1, 1, 0 */ -/* Bit 6 comes from the QD output of the LS90 producing a sequence of */ -/* 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 */ -/* Bit 7 comes from the QA output of the LS90 producing a sequence of */ -/* 0, 0, 0, 0, 0, 1, 1, 1, 1, 1 */ - -static const int frogger_timer[10] = -{ - 0x00, 0x10, 0x08, 0x18, 0x40, 0x90, 0x88, 0x98, 0x88, 0xd0 -}; - -READ8_MEMBER( scramble_state::hustler_portB_r ) -{ - return frogger_timer[(m_audiocpu->total_cycles()/512) % 10]; -} - -WRITE8_MEMBER( scramble_state::scramble_sh_irqtrigger_w ) -{ - /* the complement of bit 3 is connected to the flip-flop's clock */ - m_konami_7474->clock_w((~data & 0x08) >> 3); - - /* bit 4 is sound disable */ - machine().sound().system_mute((data & 0x10) >> 4); -} - -WRITE8_MEMBER( scramble_state::mrkougar_sh_irqtrigger_w ) -{ - /* the complement of bit 3 is connected to the flip-flop's clock */ - m_konami_7474->clock_w((~data & 0x08) >> 3); -} - -IRQ_CALLBACK_MEMBER(scramble_state::scramble_sh_irq_callback) -{ - /* interrupt acknowledge clears the flip-flop -- - we need to pulse the CLR line because MAME's core never clears this - line, only asserts it */ - m_konami_7474->clear_w(0); - - m_konami_7474->clear_w(1); - - return 0xff; -} - -WRITE_LINE_MEMBER(scramble_state::scramble_sh_7474_q_callback) -{ - /* the Q bar is connected to the Z80's INT line. But since INT is complemented, */ - /* we need to complement Q bar */ - if (m_audiocpu) - m_audiocpu->set_input_line(0, !state ? ASSERT_LINE : CLEAR_LINE); -} - -WRITE8_MEMBER(scramble_state::hotshock_sh_irqtrigger_w) -{ - m_audiocpu->set_input_line(0, ASSERT_LINE); -} - -READ8_MEMBER( scramble_state::hotshock_soundlatch_r ) -{ - m_audiocpu->set_input_line(0, CLEAR_LINE); - return m_soundlatch->read(); -} - -void scramble_state::sh_init() -{ - /* PR is always 0, D is always 1 */ - m_konami_7474->d_w(1); -} - - -// Harem (same as scorpion) - -READ8_MEMBER(scramble_state::harem_digitalker_intr_r) -{ - return m_digitalker->digitalker_0_intr_r(); -} - -WRITE8_MEMBER(scramble_state::harem_digitalker_control_w) -{ - m_digitalker->digitalker_0_cs_w (data & 1 ? ASSERT_LINE : CLEAR_LINE); - m_digitalker->digitalker_0_cms_w(data & 2 ? ASSERT_LINE : CLEAR_LINE); - m_digitalker->digitalker_0_wr_w (data & 4 ? ASSERT_LINE : CLEAR_LINE); -} - - -/*************************************************************************** - AD2083 TMS5110 implementation (still wrong!) - - ROMA: BIT1: Hypersoni ? - ROMA: BIT2: Two thousand eighty three - ROMA: BIT4: Atomic City Attack - ROMA: BIT5: Thank you, please try again - ROMA: BIT6: Two, one, fire - ROMA: BIT7: Hyperjump - ROMB: BIT1: Noise (Explosion ?) - ROMB: BIT2: Welcome to the top 20 - ROMB: BIT4: Atomic City Attack - ROMB: BIT5: Noise (Explosion ?) - ROMB: BIT6: Keep going pressing - ROMB: BIT7: You are the new champion - - The circuit consist of - - 2x 2532 32Kbit roms - 2x 74LS393 quad 4bit counters to address roms - 1x 74LS174 hex-d-flipflops to latch control byte - 2x 74LS139 decoder to decode rom selects - 1x 74LS161 8bit input multiplexor to select sound bit for rom data read - 1x 74LS00 quad nand to decode signals (unknown) to latch control byte - ==> 74LS139 - 1x 74LS16 quad open collector inverters - 1x 74S288 32x8 Prom - - The prom obviously is used to provide the right timing when - fetching data bits. This circuit should be comparable to bagman. - - Prom - Q0 ==> NC - Q1 ==> PDC - Q2 ==> CTL2/CTL8 (Speak/Reset) - Q6 ==> Reset Counters (LS393) - Q7 ==> Trigger Logic - - only 16 bytes needed ... The original dump is bad. This - is what is needed to get speech to work. The prom data has - been updated and marked as BAD_DUMP. The information below - is given for reference once another dump should surface. - - static const int prom[16] = {0x00, 0x00, 0x02, 0x00, 0x00, 0x02, 0x00, 0x00, - 0x02, 0x00, 0x40, 0x00, 0x04, 0x06, 0x04, 0x84 }; - - - ***************************************************************************/ - -/* - * Alt1 Alt2 - * 1 ==> C B Bit select - * 2 ==> B C Bit select - * 3 ==> A A Bit select - * 4 ==> B1 Rom select - * 5 ==> A1 Rom select - * - * ALT1 ALT2 - * 321 CBA CBA - * 000 000 000 - * 001 100 010 - * 010 010 100 - * 011 110 110 - * 100 001 001 - * 101 101 011 - * 110 011 101 - * 111 111 111 - * - * Alt1 provides more sensible sound. Both Alt1 and Alt2 are - * possible on PCB so Alt2 is left in for documentation. - * - */ - -WRITE8_MEMBER( scramble_state::ad2083_tms5110_ctrl_w ) -{ - static const int tbl[8] = {0,4,2,6,1,5,3,7}; - - m_tmsprom->bit_w(space, 0, tbl[data & 0x07]); - switch (data>>3) - { - case 0x01: - m_tmsprom->rom_csq_w(space, 1, 0); - break; - case 0x03: - m_tmsprom->rom_csq_w(space, 0, 0); - break; - case 0x00: - /* Rom 2 select */ - logerror("Rom 2 select\n"); - break; - case 0x02: - logerror("Rom 3 select .. \n"); - /* Rom 3 select */ - break; - } - /* most likely triggered by write access */ - m_tmsprom->enable_w(0); - m_tmsprom->enable_w(1); -} - -void scramble_state::ad2083_sound_map(address_map &map) -{ - map(0x0000, 0x2fff).rom(); - map(0x8000, 0x83ff).ram(); -} - -void scramble_state::ad2083_sound_io_map(address_map &map) -{ - map.global_mask(0xff); - map(0x01, 0x01).w(FUNC(scramble_state::ad2083_tms5110_ctrl_w)); - map(0x10, 0x10).w("ay1", FUNC(ay8910_device::address_w)); - map(0x20, 0x20).rw("ay1", FUNC(ay8910_device::data_r), FUNC(ay8910_device::data_w)); - map(0x40, 0x40).rw("ay2", FUNC(ay8910_device::data_r), FUNC(ay8910_device::data_w)); - map(0x80, 0x80).w("ay2", FUNC(ay8910_device::address_w)); -} - -void scramble_state::ad2083_audio(machine_config &config) -{ - Z80(config, m_audiocpu, 14318000/8); /* 1.78975 MHz */ - m_audiocpu->set_addrmap(AS_PROGRAM, &scramble_state::ad2083_sound_map); - m_audiocpu->set_addrmap(AS_IO, &scramble_state::ad2083_sound_io_map); - - TMSPROM(config, m_tmsprom, AD2083_TMS5110_CLOCK / 2); /* rom clock */ - m_tmsprom->set_region("5110ctrl"); /* prom memory region - sound region is automatically assigned */ - m_tmsprom->set_rom_size(0x1000); /* individual rom_size */ - m_tmsprom->set_pdc_bit(1); /* bit # of pdc line */ - /* virtual bit 8: constant 0, virtual bit 9:constant 1 */ - m_tmsprom->set_ctl1_bit(8); /* bit # of ctl1 line */ - m_tmsprom->set_ctl2_bit(2); /* bit # of ctl2 line */ - m_tmsprom->set_ctl4_bit(8); /* bit # of ctl4 line */ - m_tmsprom->set_ctl8_bit(2); /* bit # of ctl8 line */ - m_tmsprom->set_reset_bit(6); /* bit # of rom reset */ - m_tmsprom->set_stop_bit(7); /* bit # of stop */ - m_tmsprom->pdc().set("tms", FUNC(tms5110_device::pdc_w)); /* tms pdc func */ - m_tmsprom->ctl().set("tms", FUNC(tms5110_device::ctl_w)); /* tms ctl func */ - - SPEAKER(config, "mono").front_center(); - - GENERIC_LATCH_8(config, m_soundlatch); - - ay8910_device &ay1(AY8910(config, "ay1", 14318000/8)); - ay1.port_a_read_callback().set(FUNC(scramble_state::scramble_portB_r)); - ay1.add_route(ALL_OUTPUTS, "mono", 1.0); - - ay8910_device &ay2(AY8910(config, "ay2", 14318000/8)); - ay2.port_a_read_callback().set(FUNC(scramble_state::hotshock_soundlatch_r)); - ay2.add_route(ALL_OUTPUTS, "mono", 1.0); - - tms5110a_device &tms(TMS5110A(config, "tms", AD2083_TMS5110_CLOCK)); - tms.m0().set("tmsprom", FUNC(tmsprom_device::m0_w)); - tms.data().set("tmsprom", FUNC(tmsprom_device::data_r)); - tms.add_route(ALL_OUTPUTS, "mono", 1.0); -} |