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guab: cleanup, hook up sn76489 ready signal, hook up some debug leds

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This commit is contained in:
Dirk Best 2016-12-01 18:26:55 +01:00
parent f43b81317e
commit c776b48e5f
2 changed files with 314 additions and 155 deletions
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303
src/mame/drivers/guab.cpp
View File

@ -1,5 +1,5 @@
// license:BSD-3-Clause
// copyright-holders:Philip Bennett
// copyright-holders:Philip Bennett, Dirk Best
/***************************************************************************
JPM Give us a Break hardware
@ -23,6 +23,11 @@
security PAL - maybe this is related? I'm poking the coin values
directly into RAM for now.
* Verify WD FDC type
* Are IRQs 1 or 2 connected to something?
* Hook up ACIA (IRQ 4)
* Hook up watchdog NMI
* Verify clocks
* Use real video timings
***************************************************************************/
@ -35,24 +40,7 @@
#include "machine/wd_fdc.h"
#include "formats/guab_dsk.h"
#include "softlist.h"
/*************************************
*
* Defines
*
*************************************/
enum int_levels
{
INT_UNKNOWN1 = 1,
INT_UNKNOWN2 = 2,
INT_6840PTM = 3,
INT_6850ACIA = 4,
INT_TMS34061 = 5,
INT_FLOPPYCTRL = 6,
INT_WATCHDOG_INT = 7
};
#include "guab.lh"
class guab_state : public driver_device
@ -67,17 +55,24 @@ public:
m_floppy(*this, "fdc:0"),
m_palette(*this, "palette") { }
EF9369_COLOR_UPDATE(ef9369_color_update);
DECLARE_WRITE_LINE_MEMBER(generate_tms34061_interrupt);
DECLARE_WRITE16_MEMBER(guab_tms34061_w);
DECLARE_READ16_MEMBER(guab_tms34061_r);
DECLARE_READ16_MEMBER(io_r);
DECLARE_WRITE16_MEMBER(io_w);
DECLARE_INPUT_CHANGED_MEMBER(coin_inserted);
DECLARE_WRITE_LINE_MEMBER(ptm_irq);
DECLARE_WRITE16_MEMBER(tms34061_w);
DECLARE_READ16_MEMBER(tms34061_r);
uint32_t screen_update_guab(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
DECLARE_WRITE8_MEMBER(output1_w);
DECLARE_WRITE8_MEMBER(output2_w);
DECLARE_WRITE8_MEMBER(output3_w);
DECLARE_WRITE8_MEMBER(output4_w);
DECLARE_WRITE8_MEMBER(output5_w);
DECLARE_WRITE8_MEMBER(output6_w);
DECLARE_READ8_MEMBER(sn76489_ready_r);
DECLARE_WRITE8_MEMBER(floppy_ctrl_w);
DECLARE_WRITE8_MEMBER(watchdog_w);
DECLARE_WRITE8_MEMBER(unknown_w);
DECLARE_INPUT_CHANGED_MEMBER(coin_inserted);
DECLARE_FLOPPY_FORMATS(floppy_formats);
protected:
@ -93,17 +88,6 @@ private:
};
/*************************************
*
* 6840 PTM
*
*************************************/
WRITE_LINE_MEMBER(guab_state::ptm_irq)
{
m_maincpu->set_input_line(INT_6840PTM, state);
}
/*************************************
*
* Video hardware
@ -115,16 +99,7 @@ EF9369_COLOR_UPDATE( guab_state::ef9369_color_update )
m_palette->set_pen_color(entry, pal4bit(ca), pal4bit(cb), pal4bit(cc));
}
/*****************
* TMS34061 CRTC
*****************/
WRITE_LINE_MEMBER(guab_state::generate_tms34061_interrupt)
{
m_maincpu->set_input_line(INT_TMS34061, state);
}
WRITE16_MEMBER(guab_state::guab_tms34061_w)
WRITE16_MEMBER( guab_state::tms34061_w )
{
int func = (offset >> 19) & 3;
int row = (offset >> 7) & 0xff;
@ -142,8 +117,7 @@ WRITE16_MEMBER(guab_state::guab_tms34061_w)
m_tms34061->write(space, col | 1, row, func, data & 0xff);
}
READ16_MEMBER(guab_state::guab_tms34061_r)
READ16_MEMBER( guab_state::tms34061_r )
{
uint16_t data = 0;
int func = (offset >> 19) & 3;
@ -164,7 +138,6 @@ READ16_MEMBER(guab_state::guab_tms34061_r)
return data;
}
uint32_t guab_state::screen_update_guab(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
int x, y;
@ -197,36 +170,11 @@ uint32_t guab_state::screen_update_guab(screen_device &screen, bitmap_ind16 &bit
}
/****************************************
/*************************************
*
* Hardware inputs (coins, buttons etc)
* I/O
*
****************************************/
READ16_MEMBER(guab_state::io_r)
{
static const char *const portnames[] = { "IN0", "IN1", "IN2" };
switch (offset)
{
case 0x00:
case 0x01:
case 0x02:
{
return ioport(portnames[offset])->read();
}
case 0x30:
{
/* Whatever it is, bit 7 must be 0 */
return 0x7f;
}
default:
{
osd_printf_debug("Unknown IO R:0x%x\n", 0xc0000 + (offset * 2));
return 0;
}
}
}
*************************************/
INPUT_CHANGED_MEMBER(guab_state::coin_inserted)
{
@ -241,75 +189,106 @@ INPUT_CHANGED_MEMBER(guab_state::coin_inserted)
}
}
/****************************************
*
* Hardware outputs (lamps, meters etc)
*
****************************************/
WRITE16_MEMBER(guab_state::io_w)
WRITE8_MEMBER( guab_state::output1_w )
{
switch (offset)
{
case 0x10:
{
/* Outputs 0 - 7 */
break;
}
case 0x11:
{
/* Outputs 8 - 15 */
break;
}
case 0x12:
{
/* Outputs 16 - 23 */
break;
}
case 0x20:
{
/* Outputs 24 - 31 */
break;
}
case 0x21:
{
/* Outputs 32 - 39 */
break;
}
case 0x22:
{
/* Outputs 40 - 47 */
break;
}
case 0x30:
{
m_sn->write(space, 0, data & 0xff);
break;
}
case 0x31:
{
/* Only JPM knows about the other bits... */
m_floppy->get_device()->ss_w(BIT(data, 3));
output().set_value("led_0", BIT(data, 0));
output().set_value("led_1", BIT(data, 1));
output().set_value("led_2", BIT(data, 2));
output().set_value("led_3", BIT(data, 3));
output().set_value("led_4", BIT(data, 4));
output().set_value("led_5", BIT(data, 5));
output().set_value("led_6", BIT(data, 6));
output().set_value("led_7", BIT(data, 7));
}
// one of those bits will probably control the motor, we just let it run all the time for now
m_floppy->get_device()->mon_w(0);
break;
}
case 0x32:
{
/* Watchdog? */
break;
}
case 0x33:
{
/* Dunno */
break;
}
default:
{
osd_printf_debug("Unknown IO W:0x%x with %x\n", 0xc0000 + (offset * 2), data);
}
}
WRITE8_MEMBER( guab_state::output2_w )
{
output().set_value("led_8", BIT(data, 0));
output().set_value("led_9", BIT(data, 1));
output().set_value("led_10", BIT(data, 2));
output().set_value("led_11", BIT(data, 3));
output().set_value("led_12", BIT(data, 4));
output().set_value("led_13", BIT(data, 5));
output().set_value("led_14", BIT(data, 6));
output().set_value("led_15", BIT(data, 7));
}
WRITE8_MEMBER( guab_state::output3_w )
{
output().set_value("led_16", BIT(data, 0));
output().set_value("led_17", BIT(data, 1));
output().set_value("led_18", BIT(data, 2));
output().set_value("led_19", BIT(data, 3));
output().set_value("led_20", BIT(data, 4));
output().set_value("led_21", BIT(data, 5));
output().set_value("led_22", BIT(data, 6));
output().set_value("led_23", BIT(data, 7));
}
WRITE8_MEMBER( guab_state::output4_w )
{
output().set_value("led_24", BIT(data, 0));
output().set_value("led_25", BIT(data, 1));
output().set_value("led_26", BIT(data, 2));
output().set_value("led_27", BIT(data, 3));
output().set_value("led_28", BIT(data, 4));
output().set_value("led_29", BIT(data, 5));
output().set_value("led_30", BIT(data, 6));
output().set_value("led_31", BIT(data, 7));
}
WRITE8_MEMBER( guab_state::output5_w )
{
output().set_value("led_32", BIT(data, 0));
output().set_value("led_33", BIT(data, 1));
output().set_value("led_34", BIT(data, 2));
output().set_value("led_35", BIT(data, 3));
output().set_value("led_36", BIT(data, 4));
output().set_value("led_37", BIT(data, 5));
output().set_value("led_38", BIT(data, 6));
output().set_value("led_39", BIT(data, 7));
}
WRITE8_MEMBER( guab_state::output6_w )
{
output().set_value("led_40", BIT(data, 0));
output().set_value("led_41", BIT(data, 1));
output().set_value("led_42", BIT(data, 2));
output().set_value("led_43", BIT(data, 3));
output().set_value("led_44", BIT(data, 4));
output().set_value("led_45", BIT(data, 5));
output().set_value("led_46", BIT(data, 6));
output().set_value("led_47", BIT(data, 7));
}
READ8_MEMBER( guab_state::sn76489_ready_r )
{
// bit 7 connected to sn76489 ready output (0 = ready)
return ~(m_sn->ready_r() << 7);
}
WRITE8_MEMBER( guab_state::floppy_ctrl_w )
{
m_floppy->get_device()->ss_w(BIT(data, 3));
// one of those bits will probably control the motor, we just let it run all the time for now
m_floppy->get_device()->mon_w(0);
}
WRITE8_MEMBER( guab_state::watchdog_w )
{
// nibbles only
// reads from the port, then writes the sequence
// b 3 1 5 d a 2 0 4 0 8 b 3 1 5 d a 2 0 4 0 8
// this continues 10 times, after that it just
// continues writing f to it
}
WRITE8_MEMBER( guab_state::unknown_w )
{
// unknown
// at startup, 0x88 or 0x98 is written here
// while the game is running only 0x88
}
@ -322,15 +301,27 @@ WRITE16_MEMBER(guab_state::io_w)
static ADDRESS_MAP_START( guab_map, AS_PROGRAM, 16, guab_state )
AM_RANGE(0x000000, 0x00ffff) AM_ROM
AM_RANGE(0x040000, 0x04ffff) AM_ROM AM_REGION("maincpu", 0x10000)
AM_RANGE(0x0c0000, 0x0c007f) AM_READWRITE(io_r, io_w)
AM_RANGE(0x0c0080, 0x0c0083) AM_NOP /* ACIA 1 */
AM_RANGE(0x0c00a0, 0x0c00a3) AM_NOP /* ACIA 2 */
AM_RANGE(0x0c00c0, 0x0c00cf) AM_DEVREADWRITE8("6840ptm", ptm6840_device, read, write, 0xff)
AM_RANGE(0x0c0000, 0x0c0001) AM_READ_PORT("IN0")
AM_RANGE(0x0c0002, 0x0c0003) AM_READ_PORT("IN1")
AM_RANGE(0x0c0004, 0x0c0005) AM_READ_PORT("IN2")
AM_RANGE(0x0c0020, 0x0c0021) AM_WRITE8(output1_w, 0x00ff)
AM_RANGE(0x0c0022, 0x0c0023) AM_WRITE8(output2_w, 0x00ff)
AM_RANGE(0x0c0024, 0x0c0025) AM_WRITE8(output3_w, 0x00ff)
AM_RANGE(0x0c0040, 0x0c0041) AM_WRITE8(output4_w, 0x00ff)
AM_RANGE(0x0c0042, 0x0c0043) AM_WRITE8(output5_w, 0x00ff)
AM_RANGE(0x0c0044, 0x0c0045) AM_WRITE8(output6_w, 0x00ff)
AM_RANGE(0x0c0060, 0x0c0061) AM_READ8(sn76489_ready_r, 0x00ff) AM_DEVWRITE8("snsnd", sn76489_device, write, 0x00ff)
AM_RANGE(0x0c0062, 0x0c0063) AM_WRITE8(floppy_ctrl_w, 0x00ff)
AM_RANGE(0x0c0064, 0x0c0065) AM_WRITE8(watchdog_w, 0x00ff)
AM_RANGE(0x0c0066, 0x0c0067) AM_WRITE8(unknown_w, 0x00ff)
// AM_RANGE(0x0c0080, 0x0c0083) AM_NOP /* ACIA 1 */
// AM_RANGE(0x0c00a0, 0x0c00a3) AM_NOP /* ACIA 2 */
AM_RANGE(0x0c00c0, 0x0c00cf) AM_DEVREADWRITE8("6840ptm", ptm6840_device, read, write, 0x00ff)
AM_RANGE(0x0c00e0, 0x0c00e7) AM_DEVREADWRITE8("fdc", wd1773_t, read, write, 0x00ff)
AM_RANGE(0x080000, 0x080fff) AM_RAM
AM_RANGE(0x100000, 0x100001) AM_DEVREADWRITE8("ef9369", ef9369_device, data_r, data_w, 0x00ff)
AM_RANGE(0x100002, 0x100003) AM_DEVWRITE8("ef9369", ef9369_device, address_w, 0x00ff)
AM_RANGE(0x800000, 0xb0ffff) AM_READWRITE(guab_tms34061_r, guab_tms34061_w)
AM_RANGE(0x800000, 0xb0ffff) AM_READWRITE(tms34061_r, tms34061_w)
AM_RANGE(0xb10000, 0xb1ffff) AM_RAM
AM_RANGE(0xb80000, 0xb8ffff) AM_RAM
AM_RANGE(0xb90000, 0xb9ffff) AM_RAM
@ -448,8 +439,8 @@ static MACHINE_CONFIG_START( guab, guab_state )
MCFG_DEVICE_ADD("tms34061", TMS34061, 0)
MCFG_TMS34061_ROWSHIFT(8) /* VRAM address is (row << rowshift) | col */
MCFG_TMS34061_VRAM_SIZE(0x40000) /* size of video RAM */
MCFG_TMS34061_INTERRUPT_CB(WRITELINE(guab_state, generate_tms34061_interrupt)) /* interrupt gen callback */
MCFG_TMS34061_VRAM_SIZE(0x40000)
MCFG_TMS34061_INTERRUPT_CB(INPUTLINE("maincpu", 5))
MCFG_SPEAKER_STANDARD_MONO("mono")
@ -461,16 +452,18 @@ static MACHINE_CONFIG_START( guab, guab_state )
MCFG_DEVICE_ADD("6840ptm", PTM6840, 0)
MCFG_PTM6840_INTERNAL_CLOCK(1000000)
MCFG_PTM6840_EXTERNAL_CLOCKS(0, 0, 0)
MCFG_PTM6840_IRQ_CB(WRITELINE(guab_state, ptm_irq))
MCFG_PTM6840_IRQ_CB(INPUTLINE("maincpu", 3))
// floppy
MCFG_WD1773_ADD("fdc", 8000000)
MCFG_WD_FDC_DRQ_CALLBACK(INPUTLINE("maincpu", INT_FLOPPYCTRL))
MCFG_WD_FDC_DRQ_CALLBACK(INPUTLINE("maincpu", 6))
MCFG_FLOPPY_DRIVE_ADD("fdc:0", guab_floppies, "dd", guab_state::floppy_formats)
MCFG_SLOT_FIXED(true)
MCFG_SOFTWARE_LIST_ADD("floppy_list", "guab")
MCFG_DEFAULT_LAYOUT(layout_guab)
MACHINE_CONFIG_END

166
src/mame/layout/guab.lay Normal file
View File

@ -0,0 +1,166 @@
<?xml version="1.0"?>
<mamelayout version="2">
<element name="background">
</element>
<element name="led" defstate="0">
<rect state="0">
<color red="0" green="0.2" blue="0" />
</rect>
<rect state="1">
<color red="0" green="0.8" blue="0" />
</rect>
</element>
<view name="Debugging Lamps">
<bezel element="background">
<bounds x="0" y="0" width="800" height="650" />
</bezel>
<screen index="0">
<bounds left="0" top="0" right="800" bottom="600" />
</screen>
<bezel name="led_0" element="led">
<bounds x="10" y="610" width="10" height="10" />
</bezel>
<bezel name="led_1" element="led">
<bounds x="30" y="610" width="10" height="10" />
</bezel>
<bezel name="led_2" element="led">
<bounds x="50" y="610" width="10" height="10" />
</bezel>
<bezel name="led_3" element="led">
<bounds x="70" y="610" width="10" height="10" />
</bezel>
<bezel name="led_4" element="led">
<bounds x="90" y="610" width="10" height="10" />
</bezel>
<bezel name="led_5" element="led">
<bounds x="110" y="610" width="10" height="10" />
</bezel>
<bezel name="led_6" element="led">
<bounds x="130" y="610" width="10" height="10" />
</bezel>
<bezel name="led_7" element="led">
<bounds x="150" y="610" width="10" height="10" />
</bezel>
<bezel name="led_8" element="led">
<bounds x="170" y="610" width="10" height="10" />
</bezel>
<bezel name="led_9" element="led">
<bounds x="190" y="610" width="10" height="10" />
</bezel>
<bezel name="led_10" element="led">
<bounds x="210" y="610" width="10" height="10" />
</bezel>
<bezel name="led_11" element="led">
<bounds x="230" y="610" width="10" height="10" />
</bezel>
<bezel name="led_12" element="led">
<bounds x="250" y="610" width="10" height="10" />
</bezel>
<bezel name="led_13" element="led">
<bounds x="270" y="610" width="10" height="10" />
</bezel>
<bezel name="led_14" element="led">
<bounds x="290" y="610" width="10" height="10" />
</bezel>
<bezel name="led_15" element="led">
<bounds x="310" y="610" width="10" height="10" />
</bezel>
<bezel name="led_16" element="led">
<bounds x="330" y="610" width="10" height="10" />
</bezel>
<bezel name="led_17" element="led">
<bounds x="350" y="610" width="10" height="10" />
</bezel>
<bezel name="led_18" element="led">
<bounds x="370" y="610" width="10" height="10" />
</bezel>
<bezel name="led_19" element="led">
<bounds x="390" y="610" width="10" height="10" />
</bezel>
<bezel name="led_20" element="led">
<bounds x="410" y="610" width="10" height="10" />
</bezel>
<bezel name="led_21" element="led">
<bounds x="430" y="610" width="10" height="10" />
</bezel>
<bezel name="led_22" element="led">
<bounds x="450" y="610" width="10" height="10" />
</bezel>
<bezel name="led_23" element="led">
<bounds x="470" y="610" width="10" height="10" />
</bezel>a
<bezel name="led_24" element="led">
<bounds x="10" y="630" width="10" height="10" />
</bezel>
<bezel name="led_25" element="led">
<bounds x="30" y="630" width="10" height="10" />
</bezel>
<bezel name="led_26" element="led">
<bounds x="50" y="630" width="10" height="10" />
</bezel>
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</bezel>
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</bezel>
<bezel name="led_29" element="led">
<bounds x="110" y="630" width="10" height="10" />
</bezel>
<bezel name="led_30" element="led">
<bounds x="130" y="630" width="10" height="10" />
</bezel>
<bezel name="led_31" element="led">
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</bezel>
<bezel name="led_32" element="led">
<bounds x="170" y="630" width="10" height="10" />
</bezel>
<bezel name="led_33" element="led">
<bounds x="190" y="630" width="10" height="10" />
</bezel>
<bezel name="led_34" element="led">
<bounds x="210" y="630" width="10" height="10" />
</bezel>
<bezel name="led_35" element="led">
<bounds x="230" y="630" width="10" height="10" />
</bezel>
<bezel name="led_36" element="led">
<bounds x="250" y="630" width="10" height="10" />
</bezel>
<bezel name="led_37" element="led">
<bounds x="270" y="630" width="10" height="10" />
</bezel>
<bezel name="led_38" element="led">
<bounds x="290" y="630" width="10" height="10" />
</bezel>
<bezel name="led_39" element="led">
<bounds x="310" y="630" width="10" height="10" />
</bezel>
<bezel name="led_40" element="led">
<bounds x="330" y="630" width="10" height="10" />
</bezel>
<bezel name="led_41" element="led">
<bounds x="350" y="630" width="10" height="10" />
</bezel>
<bezel name="led_42" element="led">
<bounds x="370" y="630" width="10" height="10" />
</bezel>
<bezel name="led_43" element="led">
<bounds x="390" y="630" width="10" height="10" />
</bezel>
<bezel name="led_44" element="led">
<bounds x="410" y="630" width="10" height="10" />
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<bezel name="led_45" element="led">
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</bezel>
<bezel name="led_47" element="led">
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</bezel>
</view>
</mamelayout>