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Replace legacy TMS9980 implementation with modern version. [Michael

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Zapf]
This commit is contained in:
Michael Zapf 2013-10-20 10:38:52 +00:00
parent 19587439de
commit 289d90fefa
2 changed files with 45 additions and 19 deletions
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23
src/mame/drivers/supertnk.c
View File

@ -96,7 +96,7 @@ CRU lines:
#include "emu.h"
#include "cpu/tms9900/tms9900l.h"
#include "cpu/tms9900/tms9980a.h"
#include "sound/ay8910.h"
@ -172,14 +172,13 @@ WRITE8_MEMBER(supertnk_state::supertnk_bankswitch_1_w)
INTERRUPT_GEN_MEMBER(supertnk_state::supertnk_interrupt)
{
/* On a TMS9980, a 6 on the interrupt bus means a level 4 interrupt */
device.execute().set_input_line_and_vector(0, ASSERT_LINE, 6);
m_maincpu->set_input_line(INT_9980A_LEVEL4, ASSERT_LINE);
}
WRITE8_MEMBER(supertnk_state::supertnk_interrupt_ack_w)
{
m_maincpu->set_input_line(0, CLEAR_LINE);
m_maincpu->set_input_line(INT_9980A_LEVEL4, CLEAR_LINE);
}
@ -416,6 +415,18 @@ static INPUT_PORTS_START( supertnk )
INPUT_PORTS_END
/************
CPU config
*************/
static TMS9980A_CONFIG( cpuconf )
{
DEVCB_NULL, // External operation
DEVCB_NULL, // Instruction acquisition
DEVCB_NULL, // Clock out
DEVCB_NULL, // Hold acknowledge
DEVCB_NULL // DBIN
};
/*************************************
*
@ -426,9 +437,7 @@ INPUT_PORTS_END
static MACHINE_CONFIG_START( supertnk, supertnk_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", TMS9980L, 2598750) /* ? to which frequency is the 20.79 Mhz crystal mapped down? */
MCFG_CPU_PROGRAM_MAP(supertnk_map)
MCFG_CPU_IO_MAP(supertnk_io_map)
MCFG_TMS99xx_ADD("maincpu", TMS9980A, 2598750, supertnk_map, supertnk_io_map, cpuconf)
MCFG_CPU_VBLANK_INT_DRIVER("screen", supertnk_state, supertnk_interrupt)

41
src/mame/drivers/tmspoker.c
View File

@ -209,7 +209,7 @@
#define MASTER_CLOCK XTAL_6MHz /* confirmed */
#include "emu.h"
#include "cpu/tms9900/tms9900l.h"
#include "cpu/tms9900/tms9980a.h"
#include "video/mc6845.h"
#include "sound/sn76477.h"
@ -290,7 +290,8 @@ void tmspoker_state::palette_init()
INTERRUPT_GEN_MEMBER(tmspoker_state::tmspoker_interrupt)
{
device.execute().set_input_line_and_vector(0, ASSERT_LINE, 3);//2=nmi 3,4,5,6
m_maincpu->set_input_line(INT_9980A_LEVEL1, ASSERT_LINE); //_and_vector(0, ASSERT_LINE, 3);//2=nmi 3,4,5,6
m_maincpu->set_input_line(INT_9980A_LEVEL1, CLEAR_LINE); // MZ: do we need this?
}
@ -560,6 +561,17 @@ static MC6845_INTERFACE( mc6845_intf )
NULL /* update address callback */
};
/***********************
* CPU Interface *
************************/
static TMS9980A_CONFIG( cpuconf )
{
DEVCB_NULL, // External operation
DEVCB_NULL, // Instruction acquisition
DEVCB_NULL, // Clock out
DEVCB_NULL, // Hold acknowledge
DEVCB_NULL // DBIN
};
/*************************
* Machine Drivers *
@ -568,9 +580,7 @@ static MC6845_INTERFACE( mc6845_intf )
static MACHINE_CONFIG_START( tmspoker, tmspoker_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", TMS9980L, MASTER_CLOCK/4) /* guess */
MCFG_CPU_PROGRAM_MAP(tmspoker_map)
MCFG_CPU_IO_MAP(tmspoker_cru_map)
MCFG_TMS99xx_ADD("maincpu", TMS9980A, MASTER_CLOCK/4, tmspoker_map, tmspoker_cru_map, cpuconf)
MCFG_CPU_VBLANK_INT_DRIVER("screen", tmspoker_state, tmspoker_interrupt)
// MCFG_NVRAM_HANDLER(generic_0fill)
@ -599,6 +609,7 @@ MACHINE_CONFIG_END
ROM_START( tmspoker )
ROM_REGION( 0x4000, "maincpu", 0 ) /* TMS9980 selectable code */
ROM_LOAD( "0.bin", 0x0000, 0x1000, CRC(a20ae6cb) SHA1(d47780119b4ebb16dc759a50dfc880ddbc6a1112) ) /* Program 1 */
ROM_LOAD( "8.bin", 0x1000, 0x1000, CRC(0c0a7159) SHA1(92cc3dc32a5bf4a7fa197e72c3931e583c96ef33) ) /* Program 2 */
@ -617,14 +628,20 @@ ROM_END
DRIVER_INIT_MEMBER(tmspoker_state,bus)
{
/* decode the TMS9980 ROMs */
offs_t offs;
UINT8 *rom = memregion("maincpu")->base();
const size_t len = memregion("maincpu")->bytes();
for (offs = 0; offs < len; offs++)
{
rom[offs] = BITSWAP8(rom[offs],0,1,2,3,4,5,6,7);
}
// MZ: Does not make sense to swap the bit order, so I commented it out.
// Only when unswapped do the commands make sense; otherwise there is a lot
// of invalid opcodes, and the RESET vector at 0000 is invalid either.
/* offs_t offs;
UINT8 *rom = memregion("maincpu")->base();
const size_t len = memregion("maincpu")->bytes();
for (offs = 0; offs < len; offs++)
{
rom[offs] = BITSWAP8(rom[offs],0,1,2,3,4,5,6,7);
}
*/
/* still need to decode the addressing lines */
/* text found in the ROM (A at 6, B at 8, etc: consistent with gfx rom byte offsets) suggests