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atarisy2.c: configured banking (nw)

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This commit is contained in:
Ivan Vangelista 2015-06-26 23:28:36 +02:00
parent 7a2eac723e
commit e2fd8e0690
2 changed files with 33 additions and 37 deletions
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62
src/mame/drivers/atarisy2.c
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@ -203,6 +203,9 @@ MACHINE_START_MEMBER(atarisy2_state,atarisy2)
save_item(NAME(m_p2portwr_state)); save_item(NAME(m_p2portwr_state));
save_item(NAME(m_p2portrd_state)); save_item(NAME(m_p2portrd_state));
save_item(NAME(m_sound_reset_state)); save_item(NAME(m_sound_reset_state));
m_rombank1->configure_entries(0, 64, memregion("maincpu")->base() + 0x10000, 0x2000);
m_rombank2->configure_entries(0, 64, memregion("maincpu")->base() + 0x10000, 0x2000);
} }
@ -272,44 +275,39 @@ WRITE16_MEMBER(atarisy2_state::int_enable_w)
WRITE16_MEMBER(atarisy2_state::bankselect_w) WRITE16_MEMBER(atarisy2_state::bankselect_w)
{ {
static const int bankoffset[64] = /*static const int bankoffset[64] =
{ {
0x28000, 0x20000, 0x18000, 0x10000, 12, 8, 4, 0,
0x2a000, 0x22000, 0x1a000, 0x12000, 13, 9, 5, 1,
0x2c000, 0x24000, 0x1c000, 0x14000, 14, 10, 6, 2,
0x2e000, 0x26000, 0x1e000, 0x16000, 15, 11, 7, 3,
0x48000, 0x40000, 0x38000, 0x30000, 28, 24, 20, 16,
0x4a000, 0x42000, 0x3a000, 0x32000, 29, 25, 21, 17,
0x4c000, 0x44000, 0x3c000, 0x34000, 30, 26, 22, 18,
0x4e000, 0x46000, 0x3e000, 0x36000, 31, 27, 23, 19,
0x68000, 0x60000, 0x58000, 0x50000, 44, 40, 36, 32,
0x6a000, 0x62000, 0x5a000, 0x52000, 45, 41, 37, 33,
0x6c000, 0x64000, 0x5c000, 0x54000, 46, 42, 38, 34,
0x6e000, 0x66000, 0x5e000, 0x56000, 47, 43, 39, 35,
0x88000, 0x80000, 0x78000, 0x70000, 60, 56, 52, 48,
0x8a000, 0x82000, 0x7a000, 0x72000, 61, 57, 53, 49,
0x8c000, 0x84000, 0x7c000, 0x74000, 62, 58, 54, 50,
0x8e000, 0x86000, 0x7e000, 0x76000 63, 59, 55, 51
}; };*/
int newword = m_bankselect[offset]; int banknumber = ((data >> 10) & 0x3f) ^ 0x03;
UINT8 *base; banknumber = BITSWAP16(banknumber, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 1, 0, 3, 2);
COMBINE_DATA(&newword); if (offset)
m_bankselect[offset] = newword; m_rombank2->set_entry(banknumber);
else
base = &memregion("maincpu")->base()[bankoffset[(newword >> 10) & 0x3f]]; m_rombank1->set_entry(banknumber);
memcpy(offset ? m_rombank2 : m_rombank1, base, 0x2000);
} }
void atarisy2_state::device_post_load() void atarisy2_state::device_post_load()
{ {
atarigen_state::device_post_load(); atarigen_state::device_post_load();
address_space &space = m_maincpu->space(AS_PROGRAM);
bankselect_w(space, 0, m_bankselect[0], 0xffff);
bankselect_w(space, 1, m_bankselect[1], 0xffff);
} }
@ -754,7 +752,7 @@ WRITE8_MEMBER(atarisy2_state::coincount_w)
static ADDRESS_MAP_START( main_map, AS_PROGRAM, 16, atarisy2_state ) static ADDRESS_MAP_START( main_map, AS_PROGRAM, 16, atarisy2_state )
AM_RANGE(0x0000, 0x0fff) AM_RAM AM_RANGE(0x0000, 0x0fff) AM_RAM
AM_RANGE(0x1000, 0x11ff) AM_MIRROR(0x0200) AM_RAM_WRITE(paletteram_w) AM_SHARE("paletteram") AM_RANGE(0x1000, 0x11ff) AM_MIRROR(0x0200) AM_RAM_WRITE(paletteram_w) AM_SHARE("paletteram")
AM_RANGE(0x1400, 0x1403) AM_MIRROR(0x007c) AM_READWRITE(adc_r, bankselect_w) AM_SHARE("bankselect") AM_RANGE(0x1400, 0x1403) AM_MIRROR(0x007c) AM_READWRITE(adc_r, bankselect_w)
AM_RANGE(0x1480, 0x1487) AM_MIRROR(0x0078) AM_WRITE(adc_strobe_w) AM_RANGE(0x1480, 0x1487) AM_MIRROR(0x0078) AM_WRITE(adc_strobe_w)
AM_RANGE(0x1580, 0x1581) AM_MIRROR(0x001e) AM_WRITE(int0_ack_w) AM_RANGE(0x1580, 0x1581) AM_MIRROR(0x001e) AM_WRITE(int0_ack_w)
AM_RANGE(0x15a0, 0x15a1) AM_MIRROR(0x001e) AM_WRITE(int1_ack_w) AM_RANGE(0x15a0, 0x15a1) AM_MIRROR(0x001e) AM_WRITE(int1_ack_w)
@ -767,8 +765,8 @@ static ADDRESS_MAP_START( main_map, AS_PROGRAM, 16, atarisy2_state )
AM_RANGE(0x1800, 0x1801) AM_MIRROR(0x03fe) AM_READ(switch_r) AM_WRITE(watchdog_reset16_w) AM_RANGE(0x1800, 0x1801) AM_MIRROR(0x03fe) AM_READ(switch_r) AM_WRITE(watchdog_reset16_w)
AM_RANGE(0x1c00, 0x1c01) AM_MIRROR(0x03fe) AM_READ(sound_r) AM_RANGE(0x1c00, 0x1c01) AM_MIRROR(0x03fe) AM_READ(sound_r)
AM_RANGE(0x2000, 0x3fff) AM_READWRITE(videoram_r, videoram_w) AM_RANGE(0x2000, 0x3fff) AM_READWRITE(videoram_r, videoram_w)
AM_RANGE(0x4000, 0x5fff) AM_ROM AM_SHARE("rombank1") AM_RANGE(0x4000, 0x5fff) AM_ROMBANK("rombank1")
AM_RANGE(0x6000, 0x7fff) AM_ROM AM_SHARE("rombank2") AM_RANGE(0x6000, 0x7fff) AM_ROMBANK("rombank2")
AM_RANGE(0x8000, 0x81ff) AM_READWRITE(slapstic_r, slapstic_w) AM_SHARE("slapstic_base") AM_RANGE(0x8000, 0x81ff) AM_READWRITE(slapstic_r, slapstic_w) AM_SHARE("slapstic_base")
AM_RANGE(0x8000, 0xffff) AM_ROM AM_RANGE(0x8000, 0xffff) AM_ROM
ADDRESS_MAP_END ADDRESS_MAP_END

6
src/mame/includes/atarisy2.h
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@ -21,7 +21,6 @@ public:
m_audiocpu(*this, "audiocpu"), m_audiocpu(*this, "audiocpu"),
m_mob(*this, "mob"), m_mob(*this, "mob"),
m_slapstic_base(*this, "slapstic_base"), m_slapstic_base(*this, "slapstic_base"),
m_bankselect(*this, "bankselect"),
m_playfield_tilemap(*this, "playfield"), m_playfield_tilemap(*this, "playfield"),
m_alpha_tilemap(*this, "alpha"), m_alpha_tilemap(*this, "alpha"),
m_rombank1(*this, "rombank1"), m_rombank1(*this, "rombank1"),
@ -36,7 +35,6 @@ public:
required_shared_ptr<UINT16> m_slapstic_base; required_shared_ptr<UINT16> m_slapstic_base;
UINT8 m_interrupt_enable; UINT8 m_interrupt_enable;
required_shared_ptr<UINT16> m_bankselect;
required_device<tilemap_device> m_playfield_tilemap; required_device<tilemap_device> m_playfield_tilemap;
required_device<tilemap_device> m_alpha_tilemap; required_device<tilemap_device> m_alpha_tilemap;
@ -50,8 +48,8 @@ public:
UINT8 m_p2portwr_state; UINT8 m_p2portwr_state;
UINT8 m_p2portrd_state; UINT8 m_p2portrd_state;
required_shared_ptr<UINT16> m_rombank1; required_memory_bank m_rombank1;
required_shared_ptr<UINT16> m_rombank2; required_memory_bank m_rombank2;
required_shared_ptr<UINT16> m_generic_paletteram_16; required_shared_ptr<UINT16> m_generic_paletteram_16;
required_device<atari_slapstic_device> m_slapstic; required_device<atari_slapstic_device> m_slapstic;