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Fix tugboat, required full-on memory access

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This commit is contained in:
Olivier Galibert 2020-11-27 12:19:39 +01:00
parent 08effe4cc1
commit 805af5e163
1 changed files with 8 additions and 8 deletions
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16
src/mame/drivers/tugboat.cpp
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@ -42,8 +42,7 @@ public:
m_maincpu(*this, "maincpu"),
m_gfxdecode(*this, "gfxdecode"),
m_screen(*this, "screen"),
m_palette(*this, "palette"),
m_ram(*this, "ram")
m_palette(*this, "palette")
{ }
void tugboat(machine_config &config);
@ -66,7 +65,7 @@ private:
required_device<screen_device> m_screen;
required_device<palette_device> m_palette;
required_shared_ptr<uint8_t> m_ram;
memory_access<16, 0, 0, ENDIANNESS_LITTLE>::specific m_program;
uint8_t m_hd46505_0_reg[18];
uint8_t m_hd46505_1_reg[18];
@ -93,6 +92,7 @@ private:
void tugboat_state::machine_start()
{
m_interrupt_timer = timer_alloc(TIMER_INTERRUPT);
m_maincpu->space(AS_PROGRAM).specific(m_program);
save_item(NAME(m_hd46505_0_reg));
save_item(NAME(m_hd46505_1_reg));
@ -141,8 +141,8 @@ void tugboat_state::hd46505_1_w(offs_t offset, uint8_t data)
void tugboat_state::score_w(offs_t offset, uint8_t data)
{
if (offset>=0x8) m_ram[0x291d + 32*offset + 32*(1-8)] = data ^ 0x0f;
if (offset<0x8 ) m_ram[0x291d + 32*offset + 32*9] = data ^ 0x0f;
if (offset>=0x8) m_program.write_byte(0x291d + 32*offset + 32*(1-8), data ^ 0x0f);
if (offset<0x8 ) m_program.write_byte(0x291d + 32*offset + 32*9, data ^ 0x0f);
}
void tugboat_state::draw_tilemap(bitmap_ind16 &bitmap, const rectangle &cliprect,
@ -152,8 +152,8 @@ void tugboat_state::draw_tilemap(bitmap_ind16 &bitmap, const rectangle &cliprect
{
for (int x = 0; x < 32; x++)
{
int attr = m_ram[addr + 0x400];
int code = ((attr & 0x01) << 8) | m_ram[addr];
int attr = m_program.read_byte(addr + 0x400);
int code = ((attr & 0x01) << 8) | m_program.read_byte(addr);
int color = (attr & 0x3c) >> 2;
int rgn, transpen;
@ -234,7 +234,7 @@ void tugboat_state::machine_reset()
void tugboat_state::main_map(address_map &map)
{
map.global_mask(0x7fff);
map(0x0000, 0x01ff).ram().share("ram");
map(0x0000, 0x01ff).ram();
map(0x1060, 0x1061).w("aysnd", FUNC(ay8910_device::address_data_w));
map(0x10a0, 0x10a1).w(FUNC(tugboat_state::hd46505_0_w)); /* scrolling is performed changing the start_addr register (0C/0D) */
map(0x10c0, 0x10c1).w(FUNC(tugboat_state::hd46505_1_w));