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(MESS) to8/to8d: Fixed support for 256K RAM; should hopefully fix MT#5160. (nw)

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This commit is contained in:
Wilbert Pol 2013-05-22 19:13:53 +00:00
parent 984fe9b663
commit c6f2743b2c
2 changed files with 12 additions and 4 deletions
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10
src/mess/machine/thomson.c
View File

@ -4110,7 +4110,15 @@ MACHINE_START_MEMBER( thomson_state, to8 )
m_thom_cart_bank = 0;
m_thom_vram = ram;
membank( THOM_CART_BANK )->configure_entries( 0, 8, mem + 0x10000, 0x4000 );
membank( THOM_CART_BANK )->configure_entries( 8, 32, ram, 0x4000 );
if ( m_ram->size() == 256*1024 )
{
membank( THOM_CART_BANK )->configure_entries( 8, 16, ram, 0x4000 );
membank( THOM_CART_BANK )->configure_entries( 8+16, 16, ram, 0x4000 );
}
else
{
membank( THOM_CART_BANK )->configure_entries( 8, 32, ram, 0x4000 );
}
membank( THOM_VRAM_BANK )->configure_entries( 0, 2, ram, 0x2000 );
membank( TO8_SYS_LO )->configure_entry( 0, ram + 0x6000);
membank( TO8_SYS_HI )->configure_entry( 0, ram + 0x4000);

6
src/mess/video/thomson.c
View File

@ -1192,7 +1192,7 @@ WRITE8_MEMBER( thomson_state::to8_sys_hi_w )
WRITE8_MEMBER( thomson_state::to8_data_lo_w )
{
UINT8* dst = m_thom_vram + offset + 0x4000 * m_to8_data_vpage + 0x2000;
UINT8* dst = m_thom_vram + ( ( offset + 0x4000 * m_to8_data_vpage + 0x2000 ) & m_ram->mask() );
assert( offset < 0x2000 );
if ( *dst == data )
return;
@ -1207,7 +1207,7 @@ WRITE8_MEMBER( thomson_state::to8_data_lo_w )
WRITE8_MEMBER( thomson_state::to8_data_hi_w )
{
UINT8* dst = m_thom_vram + offset + 0x4000 * m_to8_data_vpage;
UINT8* dst = m_thom_vram + ( ( offset + 0x4000 * m_to8_data_vpage ) & m_ram->mask() );
assert( offset < 0x2000 );
if ( *dst == data )
return;
@ -1223,7 +1223,7 @@ WRITE8_MEMBER( thomson_state::to8_data_hi_w )
/* write to video memory page through cartridge addresses space */
WRITE8_MEMBER( thomson_state::to8_vcart_w )
{
UINT8* dst = m_thom_vram + offset + 0x4000 * m_to8_cart_vpage;
UINT8* dst = m_thom_vram + ( ( offset + 0x4000 * m_to8_cart_vpage ) & m_ram->mask() );
assert( offset < 0x4000 );
if ( *dst == data )
return;