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-rw-r--r--src/mess/machine/md_rom.c118
1 files changed, 59 insertions, 59 deletions
diff --git a/src/mess/machine/md_rom.c b/src/mess/machine/md_rom.c
index 91e767b8921..243d3f19b83 100644
--- a/src/mess/machine/md_rom.c
+++ b/src/mess/machine/md_rom.c
@@ -1,9 +1,9 @@
/***********************************************************************************************************
-
-
+
+
MegaDrive / Genesis cart emulation
-
-
+
+
Here we emulate bankswitch / protection / NVRAM found on generic carts with no additional hardware
@@ -244,7 +244,7 @@ void md_rom_pokestad_device::device_start()
void md_rom_realtec_device::device_start()
{
- m_bank_addr = 0;
+ m_bank_addr = 0;
m_bank_size = 0;
m_old_bank_addr = -1;
save_item(NAME(m_bank_addr));
@@ -289,9 +289,9 @@ READ16_MEMBER(md_rom_sram_device::read)
if (offset >= m_nvram_start/2 && offset < m_nvram_end/2 && m_nvram_active)
return m_nvram[offset - m_nvram_start/2];
}
- if (offset < 0x400000/2)
- return m_rom[MD_ADDR(offset)];
- else
+ if (offset < 0x400000/2)
+ return m_rom[MD_ADDR(offset)];
+ else
return 0xffff;
}
@@ -329,9 +329,9 @@ READ16_MEMBER(md_rom_fram_device::read)
{
if (offset >= m_nvram_start/2 && offset < m_nvram_end/2 && m_nvram_active)
return m_nvram[offset - m_nvram_start/2];
- if (offset < 0x400000/2)
- return m_rom[MD_ADDR(offset)];
- else
+ if (offset < 0x400000/2)
+ return m_rom[MD_ADDR(offset)];
+ else
return 0xffff;
}
@@ -372,7 +372,7 @@ WRITE16_MEMBER(md_rom_ssf2_device::write_a13)
{
m_lastoff = offset;
m_lastdata = data;
- if (offset) // bank 0 is not modified
+ if (offset) // bank 0 is not modified
{
UINT16 *ROM = get_rom_base();
m_bank[offset] = data & 0xf;
@@ -430,7 +430,7 @@ READ16_MEMBER(md_rom_chinf3_device::read)
else
return m_rom[(offset & 0xffff/2) + (m_bank * 0x10000)/2];
}
-
+
// PROTECTION in 0x400000 - 0x4fffff
/* not 100% correct, there may be some relationship between the reads here
and the writes made at the start of the game.. */
@@ -485,7 +485,7 @@ READ16_MEMBER(md_rom_chinf3_device::read)
}
return 0;
}
-
+
return m_rom[offset & 0x1fffff/2];
}
@@ -512,12 +512,12 @@ WRITE16_MEMBER(md_rom_chinf3_device::write)
READ16_MEMBER(md_rom_elfwor_device::read)
{
- /* It returns (0x55 @ 0x400000 OR 0xc9 @ 0x400004) AND (0x0f @ 0x400002 OR 0x18 @ 0x400006).
+ /* It returns (0x55 @ 0x400000 OR 0xc9 @ 0x400004) AND (0x0f @ 0x400002 OR 0x18 @ 0x400006).
It is probably best to add handlers for all 4 addresses. */
- if (offset == 0x400000/2) return 0x5500;
- if (offset == 0x400002/2) return 0x0f00;
- if (offset == 0x400004/2) return 0xc900;
- if (offset == 0x400006/2) return 0x1800;
+ if (offset == 0x400000/2) return 0x5500;
+ if (offset == 0x400002/2) return 0x0f00;
+ if (offset == 0x400004/2) return 0xc900;
+ if (offset == 0x400006/2) return 0x1800;
return m_rom[MD_ADDR(offset)];
}
@@ -527,10 +527,10 @@ READ16_MEMBER(md_rom_elfwor_device::read)
READ16_MEMBER(md_rom_smouse_device::read)
{
- if (offset == 0x400000/2) return 0x5500;
- if (offset == 0x400002/2) return 0x0f00;
- if (offset == 0x400004/2) return 0xaa00;
- if (offset == 0x400006/2) return 0xf000;
+ if (offset == 0x400000/2) return 0x5500;
+ if (offset == 0x400002/2) return 0x0f00;
+ if (offset == 0x400004/2) return 0xaa00;
+ if (offset == 0x400006/2) return 0xf000;
return m_rom[MD_ADDR(offset)];
}
@@ -540,10 +540,10 @@ READ16_MEMBER(md_rom_smouse_device::read)
READ16_MEMBER(md_rom_yasech_device::read)
{
- if (offset == 0x400000/2) return 0x6300;
- if (offset == 0x400002/2) return 0x9800;
- if (offset == 0x400004/2) return 0xc900;
- if (offset == 0x400006/2) return 0x1800;
+ if (offset == 0x400000/2) return 0x6300;
+ if (offset == 0x400002/2) return 0x9800;
+ if (offset == 0x400004/2) return 0xc900;
+ if (offset == 0x400006/2) return 0x1800;
return m_rom[MD_ADDR(offset)];
}
@@ -553,12 +553,12 @@ READ16_MEMBER(md_rom_yasech_device::read)
READ16_MEMBER(md_rom_kof98_device::read)
{
- if (offset == 0x480000/2) return 0xaa00;
- if (offset == 0x4800e0/2) return 0xaa00;
- if (offset == 0x4824a0/2) return 0xaa00;
- if (offset == 0x488880/2) return 0xaa00;
- if (offset == 0x4a8820/2) return 0x0a00;
- if (offset == 0x4f8820/2) return 0x0000;
+ if (offset == 0x480000/2) return 0xaa00;
+ if (offset == 0x4800e0/2) return 0xaa00;
+ if (offset == 0x4824a0/2) return 0xaa00;
+ if (offset == 0x488880/2) return 0xaa00;
+ if (offset == 0x4a8820/2) return 0x0a00;
+ if (offset == 0x4f8820/2) return 0x0000;
return m_rom[MD_ADDR(offset)];
}
@@ -568,10 +568,10 @@ READ16_MEMBER(md_rom_kof98_device::read)
// gfx glitch with the new code... uninitialized ram somewhere?
READ16_MEMBER(md_rom_kof99_device::read_a13)
{
- if (offset == 0x00/2) return 0x00; // startup protection check, chinese message if != 0
- if (offset == 0x02/2) return 0x01; // write 02 to a13002.. shift right 1?
- if (offset == 0x3e/2) return 0x1f; // write 3e to a1303e.. shift right 1?
- else return 0xffff;
+ if (offset == 0x00/2) return 0x00; // startup protection check, chinese message if != 0
+ if (offset == 0x02/2) return 0x01; // write 02 to a13002.. shift right 1?
+ if (offset == 0x3e/2) return 0x1f; // write 3e to a1303e.. shift right 1?
+ else return 0xffff;
}
/*-------------------------------------------------
@@ -580,15 +580,15 @@ READ16_MEMBER(md_rom_kof99_device::read_a13)
READ16_MEMBER(md_rom_lion2_device::read)
{
- if (offset == 0x400002/2) return m_prot1_data;
- if (offset == 0x400006/2) return m_prot2_data;
+ if (offset == 0x400002/2) return m_prot1_data;
+ if (offset == 0x400006/2) return m_prot2_data;
return m_rom[MD_ADDR(offset)];
}
WRITE16_MEMBER(md_rom_lion2_device::write)
{
- if (offset == 0x400000/2) m_prot1_data = data;
- if (offset == 0x400004/2) m_prot2_data = data;
+ if (offset == 0x400000/2) m_prot1_data = data;
+ if (offset == 0x400004/2) m_prot2_data = data;
}
/*-------------------------------------------------
@@ -600,7 +600,7 @@ READ16_MEMBER(md_rom_lion3_device::read)
if (offset < 0x8000/2)
return m_rom[offset + (m_bank * 0x8000)/2];
else if (offset >= 0x600000/2 && offset < 0x700000/2)
- {
+ {
UINT16 retdata = 0;
switch (offset & 0x7)
{
@@ -627,14 +627,14 @@ READ16_MEMBER(md_rom_lion3_device::read)
retdata |= (BIT(m_prot_data, 0) << 7);
}
break;
-
+
default:
logerror("protection read, unknown offset %x\n", offset & 0x7);
break;
}
return retdata;
}
-
+
return m_rom[offset];
}
@@ -675,8 +675,8 @@ WRITE16_MEMBER(md_rom_lion3_device::write)
READ16_MEMBER(md_rom_mjlov_device::read)
{
- if (offset == 0x400000/2) return 0x9000;
- if (offset == 0x401000/2) return 0xd300;
+ if (offset == 0x400000/2) return 0x9000;
+ if (offset == 0x401000/2) return 0xd300;
return m_rom[MD_ADDR(offset)];
}
@@ -687,8 +687,8 @@ READ16_MEMBER(md_rom_mjlov_device::read)
READ16_MEMBER(md_rom_sbubl_device::read)
{
- if (offset == 0x400000/2) return 0x5500;
- if (offset == 0x400002/2) return 0x0f00;
+ if (offset == 0x400000/2) return 0x5500;
+ if (offset == 0x400002/2) return 0x0f00;
return m_rom[MD_ADDR(offset)];
}
@@ -698,9 +698,9 @@ READ16_MEMBER(md_rom_sbubl_device::read)
READ16_MEMBER(md_rom_soulb_device::read)
{
- if (offset == 0x400002/2) return 0x9800;
- if (offset == 0x400004/2) return 0xc900;
- if (offset == 0x400006/2) return 0xf000;
+ if (offset == 0x400002/2) return 0x9800;
+ if (offset == 0x400004/2) return 0xc900;
+ if (offset == 0x400006/2) return 0xf000;
return m_rom[MD_ADDR(offset)];
}
@@ -727,9 +727,9 @@ WRITE16_MEMBER(md_rom_pokestad_device::write)
READ16_MEMBER(md_rom_realtec_device::read)
{
- if (offset < (m_bank_size * 0x20000)) // two banks of same (variable) size at the bottom of the rom
+ if (offset < (m_bank_size * 0x20000)) // two banks of same (variable) size at the bottom of the rom
return m_rom[offset + (m_bank_addr * 0x20000)/2];
- return m_rom[(offset & 0x1fff/2) + 0x7e000/2]; // otherwise it accesses the final 8k of the image
+ return m_rom[(offset & 0x1fff/2) + 0x7e000/2]; // otherwise it accesses the final 8k of the image
}
WRITE16_MEMBER(md_rom_realtec_device::write)
@@ -757,8 +757,8 @@ WRITE16_MEMBER(md_rom_realtec_device::write)
READ16_MEMBER(md_rom_redcl_device::read)
{
- if (offset == 0x400000/2) return 0x55 << 8;
- if (offset == 0x400004/2) return -0x56 << 8;
+ if (offset == 0x400000/2) return 0x55 << 8;
+ if (offset == 0x400004/2) return -0x56 << 8;
return m_rom[MD_ADDR(offset)];
}
@@ -827,7 +827,7 @@ READ16_MEMBER(md_rom_topf_device::read)
//cpu #0 (PC=0004DE00): unmapped program memory word write to 00689B80 = 004A & 00FF
//cpu #0 (PC=0004DE08): unmapped program memory word write to 00 = 00B5 & 00FF
//cpu #0 (PC=0004DE0C): unmapped program memory word read from 00645B44 & 00FF
-
+
return 0x9f;//0x25;
}
if (offset == 0x6bd294/2)
@@ -837,7 +837,7 @@ READ16_MEMBER(md_rom_topf_device::read)
cpu #0 (PC=0017719A): unmapped program memory word write to 006BD2D2 = 0098 & 00FF
cpu #0 (PC=001771A2): unmapped program memory word read from 006BD294 & 00FF
*/
-
+
if (space.device().safe_pc()==0x1771a2) return 0x50;
else
{
@@ -875,9 +875,9 @@ WRITE16_MEMBER(md_rom_topf_device::write)
if (offset >= 0x700000/2 && offset < 0x800000/2)
{
if (data == 0x002a)
- m_bank[2] = 1; // == 0x2e*0x8000?!
+ m_bank[2] = 1; // == 0x2e*0x8000?!
else if (data==0x0035) // characters ingame
- m_bank[0] = 1; // == 0x35*0x8000
+ m_bank[0] = 1; // == 0x35*0x8000
else if (data==0x000f) // special moves
m_bank[1] = 1; // == 0xf*0x8000
else if (data==0x0000)