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vf: Hack to get rid of the ram collisions makes things work... (nw)

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This commit is contained in:
Olivier Galibert 2019-12-22 20:19:58 +01:00
parent d495a669eb
commit 4f5a836c89
1 changed files with 6 additions and 2 deletions
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8
src/mame/machine/model1.cpp
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@ -156,13 +156,17 @@ READ32_MEMBER(model1_state::copro_ramadr_r)
WRITE32_MEMBER(model1_state::copro_ramdata_w)
{
COMBINE_DATA(&m_copro_ram_data[m_copro_ram_adr[offset >> 3] & 0x1fff]);
if(m_copro_ram_adr[offset >> 3] & 0x40000) {
COMBINE_DATA(&m_copro_ram_data[0x1000 | (m_copro_ram_adr[offset >> 3] & 0x1fff)]);
} else {
COMBINE_DATA(&m_copro_ram_data[m_copro_ram_adr[offset >> 3] & 0x1fff]);
}
m_copro_ram_adr[offset >> 3] ++;
}
READ32_MEMBER(model1_state::copro_ramdata_r)
{
u32 val = m_copro_ram_data[m_copro_ram_adr[offset >> 3] & 0x1fff];
u32 val = (m_copro_ram_adr[offset >> 3] & 0x40000) ? m_copro_ram_data[0x1000 | (m_copro_ram_adr[offset >> 3] & 0x1fff)] : m_copro_ram_data[m_copro_ram_adr[offset >> 3] & 0x1fff];
if(!machine().side_effects_disabled())
m_copro_ram_adr[offset >> 3] ++;
return val;