folkert/KEK
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

setMMR0_as_is added

Browse source
This commit is contained in:
folkert van heusden 2024-05-09 18:11:30 +02:00
parent 5b10468b8e
commit 8b03af0372
Signed by untrusted user who does not match committer: folkert
GPG key ID: 6B6455EDFEED3BD1
2 changed files with 9 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
mmu.cpp
View file

@ -48,6 +48,11 @@ uint16_t mmu::read_par(const uint32_t a, const int run_mode)
return t; return t;
} }
void mmu::setMMR0_as_is(uint16_t value)
{
MMR0 = value;
}
void mmu::setMMR0(uint16_t value) void mmu::setMMR0(uint16_t value)
{ {
value &= ~(3 << 10); // bit 10 & 11 always read as 0 value &= ~(3 << 10); // bit 10 & 11 always read as 0
@ -350,7 +355,7 @@ uint32_t mmu::calculate_physical_address(cpu *const c, const int run_mode, const
temp |= d << 4; temp |= d << 4;
setMMR0(temp); setMMR0_as_is(temp);
TRACE("MMR0: %06o", temp); TRACE("MMR0: %06o", temp);
} }
@ -389,7 +394,7 @@ uint32_t mmu::calculate_physical_address(cpu *const c, const int run_mode, const
temp &= ~(3 << 5); temp &= ~(3 << 5);
temp |= run_mode << 5; temp |= run_mode << 5;
setMMR0(temp); setMMR0_as_is(temp);
} }
if (is_write) if (is_write)
@ -427,7 +432,7 @@ uint32_t mmu::calculate_physical_address(cpu *const c, const int run_mode, const
temp &= ~(1 << 4); temp &= ~(1 << 4);
temp |= d << 4; temp |= d << 4;
setMMR0(temp); setMMR0_as_is(temp);
} }
if (is_write) if (is_write)

1
mmu.h
View file

@ -99,6 +99,7 @@ public:
uint16_t getMMR3() const { return MMR3; } uint16_t getMMR3() const { return MMR3; }
uint16_t getMMR(int nr) const { const uint16_t *const mmrs[] { &MMR0, &MMR1, &MMR2, &MMR3 }; return *mmrs[nr]; } uint16_t getMMR(int nr) const { const uint16_t *const mmrs[] { &MMR0, &MMR1, &MMR2, &MMR3 }; return *mmrs[nr]; }
void setMMR0_as_is(uint16_t value);
void setMMR0(const uint16_t value); void setMMR0(const uint16_t value);
void setMMR1(const uint16_t value); void setMMR1(const uint16_t value);
void setMMR2(const uint16_t value); void setMMR2(const uint16_t value);