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APU's start boot is working !

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This commit is contained in:
Melefo
2020-04-09 17:29:39 +02:00
parent 63917b3d49
commit 62daa00390
5 changed files with 78 additions and 77 deletions
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52
sources/APU/Instructions/ProgramFlow.cpp
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@@ -6,109 +6,107 @@
namespace ComSquare::APU
{
int APU::BRA()
int APU::BRA(int8_t offset)
{
int8_t offset = this->_getImmediateData();
this->_internalRegisters.pc += offset;
return 4;
}
int APU::BEQ()
int APU::BEQ(int8_t offset)
{
if (!this->_internalRegisters.z)
return 2;
this->BRA();
this->BRA(offset);
return 4;
}
int APU::BNE()
int APU::BNE(int8_t offset)
{
if (this->_internalRegisters.z)
return 2;
this->BRA();
this->BRA(offset);
return 4;
}
int APU::BCS()
int APU::BCS(int8_t offset)
{
if (!this->_internalRegisters.c)
return 2;
this->BRA();
this->BRA(offset);
return 4;
}
int APU::BCC()
int APU::BCC(int8_t offset)
{
if (this->_internalRegisters.c)
return 2;
this->BRA();
this->BRA(offset);
return 4;
}
int APU::BVS()
int APU::BVS(int8_t offset)
{
if (!this->_internalRegisters.v)
return 2;
this->BRA();
this->BRA(offset);
return 4;
}
int APU::BVC()
int APU::BVC(int8_t offset)
{
if (this->_internalRegisters.v)
return 2;
this->BRA();
this->BRA(offset);
return 4;
}
int APU::BMI()
int APU::BMI(int8_t offset)
{
if (!this->_internalRegisters.n)
return 2;
this->BRA();
this->BRA(offset);
return 4;
}
int APU::BPL()
int APU::BPL(int8_t offset)
{
if (this->_internalRegisters.n)
return 2;
this->BRA();
this->BRA(offset);
return 4;
}
int APU::BBS(uint24_t addr, uint8_t bit)
int APU::BBS(uint24_t addr, uint8_t bit, int8_t offset)
{
uint8_t data = this->_internalRead(addr);
if (!(data & (1u << bit)))
return 5;
this->BRA();
this->BRA(offset);
return 7;
}
int APU::BBC(uint24_t addr, uint8_t bit)
int APU::BBC(uint24_t addr, uint8_t bit, int8_t offset)
{
uint8_t data = this->_internalRead(addr);
if (data & (1u << bit))
return 5;
this->BRA();
this->BRA(offset);
return 7;
}
int APU::CBNE(uint24_t addr, bool by_x)
int APU::CBNE(uint24_t addr, int8_t offset, bool by_x)
{
uint8_t data = this->_internalRead(addr);
if (this->_internalRegisters.a == data)
return 5 + by_x;
this->BRA();
this->BRA(offset);
return 7 + by_x;
}
int APU::DBNZ(bool direct_addr)
int APU::DBNZ(int8_t offset, bool direct_addr)
{
uint8_t data;
@@ -122,7 +120,7 @@ namespace ComSquare::APU
data = --this->_internalRegisters.y;
if (!data)
return 4 + direct_addr;
this->BRA();
this->BRA(offset);
return 6 + direct_addr;
}