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Adding the LDA

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This commit is contained in:
AnonymusRaccoon
2020-02-13 15:50:14 +01:00
parent 8cc87d0be2
commit 7e97a9466c
4 changed files with 125 additions and 2 deletions
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sources/CPU/CPU.cpp
+16
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@@ -249,6 +249,22 @@ namespace ComSquare::CPU
case Instructions::STZ_ABSX: this->STX(this->_getAbsoluteIndexedByXAddr()); return 3 + !this->_registers.p.m + this->_registers.dl != 0;
case Instructions::STZ_DPX: this->STX(this->_getDirectIndexedByXAddr()); return 4 + !this->_registers.p.m + this->_registers.dl != 0;
case Instructions::LDA_IM: this->LDA(this->_getImmediateAddr()); return 2 + !this->_registers.p.m;
case Instructions::LDA_ABS: this->LDA(this->_getAbsoluteAddr()); return 4 + !this->_registers.p.m;
case Instructions::LDA_ABSl: this->LDA(this->_getAbsoluteLongAddr()); return 5 + !this->_registers.p.m;
case Instructions::LDA_DP: this->LDA(this->_getDirectAddr()); return 3 + !this->_registers.p.m + this->_registers.dl != 0;
case Instructions::LDA_DPi: this->LDA(this->_getDirectIndirectAddr()); return 5 + !this->_registers.p.m + this->_registers.dl != 0;
case Instructions::LDA_DPil: this->LDA(this->_getDirectIndirectLongAddr()); return 6 + !this->_registers.p.m + this->_registers.dl != 0;
case Instructions::LDA_ABSX: this->LDA(this->_getAbsoluteIndexedByXAddr()); return 4 + !this->_registers.p.m + this->_hasIndexCrossedPageBoundary;
case Instructions::LDA_ABSXl:this->LDA(this->_getAbsoluteIndexedByXLongAddr()); return 5 + !this->_registers.p.m;
case Instructions::LDA_ABSY: this->LDA(this->_getAbsoluteIndexedByYAddr()); return 4 + !this->_registers.p.m + this->_hasIndexCrossedPageBoundary;
case Instructions::LDA_DPX: this->LDA(this->_getDirectIndexedByXAddr()); return 4 + !this->_registers.p.m + this->_registers.dl != 0;
case Instructions::LDA_DPXi: this->LDA(this->_getDirectIndirectIndexedXAddr()); return 6 + !this->_registers.p.m + this->_registers.dl != 0;
case Instructions::LDA_DPYi: this->LDA(this->_getDirectIndirectIndexedYAddr()); return 5 + !this->_registers.p.m + this->_registers.dl != 0 + this->_hasIndexCrossedPageBoundary;
case Instructions::LDA_DPYil:this->LDA(this->_getDirectIndirectIndexedYLongAddr()); return 6 + !this->_registers.p.m + this->_registers.dl != 0;
case Instructions::LDA_SR: this->LDA(this->_getStackRelativeAddr()); return 4 + !this->_registers.p.m;
case Instructions::LDA_SRYi: this->LDA(this->_getStackRelativeIndirectIndexedYAddr()); return 7 + !this->_registers.p.m;
default:
throw InvalidOpcode("CPU", opcode);
}