ocr: Mnemonic Addressing mode(s) Description AIS Immediate Add immediate value to stack pointer. CLR Direct Clear memory location. CLRA Inherent Clear accumulator. CLRH Inherent Clear extension index register H. CLRX Inherent Clear index register X. LDA Direct, Immediate, Indexed Load accumulator from memory; A€(M). ROLX Inherent Least-significant bit =- Carry bit Carry bit = most-significant bit. STA Direct, Indexed Store accumulator in memory; (M)eA STX Direct, Indexed Store index register X in memory; (M)e-X Table 4: Subset OfCPU08 instructions.