SBI
Syntax: SBI 8bit Where 8-bit is an immediate data operand. Byte: 2byte Addressing Mode: Immediate Addressing Working: 1. 2. A= A- 8bit -b 3. 4. Flag Example: SBI 10H where [A]= 22H and [c flag]= 1 After execution of SBI 10H [A] = 11H // A= A-8bit-b => 22-10-1 =11H Program: write an ALP for subtraction of 30H value from Registers A Where A carries 44H and Cy flag carries borrow value 1. Store result at memory location 5000H. Label Mnemonics Comments Start: SBI 30H ; a= a-8bit- cy... ; A= 44- 30 -1 = 13h STA 5000H Stop: HLT Output: [5000H]= 13H
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