Test instruction in 8086

test assembly call
logical instructions of 8086
test instruction intel x86
test eax 81010100htest instruction examples
test ebx ebx
difference between and and test instruction in 8086
test eax eax js

Opcode Instruction Clocks Description A8 ib TEST AL,imm8 2 AND immediate byte with AL A9 iw TEST AX,imm16 2 AND immediate word with AX A9 id TESTTEST (x86 instruction) In the x86 assembly language, the TEST instruction performs a bitwise AND on two operands. The flags SF , ZF , PF are modified while the result of the AND is discarded. The OF and CF flags are set to 0 , while AF flag is undefined. 16 Nov 2017 Logical instructions in assembly language for 8086 processor. Instructions covered are AND, OR, XOR, NOT and Test instruction. Effect on When two operands are required for an instruction they are separated by comma. STOSW. SUB. TEST. XCHG. XLATB. XOR. Page 1 of 53. 8086 instructions According to the x86 Instruction Set Reference entry for TEST found at [TEST] computes the bit-wise logical AND of first operand (source 1 22 May 2017 A test performs an AND without modifying the operands (it only modifies some flags, like ZF et al). A je simply tests ZF (the zero flag) and jumps if set. So Test 6 Dec 2013 Opcode, Mnemonic, Description. A8 ib, TEST AL,imm8, AND imm8 with AL; set SF, ZF, PF according to result. A9 iw, TEST AX,imm16, AND imm16 with AX; set Opcode, Instruction, Op/En, 64-bit Mode, Compat/Leg Mode, Description. 0F B3 /r, BTR r/m16, r16, MR, Valid, Valid, Store selected bit in CF flag and clear. The processor instruction set provides the instructions AND, OR, XOR, TEST, and NOT Boolean logic, which tests, sets, and clears the bits according to the need