Opcode Instruction Clocks Description 0C ib OR AL,imm8 2 OR immediate byte to AL 0D iw OR AX,imm16 2 OR immediate word to AX 0D id OR EAX,imm32 2 OR immediate dword to EAX 80 /1 ib OR r/m8,imm8 2/7 OR immediate byte to r/m byte 81 /1 iw OR r/m16,imm16 2/7 OR immediate word to r/m word 81 /1 id OR r/m32,imm32 2/7 OR immediate dword to r/m dword 83 /1 ib OR r/m16,imm8 2/7 OR sign-extended immediate byte with r/m word 83 /1 ib OR r/m32,imm8 2/7 OR sign-extended immediate byte with r/m dword 08 /r OR r/m8,r8 2/6 OR byte register to r/m byte 09 /r OR r/m16,r16 2/6 OR word register to r/m word 09 /r OR r/m32,r32 2/6 OR dword register to r/m dword 0A /r OR r8,r/m8 2/7 OR byte register to r/m byte 0B /r OR r16,r/m16 2/7 OR word register to r/m word 0B /r OR r32,r/m32 2/7 OR dword register to r/m dword
DEST := DEST OR SRC; CF := 0; OF := 0
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Chapter 17 -- 80386 Instruction Set
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