[NSIS] IntOp이용한 산술연산(사칙연산etc) 계산하기

[NSIS] IntOp이용한 산술연산(사칙연산etc) 계산하기

Writer: http://ospace.tistory.com/(ospace114@empal.com) 2008.09.02

user_var(output) value1 OP [value2]

Combines value1 and (depending on OP) value2 into the specified user variable (user_var). OP is defined as one of the following:

• + ADDs value1 and value2
• - SUBTRACTs value2 from value1
• * MULTIPLIEs value1 and value2
• / DIVIDEs value1 by value2
• % MODULUSs value1 by value2
• | BINARY ORs value1 and value2
• & BINARY ANDs value1 and value2
• ^ BINARY XORs value1 and value2
• >> RIGHT SHIFTs value1 by value2
• << LEFT SHIFTs value1 by value2
• ~ BITWISE NEGATEs value1 (i.e. 7 becomes 4294967288)
• ! LOGICALLY NEGATEs value1 (i.e. 7 becomes 0)
• || LOGICALLY ORs value1 and value2
• && LOGICALLY ANDs value1 and value2

IntOp $0 1 + 1
IntOp $0 $0 + 1
IntOp $0 $0 << 2
IntOp $0 $0 ~
IntOp $0 $0 & 0xF