Fixed-point compare instructions

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The fixed-point compare instructions algebraically or logically compare the contents of register RA.

The fixed-point compare instructions algebraically or logically compare the contents of register RA with one of the following:

  • The sign-extended value of the SI field
  • The UI field
  • The contents of register RB

Algebraic comparison compares two signed integers. Logical comparison compares two unsigned integers.

There are different input operand formats for POWER® family and PowerPC®, for example, the L operand for PowerPC®. There are also invalid instruction form restrictions for PowerPC®. The assembler checks for invalid instruction forms in PowerPC® assembly modes.

Extended mnemonics for fixed-point compare instructions are discussed in Extended mnemonics of fixed-point arithmetic instructions.