Extended Mnemonics of Fixed-Point Trap Instructions

The extended mnemonics for fixed-point trap instructions incorporate the most useful TO operand values. A standard set of codes, shown in the following table, has been adopted for the most common combinations of trap conditions. These extended mnemonics are in the com assembly mode.

The POWER extended mnemonics for fixed-point trap instructions have the following format:

• txx or txxi

where xx is one of the codes specified in the preceding table.

The 64-bit PowerPC extended mnemonics for double-word, fixed-point trap instructions have the following format:

• tdxx or tdxxi

The PowerPC extended mnemonics for fixed-point trap instructions have the following formats:

• twxx or twxxi

where xx is one of the codes specified in the preceding table.

The trap instruction is an unconditional trap:

• trap

Examples

1. To trap if R10 is less than R20:

   tlt   10, 20

   This is equivalent to:

   t   16, 10, 20

2. To trap if R4 is equal to 0x10:

   teqi   4, 0x10

   This is equivalent to:

   ti   0x4, 4, 0x10

3. To trap unconditionally:

   trap

   This is equivalent to:

   tw   31, 0, 0

4. To trap if RX is not equal to RY:

   twnei   RX. RY

   This is equivalent to:

   twi   24, RX, RY

5. To trap if RX is logically greater than 0x7FF:

   twlgti   RX, 0x7FF

   This is equivalent to:

   twi   1, RX, 0x7FF

Related Information

Extended Instruction Mnemonics Overview.

Extended Mnemonics of Branch Instructions.

Extended Mnemonics of Condition Register Logical Instructions.

Extended Mnemonics of Fixed-Point Arithmetic Instructions.

Extended Mnemonics of Fixed-Point Compare Instructions.

Extended Mnemonics of Fixed-Point Load Instructions.

Extended Mnemonics of Fixed-Point Logical Instructions.

Extended Mnemonics of Moving from or to Special-Purpose Registers.

Extended Mnemonics of Fixed-Point Rotate and Shift Instructions.

The tw or t (Trap Word) instruction, twi or ti (Trap Word Immediate) instruction.