tabortdci

Transaction Abort Doubleword Conditional Immediate

tabortdci TO, RA, SI

Aborts transaction if doubleword condition (Immediate) is met.

Encoding

Binary Layout

31

0:5

TO

6:10

RA

11:15

SI

16:20

814

21:30

1

31

 

Format X-form

Opcode 0x7C00065D

Extension Transactional Memory

Operands

• TO
  Options
• RA
  Src
• SI
  Immediate

Example

tabortdci 4, r4, 16

Registers Altered

CR, MSR

Related

More in Transactional Memory

Reference

View in PowerISA v3.1C Specification ↗ OPF Power ISA v3.1C

Description

Transaction Abort Doubleword Conditional Immediate. Aborts the current transaction if the condition formed by TO and the 64-bit comparison of RA with the sign-extended immediate SI is true.

Operation

if Transactional() then
  if TO_condition_64(TO, RA, EXTS(SI)) then
    Abort_Transaction(cause=Explicit)

Programming Note

Use tabortdci to conditionally abort a transaction based on a comparison between a register and an immediate value. Ensure the transaction is active; otherwise, the instruction has no effect. Be cautious with TO conditions to avoid unintended transaction aborts.