Instruction Descriptions 4–37
4.4.13 Longword Subtract
Format:
Operation:
Rc ← SEXT ((Rav - Rbv)<31:0>)
Exceptions:
Instruction mnemonics:
Qualifiers:
Description:
Register Rb or a literal is subtracted from register Ra and the sign-extended 32-bit difference is
written to Rc.
The high 32 bits of Ra and Rb are ignored. Rc is a proper sign extension of the truncated 32-bit
difference. Overflow detection is based on the longword difference Rav<31:0> – Rbv<31:0>.
SUBL Ra.rl,Rb.rl,Rc.wq
!Operate format
SUBL Ra.rl,#b.ib,Rc.wq
!Operate format
Integer Overflow
SUBL Subtract Longword
Integer Overflow Enable (/V)