subi
Subtract immediate with overflow trap
Subtracts an immediate from $t2 into $t1 and traps if the signed result overflows.
Forms
Operands
$t1- Any general-purpose register,
$0to$31, using its numeric or named spelling, such as$8or$t0($zerois$0;$rais$31). $t2- A general-purpose register. It may be the same register as
$t1. imm- An immediate value: a signed 16-bit value (
-32768to32767) or a 32-bit value (-2147483648to4294967295). The assembler chooses a supported encoding for the value and other operands; a pseudoinstruction may expand into several instructions.
# Subtract immediate 3 from 7. Inspect $t2: 4.
li $t0, 7
subi $t2, $t0, 3