sub.w

Subtract (Wide)

SUB.W <Rd>, <Rn>, <Operand2>

Thumb-2 32-bit subtract.

Details

The Subtract instruction thumb-2 32-bit subtract.

Pseudocode Operation

Rd ← Rn - Operand2
// Flags affected: N, Z, C, V

Example

SUB.W r0, r1, r2

Encoding

Binary Layout
11101011101
S
Rn
0
imm3
Rd
imm8
 
Format Thumb2 Data Proc
Opcode 0xEBA00000
Extension T32 (Thumb2)

Operands

  • Rd
    Destination general-purpose register
  • Rn
    First source / base general-purpose register
  • Operand2
    Flexible second operand (register or shifted register)