< Embedded Systems
| Instruction | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ADC | Cond | 0 | 0 | I | 0 | 1 | 0 | 1 | S | Rn | Rd | shifter operand | ||||||||||||||||||||
| ADD | Cond | 0 | 0 | I | 0 | 1 | 0 | 0 | S | Rn | Rd | shifter operand | ||||||||||||||||||||
| AND | Cond | 0 | 0 | I | 0 | 0 | 0 | 0 | S | Rn | Rd | shifter operand | ||||||||||||||||||||
| B, BL | Cond | 1 | 0 | 1 | L | signed_immed_24 | ||||||||||||||||||||||||||
| BIC | Cond | 0 | 0 | I | 1 | 1 | 1 | 0 | S | Rn | Rd | shifter operand | ||||||||||||||||||||
| BKPT | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | immed | 0 | 1 | 1 | 1 | immed | ||||||||||||||
| BLX (1) | 1 | 1 | 1 | 1 | 1 | 0 | 1 | H | signed_immed_24 | |||||||||||||||||||||||
| BLX (2) | Cond | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | SBO | SBO | SBO | 0 | 0 | 1 | 1 | Rm | |||||||||||||||
| BX | Cond | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | SBO | SBO | SBO | 0 | 0 | 0 | 1 | Rm | |||||||||||||||
| CDP | Cond | 1 | 1 | 1 | 0 | opcode_1 | CRn | CRd | cp_num | opcode_2 | 0 | CRm | ||||||||||||||||||||
| CLZ | Cond | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | SBO | Rd | SBO | 0 | 0 | 0 | 1 | Rm | |||||||||||||||
| CMN | Cond | 0 | 0 | I | 1 | 0 | 1 | 1 | S | Rn | SBZ | shifter operand | ||||||||||||||||||||
| CMP | Cond | 0 | 0 | I | 1 | 0 | 1 | 0 | S | Rn | SBZ | shifter operand | ||||||||||||||||||||
| LDC | Cond | 1 | 1 | 0 | P | U | N | W | 1 | Rn | CRd | cp_num | 8_bit_word_offset | |||||||||||||||||||
| LDM (1) | Cond | 1 | 0 | 0 | P | U | 0 | W | 1 | Rn | register_list | |||||||||||||||||||||
| LDM (2) | Cond | 1 | 0 | 0 | P | U | 1 | 0 | 1 | Rn | 0 | register_list | ||||||||||||||||||||
| LDM (3) | Cond | 1 | 0 | 0 | P | U | 1 | W | 1 | Rn | 1 | register_list | ||||||||||||||||||||
| LDR | Cond | 0 | 1 | I | P | U | 0 | W | 1 | Rn | Rd | addr_mode | ||||||||||||||||||||
We go into more detail on how to use ARM assembly language in ARM Microprocessors.
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