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test: PDF洗MD v3 — 截图增强版（12页测试）

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3_Table21_Cortex-M4_instructions_p52.md
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来源：PM0214 Rev 10，Page 52
# Table 21. Cortex-M4 Instructions (continued)
> 指令汇总表，续前页。
| Mnemonic | Operands | Brief description | Flags | Page |
|----------|----------|-------------------|-------|------|
| LDREXB | Rt, [Rn] | Load register exclusive with byte | — | 3.4.8 on page 79 |
| LDREXH | Rt, [Rn] | Load register exclusive with halfword | — | 3.4.8 on page 79 |
| LDRH, LDRHT | Rt, [Rn, #offset] | Load register with halfword | — | 3.4 on page 69 |
| LDRSB, LDRSBT | Rt, [Rn, #offset] | Load register with signed byte | — | 3.4 on page 69 |
| LDRSH, LDRSHT | Rt, [Rn, #offset] | Load register with signed halfword | — | 3.4 on page 69 |
| LDRT | Rt, [Rn, #offset] | Load register with word | — | 3.4 on page 69 |
| LSL, LSLS | Rd, Rm, <Rs\|#n> | Logical shift left | N,Z,C | 3.5.3 on page 86 |
| LSR, LSRS | Rd, Rm, <Rs\|#n> | Logical shift right | N,Z,C | 3.5.3 on page 86 |
| MLA | Rd, Rn, Rm, Ra | Multiply with accumulate, 32-bit result | — | 3.6.1 on page 110 |
| MLS | Rd, Rn, Rm, Ra | Multiply and subtract, 32-bit result | — | 3.6.1 on page 110 |
| MOV, MOVS | Rd, Op2 | Move | N,Z,C | 3.5.6 on page 89 |
| MOVT | Rd, #imm16 | Move top | — | 3.5.7 on page 91 |
| MOVW, MOV | Rd, #imm16 | Move 16-bit constant | N,Z,C | 3.5.6 on page 89 |
| MRS | Rd, spec_reg | Move from special register to general register | — | 3.11.6 on page 186 |
| MSR | spec_reg, Rm | Move from general register to special register | N,Z,C,V | 3.11.7 on page 187 |
| MUL, MULS | {Rd,} Rn, Rm | Multiply, 32-bit result | N,Z | 3.6.1 on page 110 |
| MVN, MVNS | Rd, Op2 | Move NOT | N,Z,C | 3.5.6 on page 89 |
| NOP | — | No operation | — | 3.11.8 on page 188 |
| ORN, ORNS | {Rd,} Rn, Op2 | Logical OR NOT | N,Z,C | 3.5.2 on page 85 |
| ORR, ORRS | {Rd,} Rn, Op2 | Logical OR | N,Z,C | 3.5.2 on page 85 |
| PKHTB, PKHBT | {Rd,} Rn, Rm, Op2 | Pack Halfword | — | 3.8.1 on page 135 |
| POP | reglist | Pop registers from stack | — | 3.4.7 on page 78 |
| PUSH | reglist | Push registers onto stack | — | 3.4.7 on page 78 |
| QADD | {Rd,} Rn, Rm | Saturating double and add | — | 3.7.3 on page 128 |
| QADD16 | {Rd,} Rn, Rm | Saturating add 16 | — | 3.7.3 on page 128 |
| QADD8 | {Rd,} Rn, Rm | Saturating add 8 | — | 3.7.3 on page 128 |
| QASX | {Rd,} Rn, Rm | Saturating add and subtract with exchange | — | 3.7.4 on page 129 |
> 原始截图：imgs/page_52.png（无图则注明无图）