x64 Assembly Language Step-by-Step

and Tables 251 Bits Is Bits (and Bytes Is Bits) 251 Shifting Bits 258 Bit-Bashing in Action 262 Flags, Tests, and Branches 270 X64 Long Mode Memory Addressing in Detail 279 Character Table Translation 290 Tables Instead of Calculations 298 Chapter 10 Dividing and Conquering 299 Boxes within Boxes 300 Calling and Returning 309 Local Labels and the Lengths of Jumps 325 Building External Procedure Libraries 330 The Art of Crafting Procedures 352 Simple Cursor Control in the Linux Console 356 Creating and Using Macros 364 Chapter 11 Strings and Things 377 The Notion of an Assembly Language String 378 REP STOSB, the Software Machine Gun 387 The Semiautomatic Weapon: STOSB Without REP 392 MOVSB: Fast Block Copies 397 Storing Data to Discontinuous Strings 402 Command-Line Arguments, String Searches, and the Linux Stack 408 The Stack, Its Structure, and How to Use It 414 Chapter 12 Heading Out to C 423 What's GNU? 424 Linking to the Standard C Library 429 Formatted Text Output with printf() 438 Data In with fgets() and scanf() 442 Be a Linux Time Lord 448 Understanding AT&T Instruction Mnemonics 456 Generating Random Numbers 460 How C Sees Command-Line Arguments 472 Simple File I/O 474 Conclusion: Not the End, But Only the Beginning 489 Appendix A The Return of the Insight Debugger 493 Insight's Shortcomings 494 Opening a Program Under Insight 495 Setting Command-Line Arguments with Insight 496 Running and Stepping a Program 496 The Memory Window 497 Showing the Stack in Insight's Memory View 498 Examining the Stack with Insight's Memory View 498 Learn gdb! 500 Appendix B Partial x64 Instruction Reference 501 What's Been Removed from x64 502 Flag Results 502 Size Specifiers 503 Instruction Index 505 ADC: Arithmetic Addition with Carry 507 ADD: Arithmetic Addition 509 AND: Logical AND 511 BT: Bit Test 513 CALL: Call Procedure 515 CLC: Clear Carry Flag (CF) 517 CLD: Clear Direction Flag (DF) 518 CMP: Arithmetic Comparison 519 DEC: Decrement Operand 521 DIV: Unsigned Integer Division 522 INC: Increment Operand 524 J??: Jump If Condition Is Met 525 JECXZ: Jump if ECX=0 527 JRCXZ: Jump If RCX=0 528 JMP: Unconditional Jump 529 LEA: Load Effective Address 531 LOOP: Loop Until CX/ECX/RCX=0 532 LOOPNZ/LOOPNE: Loop Until CX/ECX/RCX=0 and ZF=0 534 LOOPZ/LOOPE: Loop Until CX/ECX/RCX=0 and ZF=1 535 MOV: Copy Right Operand into Left Operand 536 MOVS: Move String 538 MOVSX: Copy with Sign Extension 540 MUL: Unsigned Integer Multiplication 542 NEG: Negate (Two's Complement; i.e., Multiply by .1) 544 NOP: No Operation 546 NOT: Logical NOT (One's Complement) 547 OR: Logical OR 548 POP: Copy Top of Stack into Operand 550 POPF/D/Q: Copy Top of Stack into Flags Register 552 PUSH: Push Operand onto Top of Stack 553 PUSHF/D/Q: Push Flags Onto the Stack 555 RET: Return from Procedure 556 ROL/ROR: Rotate Left/Rotate Right 558 SBB: Arithmetic Subtraction with Borrow 560 SHL/SHR: Shift Left/Shift Right 562 STC: Set Carry Flag (CF) 564 STD: Set Direction Flag (DF) 565 STOS/B/W/D/Q: Store String 566 SUB: Arithmetic Subtraction 568 SYSCALL: Fast System Call into Linux 570 XCHG: Exchange Operands 571 XLAT: Translate Byte Via Table 572 XOR: Exclusive OR 573 Appendix C Character Set Charts 575 Index 579