Errata Introduction to 64 Bit Intel Assembly Language Programming Ray Seyfarth

Errata for Chapter 7

• On page 63 the last line of the first paragraph in section 7.3 needs to have "and" replaced with "or" twice.
• The exclusive or table on page 64 uses ampersand.
• The line with neg near the bottom of page 66 should have not instead.
• The same line should have rbx instead or rcz in the comment.
• On page 69 the movsx does not allow an immediate 32 bit field as expected. Instead of movsz and and, use shr and shl

          mov     rax, [sample]      ; move quad-word into rax
          ror     rax, 23            ; shift to align bit 23 at 0
          shr     rax, 29            ; wipe out 29 bits               NEW INSTRUCTION
          shl     rax, 29            ; move bits back into alignment  NEW INSTRUCTION
          or      rax, [field]       ; or in the new bits
          rol     rax, 23            ; realign the bit fields
          mov     [sample], rax      ; save the field