Introduction to 64 Bit Assembly Language Programming for Linux and OS X Ray Seyfarth

Chapter 2

• Page 14. The table for hex and binary values should have a-f rather than 10-15 in the hex column.
• Page 18. The multiplication example is missing the first row of the subproducts. It should look like:

        1010101
    x     10101
    -----------
        1010101
      1010101
    1010101
    -----------
    11011111001
  

• Page 19. Third sentence of the paragraph starting with "The fraction field" needs to have an uppercase "A".
• Page 23. The display about 1/3 way down needs adjusting so that "fraction" appears at the end of the first line of the display.

Chapter 3

• Page 32. Fourth line has 2³ which should be 2².
• Page 34. The last paragraph contains a reference to the "Size" field which no longer exists is this version of ebe. The paragraph should state the "type" has been selected as "int" which is a 4 byte integer matching the "dd" specification in the code.
• Page 35. Size is not selectable in the new ebe. The paragraph before the picture should refer to the type of d being short and the type of e being unsigned char. Remove the sentence concluding that the size of a string doesn't matter. Add a sentence before the picture will all thes variables defined: The type for a should be "unsigned char" though the program works fine with type "int".

Chapter 4

• Page 41. Insert "in" between "processes" and "Linux" in the second paragraph.
• Page 45. Exercise 6 needs to be split into 2 exercises with exercise 7 starting with "Write an assembly program ..."

Chapter 5

• Page 46. Line 6 of paragraph 1 needs the singular form of "instruction".
• Page 47. In the list of registers si needs to be on a line by itself.
• Page 48. In the first paragraph of section 5.2 there should be a period after "value".
• Page 47. 15th line from the bottom change "to lower 16 bits" to "the lower 16 bits".

Chapter 7

• Page 70. Section should be 7.2 for the and operation.

Chapter 9

• Page 112. Next to the last paragraph. Technically the reason for the use of rip relative addressing is to use less memory. By using relative addressing the offsets will fit into 32 bits which reduces space used to reference static data and code in the program. In particular a call would require more bytes of RAM if all 64 bits of the function address were included.

Chapter 11

• Page 134. Last line. There is an extraneous "AVX".
• Page 135. Third paragraph. The python ebe placed the general purpose registers and the floating point registers in one window. Replace "lower section of the registers window" with "floating point register window".

Chapter 13

• Page 156. There needs to be "xor eax, eax" before the call to printf.
• Page 163. Code needs to call fseek, not ftell.

Chapter 15

• Page 171. Code needs "xor eax, eax" before printf calls.
• Page 172. First 2 lines of hash function should be combined.
• Page 178-179. Code needs "xor eax, eax" before printf calls.

Chapter 16

• Page 187. The code in section 16.7 has some code left from an earlier version. There is no need to push/pop any registers other than rbx. This also eliminates the need for the sentence starting the final paragraph of 16.7.