Reporting small documentation error in Softwate Development Manual Volume 2B

[nickbell]

Hi,

I could not find some email or support form to send this report - so I'm posting it here:

A small document error in:

Intel® 64 and IA-32 Architectures
Software Developer’s Manual
Volume 2B:
Instruction Set Reference, M-U 

(253667-087-sdm-vol-2b)

The error:

The section for opcodes for SCAS - the title is missing the SCASQ despite this opcode it is present in the table below this title.

Original text is "SCAS/SCASB/SCASW/SCASD—Scan String" (SCASQ missing).

I know it is minor but for the sake of completeness :-).

[VonM_Intel]

Hi nickbell,

Thank you for posting in our Community. To assist us in forwarding this to the appropriate internal documentation team, I’d like to confirm a few quick details:

• Could you kindly share the specific section number or page number where this omission appears?
• Are you referencing the PDF version available on the Intel website, or another format (e.g., printed or offline copy)?
• Have you encountered any similar inconsistencies or would you like to report anything else while we're on this topic?

Have a nice day!

Best regards,

Von M.

Intel Customer Support Technician

[nickbell]

Hi Von M,

Answers to your questions:

*) The section referred in my original post is:

CHAPTER 4 INSTRUCTION SET REFERENCE, M-U
  4.3 INSTRUCTIONS (M-U)
    SCAS/SCASB/SCASW/SCASD—Scan String

*) Yes, it is the PDF file named "253667-087-sdm-vol-2b.pdf" downloaded from this link:

https://cdrdv2.intel.com/v1/dl/getContent/671241

The document itself is named:

"Intel® 64 and IA-32 Architectures Software Developer's Manual Volume 2B: Instruction Set Reference, M-U"

*) There is one more potential document misalignment I discovered in the following document:

"Intel® 64 and IA-32 Architectures Software Developer's Manual Volume 2A: Instruction Set Reference, A-L"

https://cdrdv2.intel.com/v1/dl/getContent/671199

CHAPTER 3 INSTRUCTION SET REFERENCE, A-L
  3.3 INSTRUCTIONS (A-L)
    FCOMI/FCOMIP/ FUCOMI/FUCOMIP—Compare Floating-Point Values and Set EFLAGS

The issue I've noticed here is that the column "Instruction" refers to the ST(0) register only with "ST" - like "FCOMI ST, ST(i)" while in the description of this same opcode - the "ST" is explicitly specified as "ST(0)" (important clarification). It is kind of misleading - especially when all other x87 FPU instruction sections have this "ST(0)" spelled explicitly in the "Instruction" column (see for example "FADD/FADDP/FIADD—Add"). It's just a uniformity discrepancy.

I hope this helps.

Best Regards,

Nikolay

[VonM_Intel]

Hello nickbell,

Have you had a chance to review my previous response? Please let us know if you require any further assistance. I'm here to help.

Best regards,

Von M.

Intel Customer Support Technician

[VonM_Intel]

Hello nickbell,

Thank you for your response. I’ve noted your question and will get back to you as soon as possible

Best regards,

Von M.

Intel Customer Support Technician

[VonM_Intel]

Hello nickbell,

Thank you for your patience in this matter. We reviewed your case, and this particular matter falls under the scope of our Resource and Documentation (RDC) team, who are the best equipped to assist you further. To streamline this matter for you, I’ve gone ahead and sent a private email with additional details and next steps. You should receive it shortly at the email address associated with your Intel account. 

Best regards,

Von M.

Intel Customer Support Technician

[VonM_Intel]

Hello nickbell,

Additionally, I will now close this inquiry now. If you need further assistance, please submit a new question as this thread will no longer be monitored.

Best regards,

Von M.

Intel Customer Support Technician